Create animated splash screen using frames on Android

Question

So here's the deal, I've searched every single question and link online but none are helpful. I have 120 frames of an animation in .jpg format for my splash screen. I understand that jpegs are converted to bitmaps on memory so that's why I get an OutOfMemoryError. The maximum frames I get to animate are 10. Is there any way to do this frame by frame, or should I try something else. Here's my code:

    final AnimationDrawable anim = new AnimationDrawable();
    anim.setOneShot(true);

    for (int i = 1; i <= 120; i++) 
    {
        Drawable logo = getResources().getDrawable(getResources()
                  .getIdentifier("l"+i, "drawable", getPackageName()));

        anim.addFrame(logo, 50);
        if (i % 3 == 0)
        {
            System.gc();
        }
    }

    ImageView myImageView = (ImageView) findViewById(R.id.SplashImageView);
    myImageView.setBackgroundDrawable(anim);
    myImageView.post(new Runnable()
    {
       public void run()
       {
          anim.start();
       }
    });

I've placed the 120 jpegs under the drawable folder with an "l" prefix (eg l1, l2 etc). I do garbage collection every 3 jpegs but that won't do a thing.

Answer 1

You can try to do it without AnimationDrawable using Handler.postDelayed . Something like this:

final ImageView image = (ImageView) findViewById(R.id.SplashImageView);
final Handler handler = new Handler();

final Runnable animation = new Runnable() {
    private static final int MAX = 120;
    private static final int DELAY = 50;

    private int current = 0;

    @Override
    public void run() {
        final Resources resources = getResources();
        final int id = resources.getIdentifier("l" + current, "drawable", getPackageName());
        final Drawable drawable = resources.getDrawable(id);

        image.setBackgroundDrawable(drawable);
        handler.postDelayed(this, DELAY);
        current = (current + 1) % MAX;
    }
};

handler.post(animation);

This solution requires less memory because it keeps only one drawable at the time.

You can cancel the animation using handler.removeCallbacks(animation); .

If you want make a one-shot animation you can call handler.postDelayed conditionally:

if (current != MAX - 1) {
    handler.postDelayed(this, DELAY);
}

Answer 2

Y̶o̶u̶ ̶n̶e̶e̶d̶ ̶t̶o̶ ̶c̶a̶l̶l̶ ̶.̶r̶e̶c̶y̶c̶l̶e̶(̶)̶ ̶o̶n̶ ̶t̶h̶e̶ ̶b̶i̶t̶m̶a̶p̶s̶ ̶y̶o̶u̶ ̶d̶o̶n̶'̶t̶ ̶u̶s̶e̶ ̶a̶n̶y̶m̶o̶r̶e̶.̶ ̶O̶t̶h̶e̶r̶w̶i̶s̶e̶ ̶t̶h̶e̶y̶ ̶w̶o̶n̶t̶ ̶b̶e̶ ̶g̶a̶r̶b̶a̶g̶e̶ ̶c̶o̶l̶l̶e̶c̶t̶e̶d̶ ̶p̶r̶o̶p̶e̶r̶l̶y̶.̶

Also in the manifest set uses large heap to true. This gives you a bit more space to breathe. >)

Answer 3

我尝试了所有这些解决方案，每一个都变得更好：D我可以使用更多的帧和更高的分辨率，但仍然不满足经理:(我发现最好的解决方案是使用视频而不是帧它就像一个魅力甚至低内存设备我在xperia u上使用256mb ram的视频编解码器（H.264 mp4）测试了每个尺寸为480 * 854的150帧