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  • Getting a variable out of a Public Void (Android)

    - by James Rattray
    I have this code: hubSpinner.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) { final MediaPlayer mp2 = MediaPlayer.create(Textbox.this, R.raw.hero); mp2.start(); } public void onNothingSelected(AdapterView<?> parentView) { } }); (The code basically runs when a new item is selected of a spinner and then plays a song, -which later will be a variable based on what was picked, but i'm fine as it is for now) Problem: And I want to be able to use 'mp2' out of this public void, (I want a button which pauses it) How can I do this? Please explain/show... Thanks alot James

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  • Android: Access child views from a ListView

    - by lacker
    I need to find out the pixel position of one element in a list that's been displayed using a ListView. It seems like I should get one of the TextViews and then use getTop, but I can't figure out how to get a child view of a ListView. Thanks! Update: The children of the ViewGroup do not correspond 1-to-1 with the items in the list, for a ListView. Instead, the ViewGroup's children correspond to only those views that are visible right now. So getChildAt operates on an index that's internal to the ViewGroup and doesn't necessarily have anything to do with the position in the list that the ListView uses. :-/

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  • Android - Adding Subitem to a listview

    - by Oli
    I currently have a listview which contains a couple of strings. These are called from a string array in strings.xml <string name="app_name">Taxi Me</string> <string-array name="taxi_array"> <item>Barrys Taxi</item> <item>Boom Taxi</item> </string-array> What i was trying to do is create subitems for these so that i can show fields such as address and contact details etc. I made a customlistview a while back but cant work out how i can do it using the strings.xml file? Are there any particular tags i need to use so they show up in the list view? Any help would be greatly appreciated. Thanks

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  • Android: scaling a button with a background image.

    - by jkhouw1
    I'm probably just being daft but my Google searches are not working out well. I have a bunch of buttons i add in code that all have dynamic text. I've set a background image for each of these buttons since the default greybutton doesn't work well for my application. This works perfectly and when the text size (or content) changes, the button automatically grows to accommodate the expanded text. What doesn't work is that I'd like the button to scale proportionally - i.e. if the background image is round, i'd like it to stay round rather than oval as the button gets bigger. With an imagebutton, there is a property "Adjust view bounds" that does exactly this but I cant put text on an imagebutton. Is there something equivalent for a regular button? or am I going about this wrong? i also tried setting the width of the button in code, but I can't seem to determine the new height (button.getHeight() returns 0)

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  • android button setPressed after onClick

    - by strem
    yesterday I noticed the possibility to integrate Fragments in older API Levels through the Compatibility package, but thats not really essential for the question. :) I have a Button with an OnClickListener Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { doSomething(); button.setPressed(true); } }); Because of the actual clicking, it is shown as pressed and after releasing the click, the button state is not pressed and stays that way. Is there a simple way that keeps the button state pressed after releasing? First thing I can think of would be some sort of timer, but that seems unreasonable.

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  • Android: stack management for views in a tab?

    - by wei
    I see some answers here prefer views over activities as contents of tabs. Correct me if I am wrong. My understanding is that by switching out views, it's possible to keep the navigation flow inside a tab (more user friendly, I think). But I wonder how to manage the view stack then in case of the back button events. Also this could cause one giant Activity with large amount of views, which might not be good. So I wish to know why exactly views as contents is preferred before I change my current application to this. Thanks,

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  • problem while switching between Portrait and landscape in android views

    - by vnshetty
    In my application im going to display a web page in web view , it works fine but if i flip between landscape to portrait or vice versa, then it exits and comes to main page. wht is the prblm? logcat: 03-10 13:35:47.123: INFO/WindowManager(69): Setting rotation to 1, animFlags=1 03-10 13:35:47.242: INFO/ActivityManager(69): Config changed: { scale=1.0 imsi=310/260 loc=en_US touch=3 keys=2/1/1 nav=3/1 orien=2 layout=17 uiMode=17 seq=70} 03-10 13:35:47.363: INFO/UsageStats(69): Unexpected resume of com.mireader while already resumed in com.mireader 03-10 13:35:50.413: DEBUG/dalvikvm(69): GC_EXPLICIT freed 395 objects / 20424 bytes in 195ms

