[Android]_ch10.1_播放專案中多媒體檔案

[Android]_ch10.1_播放專案中多媒體檔案



package com.example.ch24_resourcesmedia;



import android.app.Activity;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;





public class MainActivity extends Activity {

Button btn1,btn2,btn3;

MediaPlayer mp;

boolean stoped=true;

TextView tv1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn1=(Button)findViewById(R.id.button1);

        btn2=(Button)findViewById(R.id.button2);

        btn3=(Button)findViewById(R.id.button3);

        tv1=(TextView)findViewById(R.id.textView1);

        btn1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

if(mp==null || stoped){

mp=MediaPlayer.create(MainActivity.this, R.raw.lee);

stoped=false;

}

mp.start();

tv1.setText("播放中...檔案來源:"+getString(R.raw.lee));

}

});

btn2.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

mp.pause();

tv1.setText("暫停...檔案來源:"+getString(R.raw.lee));

}

});

btn3.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

mp.stop();

stoped=true;

tv1.setText("停止...檔案來源:"+getString(R.raw.lee));

}

});

    }

@Override

protected void onPause() {

// TODO Auto-generated method stub

super.onPause();

if(mp!=null){

mp.release();

mp=null;

}

}

}