给Android VideoView一个文件目录,就可以直接播放智能设备中的视频文件,现在以播放事先用手机拍好并重命名的视频文件test.mp4为例。
(1) 需要在布局文件中写一个ViedoView:
1 <RelativeLayout ="http://schemas.android.com/apk/res/android" 2 ="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 tools:context="com.example.videoview.MainActivity" > 6 7 <VideoView 8 android:layout_width="match_parent" 9 android:layout_height="match_parent"10 android:id="@+id/videoView" />11 12 </RelativeLayout>
(2)不要忘记在AndroidManifest.
1 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
(3)在java代码中给VideoView设置文件目录,然后start播放:
1 package com.example.videoview; 2 3 import java.io.File; 4 5 import android.app.Activity; 6 import android.os.Bundle; 7 import android.os.Environment; 8 import android.widget.VideoView; 9 10 public class MainActivity extends Activity {11 12 @Override13 protected void onCreate(Bundle savedInstanceState) {14 super.onCreate(savedInstanceState);15 setContentView(R.layout.activity_main);16 17 VideoView videoView = (VideoView) findViewById(R.id.videoView);18 19 // 获得的path等于:/storage/emulated/0/DCIM20 File path = Environment21 .getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);22 23 // 拼接完整路径24 File f = new File(path, "/Camera/test.mp4");25 26 // 此时的f.getAbsolutePath()=/storage/emulated/0/DCIM//\Camera/test.mp427 videoView.setVideoPath(f.getAbsolutePath());28 29 // 开始播放视频30 videoView.start();31 32 // VideiView获焦点33 // videoView.requestFocus();34 }35 }
原标题:Android VideoView简单播放视频
关键词:Android