安卓2.2中的VideoView问题

Question

我想从我的SD卡播放电影。我尝试使用以下代码：

VideoView videoView = (VideoView) findViewById(R.id.videoView);

final String MEDIA_PATH = new String("/sdcard/robot.avi");

MediaController mediaController = new MediaController(this);

mediaController.setAnchorView(videoView);

videoView.setVideoPath(MEDIA_PATH);

videoView.setMediaController(mediaController);

videoView.start();

但是当我尝试播放文件时，出现了一个错误信息，“未找到视频”或类似的内容。当我尝试从网络流媒体中播放时，视频能够正常工作，但非常卡顿。在我的应用程序中播放视频的最佳方法是什么？

谢谢。

- Johan

Answer 1

试试这个...

VideoView videoView = (VideoView) findViewById(R.id.videoView);

final String MEDIA_PATH = new String(Environment.getExternalStorageDirectory()+"/sdcard/robot.avi");

MediaController mediaController = new MediaController(this);

mediaController.setAnchorView(videoView);

videoView.setVideoPath(MEDIA_PATH);

videoView.setMediaController(mediaController);

videoView.start();

- Shankar Agarwal

Answer 2

观察到setVideoPath()失败，而setVideoURI()对于Web和本地都很好用，所以我坚持使用它。

 VideoView videoView = (VideoView) findViewById(R.id.videoView);

    final String MEDIA_PATH = new String("file:///sdcard/robot.avi");

    MediaController mediaController = new MediaController(this);

    mediaController.setAnchorView(videoView);

    videoView.setVideoURI(MEDIA_PATH);

    videoView.setMediaController(mediaController);

    videoView.start();

- Mohammed Azharuddin Shaikh

Answer 3

请使用这段代码。希望它能起作用。

public class VideoPlayActivity extends Activity {
private VideoView video;
private MediaController ctlr;

@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.main);

File clip=new File(Environment.getExternalStorageDirectory(),
               "haha.mp4");


if (clip.exists()) {
video=(VideoView)findViewById(R.id.video);
video.setVideoPath(clip.getAbsolutePath());

ctlr=new MediaController(this);
ctlr.setMediaPlayer(video);
video.setMediaController(ctlr);
video.requestFocus();
video.start();
}
}
}

- MBMJ

Answer 4

尝试使用

video_view.setVideoURI(Uri.parse(path));

如果您尝试将其设置为uri，则无法直接作为字符串路径传递。以下是对我有效的代码：

    path = Environment.getExternalStorageDirectory() + "/file_name";

    // Add controls to a MediaPlayer like play, pause.
    MediaController mc = new MediaController(this);
    video_view.setMediaController(mc);

    // Set the path of Video or URI.
    video_view.setVideoURI(Uri.parse(path));

    // Set the focus.
    video_view.requestFocus();

    video_view.start();

- Daud Arfin

Answer 5

您的问题在于视频路径设置不正确:

只需切换到以下代码:

final String MEDIA_PATH = Environment.getExternalStorageDirectory().getAbsolutePath() + "/robot.avi";

如果SD卡的根目录中存在名为“robot.avi”的视频文件，则此解决方案将解决您的问题。

- Tal Kanel

Answer 6

可能 AVI 格式在安卓系统中不被支持，将其转换为 MP4、WMV 或 3GP 格式。尝试使用以下代码：

public class VideoPlayActivity extends Activity {
 private VideoView video;
 private MediaController ctlr;

@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.main);

File clip=new File(Environment.getExternalStorageDirectory(),
                   "robot.mp4");

if (clip.exists()) {
  video=(VideoView)findViewById(R.id.video);
  video.setVideoPath(clip.getAbsolutePath());

  ctlr=new MediaController(this);
  ctlr.setMediaPlayer(video);
  video.setMediaController(ctlr);
  video.requestFocus();
  video.start();
}
}
}

- MBMJ

Answer 7

你正在使用自己的VideoView播放视频， 但是如果你没有什么需要自定义的，只想在屏幕上显示视频，为什么不使用默认播放器来播放视频呢？

File imgFile = new File(Environment.getExternalStorageDirectory()+"FileName");
//make sure the video is in SDCard, 
//if its located in any folder care to pass full absolute path 
Intent tostart = new Intent(Intent.ACTION_VIEW);
tostart.setDataAndType(Uri.parse(imgFile.getPath()), "video/*");
startActivity(tostart);

- MKJParekh