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  • Android and Layouts

    - by davs
    Hi all, I need your help! I need to locate text on view as showed on the picture: text 'Some more text' should be located in bottom|center_horizontal text 'Short text' should be located on with align right, but about 10% from the top of the screen text 'x.x.x.x' should be aligned to the center of the screen (right/bottom align of the 1st quater) text 'Some long text ..' should be aligned to the top/left of the 3-rd quater of the screen, but it should cross the center_horizontal of the screen eh ... something like this .. I hope, you're understand me :) Please, help me!!! Thanks for your help!

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  • Android. Playing multiple sounds using SoundManager

    - by Jerry
    Shown are a few lines of code. If I play a single sound, it runs fine. Adding a second sound causes it to crash. Any advice is appreciated. private SoundManager mSoundManager; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sos); mSoundManager = new SoundManager(); mSoundManager.initSounds(getBaseContext()); mSoundManager.addSound(1,R.raw.dit); mSoundManager.addSound(1,R.raw.dah); Button SoundButton = (Button)findViewById(R.id.SoundButton); SoundButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mSoundManager.playSound(1); mSoundManager.playSound(2); } }); }

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  • I want to retrieve check items of list view

    - by kamil
    for(int i=0;i < users.size();i++) { map = new HashMap<String, String>(); map.put("id",String.valueOf(i)); map.put("userID", String.valueOf(users.get(i).getUserId())); map.put("emailID", users.get(i).getEmailAddress()); memList.add(map); } ListAdapter adapter = new SimpleAdapter(this, memList , R.layout.member_list_view, new String[] { "emailID" },new int[] { R.id.memTextView}); memberList.setAdapter(adapter); I have to retrieve the checked items on a separate button listener. how can I? I am using a customize list view. Plz help...

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  • [Android] Thread Button sleep

    - by user557475
    Hello For my project,i´am trying to execute a Method every 10 seconds when i click a button "A" and it should stop when i click the button again (kind of on/off). this is what i reached :-/ : ButtonA.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Handler handler = new Handler(); handler.postDelayed(new Runnable() { public void run() { showCurrentLocation(); Methodexecute(); } }, 10000); } } }); how can i repeat executing this method every 10 seconds until the button is clicked again. thanks

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  • Changing background color in Android SDK by clicking a button does not work

    - by DavidNg
    I have a simple program which is able to change the background color after clicking a button, but it does not work public class ChangeBackgroundActivity extends Activity { /** Called when the activity is first created. */ Button blueButton; LinearLayout myLO; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); myLO=(LinearLayout)findViewById(R.layout.main); blueButton=(Button)findViewById(R.id.button1); blueButton.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { // TODO Auto-generated method stub myLO.setBackgroundColor(0x0000FF); //blue color code #0000FF } }); } }

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  • Iterating ListView items in Android

    - by pocoa
    I want to iterate a list of items into a ListView. This code below is not enough to iterate all the items into the list because of the weird behaviour of getChildCount() function which only returns the visible item count. for (int i = 0; i < list.getChildCount(); i++) { item = (View)list.getChildAt(i); product = (Product)item.getTag(); // make some visual changes if product.id == someProductId } My screen displays 7 results and when there are more than 7 items into the list, it's not possible to access to the 8th item or so.. Only visible items.. Should I use ListIterator instead? Thanks.

