VideoView 的簡單視頻播放

添加布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">
<Button
    android:id="@+id/bt"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="play"></Button>
    <VideoView
        android:id="@+id/vv"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</LinearLayout>

獲取videoview對象之後設置一些參數；

 view.setVideoPath("/mnt/sdcard/m.mp4");
 view.setMediaController(new MediaController(MainActivity.this));
 view.start();

1. 設置文件路徑
2. 設置視頻控制器（設置的爲默認控制器）
3. 開始播放

具體代碼如下

package com.example.myapplication;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.VideoView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {
    private VideoView view;
    private Button bt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt=findViewById(R.id.bt);
        bt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                view.setVideoPath("/mnt/sdcard/m.mp4");
                view.setMediaController(new MediaController(MainActivity.this));

                view.start();
            }
        });
        view=findViewById(R.id.vv);

    }
}