從SD卡播放視頻文件

Question

我試圖從SD卡播放視頻，我從eclipse的DDMS視圖中將視頻壓入mnt/sdcard文件夾。但是模擬器屏幕顯示爲空白，沒有任何錯誤。請幫助。

public class Video extends Activity { 
private MediaController mc; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    videoPlayer("mnt/sdcard","bikekid",true); 
} 


public void videoPlayer(String path, String fileName, boolean autoplay){ 
    //get current window information, and set format, set it up differently, if you need some special effects 
    getWindow().setFormat(PixelFormat.TRANSLUCENT); 
    //the VideoView will hold the video 
    VideoView videoHolder = new VideoView(this); 
    //MediaController is the ui control howering above the video (just like in the default youtube player). 
    videoHolder.setMediaController(new MediaController(this)); 
    //assing a video file to the video holder 
    videoHolder.setVideoURI(Uri.parse(path+"/"+fileName)); 
    //get focus, before playing the video. 
    videoHolder.requestFocus(); 
    if(autoplay){ 
     videoHolder.start(); 
    } 

} 

}/// end class 

Answer 1

使用

.getAbsolutePath() 

，而不是"mnt/sdcard"

編輯：

使用本

File file = new File(Environment.getExternalStorageDirectory(),"bikekid"); 
Uri mUri = Uri.fromFile(fie); 
videoHolder.setVideoURI(mUri);