VideoView视频播放

AndroidManifest.xml

添加权限，由于视频可以是由网络提供，所以这里要有网络权限

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
    tools:ignore="ProtectedPermissions"></uses-permission>

VideoActivity.java

这里要说一下

Environment.getExternalStorageDirectory().getPath()路径指的是:/storage/emulated/0/

package com.example.a20200712;

import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.widget.MediaController;
import android.widget.VideoView;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

public class VideoActivity extends AppCompatActivity {
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.video_layout);

        VideoView videoView = (VideoView)findViewById(R.id.video_layout_videoBox);

        //加载指定的视频文件
        //String path = Environment.getExternalStorageDirectory().getPath()+"/Download/haha.mp4";
        //videoView.setVideoPath(path);

        //本地数据
        Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+"/Download/haha.mp4");
        //网络视频
        //Uri uri = Uri.parse("http://poss.videocloud.cns.com.cn/oss/2020/07/19/chinanews/MEIZI_YUNSHI/onair/F1B171FB2ECB4319ADAC3FF2915C7E4B.mp4");
        videoView.setVideoURI(uri);

        //创建MediaController对象
        MediaController mediaController = new MediaController(this);
        //VideoView与MediaController建立关联
        videoView.setMediaController(mediaController);
        //让VideoView获取焦点
        videoView.requestFocus();
        //打开就立马播放
        videoView.start();
    }

}

video_layout.xml

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

    <VideoView
        android:id="@+id/video_layout_videoBox"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </VideoView>
</LinearLayout>