android-ui

in my application , i have a gallery of pictures, but i want to detect the position of the current image displayed , For example : when i launch my acvitivity, the position is 0, but when i scroll in my gallery,i want to get The position of the Current image displayed , i have tried OnFocusChanged , OnItemClicked , but that works only if i click on an item of my gallery Any ideas ! :( gal.setOnItemSelectedListener(new OnItemSelectedListener(){ @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { //Do something with position } }; You get this callback

I have used ActionBarSherlock in my application for providing ActionBars to pre honeycomb devices. I want to use Light.DarkActionBar Theme in, How can I customize following for parts of the ActionBar (see image) Background color of ActionBar Background Image for ActionBar tab bar The bottom line which represents the selected tab The divider between tabs... I have tried using following settings, Though I have achieved some success but the result however doesn't look as expected, <item name="android:background">@drawable/bg_title_bar</item> <item name="background">@drawable/bg_title_bar</item>

I need to download some files (10-20 or depends on user) from service in my app. The problem is I am using IntentSevice and finding it hard to update activity UI. I know following ways to update UI Use handler and send messages from service to activity using Messenger like this . Send broadcast intents. Using first method would cause problem once activity is closed & re-opened and also I am not sure about its performance. Using second would definitely cause perfomance issues since I need to update UI quite frequently (once or twice every two seconds). Is there anyother possible way of

I am trying to show a toast message in my application using the following code. AlertDialog.Builder alert = new AlertDialog.Builder(this); alert.setTitle("Do you want to continue?"); alert.setPositiveButton("Continue", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { try{ //This code generates an Activity Not Found exception } catch(ActivityNotFoundException e) { System.out.println("Activity Not Found Exception Raised"); Toast.makeText(getBaseContext(), "Activity Not Found", Toast.LENGTH_LONG).show(); // For the context I tried using