如何让Android支持GIF图片

public class SampleView extends View { private Movie mMovie; private Bitmap mBitmap; private Canvas mCanvas; private long mMovieStart;    private  byte[] streamToBytes(InputStream is) {             ByteArrayOutputStream os = new ByteArrayOutputStream(1024);             byte[] buffer = new byte[1024];             int len;             try {                 while ((len = is.read(buffer)) >= 0) {                     os.write(buffer, 0, len);                 }             } catch (java.io.IOException e) {             }             return os.toByteArray();         } public SampleView(Context context) { super(context);    setFocusable(true);    InputStream is;    is = context.getResources().openRawResource(R.drawable.aa_gif);    if (true) {              mMovie = Movie.decodeStream(is);          } else {              byte[] array = streamToBytes(is);              mMovie = Movie.decodeByteArray(array, 0, array.length);          }  int w = mMovie.width();          int h = mMovie.height();          Log.i("-------width-------", w+"");          Log.i("-------height-------", h+"");        // int[] pixels = new int[w*h]; mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);           mCanvas = new Canvas(mBitmap);             }       @Override     protected void onDraw(Canvas canvas) {         canvas.drawColor(0xFFCCCCCC);                        Paint p = new Paint();         p.setAntiAlias(true);          long now = android.os.SystemClock.uptimeMillis();         if (mMovieStart == 0) {   // first time             mMovieStart = now;         }         if (mMovie != null) {             int dur = mMovie.duration();             if (dur == 0) {                 dur = 1000;             }             int relTime = (int)((now - mMovieStart) % dur);             mMovie.setTime(relTime);             mCanvas.drawColor(0xFFCCCCCC);             mMovie.draw(mCanvas, 0, 0);             Bitmap bitmap = Bitmap.createScaledBitmap(mBitmap, 300, 300, false);               mBitmap.createScaledBitmap(mBitmap, 200, 300, false);             canvas.drawBitmap(bitmap, 100, 200, null);             invalidate();         }     } }public class MainActivity extends Activity {    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        SampleView sampleView = new SampleView(this);        setContentView(sampleView);    }}
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