Android Open Source - android-static-live-wallpaper Service

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From Project

Back to project page android-static-live-wallpaper.

License

The source code is released under:

GNU General Public License

Java Source Code

package info.kghost.android.static_live_wallpaper;
//  w  ww  .j  a  va2  s . c om
import java.io.FileNotFoundException;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.RectF;
import android.service.wallpaper.WallpaperService;
import android.util.Log;
import android.view.SurfaceHolder;

public class Service extends WallpaperService {
  static final String SHARED_PREFS_NAME = "settings";

  @Override
  public void onCreate() {
    super.onCreate();
  }

  @Override
  public void onDestroy() {
    super.onDestroy();
  }

  @Override
  public Engine onCreateEngine() {
    return new WallEngine();
  }

  class WallEngine extends Engine {
    private BroadcastReceiver receiver;
    private final SurfaceHolder.Callback callback = new SurfaceHolder.Callback() {
      public void surfaceCreated(SurfaceHolder holder) {
        draw();
      }

      public void surfaceChanged(SurfaceHolder holder, int format,
          int width, int height) {
        draw();
      }

      public void surfaceDestroyed(SurfaceHolder holder) {
      }
    };

    @Override
    public void onCreate(SurfaceHolder holder) {
      super.onCreate(holder);
      // setTouchEventsEnabled(true);
      draw();
      holder.addCallback(callback);

      IntentFilter filter = new IntentFilter(
          "info.kghost.android.static_live_wallpaper.REFRESH");
      receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
          draw();
        }
      };
      registerReceiver(receiver, filter);
    }

    @Override
    public void onDestroy() {
      unregisterReceiver(receiver);
      this.getSurfaceHolder().removeCallback(callback);
      super.onDestroy();
    }

    @Override
    public void onVisibilityChanged(boolean visible) {
      if (visible) {
        draw();
      }
    }

    private void draw() {
      if (!isVisible())
        return;
      Canvas c = null;
      try {
        c = getSurfaceHolder().lockCanvas();
        if (c != null) {
          int portrait = c.getHeight() > c.getWidth() ? Settings.PORTRAIT
              : Settings.LANDSCAPE;
          Bitmap bm = BitmapFactory
              .decodeStream(openFileInput(Settings.FILE_USE[portrait]));
          if (bm != null) {
            Matrix matrix = new Matrix();
            matrix.setRectToRect(
                new RectF(0, 0, bm.getWidth(), bm.getHeight()),
                new RectF(0, 0, c.getWidth(), c.getHeight()),
                Matrix.ScaleToFit.CENTER);
            c.drawBitmap(bm, matrix, null);
          }
        }
      } catch (FileNotFoundException e) {
        Log.e("StaticLiveWallpaperEngine", "Error load bitmap");
      } finally {
        if (c != null)
          getSurfaceHolder().unlockCanvasAndPost(c);
      }
    }
  }
}

Java Source Code List

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