Question

这是我的视频代码

try {

            // Start the MediaController
            MediaController mediacontroller = new MediaController(
                    SingleItemView.this);
            mediacontroller.setAnchorView(videoview);
            // Get the URL from String VideoURL
            videoview.setMediaController(mediacontroller);
            videoview.setVideoURI(Uri.parse(video));
            videoview.requestFocus();
            videoview.setKeepScreenOn(true);

            videoview
                    .setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                        // Close the progress bar and play the video
                        public void onPrepared(MediaPlayer mediaPlayer) {
                            mProgressDialog.dismiss();
                            videoview.start();
                        }
                    });
        } catch (Exception e) {
            mProgressDialog.dismiss();
            Log.e("Error", e.getMessage());
            e.printStackTrace();
        }

但如果视频流无效，则对话框仍然存在。

如果视频无效，我想把对话框放回主要活动..

我怎么能这样做？

我尝试把对话但仍然不工作我不知道为什么..

提前谢谢:)

编辑：我也尝试这样但仍然无法正常工作

try {
                    // Start the MediaController
                    MediaController mediacontroller = new MediaController(
                            SingleTrackActivity.this);
                    mediacontroller.setAnchorView(videoview);
                    // Get the URL from String VideoURL
                    videoview.setMediaController(mediacontroller);
                    videoview.setVideoURI(Uri.parse(duration));
                    videoview.requestFocus();
                    videoview.setKeepScreenOn(true);

                    videoview
                            .setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                                // Close the progress bar and play the video
                                public void onPrepared(
                                        MediaPlayer mediaPlayer) {
                                    pDialog.dismiss();
                                    videoview.start();
                                }
                            });
                } catch (Exception e) {
                    AlertDialog alertDialog = new AlertDialog.Builder(
                            SingleTrackActivity.this).create();

                    // Setting Dialog Title
                    alertDialog.setTitle("Alert Dialog");

                    // Setting Dialog Message
                    alertDialog.setMessage("Video Play Error :"
                            + e.toString());

                    pDialog.dismiss();

                    System.out.println("Video Play Error :" + e.toString());
                    finish();
                }

Answer 1

媒体播放器的工作是从您的代码异步完成的。如果媒体设置失败，则代码完成您的方法后将失败。同时，由于媒体没有进入onPreparedListener状态，因此未调用PREPARED。因此，请尝试添加OnErrorListener：

videoview.setOnErrorListener(new MediaPlayer.OnErrorListener(){
    public boolean onError(MediaPlayer mp, int what, int extra) {
        // inform the user something went wrong
        mProgressDialog.dismiss();
        return true;
    }
});

如果这不起作用，请检查您为媒体播放器/视频查看获得的回调。

视频无法启动时会启动一个对话框来支持主要活动

1 个答案: