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• Android SDK Manager and AVD Manager doesn't have the correct information and fails to update on Ubun

  - by Johan Carlsson

  I'm trying to install Android SDK on Ubuntu but fail when I try to use the SDK Manager and AVD Manager to install Android platforms. I've downloaded: android-sdk_r04-linux_86.tgz The I start the SDK Manager and AVD Manager (UI) according to the README file: ./tools/android And I get the following Installed Packages: - Install SDK Tools, revision 4 Available Packages: - https://dl-ssl.google.com/android/repoisotry/repository.xml - This repository requires a more recent version of the Tools. Please update- - Android SDK Tools, revision 4 - Archive for Linux (comment: funny since rev 4 seems to be what's installed this is what seems to be installed) Now doing an update of the Android SDK Tools, revision 4 or everything results in 99% progress and then the application hangs. Here's the console feedback: johanc@johan-desktop:~/android/android-sdk-linux_86$ tools/android Starting Android SDK and AVD Manager No command line parameters provided, launching UI. See 'android --help' for operations from the command line. Error: null In the app I choose to upgate the following package: Package Description Android SDK Tools, revision 4 Archive Description Archive for Linux Size: 15 MiB SHA1: 99380c9330c1c3728c836206947350cc00fa28c2 Site https://dl-ssl.google.com/android/repository/repository.xml The console output reads (and the app hangs at 99%): Exception in thread "Installing Archives" java.lang.AssertionError at com.android.sdkuilib.internal.tasks.ProgressTask.incProgress(ProgressTask.java:97) at com.android.sdkuilib.internal.repository.UpdaterData$2.run(UpdaterData.java:358) at com.android.sdkuilib.internal.tasks.ProgressTask$1.run(ProgressTask.java:135)

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• Force close message when preferences are called via menu button

  - by Dan T

  I see no problem in the code. Help? preferences.xml <?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"> <ListPreference android:title="Gender" android:summary="Are you male or female?" android:key="genderPref" android:defaultValue="male" android:entries="@array/genderArray" android:entryValues="@array/genderValues" /> <ListPreference android:title="Weight" android:summary="How much do you weigh?" android:key="weightPref" android:defaultValue="180" android:entries="@array/weightArray" android:entryValues="@array/weightValues" /> </PreferenceScreen> arrays.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string-array name="genderArray"> <item>Male</item> <item>Female</item> </string-array> <string-array name="genderValues"> <item>male</item> <item>female</item> </string-array> <string-array name="weightArray"> <item>120</item> <item>150</item> <item>180</item> <item>210</item> <item>240</item> <item>270</item> </string-array> <string-array name="weightValues"> <item>120</item> <item>150</item> <item>180</item> <item>210</item> <item>240</item> <item>270</item> </string-array> </resources> Preferences.java: package com.dantoth.drinkingbuddy; import android.os.Bundle; import android.preference.PreferenceActivity; public class Preferences extends PreferenceActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); }; } butts.xml (idk why it's butts but I've gotten used to it now. really just sets up the menu button) <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/settings" android:title="Settings" android:icon="@drawable/ic_menu_settings" /> <item android:id="@+id/archive" android:title="Archive" android:icon="@drawable/ic_menu_archive" /> <item android:id="@+id/new_session" android:title="New Session" android:icon="@drawable/ic_menu_new" /> <item android:id="@+id/about" android:title="About" android:icon="@drawable/ic_menu_about" /> </menu> within DrinkingBuddy.java: @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.settings: startActivity(new Intent(this, Preferences.class)); return true; case R.id.archive: Toast.makeText(this, "Expect to see your old drinking sessions here.", Toast.LENGTH_LONG).show(); return true; //ETC. } return false; That's it. I can press the menu button on the phone and see the menu items I created, but when I click on the "Settings" (r.id.settings) it FC. Do I have to do anything to the manifest/other thing to get this to work??

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• Android Remote Service Keeps Restarting

