在android中的背景過程和時間安排

Question

我正在android中製作一個應用程序。這總是在後臺運行，5分鐘後打印一個代碼。那個時候應用程序不會顯示用戶，並且所有進程都在後臺運行。請幫幫我。 如何解決這個問題。

package com.finalapp; 

import android.os.Bundle; 
import android.app.Activity; 
import android.util.Log; 
import android.view.Menu; 

public class MainActivity extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    MainActivity.this.runOnUiThread(new Runnable() { 

     @Override 
     public void run() { 
      // TODO Auto-generated method stub 

      for(int i=0 ;i<=2000000;i++) 
      { 
       try { 
        Thread.sleep(1000); 
        Log.d("final timer",""+ i); 
       } catch (InterruptedException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
      } 

     } 
    }); 



} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

} 


Please tell me how to make this application. For working in background. 

Always print this number in background. 


Please help me. 

Answer 1

寫您的UI線程更新邏輯可運行內部，如圖：

YourActivity.this.runOnUiThread(new Runnable() { 

        @Override 
        public void run() { 
//paste your ui thread logic here 

        } 
       });