android中使用videoview播放視頻
阿新 • • 發佈:2017-05-25
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先是布局文件:
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 xmlns:tools="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:orientation="vertical" 6 tools:context=".MainActivity" > 78 <VideoView 9 android:id="@+id/video" 10 android:layout_width="match_parent" 11 android:layout_height="match_parent" /> 12 13 </LinearLayout>
然後在mainactivity中使用videoview:
1 import java.io.File; 2 3 import android.app.Activity; 4 import android.os.Bundle;5 import android.os.Environment; 6 import android.widget.MediaController; 7 import android.widget.Toast; 8 import android.widget.VideoView; 9 10 public class MainActivity extends Activity { 11 VideoView videoView; 12 MediaController mController; 13 14 @Override 15 protected voidonCreate(Bundle savedInstanceState) { 16 super.onCreate(savedInstanceState); 17 setContentView(R.layout.activity_main); 18 videoView = (VideoView) findViewById(R.id.video); 19 mController = new MediaController(this); 20 File video = new File(Environment.getExternalStorageDirectory() + "/xiexienideai.mp4");//獲得手機上sd卡視頻存儲路徑 21 if(video.exists()){ 22 videoView.setVideoPath(video.getAbsolutePath()); 23 videoView.setMediaController(mController);//設置mController關聯videoview 24 mController.setMediaPlayer(videoView); 25 videoView.requestFocus();//videoview獲得焦點 26 }else{ 27 Toast.makeText(this, "nonono", Toast.LENGTH_LONG).show(); 28 } 29 } 30 31 }
由於使用到sd卡上內容獲取,需要在配置文件中增加權限:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
android中使用videoview播放視頻