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  • Override onDraw to change how the drawing occurs (Android)

    - by Casebash
    I want to change how my UI elements display, so I am overriding onDraw. The following code allows me to change a View to be drawn using PorterDuff.Mode.DARKEN. Unfortunately, this method involves creating a bitmap the size of the entire screen, then drawing to it then drawing this large bitmap the main screen again, for each UI element. This isn't at all efficient. Is it possible to achieve this in a more effecient way? @Override protected void onDraw(Canvas canvas) { //TODO: Reduce the burden from multiple drawing Bitmap bitmap=Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Config.ARGB_8888); Log.e("tmp",canvas.getClipBounds().toString()); Canvas offscreen=new Canvas(bitmap); super.onDraw(offscreen); //Then draw onscreen Paint p=new Paint(); p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DARKEN)); canvas.drawBitmap(bitmap, 0, 0, p); }

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  • dynamically add imagebutton programatically android

    - by user1266179
    I am getting dynamic length of the string array and i want to display images in the imagebutton and that too in horizontal view as i had added button but it shows in the vertical layout.Please help. This is my code: for (int i =0;i<adapt_objmenu.image_array.length;i++){ ImageButton b1 = new ImageButton(myrefmenu); b1.setId(100 + i); // b1.setText(adapt_objmenu.city_name_array[i]); RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); if (i > 0) { lp.addRule(RelativeLayout.BELOW, b1.getId() - 1); } b1.setLayoutParams(lp); relative.addView(b1); //relate.addView(b1, i, new RelativeLayout.LayoutParams(width,height)); //height = height+80; }

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  • How does android communicate with dynamic services?

    - by ezekielweb
    I am trying to develop an app and I want it to bring in data from a mySQL database. But from some reading I have done on different sites, I am realizing that it is probably not going to happen. But I am curious to know, how do apps like PhoneFlix and others view that dynamic data on the application? Does it somehow just bring it in through http? If so, how would I go about doing that? Does anyone know of any good sites that will point me in the right direction? Thanks ezekielweb

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  • Android change Tab image (not backgound)

    - by user1143989
    I am using a TabHost which has 3 tabs. Each tab has a image + text. spec = tabHost.newTabSpec("MyTasks") .setIndicator(Html.fromHtml("<b><H2>My Tasks</H2></b>"), getResources().getDrawable(R.drawable.task )) .setContent(intent); tabHost.addTab(spec); I want to change image when I select a tab. I used following code to change it ... TabWidget tw = getTabWidget(); View leftTabView = tw.getChildAt(0); leftTabView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab1_drawable)); tab1_drawable is a xml (selector and items for each state). THIS IS SETTING AND CHANGING BACKGROUND NOT THE IMAGE I SET. How can I change it?

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  • Setting values and display Text in Android Spinner

    - by kaibuki
    Hi, I need help in setting up value and display text in spinner. as per now I am populating my spinner by array adapter e.g mySpinner.setAdapter(myAdapter); and as far as I know after doing this the display text and the value of spinner at same position is same. The other attribute that I can get from spinner is the position on the item. now in my case I want to make spinner like the drop down box, which we have in .NET. which holds a text and value. where as text is displayed and value is at back end. so if I change drop down box , I can either use its selected text or value. but its not happening in android spinner case. For Example: Text Value Cat 10 Mountain 5 Stone 9 Fish 14 River 13 Loin 17 so from above array I am only displaying non-living objects text, and what i want is that when user select them I get there value i.e. like when Mountain selected i get 5 I hope this example made my question a bit more clear... thankx

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  • Android ListView item highlight programmatically

    - by dhomes
    Hi all, I know it's been asked around but I haven't found quite the answer yet (new to Android so sorry about the ignorance) my app's launch Activity has an EditText (called searchbox) , a ListView (designations) and a Spinner (types) I use the EditText as a searchbox, I have to pass the string through a custom editing to make searching more flexible. After that I match that against the closest approximation I find in 'designations' and do designations.setSelection(j); As expected, this sets the desired item to the top of designations. But I can find a way to highlight it via code. NOW, i do know that if the device is in touch mode the highlighting of a selected item won't occur. So the last 4 lines of my searchbox's onTextChanged event are: designations.setFocusable(true); designations.setFocusableInTouchMode(true); if (match==true) designations.setSelection(j); if (st.length()==0) designations.setSelection(0); to no avail. now, i don't have any code on searchbox's afterTextChanged(Editable s); so could anyone give me a clue on this? regards ~dh

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  • Android- Using DexClassLoader to load apk file.

