Android Open Source - Lolpaper Start Lolpaper Activity

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License

The source code is released under:

License THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS PROTECTED BY COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE ...

Java Source Code

// *****************************************************************************
//***************************
/*//from   w w  w  . j  av  a 2s  . com
This is the launcher activity.
It sets up the main UI and fires the intents that start the live wallpaper . 
*/
//***************************
// *****************************************************************************

package hyoma.app.lollivewallpaper;

import hyoma.app.lollivewallpaper.CreateGridView;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.WallpaperManager;
import android.content.ComponentName;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Point;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.widget.Toast;

public class StartLolpaperActivity extends Activity {
  // private variables
  private final int SET_WALLPAPER = 1;
  // ----- Preferences ------------------------------
  public static final String X = "x";
  public static final String Y = "y";
  public static final String TOUCHX = "touchx";
  public static final String TOUCHY = "touchy";
  public static final String totalHeight = "totalheight";
  public static final String totalWidth = "totalwidth";
  
  // Tells the receiver if the 'Clear' button was pressed.
  public static boolean clearButton = false; 
  // Tells the receiver if the 'Change Background' button was pressed.
  public static boolean changeBGButton = false; 
  // ------------------------------------------------

  @SuppressWarnings({ "deprecation", "unused" })
  @SuppressLint("NewApi")
  @Override
  protected void onCreate(Bundle savedInstanceState) {    
    SharedPreferences defPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); 
    SharedPreferences.Editor prefsEditor = defPrefs.edit();
    // ------------------------------------
    // Find the size of the screen here. Allow for both before and after android version 13  by using
    // Deprecated functions. Do not change location in prefs if there is a stored value already. 
    Float currentX = defPrefs.getFloat(X,-1);
    Float currentY = defPrefs.getFloat(Y,-1);
    
    if(currentX == -1 && currentY == -1){
      Point size = new Point();
      WindowManager w = getWindowManager();
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2){
          w.getDefaultDisplay().getSize(size);
          
          float x = size.x;
          float y = size.y;
          prefsEditor.putFloat(X, size.x/2);
          prefsEditor.putFloat(Y, size.y/2);
          prefsEditor.putFloat(totalWidth, size.x);
          prefsEditor.putFloat(totalHeight, size.y);
          prefsEditor.commit();
          
          }else{
            Display d = w.getDefaultDisplay(); 
            
            float x = d.getWidth();
          float y = d.getHeight();
            prefsEditor.putFloat(X, d.getWidth()/2);
          prefsEditor.putFloat(Y, d.getHeight()/2);
          prefsEditor.putFloat(totalWidth, d.getWidth());
          prefsEditor.putFloat(totalHeight, d.getHeight());
          prefsEditor.commit();
          }  
    }
    // ------------------------------------
    
    // Set the main layout, and create the grid view for the animations. 
    setContentView(R.layout.main); 
    CreateGridView gridView = new CreateGridView(this);
    
    super.onCreate(savedInstanceState); 
  }
  
  public void onSetBGClick(View view){
    // Call garbage collector to avoid running out of memory!
    // Constant loading and changing of backgrounds will cause out of memory issues 
    // since it is happening too fast for the garbage collector to handle it.
    // Call the GB manually in order to avoid these types of errors. 
    System.gc();
        
    // Use startActivityForResult() to notify onActivityResult when the intent is complete
    StartLolpaperActivity.changeBGButton = true;
    
    Intent BGintent = new Intent();
    BGintent.setAction(Intent.ACTION_SET_WALLPAPER);
    //startActivityForResult(BGintent,SET_WALLPAPER);
    startActivity(BGintent);
  }
  
  public void onClearClick(View view){
    WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());
    StartLolpaperActivity.clearButton = true;
    // HACK!!--!!--!! THIS MAY NOT WORK ON ALL DEVICES OR VERSIONS
    // Create an empty byte output stream, put it into an input stream, then use that to setStream()
    // For whatever reason, this resets the wallpaper to exactly how it should be, and fast.
    // The proper method of putting the actual image in takes waaaay too long to compress,
    // which is why it is commented out. This may not work as intended, but there might be a way
    // to manually reset the wallpaper the same way setStream() seems to be doing it. Without a hack.
    // Needs further investigation...
    ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
    byte[] bitmapdata = bos.toByteArray();
    ByteArrayInputStream bs = new ByteArrayInputStream(bitmapdata);
    
    try{
      wallpaperManager.setStream(bs);
    } catch(IOException e){
      Toast toast = Toast.makeText(getApplicationContext(), "ERROR: Cannot clear", Toast.LENGTH_LONG);
      toast.show();
    }
  }
  
  // When the onSetBGClick() is complete, call the last animation intent that was currently active. 
  @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // if the activity that just finished was a set wallpaper call...
    if(requestCode == SET_WALLPAPER){
      Intent mordIntent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);
      mordIntent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, new ComponentName(this, LolpaperService.class));
      startActivity(mordIntent);
    }
        super.onActivityResult(requestCode, resultCode, data);
    }

}

Java Source Code List

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