简单的图片预览和视频播放

private void playVideo(String path) {
    Log.d(TAG, "要播放的视频地址：" + path);
    Intent intent = new Intent(Intent.ACTION_VIEW);
    String type = "video/*";
    Uri uri = Uri.fromFile(new File(path));
    intent.setDataAndType(uri, type);
    startActivity(intent);
}

private void previewImg(String path) {
    Log.d(TAG, "要预览的图片地址：" + path);
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.addCategory(Intent.CATEGORY_DEFAULT);
    Uri uri = Uri.fromFile(new File(path));
    intent.setDataAndType(uri, "image/*");
    startActivity(intent);
}