在android中显示gif [英] Showing gif in android
本文介绍了在android中显示gif的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有这个代码来显示带有电影的 gif 图像.
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();
}
}
我的问题是在加载 gif 时出现的,它绘制得很糟糕,只显示第一帧,而其他帧都被干扰了.我能做什么?
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?
问题是模拟器!它不显示 GIF,但在设备上它没问题!:)
THE PROBLEM IS EMULATOR! IT DOESN'T SHOW GIF, BUT ON DEVICE IT'S OK! :)
推荐答案
我是这样解决的:
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();
}
}
在布局中,我以这种方式放置了这个自定义视图:
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>
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