  - by user244190

  Ok so I've built an app that uses a remote service to do some real time GPS tracking. I am using the below code to start and bind to the service. The remote service uses aidl, sets up a notification icon, runs the GPS and locationListener. In onLocationChanged, a handler sends data back to the caller via the callback. Pretty much straight out of the examples and resources online. I want to allow the service to continue running even if the app closes. When the app is restarted, I want the app to again bind to the service (using the existing service if running) and again receive data from the tracker. I currently have the app mode set to singleTask and cannot use singleinstance due to another issue. My problem is that quit often even after the app and service are shut down either from the app itself, or from AdvancedTaskKiller, or a Forceclose, the service will restart and initialize the GPS. touching on the notification will open the app. I again stop the tracking which removes the notification and turns off the GPS Close the app, and again after a few seconds the service restarts. The only way to stop it is to power off the phone. What can I do to stop this from happening. Does it have to do with the mode of operation? START_NOT_STICKY or START_REDELIVER_INTENT? Or do I need to use stopSelf()? My understanding is that if the service is not running when I use bindService() that the service will be created...so do I really need to use start/stopService also? I thought I would need to use it if I want the service to run even after the app is closed. That is why i do not unbind/stop the service in onDestroy(). Is this correct? I've not seen any other info an this, so I,m not sure where to look. Please Help! Thanks Patrick //Remote Service Startup try{ startService(); }catch (Exception e) { Toast.makeText(ctx, e.getMessage().toString(), Toast.LENGTH_SHORT).show(); } } try{ bindService(); }catch (Exception e) { Toast.makeText(ctx, e.getMessage().toString(), Toast.LENGTH_SHORT).show(); } //Remote service shutdown try { unbindService(); }catch(Exception e) { Toast.makeText(ctx, e.getMessage().toString(), Toast.LENGTH_SHORT).show(); } try{ stopService(); }catch(Exception e) { Toast.makeText(ctx, e.getMessage().toString(), Toast.LENGTH_SHORT).show(); } private void startService() { if( myAdapter.trackServiceStarted() ) { if(SETTING_DEBUG_MODE) Toast.makeText(this, "Service already started", Toast.LENGTH_SHORT).show(); started = true; if(!myAdapter.trackDataExists()) insertTrackData(); updateServiceStatus(); } else { startService( new Intent ( "com.codebase.TRACKING_SERVICE" ) ); Log.d( "startService()", "startService()" ); started = true; updateServiceStatus(); } } private void stopService() { stopService( new Intent ( "com.codebase.TRACKING_SERVICE" ) ); Log.d( "stopService()", "stopService()" ); started = false; updateServiceStatus(); } private void bindService() { bindService(new Intent(ITrackingService.class.getName()), mConnection, Context.BIND_AUTO_CREATE); bindService(new Intent(ITrackingSecondary.class.getName()), mTrackingSecondaryConnection, Context.BIND_AUTO_CREATE); started = true; } private void unbindService() { try { mTrackingService.unregisterCallback(mCallback); } catch (RemoteException e) { // There is nothing special we need to do if the service // has crashed. e.getMessage(); } try { unbindService(mTrackingSecondaryConnection); unbindService(mConnection); } catch (Exception e) { // There is nothing special we need to do if the service // has crashed. e.getMessage(); } started = false; } private ServiceConnection mConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { // This is called when the connection with the service has been // established, giving us the service object we can use to // interact with the service. We are communicating with our // service through an IDL interface, so get a client-side // representation of that from the raw service object. mTrackingService = ITrackingService.Stub.asInterface(service); // We want to monitor the service for as long as we are // connected to it. try { mTrackingService.registerCallback(mCallback); } catch (RemoteException e) { // In this case the service has crashed before we could even // do anything with it; we can count on soon being // disconnected (and then reconnected if it can be restarted) // so there is no need to do anything here. } } public void onServiceDisconnected(ComponentName className) { // This is called when the connection with the service has been // unexpectedly disconnected -- that is, its process crashed. mTrackingService = null; } }; private ServiceConnection mTrackingSecondaryConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { // Connecting to a secondary interface is the same as any // other interface. mTrackingSecondaryService = ITrackingSecondary.Stub.asInterface(service); try{ mTrackingSecondaryService.setTimePrecision(SETTING_TIME_PRECISION); mTrackingSecondaryService.setDistancePrecision(SETTING_DISTANCE_PRECISION); } catch (RemoteException e) { // In this case the service has crashed before we could even // do anything with it; we can count on soon being // disconnected (and then reconnected if it can be restarted) // so there is no need to do anything here. } } public void onServiceDisconnected(ComponentName className) { mTrackingSecondaryService = null; } }; //TrackService onDestry() public void onDestroy() { try{ if(lm != null) { lm.removeUpdates(this); } if(mNotificationManager != null) { mNotificationManager.cancel(R.string.local_service_started); } Toast.makeText(this, "Service stopped", Toast.LENGTH_SHORT).show(); }catch (Exception e){ Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show(); } // Unregister all callbacks. mCallbacks.kill(); // Remove the next pending message to increment the counter, stopping // the increment loop. mHandler.removeMessages(REPORT_MSG); super.onDestroy(); } ServiceConnectionLeaked: I'm seeing a lot of these: 04-21 09:25:23.347: ERROR/ActivityThread(3246): Activity com.codebase.GPSTest has leaked ServiceConnection com.codebase.GPSTest$6@4482d428 that was originally bound here 04-21 09:25:23.347: ERROR/ActivityThread(3246): android.app.ServiceConnectionLeaked: Activity com.codebase.GPSTest has leaked ServiceConnection com.codebase.GPSTest$6@4482d428 that was originally bound here 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread$PackageInfo$ServiceDispatcher.<init>(ActivityThread.java:977) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread$PackageInfo.getServiceDispatcher(ActivityThread.java:872) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ApplicationContext.bindService(ApplicationContext.java:796) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.content.ContextWrapper.bindService(ContextWrapper.java:337) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at com.codebase.GPSTest.bindService(GPSTest.java:2206) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at com.codebase.GPSTest.onStartStopClick(GPSTest.java:1589) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at com.codebase.GPSTest.onResume(GPSTest.java:1210) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1149) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.Activity.performResume(Activity.java:3763) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2937) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2965) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2516) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3625) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.access$2300(ActivityThread.java:119) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1867) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.os.Handler.dispatchMessage(Handler.java:99) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.os.Looper.loop(Looper.java:123) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at android.app.ActivityThread.main(ActivityThread.java:4363) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at java.lang.reflect.Method.invokeNative(Native Method) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at java.lang.reflect.Method.invoke(Method.java:521) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 04-21 09:25:23.347: ERROR/ActivityThread(3246): at dalvik.system.NativeStart.main(Native Method) And These: Is this ok, or do I need to make sure i deactivate/close 04-21 09:58:55.487: INFO/dalvikvm(3440): Uncaught exception thrown by finalizer (will be discarded): 04-21 09:58:55.487: INFO/dalvikvm(3440): Ljava/lang/IllegalStateException;: Finalizing cursor android.database.sqlite.SQLiteCursor@447ef258 on gps_data that has not been deactivated or closed 04-21 09:58:55.487: INFO/dalvikvm(3440): at android.database.sqlite.SQLiteCursor.finalize(SQLiteCursor.java:596) 04-21 09:58:55.487: INFO/dalvikvm(3440): at dalvik.system.NativeStart.run(Native Method)

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• Dynamic gridview columns event problem

