Showing gif in android

i have this code to show gif image with Movie.

public class GIFView extends View{        
private Movie movie;  
private InputStream is;  
private long moviestart;  
public GIFView(Context context) {  
    super(context);
    is=getResources().openRawResource(R.drawable.anim_cerca);  
    movie=Movie.decodeStream(is);
}  

@Override  
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    long now=android.os.SystemClock.uptimeMillis();  

    if (moviestart == 0) 
        moviestart = now;  

    int relTime = (int)((now - moviestart) % movie.duration());
    movie.setTime(relTime);
    movie.draw(canvas,10,10);
    this.invalidate();
}                         

}

My problem borns when gif is loaded, it draw very bad, only the first frame is shown and the other are like disturbed. What can i do?

EDIT: THE PROBLEM IS EMULATOR! IT DOESN'T SHOW GIF, BUT ON DEVICE IT'S OK! :)

I solved in this way :

public class GIFView extends View{        
    private Movie movie;    
    private long moviestart;  
    public GIFView(Context context) throws IOException {  
        super(context);
    movie=Movie.decodeStream(getResources().getAssets().open("anim_cerca.gif"));
    }
    public GIFView(Context context, AttributeSet attrs) throws IOException{
        super(context, attrs);
    movie=Movie.decodeStream(getResources().getAssets().open("anim_cerca.gif"));
    }
    public GIFView(Context context, AttributeSet attrs, int defStyle) throws IOException {
        super(context, attrs, defStyle);
        movie=Movie.decodeStream(getResources().getAssets().open("anim_cerca.gif"));
    }
@Override  
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
    long now=android.os.SystemClock.uptimeMillis();
    Paint p = new Paint();
    p.setAntiAlias(true);
    if (moviestart == 0) 
            moviestart = now;
            int relTime;
            relTime = (int)((now - moviestart) % movie.duration());
            movie.setTime(relTime);
            movie.draw(canvas,0,0);
            this.invalidate();
       }                         
}    

and in layout i put this custom view in this way:

<spazio.digitale.com.GIFView
        android:layout_marginLeft="30dp" android:layout_gravity="center"
        android:layout_width="wrap_content" android:layout_height="220dp"
        android:id="@+id/GIFSingle">
</spazio.digitale.com.GIFView>