package com.example.handler;
 
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
 
public class MainActivity extends ActionBarActivity {
    
    public static final String TAG = "HandlerTest";
    public HandlerThread mHandlerThread;
    public Handler mChileHandler;
    public Handler mHandlerCToP = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            int id =  (int) Thread.currentThread().getId();
            Log.d(TAG, "mHandlerCToP currentThread id is:" + id);
        }
    };
    public Button mButtonPtoC;
    public Button mButtonCtoP;
    public Button mButtonCtoC;
    
    public Handler mHandler = new Handler();
    public Handler mHandlerCtoC = null;
    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        int id =  (int) Thread.currentThread().getId();
        Log.d(TAG, "onCreate currentThread id is:" + id);
        
        initUIAndThread();
    }
    
    public void initUIAndThread() {
        mHandlerThread = new HandlerThread("chenyu");
        mHandlerThread.start();
        mHandler = new Handler(mHandlerThread.getLooper()) {
            @Override
            public void handleMessage(Message msg) {
                int id =  (int) Thread.currentThread().getId();
                Log.d(TAG, "initThread() mHandler handleMessage currentThread id is:" + id);
                switch(msg.what) {
                    case 0:
                        mHandlerCToP.post(new Runnable(){
                            @Override
                            public void run() {
                                int id =  (int) Thread.currentThread().getId();
                                Log.d(TAG, "initThread() mHandlerCToP post currentThread id is:" + id);
                                mButtonPtoC.setText("chenyu");
                            }
                        });
                        break;
                    case 1:
                        mHandlerCToP.post(new Runnable(){
                            @Override
                            public void run() {
                                int id =  (int) Thread.currentThread().getId();
                                Log.d(TAG, "initThread() mHandlerCToP post currentThread id is:" + id);
                                mButtonCtoC.setText("chenyu");
                            }
                        });
                    default:
                        break;
                }
            }
        };
        
        mButtonPtoC = (Button)findViewById(R.id.button1);
        mButtonCtoP = (Button)findViewById(R.id.button2);
        mButtonCtoC = (Button)findViewById(R.id.button3);
        
        mButtonPtoC.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                int id =  (int) Thread.currentThread().getId();
                Log.d(TAG, "mButtonPtoC currentThread id is:" + id);
                Log.d(TAG, "mHandlerPToc msg.what is 0");
                mHandler.sendEmptyMessage(0);
            }
        });
        
        mButtonCtoP.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                int id =  (int) Thread.currentThread().getId();
                Log.d(TAG, "mButtonCtoP currentThread id is:" + id);
                Log.d(TAG, "mHandlerPToc msg.what is 0");
                mHandlerCToP.sendEmptyMessage(0);
            }
        });
        
        mButtonCtoC.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                new Thread(new Runnable(){
                    @Override
                    public void run() {
                        int id =  (int) Thread.currentThread().getId();
                        Log.d(TAG, "mButtonCtoC currentThread id is:" + id);
                        Log.d(TAG, "mHandlerCToc msg.what is 1");
                        mHandler.sendEmptyMessage(1);
                    }
                }).start();
            }
        });
    }
    
     @Override
     protected void onDestroy() {
         super.onDestroy();
         mHandlerThread.quit();
     }    
}