  - by ropstah

  Hi, i have a GridView (selectable) in which I want to generate a dynamic GridView in a new row BELOW the selected row. I can add the row and gridview dynamically in the Gridview1 PreRender event. I need to use this event because: _OnDataBound is not called on every postback (same for _OnRowDataBound) _OnInit is not possible because the 'Inner table' for the Gridview is added after Init _OnLoad is not possible because the 'selected' row is not selected yet. I can add the columns to the dynamic GridView based on my ITemplate class. But now the button events won't fire.... Any suggestions? The dynamic adding of the gridview: Private Sub GridView1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.PreRender Dim g As GridView = sender g.DataBind() If g.SelectedRow IsNot Nothing AndAlso g.Controls.Count &gt; 0 Then Dim t As Table = g.Controls(0) Dim r As New GridViewRow(-1, -1, DataControlRowType.DataRow, DataControlRowState.Normal) Dim c As New TableCell Dim visibleColumnCount As Integer = 0 For Each d As DataControlField In g.Columns If d.Visible Then visibleColumnCount += 1 End If Next c.ColumnSpan = visibleColumnCount Dim ph As New PlaceHolder ph.Controls.Add(CreateStockGrid(g.SelectedDataKey.Value)) c.Controls.Add(ph) r.Cells.Add(c) t.Rows.AddAt(g.SelectedRow.RowIndex + 2, r) End If End Sub Private Function CreateStockGrid(ByVal PnmAutoKey As String) As GridView Dim col As Interfaces.esColumnMetadata Dim coll As New BLL.ViewStmCollection Dim entity As New BLL.ViewStm Dim query As BLL.ViewStmQuery = coll.Query Me._gridStock.AutoGenerateColumns = False Dim buttonf As New TemplateField() buttonf.ItemTemplate = New QuantityTemplateField(ListItemType.Item, "", "Button") buttonf.HeaderTemplate = New QuantityTemplateField(ListItemType.Header, "", "Button") buttonf.EditItemTemplate = New QuantityTemplateField(ListItemType.EditItem, "", "Button") Me._gridStock.Columns.Add(buttonf) For Each col In coll.es.Meta.Columns Dim headerf As New QuantityTemplateField(ListItemType.Header, col.PropertyName, col.Type.Name) Dim itemf As New QuantityTemplateField(ListItemType.Item, col.PropertyName, col.Type.Name) Dim editf As New QuantityTemplateField(ListItemType.EditItem, col.PropertyName, col.Type.Name) Dim f As New TemplateField() f.HeaderTemplate = headerf f.ItemTemplate = itemf f.EditItemTemplate = editf Me._gridStock.Columns.Add(f) Next query.Where(query.PnmAutoKey.Equal(PnmAutoKey)) coll.LoadAll() Me._gridStock.ID = "gvChild" Me._gridStock.DataSource = coll AddHandler Me._gridStock.RowCommand, AddressOf Me.gv_RowCommand Me._gridStock.DataBind() Return Me._gridStock End Function The ITemplate class: Public Class QuantityTemplateField : Implements ITemplate Private _itemType As ListItemType Private _fieldName As String Private _infoType As String Public Sub New(ByVal ItemType As ListItemType, ByVal FieldName As String, ByVal InfoType As String) Me._itemType = ItemType Me._fieldName = FieldName Me._infoType = InfoType End Sub Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.InstantiateIn Select Case Me._itemType Case ListItemType.Header Dim l As New Literal l.Text = "&lt;b&gt;" & Me._fieldName & "</b>" container.Controls.Add(l) Case ListItemType.Item Select Case Me._infoType Case "Button" Dim ib As New Button() Dim eb As New Button() ib.ID = "InsertButton" eb.ID = "EditButton" ib.Text = "Insert" eb.Text = "Edit" ib.CommandName = "Edit" eb.CommandName = "Edit" AddHandler ib.Click, AddressOf Me.InsertButton_OnClick AddHandler eb.Click, AddressOf Me.EditButton_OnClick container.Controls.Add(ib) container.Controls.Add(eb) Case Else Dim l As New Label l.ID = Me._fieldName l.Text = "" AddHandler l.DataBinding, AddressOf Me.OnDataBinding container.Controls.Add(l) End Select Case ListItemType.EditItem Select Case Me._infoType Case "Button" Dim b As New Button b.ID = "UpdateButton" b.Text = "Update" b.CommandName = "Update" b.OnClientClick = "return confirm('Sure?')" container.Controls.Add(b) Case Else Dim t As New TextBox t.ID = Me._fieldName AddHandler t.DataBinding, AddressOf Me.OnDataBinding container.Controls.Add(t) End Select End Select End Sub Private Sub InsertButton_OnClick(ByVal sender As Object, ByVal e As EventArgs) Console.WriteLine("insert click") End Sub Private Sub EditButton_OnClick(ByVal sender As Object, ByVal e As EventArgs) Console.WriteLine("edit click") End Sub Private Sub OnDataBinding(ByVal sender As Object, ByVal e As EventArgs) Dim boundValue As Object = Nothing Dim ctrl As Control = sender Dim dataItemContainer As IDataItemContainer = ctrl.NamingContainer boundValue = DataBinder.Eval(dataItemContainer.DataItem, Me._fieldName) Select Case Me._itemType Case ListItemType.Item Dim fieldLiteral As Label = sender fieldLiteral.Text = boundValue.ToString() Case ListItemType.EditItem Dim fieldTextbox As TextBox = sender fieldTextbox.Text = boundValue.ToString() End Select End Sub End Class

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• How to play ringtone/alarm sound in Android

  - by Federico

  I have been looking everywhere how to play a ringtone/alarm sound in android. I press a button and I want to play a ringtone/alarm sound. I could not find a easy, straightforward sample. Yes, I already looked at Alarm clock source code... but it is not straightforward and I cannot compile it. I cannot make this work: Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM); mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDataSource(this, alert); final AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE); if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) { player.setAudioStreamType(AudioManager.STREAM_ALARM); player.setLooping(true); player.prepare(); player.start(); } I get this error: 04-11 17:15:27.638: ERROR/MediaPlayerService(30): Couldn't open fd for content://settings/system/ringtone So.. please if somebody knows how to play a default ringtone/alarm let me know. I prefer not to upload any file. Just play a default ringtone.

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• How yo play rington/alarm sound in Android

  - by Federico

  I have been looking everywhere how to play a $#@&! rington/alarm sound in android. I press a button and I want to play a rington/alarm sound. I could not find a easy, strsight forward sample... YES! I already looked at Alarm clock source code... but it is not straight forward and I cannot compile it neither. I cannot make this work: Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM); mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDataSource(this, alert); final AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE); if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) { player.setAudioStreamType(AudioManager.STREAM_ALARM); player.setLooping(true); player.prepare(); player.start(); } I get this error 04-11 17:15:27.638: ERROR/MediaPlayerService(30): Couldn't open fd for content://settings/system/ringtone So.. please if somebody knows how to play a default rington/alarm let me know. I prefer not to upload any file. Just play a default rington. Thanks, Federico

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• Getting hardware floating point with android NDK

  - by Goz

  Hi All, I've begun playing with the android NDK. One of the things I've just learnt is about creating an application.mk file to specify the armv7 abi. I'm building the san-angeles example with the following parameters. APP_MODULES := sanangeles APP_PROJECT_PATH := $(call my-dir)/../ APP_OPTIM := release APP_ABI := armeabi-v7a However this seems to run at exactly the same speed as it did before (ie badly). Am I just GL limited and not CPU limited or is something wrong here? I have noticed when I compile that I get the following command line options emitted: -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb The thing that worries me there is the "softfp". There IS mention of the v7 abi, the VFP fpu stuff and I'm guessing the "thumb" refers to the "thumb-2" instructions (Though I don't know what exactly these are). However that "softfp" does concern me. Shouldn't it be "hardfp"? Anyone got any ideas on these questions? I think I'm probably about ready to start implementing some GL ES 2.0 code for my HTC Desire but I'd like to make sure I'm getting the best possible speed out of it :) Cheers in advance!

