Android如何改變電影尺寸GIF

Question

我有一個gif，由電影類運行在畫布上。我如何根據屏幕尺寸改變電影尺寸？我試着用canvas.scale()但GIF disappeard來改變它，如果我改變了高度比1.1大的值..

下面是代碼：

public class OurView extends SurfaceView implements Runnable { 
     private Movie mMovie; 
     InputStream mStream; 

     public OurView(Context context, InputStream stream) { 
      super(context); 
      holder = getHolder(); 
      mStream = stream; 
      mMovie = Movie.decodeStream(mStream); 

     } 

     private long mMoviestart = 0; 
     Thread t = null; 
     SurfaceHolder holder; 
     boolean isItOK = false; 

     public OurView(Context c) { 
      super(c); 
      holder = getHolder(); 
     } 

     public void run() { 
      while (isItOK) { 
       if (!holder.getSurface().isValid()) { 
        continue; 
       } 
       Canvas c = holder.lockCanvas(); 
       try { 
        t.sleep(90); 
       } catch (InterruptedException e) { 
        e.printStackTrace(); 
       } 
       x -= 10; 
       if (x + screenWidth <= 0) { 
        x = 0; 
       } 

       c.drawARGB(255, 150, 150, 10); 
       c.drawBitmap(map, 0, 0, null); 
       c.drawBitmap(grass, x, this.getHeight() - grassHeight, null); 
       c.drawBitmap(grass, (x + screenWidth), this.getHeight() - grassHeight, null); 
       final long now = SystemClock.uptimeMillis(); 
       if (mMoviestart == 0) { 
        mMoviestart = now; 
       } 
       final int relTime = (int) ((now - mMoviestart) % mMovie.duration()); 
       mMovie.setTime(relTime); 
       mMovie.draw(c, screenWidth/7, this.getHeight() - (grassHeight + 30)); 
       holder.unlockCanvasAndPost(c); 
      } 
     } 
} 

感謝您的任何建議。

Answer 1

我使用canvas.scale（），它的工作原理。