我是完全以新的Andr​​oid，只是想知道，如果它是任何工作和可能的方法来更新主线程之外的用户界面。只是从我的code我在下面列出我知道从code;这是不可能的。但是，事情是的我只是想更新使用另一个线程的UI 。请帮我在此先感谢！

 包com.example.app; 进口了java.util.Random;  进口android.os.Bundle;  进口android.app.Activity;  进口android.view.Menu; 进口android.view.View;  进口android.widget.Button; 进口android.widget.ImageView;进口android.widget.TextView;公共类MainActivity延伸活动{私人键b;公共ImageView的I1; 公共ImageView的I2; 公共ImageView的I3;公共ImageView的I4;公众的TextView笔;公众的TextView S;@覆盖保护无效的onCreate（捆绑savedInstanceState）{super.onCreate（savedInstanceState）;的setContentView（R.layout.activity_main）; I1 =新ImageView的（本）; I1 =（ImageView的）findViewById（R.id.imag1）; I1.setVisibility（View.INVISIBLE）; I2 =新ImageView的（本）; I2 =（ImageView的）findViewById（R.id.imag2）; I2.setVisibility（View.INVISIBLE）; I3 =新ImageView的（本）; I3 =（ImageView的）findViewById（R.id.imag3）; I3.setVisibility（View.INVISIBLE）; I4 =新ImageView的（本）; I4 =（ImageView的）findViewById（R.id.imag4）; I4.setVisibility（View.INVISIBLE）; T =（的TextView）findViewById（R.id.time）; S =（的TextView）findViewById（R.id.score）;线程t =新主题（新MyThread的（））;t.start（）;  }@覆盖公共布尔onCreateOptionsMenu（菜单菜单）{//充气菜单;如果是present这增加了项目操作栏。。getMenuInflater（）膨胀（R.menu.main，菜单）;返回true;}私有类MyThread的实现Runnable {随机randomGenerator =新的随机（）;INT N;公共无效的run（）{    而（真）{        N = randomGenerator.nextInt（8）;        如果（N == 1）{            I1.setVisibility（View.VISIBLE）;        }        如果（N == 2）{            I2.setVisibility（View.VISIBLE）;        }        如果（N == 3）{            I3.setVisibility（View.VISIBLE）;        }        如果（N == 4）{            I4.setVisibility（View.VISIBLE）;        }        尝试{            Thread.currentThread（）睡眠（500）。        }赶上（InterruptedException的E）{            // TODO自动生成catch块             e.getStackTrace（）;        }    }   }   }   } 

解决方案

使用activity.runOnUiThread

  Acivity.runOnUiThread（新的Runnable（）{    公共无效的run（）{        //这里的东西    }}）; 

I am totaly new to android and just want to know if it is any working and possible way to update the UI outside the main thread. Just from my code I have listed below I know that from this code; It is not possible at all. But, the thing is I just want to update the UI using another thread. Please help me thanks in advance!

 package com.example.app;

 import java.util.Random;
  import android.os.Bundle;
  import android.app.Activity;
  import android.view.Menu;
 import android.view.View;
  import android.widget.Button;
 import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends Activity {
private Button b;
public ImageView I1;
 public ImageView I2;
 public ImageView I3;
public ImageView I4;
public TextView T;
public TextView s;
@Override

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

 I1=new ImageView(this);
 I1=(ImageView) findViewById(R.id.imag1);
 I1.setVisibility(View.INVISIBLE);

 I2=new ImageView(this);
 I2=(ImageView) findViewById(R.id.imag2);
 I2.setVisibility(View.INVISIBLE);

 I3=new ImageView(this);
 I3=(ImageView) findViewById(R.id.imag3);
 I3.setVisibility(View.INVISIBLE);

 I4=new ImageView(this);
 I4=(ImageView) findViewById(R.id.imag4);
 I4.setVisibility(View.INVISIBLE);

 T=(TextView)findViewById(R.id.time);
 s=(TextView)findViewById(R.id.score);

Thread t=new Thread(new MyThread());
t.start();
  }

@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;
}

private class MyThread implements Runnable{
Random randomGenerator = new Random();
int n;
public void run(){

    while(true){
        n=randomGenerator.nextInt(8);

        if(n==1){
            I1.setVisibility(View.VISIBLE);

        }
        if(n==2){
            I2.setVisibility(View.VISIBLE);
        }

        if(n==3){
            I3.setVisibility(View.VISIBLE);
        }

        if(n==4){
            I4.setVisibility(View.VISIBLE);
        }
        try {
            Thread.currentThread().sleep(500);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
             e.getStackTrace();
        }
    }

   }




   }
   }

Use activity.runOnUiThread

Acivity.runOnUiThread(new Runnable() {
    public void run() {
        //something here
    }
});