Android 实战之UI线程和Worker线程交互

哈哈，博文取了个比较霸气的名字，大家不都喜欢这样忽悠人吗呵呵！

好了，现在就是很简单的点击查询，然后这个查询有点花时间，不想见面出现假死现象，所以在另外的线程进行查询。

好了，代码在此：

package com.example.gulanfinddemo;
 
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.widget.EditText;
 
public class FindResActivity extends Activity {
 
    private MyHandler handler;
    private Boolean isKeywordFindBoolean = false;
    EditText resText;
     
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_find_res);
         
        resText = (EditText)findViewById(R.id.ResText);
         
        Log.v("FindResActivity threadId:", String.valueOf(Thread.currentThread().getId()));
         
        Intent intent = getIntent();
        String findReString;
         
        if (null != intent.getStringExtra(MainActivity.suraAyaFindStr)) {
            findReString = "按章节查询";
            isKeywordFindBoolean = false;
        }
        else {
            findReString = "按关键字查询";
            isKeywordFindBoolean = true;
        }
         
        Looper looper = Looper.myLooper();
        handler = new MyHandler(looper);
         
        new findContentThread(handler, findReString).start();
         
        //resText.setText(findReString);
    }
     
    private class MyHandler extends Handler{
        public MyHandler(Looper looper){
            super(looper);
        }
        public void handleMessage(Message msg){
            if (msg.what == 0) {
                Bundle bundle = msg.getData();
                resText.setText(bundle.getString("res"));
            }
        }
    }
     
}

　　看出来了，重载了handler，在

1	`handleMessage里会进行UI的更新。`

package com.example.gulanfinddemo;
 
 
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
 
public class findContentThread extends Thread{
 
    private String queryKeyString;
    private Handler handler;
     
    public findContentThread(Handler sendHandler,String string){
        queryKeyString = string;
        handler = sendHandler;
    }
     
    public void run(){
        Log.v("findContentThread threadId:", String.valueOf(Thread.currentThread().getId()));
        Message msgMessage = new Message();
        Bundle bundle = new Bundle();
        bundle.putString("res", queryKeyString);
        msgMessage.setData(bundle);
        msgMessage.what = 0;
        handler.sendMessage(msgMessage);
        super.run();
    }
}