Android 2.2 VideoView问题

Question

我想播放 SD 卡上的电影。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();

但是当我尝试播放该文件时，我收到一条错误消息。 “找不到视频”或类似的内容。当我尝试从网络流式传输时，视频可以正常播放，但速度很慢。在我的应用程序中播放视频的最佳方式是什么？

谢谢

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();

Answer 2

据观察，setVideoPath() 失败，而 setVideoURI() 对于 Web 和本地都运行良好，所以我坚持您使用它。

 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();

Answer 3

使用此代码。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();
}
}
}

Answer 4

尝试一下，

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

如果您尝试设置为 uri，则不能直接作为字符串路径传递。对我来说工作正常的代码：

    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();

Answer 5

您的问题是视频路径设置不正确：

只需切换到此代码：

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

如果视频“robot.avi”存在于 sd 卡的根文件夹中，这将解决您的问题

Answer 6

您正在自己的 VideoView 中播放视频，
但是，如果您没有任何可自定义的内容，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);

Answer 7

可能是android不支持avi。将其转换为mp4或wmv或3gp。
试试这个代码

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();
}
}
}