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• Android 1.5/1.6 issue with style and autogenerated R.java file

  - by Gaks

  I'm having strange issue with R.java file and styles defined in my resources. Here's some code: In res/values/strings.xml: <style parent="android:Theme.Dialog" name="PopupWindowStyle"> <item name="android:windowBackground">@drawable/bg1</item> <item name="android:textColor">@android:color/black</item> </style> In AndroidManifest.xml: <activity android:name=".RegisterScreen" android:icon="@drawable/ico" android:label="@string/applicationName" android:theme="@style/PopupWindowStyle" android:configChanges="locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|fontScale"> </activity> In autogenerated gen/.../R.java: public static final class style { public static final int PopupWindowStyle=0x7f090000; } After some changes in the project, eclipse changed autogenerated value for PopupWindowStyle from 0x7f080000 to 0x7f090000. After that, on Android 1.5, RegisterScreen activity is displayed without PopupWindowStyle style - there is an error displayed in logcat: Skipping entry 0x7f090000 in package table 0 because it is not complex! On Android 1.6 however everything works fine - PopupWindowStyle works like it was before it's integer value has changed. I was testing this issue, by reverting the source code to older revisions. I can confirm, that this problem started occurring after src code commit, which changed two files completely unrelated to this part of code - and an autogenerated R.java file. Any idea what could cause that?

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• Android - Temporal & Ancestral Navigation with ViewPager & Fragments

  - by rascuache

  I'm trying to work out the best way to implement the 'ancestral' and 'temporal' navigation (utilising the up button and back buttons), for a music player I'm working on. Currently, the user is presented with a viewpager, and can page between three main fragments (ArtistMain, AlbumMain and SongMain). Upon choosing an item inside that view, a fragment transaction occurs, and the viewpager goes out of view, replaced by a new fragment (AlbumSub, Songsub or player, depending on where the user came from). The user can then navigate deeper, until a song is chosen, and then they are taken to the 'player' screen. I guess the question is: How do I implement all of this conditional navigation? I'm fairly new to android and programming in general, and I just can't seem to come up with an efficient way to achieve this. At the moment, as each fragment is brought into view, the app is checking to see where the user just came from, and then determines where the user should be taken if back or home is called. This means I have a booleans like "fromArtistMain", "fromAlbumSub", and I'm checking for things like "fromSongSub && fromPlayer".. it's all turning into a bit of a mess. I've drawn a diagram (in paint, sorry!!), to depict the navigation I'm trying to achieve. The yellow represents the 'up' button press, the red is the 'back' button press, and blue is just normal navigation. The green arrows are meant to represent the view paging: Any advice is welcome. It might take something really simple that I've just overlooked. Thanks for your time.

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• Android: Error trying to edit button text after thread sleep

  - by Vass

  (programming Android in Eclipse) I am trying to set up a delay in changing the text in a button. I am getting errors only after there is a delay and the text needs to be changed. Here is the simplified code without a while loop: final Button button_target = (Button) findViewById(R.id.button_target); Thread textChange = new Thread(new Runnable() { public void run(){ button_target.setText("fog"); try{ Thread.sleep(3000); }catch(InterruptedException e){} } }); textChange.start(); And now here is the code where a change of text on the button is required after the sleep which now causes and error and exit (forced): final Button button_target = (Button) findViewById(R.id.button_target); Thread textChange = new Thread(new Runnable() { public void run(){ button_target.setText("cat"); try{ Thread.sleep(3000); }catch(InterruptedException e){} button_target.setText("dog"); } }); textChange.start(); what am I doing to cause the error? Is there another method that I should do to be able to invoke a sleep or delay to the thread so that a text change operation can be performed? (the actual code has a while loop but I believe this form puts the error in highlight)

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• How to show virtual keypad in an android activity

  - by Maxood

  Why am i not able to show the virtual keyboard in my activity. Here is my code: package som.android.keypad; import android.app.Activity; import android.os.Bundle; import android.view.inputmethod.InputMethodManager; import android.widget.EditText; public class ShowKeypad extends Activity { InputMethodManager imm; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); EditText editText = (EditText)findViewById(R.id.EditText); ((InputMethodManager) getSystemService(this.INPUT_METHOD_SERVICE)).showSoftInput(editText, 0); } } <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="som.android.keypad" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".ShowKeypad" android:windowSoftInputMode="stateAlwaysVisible" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="4" /> </manifest>

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• Large ListView containing images in Android

  - by Marco W.

  For various Android applications, I need large ListViews, i.e. such views with 100-300 entries. All entries must be loaded in bulk when the application is started, as some sorting and processing is necessary and the application cannot know which items to display first, otherwise. So far, I've been loading the images for all items in bulk as well, which are then saved in an ArrayList<CustomType> together with the rest of the data for each entry. But of course, this is not a good practice, as you're very likely to have an OutOfMemoryException then: The references to all images in the ArrayList prevent the garbage collector from working. So the best solution is, obviously, to load only the text data in bulk whereas the images are then loaded as needed, right? The Google Play application does this, for example: You can see that images are loaded as you scroll to them, i.e. they are probably loaded in the adapter's getView() method. But with Google Play, this is a different problem, anyway, as the images must be loaded from the Internet, which is not the case for me. My problem is not that loading the images takes too long, but storing them requires too much memory. So what should I do with the images? Load in getView(), when they are really needed? Would make scrolling sluggish. So calling an AsyncTask then? Or just a normal Thread? Parametrize it? I could save the images that are already loaded into a HashMap<String,Bitmap>, so that they don't need to be loaded again in getView(). But if this is done, you have the memory problem again: The HashMap stores references to all images, so in the end, you could have the OutOfMemoryException again. I know that there are already lots of questions here that discuss "Lazy loading" of images. But they mainly cover the problem of slow loading, not too much memory consumption.

