Tile set animation in android

Question

[EDITED] Changes in code.

There is a tile set with 24 frame. how can i make animation from them getting one after another dynamicly? I tried this, but no effect at all:

ImageView image = (ImageView)findViewById(R.id.imageView);
Bitmap TileSet = BitmapFactory.decodeResource(getResources(), R.drawable.Image);
Bitmap frame = Bitmap.createBitmap(256, 128, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(frame);

for (int i = 10, width, height; i < 24; i++) {
  width = i/4;
  height = i%4;
  try {
    Thread.sleep(125);
  } catch (InterruptedException e) {
    e.printStackTrace();
  }
  canvas.drawBitmap(TileSet
                    , new Rect(256 * width, 128 * height
                                , 256 * (width+1), 128 * (height+1))
                    , new Rect(0, 0, image.getWidth(), image.getHeight())
                    , null);
  image.setImageBitmap(frame);
}

The idea is to draw this animation 1 time and close this activity forever. Thats why i cant understand how to use onDraw function here.

[EDITED 2]

private void startAnimating() {
Bitmap frame;
long beginLoopTime = 0;
for (int i = 0, width, height; i < 32; i++) {
  width = i/8;
  height = i%8;

  while(System.currentTimeMillis() - beginLoopTime < DURATION) {}

  frame = Bitmap.createBitmap(TileSet, 256 * width, 128 * height, 256, 128);

  final BitmapDrawable temp = new BitmapDrawable(getResources(), frame);

  image.post(new Runnable() {
    @Override
    public void run() {
      image.setBackground(temp);
      image.invalidate();
    }
  });

  beginLoopTime = System.currentTimeMillis();
}

}

This function draws only last frame. I tried to use onWindowFocusChanged...same effect.

What about creating a runnable and changing the frames inside that — Triode, Dec 09 '13 at 19:38
The whole activity is used only for 1 animation, and will be never used after. That`s why i think there is no need in new thread. Or can you give me more full description or link? — BeHunter, Dec 10 '13 at 05:59

score 1 · Accepted Answer · edited May 23 '17 at 10:25

1

You can create frame animation using xml and load the animation inside the activity. Or else create a runnable and run it inside the UI thread.

See this link to get the basic Idea about frame animation in android.

Usage of post method and runnable

edited May 23 '17 at 10:25

Community

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answered Dec 10 '13 at 07:08

Triode

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Tile set animation in android

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