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  • Action Item shown only in Landscape?

    - by roboguy12
    I was just wondering if it were at all possible for an Action Bar icon to only be shown when the device is in landscape mode? In portrait I have an onscreen button for a certain task, but in order to take advantage of all of the screen-space in landscape, that button won't fit. So I was wondering if I could put it in the Action Bar, but it would only be necessary when the device is in landscape. Thanks!

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  • Deleting items from a ListView using a custom BaseAdapter

    - by HXCaine
    I am using a customised BaseAdapter to display items on a ListView. The items are just strings held in an ArrayList. The list items have a delete button on them (big red X), and I'd like to remove the item from the ArrayList, and notify the ListView to update itself. However, every implementation I've tried gets mysterious position numbers given to it, so for example clicking item 2's delete button will delete item 5's. It seems to be almost entirely random. One thing to note is that elements may be repeated, but must be kept in the same order. For example, I can have "Irish" twice, as elements 3 and 7. My code is below: private static class ViewHolder { TextView lang; int position; } public View getView(final int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = mInflater.inflate(R.layout.language_link_row, null); holder = new ViewHolder(); holder.lang = (TextView)convertView.findViewById(R.id.language_link_text); holder.position = position; final ImageView deleteButton = (ImageView) convertView.findViewById(R.id.language_link_cross_delete); deleteButton.setOnClickListener(this); convertView.setTag(holder); deleteButton.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.lang.setText(mLanguages.get(position)); return convertView; } I later attempt to retrieve the deleted element's position by grabbing the tag, but it's always the wrong position in the list. There is no noticeable pattern to the position given here, it always seems random. // The delete button's listener public void onClick(View v) { ViewHolder deleteHolder = (ViewHolder) v.getTag(); int pos = deleteHolder.position; ... ... ... } I would be quite happy to just delete the item from the ArrayList and have the ListView update itself, but the position I'm getting is incorrect so I can't do that. Please note that I did, at first, have the deleteButton clickListener inside the getView method, and used 'position' to delete the value, but I had the same problem. Any suggestions appreciated, this is really irritating me.

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  • Creating a ListView and setting the background color of a view in each row.

    - by Tarmon
    Hey Everyone, I am trying to implement a ListView that is composed of rows that contain a View on the left followed by a TextView to the right of that. I want to be able to change the background color of the first View based on it's position in the ListView. Below is what I have at this point but it doesn't seem to due anything. public class Routes extends ListActivity { String[] ROUTES; TextView selection; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ROUTES = getResources().getStringArray(R.array.routes); setContentView(R.layout.routes); setListAdapter(new IconicAdapter()); selection=(TextView)findViewById(R.id.selection); } public void onListItemClick(ListView parent, View v, int position, long id) { selection.setText(ROUTES[position]); } class IconicAdapter extends ArrayAdapter<String> { IconicAdapter() { super(Routes.this, R.layout.row, R.id.label, ROUTES); } } public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = getLayoutInflater(); View row = inflater.inflate(R.layout.row, parent, false); TextView label = (TextView) row.findViewById(R.id.label); label.setText(ROUTES[position]); View icon = (View) row.findViewById(R.id.icon); switch(position){ case 0: icon.setBackgroundColor(R.color.Red); break; case 1: icon.setBackgroundColor(R.color.Red); break; case 2: icon.setBackgroundColor(R.color.Green); break; case 3: icon.setBackgroundColor(R.color.Green); break; case 4: icon.setBackgroundColor(R.color.Blue); break; case 5: icon.setBackgroundColor(R.color.Blue); break; } return(row); } } Any input is appreciated and if you have any questions don't hesitate to ask! Thanks, Rob

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  • END_TAG exception while calling WCF WebService from Android using KSOAP2?