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• Android Linear Layout steching

  - by Maffo

  Hi, I think that's a rather simple Question but I don't get it the way I want it to. I Want do do a Linear Layout in Android with 3 areas. The Top area should have a fixed height, fill_parent width. The second, below the first, should use all the room available, fill_parent width. The third, below the second, should have fixed height, fill_parent width. Here is what i got: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="bottom" android:background="#ff63a920"> <LinearLayout android:id="@+id/top_bar" android:layout_width="fill_parent" android:layout_height="32dp" > </LinearLayout> <com.google.android.maps.MapView android:id="@+id/mymapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:enabled="true" android:clickable="true" /> <LinearLayout android:id="@+id/bottombar" android:layout_width="fill_parent" android:layout_height="32dp" > </LinearLayout> </LinearLayout> The Problem is, that the mapview in the middle ist too big, so it pushes out the topbar. I Hope you can help me.

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• Dismiss android activity displayed as Popup

  - by Sit

  So i have a service, that starts an activity displayed as a Popup thank's to "android:style/Theme.Dialog" This Activity shows a Listview, with a list of application. On each element of the listview, there is a short description of the application, and two buttons. 1 for launching the application 2 for displaying a toast with more informations. Here is the code in my service : it starts the activity Intent intent = new Intent(this, PopUpActivity.class); intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); getApplicationContext().startActivity(intent); this activity uses a custom layout, with a listview, adapted with a custom ArrayAdapter In this adaptater, i've put an action on the start button in order to start the current application Button lanceur = (Button) v.findViewById(R.id.Buttonlancer); lanceur.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { p.start(mcontext); } }); with p.start, i start the application. But now, if i press "back" from the application, i go back to the popup... and i can start another application. I don't want it to be possible. That's why i wish i could dismiss/destroy/finish my PopupActivity, but i can't manage to do it with the code i have.

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• Android: Adding static header to the top of a ListActivity

  - by GrandPrix

  Currently I have a class that is extending the ListActivity class. I need to be able to add a few static buttons above the list that are always visible. I've attempted to grab the ListView using getListView() from within the class. Then I used addHeaderView(View) to add a small layout to the top of the screen. Header.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <Button android:id="@+id/testButton" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Income" android:textSize="15dip" android:layout_weight="1" /> </LinearLayout> Before I set the adapter I do: ListView lv = getListView(); lv.addHeaderView(findViewById(R.layout.header)); This results in nothing happening to the ListView except for it being populated from my database. No buttons appear above it. Another approach I tried as adding padding to the top of the ListView. When I did this it successfully moved down, however, if I added any above it, it pushed the ListView over. No matter what I do it seems as though I cannot put a few buttons above the ListView when I used the ListActivity. Thanks in advance. synic, I tried your suggestion previously. I tried it again just for the sake of sanity, and the button did not display. Below is the layout file for the activity and the code I've implemented in the oncreate(). //My listactivity I am trying to add the header to public class AuditActivity extends ListActivity { Budget budget; @Override public void onCreate(Bundle savedInstanceState) { Cursor test; super.onCreate(savedInstanceState); setContentView(R.layout.audit); ListView lv = getListView(); LayoutInflater infalter = getLayoutInflater(); ViewGroup header = (ViewGroup) infalter.inflate(R.layout.header, lv, false); lv.addHeaderView(header); budget = new Budget(this); /* try { test = budget.getTransactions(); showEvents(test); } finally { } */ // switchTabSpecial(); } Layout.xml for activity: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <ListView android:id="@android:id/list" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@android:id/empty" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/empty" /> </LinearLayout>

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• Android -- autoLink

  - by Ryan

  Is there any way to Linkify a specific TextView that is contained within a ListView? I tried using android:autoLink="all" but that didn't work. I was getting an out of context error. Important also to note: the ListView is my second view in the ViewFlipper. I have also tried: View mItemView = mAdapter.getView(2, null, null); TextView infoText = (TextView) mItemView.findViewById(R.id.rowText2); Linkify.addLinks(infoText, Linkify.ALL); Right after the adapter was bound to the ListView and the View was switched. No luck. Here is the stack trace: 06-03 21:19:25.180: ERROR/AndroidRuntime(1214): Uncaught handler: thread main exiting due to uncaught exception 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.app.ApplicationContext.startActivity(ApplicationContext.java:550) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.content.ContextWrapper.startActivity(ContextWrapper.java:248) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.text.style.URLSpan.onClick(URLSpan.java:62) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.text.method.LinkMovementMethod.onTouchEvent(LinkMovementMethod.java:216) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.widget.TextView.onTouchEvent(TextView.java:6560) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.View.dispatchTouchEvent(View.java:3709) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.app.Activity.dispatchTouchEvent(Activity.java:2061) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.os.Handler.dispatchMessage(Handler.java:99) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.os.Looper.loop(Looper.java:123) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at android.app.ActivityThread.main(ActivityThread.java:4363) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at java.lang.reflect.Method.invoke(Method.java:521) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 06-03 21:19:25.219: ERROR/AndroidRuntime(1214): at dalvik.system.NativeStart.main(Native Method) Any Ideas? Thanks in advance!!!

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• Autocomplettextview filtered by input keys

  - by soclose

  Hi I use autocompletetextview with SimpleCursorAdapter to get data from sqlite. I'd like to get its drop down list started by the entered key. In my autocompletetextview, the list is not shown or filtered by input text. eg, If user enter "an", all text started with "an" will be seen in this list. In Java public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new); txtPNo = (AutoCompleteTextView) findViewById(R.id.txtSTo); mDbHelper = new DBAdapter(this); mDbHelper.open(); SimpleCursorAdapter notes = fillToData(); txtPhoneNo.setAdapter(notes); } private SimpleCursorAdapter fillToData() { Cursor c = mDbHelper.getName(); startManagingCursor(c); String[] from = new String[] {DBAdapter.Name,DBAdapter.No1}; int[] to = new int[] {R.id.txtName,R.id.txtNo1}; Log.d(TAG, "cursor.getCount()=" + c.getCount()); SimpleCursorAdapter notes = new SimpleCursorAdapter(this, R.layout.autocomplete, c, from, to); return notes; } In new.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:background="#ffffff" > <AutoCompleteTextView android:id="@+id/txtSTo" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="18sp" android:textColor="#000000" android:hint="To" android:completionThreshold="1" android:selectAllOnFocus="true" android:layout_alignParentTop = "true" android:layout_alignParentLeft="true"/> </RelativeLayout> In autocomplete.xml <?xml version="1.0" encoding="utf-8"?> <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:stretchColumns="0" android:padding="5dp"> <TableRow android:padding="5dp"> <LinearLayout android:orientation="vertical"> <TextView android:id="@+id/txtName" xmlns:android="http://schemas.android.com/apk/res/android" android:textColor="#000000" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:id="@+id/txtNo1" xmlns:android="http://schemas.android.com/apk/res/android" android:textColor="#000000" android:layout_width="wrap_content" android:layout_height="wrap_content"/> </LinearLayout> </TableRow> </TableLayout> How to implement to get just filtered list?

