如何在Android中创建视频预览? [英] How to create a video preview in android?

问题描述

我的sdcard中有一个视频文件.我想在我的ImageView中显示此视频的预览.请让我知道如何在Android中执行此操作.谢谢您的帮助和时间.

I have a video file in my sdcard. I would like to show a preview of this video in my ImageView . Please let me know how to do this in Android. Thank you for your help and time.

推荐答案

如果您使用的是API级别8和更高版本.您可以创建如下视频的预览:

If you use API level 8 and above. You can create preview of a video like this:

String videoFile = "/sdcard/blonde.mp4";
Bitmap thumbnail = ThumbnailUtils.createVideoThumbnail(videoFile,
        MediaStore.Images.Thumbnails.MINI_KIND);

现在您可以在ImageView中显示它:

Now you can show it in an ImageView:

ImageView imageView = (ImageView) findViewById(R.id.my_image_view);
imageView.setImageBitmap(thumbnail);

或者您可以将其设置为VideoView作为背景，以便在视频开始播放之前将其显示为第一个视频帧:

Or you can set it to a VideoView as a background, so that it is shown as a first video frame before the video starts playing:

VideoView video = (VideoView) findViewById(R.id.my_video_view);
BitmapDrawable bitmapDrawable = new BitmapDrawable(thumbnail);
video.setBackgroundDrawable(bitmapDrawable);

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