    - by sunil
    Hi, I am trying to call a WCF Web Service from Android using KSOAP2 library. But I am getting this END_TAG exception. I have followed this thread to call WCF Web Service but still no result. I am passing "urn:TestingWcf/GetNames" as SOAP_ACTION, does this causes problem in Android since the error occurs at the statement "aht.call(SOAP_ACTION, envelope)" where aht is AndroidHttpTransport class object. Can someone let me know what the problem may be? import org.ksoap2.*; import org.ksoap2.serialization.*; import org.ksoap2.transport.*; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class Ksoap2Test extends Activity { private static final String METHOD_NAME = "GetNamesJsonWithParam" private static final String NAMESPACE = "http://tempuri.org/"; private static final String URL = "http://192.168.3.61/BattleEmpire.Service/TestingWcf.svc/basic"; final String SOAP_ACTION = "urn:TestingWcf/GetNamesJsonWithParam"; TextView tv; StringBuilder sb; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); tv = new TextView(this); sb = new StringBuilder(); call(); tv.setText(sb.toString()); setContentView(tv); } public void call() { try { SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); request.addProperty("imran", "Qing"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet = true; envelope.setOutputSoapObject(request); System.out.println("Request " + envelope.toString()); //HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); AndroidHttpTransport aht = new AndroidHttpTransport(URL); aht.call(SOAP_ACTION, envelope); //aht.debug = true; /*HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); androidHttpTransport.call(SOAP_ACTION, envelope);*/ SoapPrimitive result = (SoapPrimitive)envelope.getResponse(); //to get the data String resultData = result.toString(); // 0 is the first object of data sb.append(resultData + "\n"); SoapObject resultsRequestSOAP = (SoapObject) envelope.bodyIn; System.out.println(resultsRequestSOAP.toString()); } catch (Exception e) { e.printStackTrace(); sb.append("Error:\n" + e.getMessage() + "\n"); } } } `

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  • Change Toast Font

    - by mgpyone
    Currently, I'm trying to develop an app. and I don't know how to change the Toast font. . final OnClickListener clickListener = new OnClickListener() { public void onClick(View v) { try { Toast.makeText(nova.this,"Hello", 500000).show(); } catch (Exception e) { Toast.makeText(nova.this,"Exception:" +e, 500000); } } }; I want to change the text "Hello" with custom font I've tried with TypeFace. and Then, I want to set a variable at the place "TextClicked" .. I've tried with a local variable .. but it doesn't work any help with example source code will be really great for me.

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  • Effect of frequent sdcard writes

    - by Al
    In my chat app, I am adding the ability to log chats. The logs are saved on the sdcard and one BufferedWriter is kept open for every person/channel chat is done with. I'm wondering what effects this might have have on the sdcard and its life. My BufferedWriter's buffer size is to 1024, I'm also wondering if that is too small or too big.

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  • Further explanation of IntentService

    - by rayman
    Hi all, I was trying to get the purpose of the IntentService, and when should I use it? I tried to understand from the API, but not enough details on that one. Is there any analogy between this and running long-task on a working thread? Any further explanation and samples on why I would use IntentService would be very welcome. Thanks, ray.

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  • sqlite select query round of double value

    - by Scorpion
    I have stored location in my sqlite database. CREATE TABLE city ( latitude NUMERIC, longitude NUMERIC ) Below are the value :- latitude = 41.0776605;//actual value in db - NUMERIC stored as DB longitude = -74.170086;//actual value in db - NUMERIC stored as DB final String query = "SELECT * FROM city"; cursor = myDataBase.rawQuery(query, null); if (null != cursor) { while (cursor.moveToNext()) { Log.i(TAG, "Latitude == " + cursor.getDouble(cursor.getColumnIndex("latitude"))); Log.i(TAG, "Longitude == " + cursor.getDouble(cursor.getColumnIndex("longitude"))); } } Result :- Latitude = 40.4127 Longitude = -74.25252 I don't want round off this values. Is there any way to solve this problem.

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  • Why is PackageInfo.requestedPermissions always null?

