我使用以下课程。如何根据点击事件停止并开始循环?我尝试删除invalidate(),但Gif根本没有开始加载。
GifView类
import java.io.InputStream;
import com.example.merchant.R;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Movie;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.View;
public class GifView extends View{
private InputStream gifInputStream;
private Movie gifMovie;
private int movieWidth, movieHeight;
private long movieDuration;
private long movieStart;
public GifView(Context context) {
super(context);
init(context);
}
public GifView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public GifView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
private void init(Context context) {
setFocusable(true);
gifInputStream = context.getResources().openRawResource(R.drawable.ani_bart);
gifMovie = Movie.decodeStream(gifInputStream);
movieWidth = gifMovie.width();
movieHeight = gifMovie.height();
movieDuration = gifMovie.duration();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(movieWidth, movieHeight);
}
public int getMovieWidth() {
return movieWidth;
}
public int getMovieHeight() {
return movieHeight;
}
public long getMovieDuration() {
return movieDuration;
}
@Override
protected void onDraw(Canvas canvas) {
long now = SystemClock.uptimeMillis();
if(movieStart == 0) {
movieStart = now;
}
if(gifMovie != null) {
int dur = gifMovie.duration();
if(dur == 0) {
dur = 1000;
}
int relTime = (int)((now - movieStart) % dur);
gifMovie.setTime(relTime);
gifMovie.draw(canvas, 0, 0);
invalidate();
}
}
}
答案 0 :(得分:1)
这是我用来克服这个问题的。但是不确定这是否是一个有效的解决方案。虽然为我工作。
{{1}}
答案 1 :(得分:0)
猜猜它是不可能的但是如果你需要控制合作,你可以通过animation-list
在android中创建frme aniation