android的Looper例子

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直接貼代碼

MsgThread.java

package bb.aa.looperdemo;import android.os.Handler;import android.os.Looper;import android.os.Message;import android.util.Log;public class MsgThread extends Thread{    public static final String TAG = "MsgThread";    public Handler _handler = null;    @Override    public void run() {        Log.d(TAG, "進入Thread的run");        Looper.prepare();//        _handler = new Handler(Looper.getMainLooper()){        _handler = new Handler(Looper.myLooper()){            @Override            public void handleMessage(Message msg){                Log.d(TAG, "獲得了message");                super.handleMessage(msg);            }        };        Looper.loop();    }    public void sendMsg(int what, Object object){        Message message = _handler.obtainMessage();        message.what = what;        message.obj = object;        _handler.sendMessage(message);    }}

 

MainActiivty.java

package bb.aa.looperdemo;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends AppCompatActivity {    private MsgThread _msgThread = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        startThread();        Button button = (Button)findViewById(R.id.button);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                _msgThread.sendMsg(123, null);            }        });    }    private void startThread(){        _msgThread = new MsgThread();        _msgThread.start();    }}

 

android的Looper例子