1. 程式人生 > >實現android專案標題每隔5秒改變一次

實現android專案標題每隔5秒改變一次

package com.example.titleclockproject;

import java.util.Timer;
import java.util.TimerTask;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;

public class MainActivity extends Activity {
	private int count=1;
	private Handler handler=new Handler(){
		public void handleMessage(android.os.Message msg) {
			switch (msg.what) {
			case 1:
				updateTitle();
				break;

			default:
				break;
			}
		};
	};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //第一種方法(1秒之後開始,間隔5秒)
        Timer timer=new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
			
			@Override
			public void run() {
				Message message=new Message();
				message.what=1;
				handler.sendMessage(message);
				
			}
		}, 1000,5000);
        //第二種方法
        //TitleChange titleChange=new TitleChange();
        //Thread thread=new Thread(titleChange);
        //thread.start();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
//    class TitleChange implements Runnable{
//
//		@Override
//		public void run() {
//			while(true){
//				Message message=new Message();
//				message.what=1;
//				handler.sendMessage(message);
//				try {
//					Thread.sleep(5000);
//				} catch (InterruptedException e) {					
//					e.printStackTrace();
//				}
//			}
//			
//		}		
//    	
//    }
    private void updateTitle(){
    	this.setTitle("welcome to project"+count++);
    }

    
}