如何播放本地视频文件

Question

我正在尝试播放视频，但什么也没发生：

Log.v("MyApp", "PATH : " + videoPath);

LinearLayout linearLayout = new LinearLayout(mContext);

LayoutParams videoView_LP = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

VideoView videoView = new VideoView(RevLibGenConstantine.REV_CONTEXT);
videoView.setLayoutParams(videoView_LP);

videoView.setVideoPath(videoPath);
videoView.requestFocus();
videoView.start();

linearLayout.addView(videoView);

我做错了什么？

视频文件路径为/storage/emulated/0/DCIM/Camera/VID_20180212_195520.mp4

Answer 1

您可以直接在videoview中设置布局参数并使用setVideoURI，请参考下面的代码并检查。

RelativeLayout relativeLayout = findViewById(R.id.yourrelativelayout);
LinearLayout linearLayout = new LinearLayout(mContext);

VideoView video = new VideoView(this);
video.setVideoURI(videoUri);

video.setLayoutParams(new LinearLayout.LayoutParams(
                             LinearLayout.LayoutParams.MATCH_PARENT,
                             LinearLayout.LayoutParams.MATCH_PARENT));

video.requestFocus();
video.start();

linearLayout.addView(video);

// please attach above layout to your xml view
relativeLayout.addView(linearLayout); // here you can either relative or linear

To get videoUri from video path then do like below

Uri videoUri = Uri.fromFile(new File("/storage/emulated/0/DCIM/Camera/VID_20180212_195520.mp4"));

Answer 2

我相信您看不到屏幕上播放的任何视频，因为您以编程方式创建的图形小部件实际上与 activity 的布局无关。

最快的解决方案可能如下：

通过xml
获取它的引用并使用它来附加视频视图

线性布局 linearLayout = findViewBy(R.id.yourlinearlayoutid)

LayoutParams videoView_LP = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

VideoView videoView = 新 VideoView(RevLibGenConstantine.REV_CONTEXT); videoView.setLayoutParams(videoView_LP);

videoView.setVideoPath(视频路径); videoView.requestFocus(); videoView.start();

linearLayout.addView(videoView);

如何播放本地视频文件

How to play a local Video file

video

android

android-videoview