Question

我编写这个程序但是当我运行这个程序时，程序无法读取run（）方法，因为在logCat中没有显示log.e（）而在textView中没有显示消息。为什么呢？

MainActivity.java：

public class MainActivity extends Activity{

private TextView textModifiedThread;
private int threadModifiedInt=4;
private Point threadModifiedPoint=new Point(20,10);
boolean activeThread=true;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Log.e("CREATE", "READ");

    textModifiedThread=(TextView)findViewById(R.id.textId);
    Thread currentThread=new Thread(){
        public void Run(){
            Log.e("RUN", "READ");
            try{
                threadModifiedInt=20;
                threadModifiedPoint.set(30, 40);

                int timeCounter=100;
                while(activeThread&&(timeCounter>0)){
                    try {
                        sleep(100);
                    } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    if(timeCounter%10==0){
                        threadHandler.sendEmptyMessage((int)timeCounter/10);
                        Log.e("WHile", "Read");
                    }
                    timeCounter--;
                }
            }finally{
                finish();
            }
        }
    };        
    currentThread.start();
}

@Override
public boolean onTouchEvent(MotionEvent event){
    if(event.getAction()==MotionEvent.ACTION_DOWN){
        activeThread=false;
        Log.e("TOUCH", "READ");
    }
    return super.onTouchEvent(event);
}
private Handler threadHandler=new Handler(){
    public void handleMessage(android.os.Message msg){
        textModifiedThread.setText("test int is "+threadModifiedInt+"\ntest    point is "+threadModifiedPoint.toString()+"\ncounter is "+Integer.toString(msg.what));
        Log.e("ERROR", "Read this");
    }
};
}

activity_main.xml中：

 <?xml version="1.0" encoding="UTF-8"?>
 <LinearLayout 
android:layout_height="fill_parent" 
android:layout_width="fill_parent" 
android:orientation="vertical" 
xmlns:android="http://schemas.android.com/apk/res/android"> 
<TextView 
    android:layout_height="wrap_content" 
    android:layout_width="fill_parent" 
    android:id="@+id/textId"/> 
    </LinearLayout>

Answer 1

因为你错误拼写了运行词：

public void Run(){

运行必须是小写的。所以正确的方法是：

public void run()

Answer 2

请尝试使用Runnable Thread。并且您的公共虚空Run（）尝试将其更改为public void run()。这可能是它的原因。

Thread currentThread=new Thread(new Runnable){
    public void run(){

    }
 }

为什么程序无法读取run（）方法？

2 个答案: