Drawable not displayed

Question

爲什麼mImage沒有顯示？

public class Manager extends Thread{ 
    private SurfaceHolder mSurfaceHolder; 
    private boolean mRunning; 



public Drawable mImage; 
public Manager(SurfaceHolder surfaceHolder, Context context){ 

    mSurfaceHolder = surfaceHolder; 
    mRunning = false; 

    Resources res = context.getResources(); 


     mImage = res.getDrawable(R.drawable.nhero2); 


    public void setRunning(boolean running) 
    { 
     mRunning = running; 
    } 

    public void run() 
    { 
     while (mRunning) 
     { 
      Canvas canvas = null; 
      try 
      { 
       // подготовка Canvas-а 
       canvas = mSurfaceHolder.lockCanvas(); 
       synchronized (mSurfaceHolder) 
       { 
        // собственно рисование 
        //doDraw(canvas); 
        mImage.draw(canvas); 
       } 
      } 
      catch (Exception e) { } 
      finally 
      { 
       if (canvas != null) 
       { 
        mSurfaceHolder.unlockCanvasAndPost(canvas); 
       } 
      } 
     } 
    } 
} 

P.S.對不起4我的英語

P.P.S. 我試圖創建自己的雙擊自動滾屏射手哈 完整的代碼在這裏（SRY壞評論） 類經理http://pastebin.com/Sjd57uqT 類視圖類scrolBckgr http://pastebin.com/A5u5UJea

Answer 1

您需要調用mImage.setBounds（...）;否則畫布不知道繪製Drawable的位置。

Answer 2

我覺得你的主要問題是，一旦你開始線程.start();布爾mRunning爲假，線程將立即完成。當您嘗試在線程啓動後調用.setRunning(true);時，它將不會產生任何效果，因爲線程已完成。