The movie viewer can be used by third party applications. These applications can launch the movie viewer application directly, and pass in a video file. In order to launch a video the application can pass the location of the file they wish to open. This video must be saved locally on the device.
Applications broadcast Intent.ACTION_VIEW with the file’s URI and Mime type.
File movie =
new File(Environment.getExternalStorageDirectory(), "movie.mp4");
String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(
MimeTypeMap.getFileExtensionFromUrl(file.toURI().toString()));
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setDataAndType(Uri.fromFile(file), mimeType);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent)