安卓使用VideoView播放raw目录的视频和sd卡的视频

效果

代码

package com.javen.devicemange.CrazyOne.media;

import android.Manifest;
import android.content.res.AssetManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.VideoView;

import com.javen.devicemange.R;

import java.io.File;

/**
* Created by Administrator on 2017/2/27 0027.
* 使用VideoView播放raw目录的视频和sd卡的视频
*/

public class VideoViewTest extends AppCompatActivity implements View.OnClickListener {
private VideoView video;
private Button play;
private MediaController mediaController;
private Button raw;
private Button assets;
private AssetManager assetManager;

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.videoviewtest);
initView();
requestPermission();

}

private void requestPermission() {
String[] needPermission = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
};
ActivityCompat.requestPermissions(this, needPermission, 1);
}

private void initView() {
video = (VideoView) findViewById(R.id.video);
play = (Button) findViewById(R.id.play);
play.setOnClickListener(this);
raw = (Button) findViewById(R.id.raw);
raw.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.play:
playVideoMp4();
break;
case R.id.raw:
playVideoRaw();
break;
}
}

/**
* 播放raw的小视频
*/
private void playVideoRaw() {
mediaController = new MediaController(this);
//获取raw.mp4的uri地址
String uri = "android.resource://" + getPackageName() + "/" + R.raw.raw;
video.setVideoURI(Uri.parse(uri));
//让video和mediaController建立关联
video.setMediaController(mediaController);
mediaController.setMediaPlayer(video);
//让video获取焦点
video.requestFocus();
//监听播放完成，
video.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
//重新开始播放
video.start();
}
});
}

/**
* 播放sd卡的小视频
*/
private void playVideoMp4() {
mediaController = new MediaController(this);
//获取sd卡根目录下的test.mp4文件
File file = new File(Environment.getExternalStorageDirectory().toString() + "/test.mp4");
if (file.exists()) {
video.setVideoPath(file.getAbsolutePath());
//让video和mediaController建立关联
video.setMediaController(mediaController);
mediaController.setMediaPlayer(video);
//让video获取焦点
video.requestFocus();
}
}
}

raw目录

sd卡目录

布局xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:id="@+id/raw"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="播放raw目录的小视频"/>
<Button
android:id="@+id/play"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="播放sd卡的小视频"/>

<VideoView android:id="@+id/video"
android:layout_width="match_parent"
android:layout_height="300dp"/>
</LinearLayout>

AndroidManifest.xml

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>