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• How to do this layout? (Link on Image)

  - by Spredzy

  Hi all, I was wondering how to obtain this result : http://img718.imageshack.us/img718/6173/screenshot20100411at126.png This is what I tried : <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#CCCCCC" android:orientation="horizontal" android:layout_weight="0"> <Button android:id="@+id/btn_cancel" android:text="@string/cancel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5px" android:gravity="left" /> <Button android:id="@+id/btn_save" android:text="@string/save" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5px" android:layout_toRightOf="@id/btn_cancel" android:gravity="right"/> </RelativeLayout> I tried to play with the layout_width properties and setting them up to fill parents both of them but did not work, if anyone has an idea ... Thank you !

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• How do I vertically align an item within a list using relative layout?

  - by Jay Askren

  I am using a list view in Android 1.5 to show a list of images and text next to the image. I am trying to vertically center the text but the text is at the top of the row instead of centered. Below is my layout: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/row" android:layout_width="fill_parent" android:layout_height="wrap_content" android:padding="10dip"> <ImageView android:id="@+id/item_image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingRight="10dip" android:src="@drawable/default_image" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:gravity="center_vertical"/> <TextView android:id="@+id/item_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/item_image" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:gravity="center_vertical" /> </RelativeLayout> It seems strange that I need to set alignParentTop="true" when I'm trying to vertically center the text, but if I don't the text does not even show up. What am I doing wrong?

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• layout messed up once spinner has entries

  - by AndyAndroid

  Hello, I have <LinearLayout android:id="@+id/LinearLayoutPlayer" xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <Spinner android:id="@+id/Spinner01" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="100"></Spinner> <ToggleButton android:text="@+id/ToggleButton01" android:id="@+id/ToggleButton01" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_weight="1"></ToggleButton> </LinearLayout> Which displays a spinner and next to it a toggle button. Everything okay so far. Of course the spinner need some entries, so I add to the spinner the attribute: android:entries="@array/myentries" The problem now is that the toggle button is a bit lower than the spinner and the botton of the toggle button is cut off, maybe 3 or 5 lines of pixels. Anyone an idea what is wrong here? Android is version 2.2 Thanks!

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• Usage CursorLoader without ContentProvider

  - by sealskej

  Android SDK documentation says that startManagingCursor() method is depracated: This method is deprecated. Use the new CursorLoader class with LoaderManager instead; this is also available on older platforms through the Android compatibility package. This method allows the activity to take care of managing the given Cursor's lifecycle for you based on the activity's lifecycle. That is, when the activity is stopped it will automatically call deactivate() on the given Cursor, and when it is later restarted it will call requery() for you. When the activity is destroyed, all managed Cursors will be closed automatically. If you are targeting HONEYCOMB or later, consider instead using LoaderManager instead, available via getLoaderManager() So I would like to use CursorLoader. But how can I use it with custom CursorAdapter and without ContentProvider, when I needs URI in constructor of CursorLoader?

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• Android SDK having trouble with ADB

  - by MowDownJoe

  So, I installed the Android SDK, Eclipse, and the ADT. Upon firing up Eclipse the first time after setting up the ADT, this error popped up: [2012-05-29 12:11:06 - adb] /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-05-29 12:11:06 - adb] 'adb version' failed! /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-05-29 12:11:06 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-05-29 12:11:06 - adb] /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-05-29 12:11:06 - adb] 'adb version' failed! /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-05-29 12:11:06 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory I'm not quite sure how this is. Feels weird that there's a missing library there. I'm using Ubuntu 12.04. No adb is a pretty big blow as an Android developer. How do I fix?

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• C++ developer looks for book(s) about Android apps & widgets (& services etc.) [on hold]

  - by Valmond

  I'm senior C++ developer, I have also programmed professionally j2me some years. I'd like to make some apps and widgets for Android and I'd like to read up a bit on this new java stuff Android is using. I have (of course) checked out some tutorials and so but it seems I miss the basics, I can compile some stuff (read: examples) in eclipse but I just don't know how to, for example, add a service or what an 'intent' is, why my widget isn't called but successfully launches the main app when clicked and so on. So, what is a really good book for someone that is a developer but mostly need the hard facts about developing something specific like Android apps & widgets? Thanks a bunch!

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• parseInt and viewflipper layout problems

