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表面視圖類中的線程使畫布繼續崩潰,因爲線程進入致命異常。然後發生NullPointerException。它說,問題發生在第28行,但一切都很好。然後程序跳過了數百幀。它說應用程序在主線程中做了太多工作。有沒有什麼辦法解決這一問題?SurfaceView線程失敗
下面是代碼:
package com.mtprogramming.blockfight;
import android.content.Context;
import android.graphics.Canvas;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class SView extends SurfaceView implements Runnable{
SurfaceHolder sviewholder;
Thread thread = null;
Boolean game = true;
public SView(Context context) {
// TODO Auto-generated constructor stub
super(context);
sviewholder = getHolder();
thread = new Thread(this);
thread.start();
}
@Override
public void run() {
while(game){
if(sviewholder.getSurface().isValid()){
continue;
}
Canvas sview = sviewholder.lockCanvas();
sview.drawRGB(33, 66, 150);
sviewholder.unlockCanvasAndPost(sview);
}
}
}
你能舉個例子嗎? – Nebraska