Android MediaPlayer详解视屏播放之SurfaceView(四)

Android MediaPlayer详解视屏播放之SurfaceView(四)

效果图

Android MediaPlayer详解(一)

Android MediaPlayer音频播放(二)

Android MediaPlayer视频播放之VideoView(三)

MediaPlayer 视屏播放之SurfaceView

1.XML布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.cxy.mediaplayer.MainActivity">

    <SurfaceView
        android:id="@+id/sfv_show"
        android:layout_width="match_parent"
        android:layout_height="300dp"/>

    <Button
        android:id="@+id/btn_start"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="开始"/>

    <Button
        android:id="@+id/btn_pause"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="暂停 "/>

    <Button
        android:id="@+id/btn_stop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="终止"/>

</LinearLayout>

2.主类MainActivity

package com.example.cxy.mediaplayer;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity implements View.OnClickListener, SurfaceHolder.Callback {
    private MediaPlayer mPlayer = null;
    private SurfaceView sfv_show;
    private SurfaceHolder surfaceHolder;
    private Button btn_start;
    private Button btn_pause;
    private Button btn_stop;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        sfv_show = (SurfaceView) findViewById(R.id.sfv_show);
        btn_start = (Button) findViewById(R.id.btn_start);
        btn_pause = (Button) findViewById(R.id.btn_pause);
        btn_stop = (Button) findViewById(R.id.btn_stop);
        btn_start.setOnClickListener(this);
        btn_pause.setOnClickListener(this);
        btn_stop.setOnClickListener(this);
        //初始化SurfaceHolder类，SurfaceView的控制器
        surfaceHolder = sfv_show.getHolder();
        surfaceHolder.addCallback(this);
        //显示的分辨率,不设置为视频默认
        surfaceHolder.setFixedSize(320, 220);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_start:
                mPlayer.start();
                break;
            case R.id.btn_pause:
                mPlayer.pause();
                break;
            case R.id.btn_stop:
                mPlayer.stop();
                break;
        }
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        mPlayer = MediaPlayer.create(MainActivity.this, R.raw.oppo);
        mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        //设置显示视频显示在SurfaceView上
        mPlayer.setDisplay(surfaceHolder);
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mPlayer.isPlaying()) {
            mPlayer.stop();
        }
        mPlayer.release();
    }
}