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POlive wallpaper, frame animation, lags
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copied!<p>My frame animation lagging. Why is it lagging?</p> <p>Code:</p> <pre><code>public class LiveWallpaperService extends WallpaperService { Bitmap mPic; private final Handler mHandler = new Handler(); @Override public void onCreate() { super.onCreate(); } @Override public void onDestroy() { super.onDestroy(); } @Override public Engine onCreateEngine() { return new CubeEngine(); } class CubeEngine extends Engine { private float mPosY, mPosX; private Matrix mMatrix = new Matrix(); private int k = 1; private boolean mAnime = true; private boolean test; private static final int NUM_RES = 30; private final Runnable mDrawAnim = new Runnable() { public void run() { for (int i = 0; i < 31; i++) { k++; drawFrame(); if (i == 30) { k = 1; } } } }; private boolean mVisible; CubeEngine() { Resources res = getResources(); for (int i = 0; i < NUM_RES; i++) { int id = res.getIdentifier("boot_00" + (100 + (i + 1)), "drawable", "com.example.dxd1"); mPic = BitmapFactory.decodeResource(res, id); } } @Override public void onCreate(SurfaceHolder surfaceHolder) { super.onCreate(surfaceHolder); setTouchEventsEnabled(false); } @Override public void onDestroy() { super.onDestroy(); mHandler.removeCallbacks(mDrawAnim); } @Override public void onVisibilityChanged(boolean visible) { mVisible = visible; if (visible) { drawFrame(); }else { mHandler.removeCallbacks(mDrawAnim); } } @Override public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) { super.onSurfaceChanged(holder, format, width, height); float w = mPic.getWidth(); float h = mPic.getHeight(); float s = width / (float) w; float s2 = height / (float) h; mMatrix.reset(); mMatrix.setScale(s, s2); } @Override public void onSurfaceCreated(SurfaceHolder holder) { super.onSurfaceCreated(holder); } @Override public void onSurfaceDestroyed(SurfaceHolder holder) { super.onSurfaceDestroyed(holder); mVisible = false; mHandler.removeCallbacks(mDrawAnim); } public void updateBG() { if (k == 1) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00101); } if (k == 2) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00102); } if (k == 3) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00103); } if (k == 4) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00104); } if (k == 5) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00105); } if (k == 6) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00106); } if (k == 7) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00107); } if (k == 8) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00108); } if (k == 9) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00109); } if (k == 10) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00110); } if (k == 11) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00111); } if (k == 12) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00112); } if (k == 13) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00113); } if (k == 14) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00114); } if (k == 15) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00115); } if (k == 16) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00116); } if (k == 17) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00117); } if (k == 18) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00118); } if (k == 19) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00119); } if (k == 20) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00120); } if (k == 21) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00121); } if (k == 22) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00122); } if (k == 23) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00123); } if (k == 24) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00124); } if (k == 25) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00125); } if (k == 26) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00126); } if (k == 27) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00127); } if (k == 28) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00128); } if (k == 29) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00129); } if (k == 30) { mPic = BitmapFactory.decodeResource(getResources(), R.drawable.boot_00130); } } void drawFrame() { final SurfaceHolder holder = getSurfaceHolder(); Canvas c = null; c = holder.lockCanvas(); if (c != null) { drawAnim(c); } if (c != null) { holder.unlockCanvasAndPost(c); } // Reschedule the next redraw mHandler.removeCallbacks(mDrawAnim); if (mVisible && mAnime) { mHandler.postDelayed(mDrawAnim, 50); } } void drawAnim(Canvas c) { updateBG(); c.drawBitmap(mPic, mMatrix, null); } } </code></pre>

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