    - by Luke
    I'm trying to enumerate all the permissions used by all the installed packages, however when I check the requestedPermissions property for each of my installed packages it is always null. The following is the code that does this: private HashMap<String, List<String>> buildMasterList() { HashMap<String, List<String>> result = new HashMap<String, List<String>>(); List<PackageInfo> packages = getPackageManager().getInstalledPackages(PackageManager.GET_PERMISSIONS); for (int i = 0; i < packages.size(); i++) { String[] packagePermissions = packages.get(i).requestedPermissions; Log.d("AppList", packages.get(i).packageName); if (packagePermissions != null) { for (int j = 0; j < packagePermissions.length; j++) { if (!result.containsKey(packagePermissions[j])) { result.put(packagePermissions[j], new ArrayList<String>()); } result.get(packagePermissions[j]).add(packages.get(i).packageName); } } else { Log.d("AppList", packages.get(i).packageName + ": no permissions"); } } return result; } Edit: Oops! I just needed to pass the PackageManager.GET_PERMISSIONS flag to getInstalledPackages(). Updated the code snippet.

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  • Height of screen in portrait mode only?

    - by user246114
    Hi, How can I get the height of the device for portrait mode? I have to create a bitmap (which is zoomable) and I just want to get a rough idea what the tallest height should be. getResources().getDisplayMetrics().heightPixels; does the above return the height, in portrait mode only? I'm not binding my UI to this absolute value, it's just a rough fit, Thanks

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  • Infinite service

    - by rayman
    Hello, I have some proccess that i would like to run in the background the whole time. so i made it "service". my question is: is there anyway to prevent from the user to kill this service? (even if he uses third party app) thanks, ray.

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  • Button style in AlertDialogs

    - by Steve H
    Does anyone know how to override the default style for AlertDialog buttons? I've looked through the Android source for themes and styles and experimented with different things but I haven't been able to find a way that works. What I've got below works for changing the backgrounds, but doesn't do anything with the buttons. myTheme is applied to the whole <application> via the manifest. (Some other items were deleted for clarity, but they only relate to the title bar.) <style name="myTheme" parent="android:Theme"> <item name="android:buttonStyle">@style/customButtonStyle</item> <item name="android:alertDialogStyle">@style/dialogAlertTheme</item> </style> <style name="dialogAlertTheme" parent="@android:style/Theme.Dialog.Alert"> <item name="android:fullDark">@drawable/dialog_loading_background</item> <item name="android:topDark">@drawable/dialog_alert_top</item> <item name="android:centerDark">@drawable/dialog_alert_center</item> <item name="android:bottomDark">@drawable/dialog_alert_bottom</item> <!-- this last line makes no difference to the buttons --> <item name="android:buttonStyle">@style/customButtonStyle</item> </style> Any ideas?

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  • findViewById returns null in new Intent

    - by drozzy
    I am having a problem where in the started Intent, the findViewById returns null. Is there anything special I should know about starting a new intent? It goes something like this for me: //in the MainList class Intent stuffList = new Intent(this, StuffList.class); then in the new Stuff's constructor: public class StuffList extends ListActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.stuff_list); ... this.setListAdapter(new StuffAdapter(this, my_cursor)); and in the StuffAdapter I do my usual view and data retrieval. Note the line where findViewById returns null: class ViewWrapper{ View base; TextView label = null; ViewWrapper(View base){ this.base = base; } TextView getLabel(){ if(label == null){ label = (TextView)base.findViewById(R.id.my_label); // returns NULL } return label;} } class StuffAdapter extends CursorAdapter{ StuffAdapter(Context context, Cursor cursor){ super(context, cursor); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { LayoutInflater inflater = getLayoutInflater(); View row = inflater.inflate(R.layout.stuff_list, parent, false); ViewWrapper wrapper = new ViewWrapper(row); row.setTag(wrapper); return(row); } @Override public void bindView(View row, Context context, Cursor cursor) { ViewWrapper wrapper = (ViewWrapper)row.getTag(); TextView label = wrapper.getLabel(); // also NULL //this throws exception of course label.setText(cursor.getString("title")); } } The curious thing is that in the class that calls intent (MainList class), I do Exactly the same thing (i list a bunch of objects), and it Works! however when I try to do it in an Intent - it can't seem to find the view by id.