  - by user1234167

  I have a problem with parseInt it throws the error: unable to parse 'null' as integer. My view flipper is also not working. Hopefully this is an easy enough question. Here is my activity: import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.ViewFlipper; import xml.parser.dataset; public class XmlParserActivity extends Activity implements OnClickListener { private final String MY_DEBUG_TAG = "WeatherForcaster"; // private dataset myDataSet; private LinearLayout layout; private int temp= 0; /** Called when the activity is first created. */ //the ViewSwitcher private Button btn; private ViewFlipper flip; // private TextView tv; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); layout=(LinearLayout)findViewById(R.id.linearlayout1); btn=(Button)findViewById(R.id.btn); btn.setOnClickListener(this); flip=(ViewFlipper)findViewById(R.id.flip); //when a view is displayed flip.setInAnimation(this,android.R.anim.fade_in); //when a view disappears flip.setOutAnimation(this, android.R.anim.fade_out); // String postcode = null; // public String getPostcode { // return postcode; // } //URL newUrl = c; // myweather.setText(c.toString()); /* Create a new TextView to display the parsingresult later. */ TextView tv = new TextView(this); // run(0); //WeatherApplicationActivity postcode = new WeatherApplicationActivity(); try { /* Create a URL we want to load some xml-data from. */ URL url = new URL("http://new.myweather2.com/developer/forecast.ashx?uac=gcV3ynNdoV&output=xml&query=G41"); //String url = new String("http://new.myweather2.com/developer/forecast.ashx?uac=gcV3ynNdoV&output=xml&query="+WeatherApplicationActivity.postcode ); //URL url = new URL(url); //url.toString( ); //myString(url.toString() + WeatherApplicationActivity.getString(postcode)); // url + WeatherApplicationActivity.getString(postcode); /* Get a SAXParser from the SAXPArserFactory. */ SAXParserFactory spf = SAXParserFactory.newInstance(); SAXParser sp = spf.newSAXParser(); /* Get the XMLReader of the SAXParser we created. */ XMLReader xr = sp.getXMLReader(); /* Create a new ContentHandler and apply it to the XML-Reader*/ handler myHandler = new handler(); xr.setContentHandler(myHandler); /* Parse the xml-data from our URL. */ xr.parse(new InputSource(url.openStream())); /* Parsing has finished. */ /* Our ExampleHandler now provides the parsed data to us. */ dataset parsedDataSet = myHandler.getParsedData(); /* Set the result to be displayed in our GUI. */ tv.setText(parsedDataSet.toString()); } catch (Exception e) { /* Display any Error to the GUI. */ tv.setText("Error: " + e.getMessage()); Log.e(MY_DEBUG_TAG, "WeatherQueryError", e); } temp = Integer.parseInt(xml.parser.dataset.getTemp()); if(temp <0){ //layout.setBackgroundColor(Color.BLUE); //layout.setBackgroundColor(getResources().getColor(R.color.silver)); findViewById(R.id.flip).setBackgroundColor(Color.BLUE); } else if(temp > 0 && temp < 9) { //layout.setBackgroundColor(Color.GREEN); //layout.setBackgroundColor(getResources().getColor(R.color.silver)); findViewById(R.id.flip).setBackgroundColor(Color.GREEN); } else { //layout.setBackgroundColor(Color.YELLOW); //layout.setBackgroundColor(getResources().getColor(R.color.silver)); findViewById(R.id.flip).setBackgroundColor(Color.YELLOW); } /* Display the TextView. */ this.setContentView(tv); } @Override public void onClick(View arg0) { // TODO Auto-generated method stub onClick(View arg0) { // TODO Auto-generated method stub flip.showNext(); //specify flipping interval //flip.setFlipInterval(1000); //flip.startFlipping(); } } this is my dataset: package xml.parser; public class dataset { static String temp = null; // private int extractedInt = 0; public static String getTemp() { return temp; } public void setTemp(String temp) { this.temp = temp; } this is my handler: public void characters(char ch[], int start, int length) { if(this.in_temp){ String setTemp = new String(ch, start, length); // myParsedDataSet.setTempUnit(new String(ch, start, length)); // myParsedDataSet.setTemp; } the dataset and handler i only pasted the code that involves the temp as i no they r working when i take out the if statement. However even then my viewflipper wont work. This is my main xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/linearlayout1" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="25dip" android:text="Flip Example" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="25dip" android:id="@+id/tv" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="25dip" android:text="Flip" android:id="@+id/btn" android:onClick="ClickHandler" /> <ViewFlipper android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/flip"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="25dip" android:text="Item1a" /> </LinearLayout> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="25dip" android:id="@+id/tv2" /> </ViewFlipper> </LinearLayout> this is my logcat: 04-01 18:02:24.744: E/AndroidRuntime(7331): FATAL EXCEPTION: main 04-01 18:02:24.744: E/AndroidRuntime(7331): java.lang.RuntimeException: Unable to start activity ComponentInfo{xml.parser/xml.parser.XmlParserActivity}: java.lang.NumberFormatException: unable to parse 'null' as integer 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1830) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread.access$1500(ActivityThread.java:132) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.os.Handler.dispatchMessage(Handler.java:99) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.os.Looper.loop(Looper.java:150) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread.main(ActivityThread.java:4293) 04-01 18:02:24.744: E/AndroidRuntime(7331): at java.lang.reflect.Method.invokeNative(Native Method) 04-01 18:02:24.744: E/AndroidRuntime(7331): at java.lang.reflect.Method.invoke(Method.java:507) 04-01 18:02:24.744: E/AndroidRuntime(7331): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849) 04-01 18:02:24.744: E/AndroidRuntime(7331): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607) 04-01 18:02:24.744: E/AndroidRuntime(7331): at dalvik.system.NativeStart.main(Native Method) 04-01 18:02:24.744: E/AndroidRuntime(7331): Caused by: java.lang.NumberFormatException: unable to parse 'null' as integer 04-01 18:02:24.744: E/AndroidRuntime(7331): at java.lang.Integer.parseInt(Integer.java:356) 04-01 18:02:24.744: E/AndroidRuntime(7331): at java.lang.Integer.parseInt(Integer.java:332) 04-01 18:02:24.744: E/AndroidRuntime(7331): at xml.parser.XmlParserActivity.onCreate(XmlParserActivity.java:118) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072) 04-01 18:02:24.744: E/AndroidRuntime(7331): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1794) I hope I have given enough information about my problems. I will be extremely grateful if anyone can help me out.

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• android upload progressbarr not working