    - by Craig O Connor
    Hi guys, I've hit a bit of a wall. Any help would be appreciated. I have an app that I want to use DexClassLoader to load another apk file. Here is my code: DexClassLoader dLoader = new DexClassLoader("/sdcard/download/test.apk","/sdcard/download",null,ClassLoader.getSystemClassLoader().getParent()); Class calledClass = dLoader.loadClass("com.test.classname"); Intent it=new Intent(this, calledClass); it.setClassName("com.test", "com.test.classname"); startActivity(it); Now I had already installed test.apk so when I ran the above code it worked fine and launched the application. However I want to be able to run this without test.apk being installed already (as that would defeat the entire point of the application) . So I uninstalled it and when I ran the my app again I get this error: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.test/com.test.classname}; have you declared this activity in your AndroidManifest.xml. So I'm a bit stumped here. This activity is declared in the Manifest of the apk I am trying to run. I can't declare it in my applications Manifest. Any ideas? Thanks, Craig

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  • OutofMemoryError: bitmap size exceeds VM budget (Android)

    - by Chrispix
    Getting an Exception in the BitmapFactory. Not sure what is the issue. (Well I can guess the issue, but not sure why its happening) ERROR/AndroidRuntime(7906): java.lang.OutOfMemoryError: bitmap size exceeds VM budget ERROR/AndroidRuntime(7906): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:295) My code is pretty straight forward. I defined an XML layout w/ a default image. I try to load a bm on the SDCard (if present - it is). If not it shows the default image. Anyway.. Here is code : public class showpicture extends Activity { public void onCreate(Bundle savedInstanceState) { /** Remove menu/status bar **/ requestWindowFeature(Window.FEATURE_NO_TITLE); final Window win = getWindow(); win.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN); Bitmap bm; super.onCreate(savedInstanceState); setContentView(R.layout.showpicture); try { ImageView mImageButton = (ImageView)findViewById(R.id.displayPicture); bm = Bitmap.createScaledBitmap(BitmapFactory.decodeFile("/sdcard/dcim/Camera/20091018203339743.jpg"),100, 100, true); parkImageButton.setImageBitmap(bm); } catch (IllegalArgumentException ex) { Log.d("MYAPP",ex.getMessage()); } catch (IllegalStateException ex) { It fails on the bm=Bitmap.createScaledBitmap any thoughts? I did some research on the forums, and it pointed to this post I just don't know why it is not working. Any help would be great! Thanks, Chris.

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  • Android ASync task ProgressDialog isn't showing until background thread finishes

    - by jackbot
    I've got an Android activity which grabs an RSS feed from a URL, and uses the SAX parser to stick each item from the XML into an array. This all works fine but, as expected, takes a bit of time, so I want to use AsyncActivity to do it in the background. My code is as follows: class AddTask extends AsyncTask<Void, Item, Void> { protected void onPreExecute() { pDialog = ProgressDialog.show(MyActivity.this,"Please wait...", "Retrieving data ...", true); } protected Void doInBackground(Void... unused) { items = parser.getItems(); for (Item it : items) { publishProgress(it); } return(null); } protected void onProgressUpdate(Item... item) { adapter.add(item[0]); } protected void onPostExecute(Void unused) { pDialog.dismiss(); } } Which I call in onCreate() with new AddTask().execute(); The line items = parser.getItems() works fine - items being the arraylist containing each item from the XML. The problem I'm facing is that on starting the activity, the ProgressDialog which i create in onPreExecute() isn't displayed until after the doInBackground() method has finished. i.e. I get a black screen, a long pause, then a completely populated list with the items in. Why is this happening? Why isn't the UI drawing, the ProgressDialog showing, the parser getting the items and incrementally adding them to the list, then the ProgressDialog dismissing?

