多媒体——视频——利用视频视图VideoView播放视频

矫情吗；* 2024-04-03 12:50 79阅读 0赞

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布局：

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主代码：

package com.example.myapplication;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.MediaController;
    import android.widget.VideoView;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    public class MainActivity extends AppCompatActivity implements View.OnClickListener
    {
    
        private final static String TAG = "VideoPlayActivity";
        private VideoView vv_content; // 声明一个视频视图对象
        private int CHOOSE_CODE = 3; // 只在视频库挑选图片的请求码
    
        @Override
        protected void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            // 从布局文件中获取名叫vv_content的视频视图
            vv_content = findViewById(R.id.vv_content);
            findViewById(R.id.btn_choose).setOnClickListener(this);
        }
    
        @Override
        public void onClick(View v)
        {
            if (v.getId() == R.id.btn_choose)
            {
                // 创建一个内容获取动作的意图(准备跳到系统视频库)
                // ACTION_GET_CONTENT只可选择近期的视频
                //Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
    
                // ACTION_PICK可选择所有视频
                Intent intent = new Intent(Intent.ACTION_PICK);
                intent.setType("video/*"); // 类型为视频
                startActivityForResult(intent, CHOOSE_CODE); // 打开系统视频库
            }
        }
    
        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent intent)
        {
            super.onActivityResult(requestCode, resultCode, intent);
    
            if (resultCode == RESULT_OK && requestCode == CHOOSE_CODE)
            {
                if (intent.getData() != null)    // 从视频库回来
                {
                    vv_content.setVideoURI(intent.getData());   // 设置视频视图的视频路径
                    MediaController mc = new MediaController(this);   // 创建一个媒体控制条
                    vv_content.setMediaController(mc);   // 给视频视图设置相关联的媒体控制条
                    mc.setMediaPlayer(vv_content);   // 给媒体控制条设置相关联的视频视图
                    vv_content.start();   // 视频视图开始播放
                }
            }
        }
    
    }

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