  - by pieter

  I'm a beginner in Android programming and I was tryinh to upload an image to a server. I found some code here on stackoverflow, I adjusted it and it still doesn't work. The problem is my image still won't upload. edit I solved the problem, I had no rights on the folder on the server. Now I have a new problem. the progresbarr doesn't work. it keeps saying 0 % transmitted does anyone sees an error in my code? import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.Window; import android.widget.Button; import android.widget.ImageView; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.net.HttpURLConnection; import java.net.URL; public class PreviewActivity extends Activity { /** The captured image file. Get it's path from the starting intent */ private File mImage; public static final String EXTRA_IMAGE_PATH = "extraImagePath" /** Log tag */ private static final String TAG = "DFH"; /** Progress dialog id */ private static final int UPLOAD_PROGRESS_DIALOG = 0; private static final int UPLOAD_ERROR_DIALOG = 1; private static final int UPLOAD_SUCCESS_DIALOG = 2; /** Handler to confirm button */ private Button mConfirm; /** Handler to cancel button */ private Button mCancel; /** Uploading progress dialog */ private ProgressDialog mDialog; /** * Called when the activity is created * * We load the captured image, and register button callbacks */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.preview); setResult(RESULT_CANCELED); // Import image Bundle extras = getIntent().getExtras(); String imagePath = extras.getString(FotoActivity.EXTRA_IMAGE_PATH); Log.d("DFHprev", imagePath); mImage = new File(imagePath); if (mImage.exists()) { setResult(RESULT_OK); loadImage(mImage); } registerButtonCallbacks(); } @Override protected void onPause() { super.onPause(); } /** * Register callbacks for ui buttons */ protected void registerButtonCallbacks() { // Cancel button callback mCancel = (Button) findViewById(R.id.preview_send_cancel); mCancel.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { PreviewActivity.this.finish(); } }); // Confirm button callback mConfirm = (Button) findViewById(R.id.preview_send_confirm); mConfirm.setEnabled(true); mConfirm.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { new UploadImageTask().execute(mImage); } }); } /** * Initialize the dialogs */ @Override protected Dialog onCreateDialog(int id) { switch(id) { case UPLOAD_PROGRESS_DIALOG: mDialog = new ProgressDialog(this); mDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); mDialog.setCancelable(false); mDialog.setTitle(getString(R.string.progress_dialog_title_connecting)); return mDialog; case UPLOAD_ERROR_DIALOG: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(R.string.upload_error_title) .setIcon(android.R.drawable.ic_dialog_alert) .setMessage(R.string.upload_error_message) .setCancelable(false) .setPositiveButton(getString(R.string.retry), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { PreviewActivity.this.finish(); } }); return builder.create(); case UPLOAD_SUCCESS_DIALOG: AlertDialog.Builder success = new AlertDialog.Builder(this); success.setTitle(R.string.upload_success_title) .setIcon(android.R.drawable.ic_dialog_info) .setMessage(R.string.upload_success_message) .setCancelable(false) .setPositiveButton(getString(R.string.success), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { PreviewActivity.this.finish(); } }); return success.create(); default: return null; } } /** * Prepare the progress dialog */ @Override protected void onPrepareDialog(int id, Dialog dialog) { switch(id) { case UPLOAD_PROGRESS_DIALOG: mDialog.setProgress(0); mDialog.setTitle(getString(R.string.progress_dialog_title_connecting)); } } /** * Load the image file into the imageView * * @param image */ protected void loadImage(File image) { Bitmap bm = BitmapFactory.decodeFile(image.getPath()); ImageView view = (ImageView) findViewById(R.id.preview_image); view.setImageBitmap(bm); } /** * Asynchronous task to upload file to server */ class UploadImageTask extends AsyncTask<File, Integer, Boolean> { /** Upload file to this url */ private static final String UPLOAD_URL = "http://www.xxxx.x/xxxx/fotos"; /** Send the file with this form name */ private static final String FIELD_FILE = "file"; /** * Prepare activity before upload */ @Override protected void onPreExecute() { super.onPreExecute(); setProgressBarIndeterminateVisibility(true); mConfirm.setEnabled(false); mCancel.setEnabled(false); showDialog(UPLOAD_PROGRESS_DIALOG); } /** * Clean app state after upload is completed */ @Override protected void onPostExecute(Boolean result) { super.onPostExecute(result); setProgressBarIndeterminateVisibility(false); mConfirm.setEnabled(true); mDialog.dismiss(); if (result) { showDialog(UPLOAD_SUCCESS_DIALOG); } else { showDialog(UPLOAD_ERROR_DIALOG); } } @Override protected Boolean doInBackground(File... image) { return doFileUpload(image[0], "UPLOAD_URL"); } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); if (values[0] == 0) { mDialog.setTitle(getString(R.string.progress_dialog_title_uploading)); } mDialog.setProgress(values[0]); } private boolean doFileUpload(File file, String uploadUrl) { HttpURLConnection connection = null; DataOutputStream outputStream = null; DataInputStream inputStream = null; String pathToOurFile = file.getPath(); String urlServer = "http://www.xxxx.x/xxxx/upload.php"; String lineEnd = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; // log pathtoourfile Log.d("DFHinUpl", pathToOurFile); int bytesRead, bytesAvailable, bufferSize; byte[] buffer; int maxBufferSize = 1*1024*1024; int sentBytes = 0; long fileSize = file.length(); // log filesize String files= String.valueOf(fileSize); String buffers= String.valueOf(maxBufferSize); Log.d("fotosize",files); Log.d("buffers",buffers); try { FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) ); URL url = new URL(urlServer); connection = (HttpURLConnection) url.openConnection(); // Allow Inputs & Outputs connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(false); // Enable POST method connection.setRequestMethod("POST"); connection.setRequestProperty("Connection", "Keep-Alive"); connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary); outputStream = new DataOutputStream( connection.getOutputStream() ); outputStream.writeBytes(twoHyphens + boundary + lineEnd); outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + pathToOurFile +"\"" + lineEnd); outputStream.writeBytes(lineEnd); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; // Read file bytesRead = fileInputStream.read(buffer, 0, bufferSize); while (bytesRead > 0) { outputStream.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); sentBytes += bufferSize; publishProgress((int)(sentBytes * 100 / fileSize)); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); } outputStream.writeBytes(lineEnd); outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); // Responses from the server (code and message) int serverResponseCode = connection.getResponseCode(); String serverResponseMessage = connection.getResponseMessage(); fileInputStream.close(); outputStream.flush(); outputStream.close(); try { int responseCode = connection.getResponseCode(); return responseCode == 200; } catch (IOException ioex) { Log.e("DFHUPLOAD", "Upload file failed: " + ioex.getMessage(), ioex); return false; } catch (Exception e) { Log.e("DFHUPLOAD", "Upload file failed: " + e.getMessage(), e); return false; } } catch (Exception ex) { String msg= ex.getMessage(); Log.d("DFHUPLOAD", msg); } return true; } } } the PHP code that handles this upload is following: <?php $date=getdate(); $urldate=$date['year'].$date['month'].$date['month'].$date['hours'].$date['minutes'].$date[ 'seconds']; $target_path = "./"; $target_path = $target_path . basename( $_FILES['uploadedfile']['name']) . $urldate; if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) { echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded"; } else{ echo "There was an error uploading the file, please try again!"; } ?> would really appreciate it if someone could help me.

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