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  • Android - Using PreferenceScreen to display and save settings to/from ContentProvider

    - by Donal Rafferty
    I have my own custom Content Provider that loads a datasbase which contains the settings information for my application. I load the settings from the ContentProvider on the creation of my Settings activity. My Settings activity is made up of a PreferenceScreen and Dialog based EditText's. The following code shows how I use the preference screen and edit texts. So as you can see from the first image this works and displays the menu with the information underneath. The problem is in image two, when I click on a choice in the menu the dialog pops up but it is empty, I would like to be able to load the data from my content provider into the edit text in the dialog, so in image one it shows "Donal" as the user name so in image two "Donal" should also appear in the edit text in the dialog. I would also like to be able to listen to the OK button in the dialog so when a user changes a setting I can update the data in my content provider. Can anyone help me with what I'm trying to do? Code // Root PreferenceScreen root = getPreferenceManager().createPreferenceScreen(this); // Dialog based preferences PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this); dialogBasedPrefCat.setTitle(R.string.dialog_based_preferences); root.addPreference(dialogBasedPrefCat); // Edit text preference EditTextPreference editTextPref = new EditTextPreference(this); editTextPref.setDialogTitle(R.string.dialog_title_edittext_preference); editTextPref.setKey("edittext_preference"); editTextPref.setTitle(R.string.title_edittext_preference); editTextPref.setSummary(name); dialogBasedPrefCat.addPreference(editTextPref); Image One Image Two

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  • Android, sending XML via HTTP POST (SOAP)

    - by Intosia
    Hi, I would like to invoke a webservice via Android. I need to POST some XML to a URL via HTTP. I found this snipped for sending a POST, but i dont know how to include/add the XML data itself. public void postData() { // Create a new HttpClient and Post Header HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://10.10.4.35:53011/"); try { // Add your data List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); nameValuePairs.add(new BasicNameValuePair("Content-Type", "application/soap+xml")); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // Where/how to add the XML data? // Execute HTTP Post Request HttpResponse response = httpclient.execute(httppost); } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } } This is the complete POST message that i need to imitate: POST /a8103e90-f1e3-11dd-bfdb-8b1fcff1a110 HTTP/1.1 Host: 10.10.4.35:53011 Content-Type: application/soap+xml Content-Length: 602 <?xml version='1.0' encoding='UTF-8' ?> <s12:Envelope xmlns:s12="http://www.w3.org/2003/05/soap-envelope" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"> <s12:Header> <wsa:MessageID>urn:uuid:fc061d40-3d63-11df-bfba-62764ccc0e48</wsa:MessageID> <wsa:Action>http://schemas.xmlsoap.org/ws/2004/09/transfer/Get</wsa:Action> <wsa:To>urn:uuid:a8103e90-f1e3-11dd-bfdb-8b1fcff1a110</wsa:To> <wsa:ReplyTo> <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address> </wsa:ReplyTo> </s12:Header> <s12:Body /> </s12:Envelope>

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  • Streaming to the Android MediaPlayer

    - by Rob Szumlakowski
    Hi. I'm trying to write a light-weight HTTP server in my app to feed dynamically generated MP3 data to the built-in Android MediaPlayer. I am not permitted to store my content on the SD card. My input data is essentially of an infinite length. I tell MediaPlayer that its data source should basically be something like "http://localhost/myfile.mp3". I've a simple server set up that waits for MediaPlayer to make this request. However, MediaPlayer isn't very cooperative. At first, it makes an HTTP GET and tries to grab the whole file. It times out if we try and simply dump data into the socket so we tried using the HTTP Range header to write data in chunks. MediaPlayer doesn't like this and doesn't keep requesting the subsequent chunks. Has anyone had any success streaming data directly into MediaPlayer? Do I need to implement an RTSP or Shoutcast server instead? Am I simply missing a critical HTTP header? What strategy should I use here? Rob Szumlakowski

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