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  • Efficiency questions

    - by rayman
    Hi, I have to manage XML documents and Strings in my app. In terms of efficiency and memory usage, will a collection like ArrayList be much more expensive than String[]? Also, I could store the content as a regular String or XML. Is working with XML also more expensive? (When I say expensive, I am referring to the use of system resources.) If there are differences, are they significant? Thanks, Ray.

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  • use startActivityForResult from non-activity

    - by rayman
    Hi, I have MainActivity which is an Activity and other class(which is a simple java class), we`ll call it "SimpleClass". now i want to run from that class the command startActivityForResult. now i though that i could pass that class(SimpleClass), only MainActivity's context, problem is that, u cant run context.startActivityForResult(...); so the only way making SimpleClass to use 'startActivityForResult; is to pass the reference of MainActivity as an Activity variable to the SimpleClass something like that: inside the MainActivity class i create the instance of SimpleClass this way: SimpleClass simpleClass=new SimpleClass(MainActivity.this); now this is how SimpleClass looks like: public Class SimpleClass { Activity myMainActivity; public SimpleClass(Activity mainActivity) { super(); this.myMainActivity=mainActivity; } .... } public void someMethod(...) { myMainActivity.startActivityForResult(...); } now its working, but isnt a proper way of doing this? I`am afraid i could have some memory leaks in the future. thanks. ray.

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  • Validation for Alert dialog

    - by Hossam
    Hi Everyone, Im working in a game and when the player finished the level , Im asking the Player to enter his name on EditText in Alert Dialog : AlertDialog.Builder builder = new Builder(this); LayoutInflater inflater = getLayoutInflater(); // Inflate and set the layout for the dialog // Pass null as the parent view because its going in the dialog layout builder.setView(inflater.inflate(R.layout.dialog_name, null)) // Add action buttons .setPositiveButton(R.string.alertName, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { playerText = (EditText) ((AlertDialog)dialog).findViewById(R.id.username); if(playerText.getText() != null && playerText.getText().length() != 0) Helper.currentPlayer.setName(playerText.getText().toString()); //calculate the score // save in data base PlayerDataSource playerDS = new PlayerDataSource(getApplicationContext()); playerDS.open(); Helper.currentPlayer = playerDS.createPlayer(Helper.currentPlayer.getName(), Helper.currentPlayer.getScore(), Helper.currentPlayer.levels, Helper.currentPlayer.times, LanguageHelper.div); playerDS.close(); saveStmc(); mainScene.setChildScene(choicesMenu, false, true, true); } }) .setTitle("Please Enter Your name") .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { } }); alert = builder.create(); When the Player enters his name and press OK (Positive button) I will check in database if the name exists or not, if the name is exist : show Toast and not dismiss the alert to write another name. How to do that?

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  • Intent.getInt() doesn't work on ICS, but works on JB

    - by ObAt
    I use this code to send parameters when I start a new Activity: Intent inputForm = new Intent(getActivity(), InputForm.class); Bundle b = new Bundle(); b.putInt("item", Integer.parseInt(mItem.id)); //Your id inputForm.putExtras(b); //Put your id to your next Intent startActivity(inputForm); And I use this code for reading the parameters in the inputForm Activity: Bundle b = getIntent().getExtras(); if (b != null) { int value = b.getInt("item"); ID = value; } Toast.makeText(getApplication(), "MIJN ID:" + Integer.toString(ID), Toast.LENGTH_LONG).show(); When I run this code on my Samsung Tab 10.1 GT-P7510 ID is alsways 0, when I run the same code on my Galaxy S3 with JB the code just works fine. Can someone help me? Thanks in advance, ObAt

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  • Change Default Contact Application in Eclipse

    - by Saurabh
    Hi I am running eclipse on windows XP. I am trying to make changes in Default Contact Application and make it a separate apk file. But due to dependancies on other libraries it's showing me compile errors. How can this be resolved? So that I can make a new contact application using current code base. Thanks, Saurabh

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  • Set focus on a runing Activity

    - by Raymond
    Hi all, I have an Activity that keeps running after the HOME button is pressed (naturally) and of-course the focus is in the home screen, and when the running process ends i need to restore the focus on that activity... in more PC expression, i need to maximize the application ;) Any help is good. thx in advance.

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