Android(安卓)APIDemo gif图片显示

import android.content.Context;import android.graphics.Canvas;import android.graphics.Movie;import android.util.AttributeSet;import android.view.View;public class GifView extends View{    private Context mContext;    private Movie mMovie;    private long mMovieStart;    private int dur;    public GifView(Context context)    {        super(context);        mContext = context;        initMovie();    }    public GifView(Context context, AttributeSet attrs)    {        super(context, attrs);        mContext = context;        initMovie();    }    private void initMovie()    {        mMovie = Movie.decodeStream(mContext.getResources().openRawResource(                R.drawable.gif1));        dur = mMovie.duration();        if (dur <= 0)        {            dur = 1000;        }    }    @Override    protected void onDraw(Canvas canvas)    {        if (mMovie != null)        {            long now = android.os.SystemClock.uptimeMillis();            if (mMovieStart == 0)            {                mMovieStart = now;            }            mMovie.setTime((int) ((now - mMovieStart) % dur));            mMovie.draw(canvas, 0, 0);            invalidate();        }    }}
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