Android Studio 实现视频播放暂停功能

先上效果图，可以实现 视频播放，暂停和结束。但播放完一次后会提示播放完毕，无法重复播放。需要在res/里创建raw文件夹存放视频文件。

分为两部分，分别是MainActive.java

package com.example.mediaplayer;
import androidx.appcompat.app.AppCompatActivity;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private MediaPlayer mPlayer = null;
    private SurfaceView sfv_show;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sfv_show = findViewById(R.id.surface);
        SurfaceHolder surfaceHolder = sfv_show.getHolder();
        Button btn_start = findViewById(R.id.btn1);
        Button btn_pause = findViewById(R.id.btn2);
        Button btn_stop = findViewById(R.id.btn3);
        mPlayer = MediaPlayer.create(MainActivity.this,R.raw.video);
        mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {
                Toast.makeText(MainActivity.this,"视频播放完毕",Toast.LENGTH_LONG).show();
            }
        });
        btn_start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mPlayer.setDisplay(sfv_show.getHolder());
                mPlayer.start();
            }
        });
        btn_pause.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mPlayer.pause();
            }
        });
        btn_stop.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mPlayer.stop();
            }
        });

    }
}

 activity_main.xml代码如下

<?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">
    <SurfaceView
        android:id="@+id/surface"
        android:layout_width="wrap_content"
        android:layout_height="200dp"
        android:layout_gravity="center_horizontal"
        android:keepScreenOn="true"/>
    <Button
        android:id="@+id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="播放"/>
    <Button
        android:id="@+id/btn2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="暂停"/>
    <Button
        android:id="@+id/btn3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="停止"/>
</LinearLayout>