如何显示视频的缩略图?安卓 [英] How to display a thumbnail for a video? Android

问题描述

我正在尝试为我的视频视图显示缩略图，我有一个分层的图像视图，我想放置一个缩略图......我试过这个，但它不工作，不确定以字符串形式传递的 url问题是什么?没有错误，图像只是不显示占位符显示，所以这与我制作位图的方式有关，链接也正确显示了视频.

I am trying to display a thumbnail for my videoview, I have an imageview layered ontop that I want to place a thumbnail... I tried this but it is not working not sure if the url which is being passed as a string is the problem? No errors and the image just does not display the placeholder shows though, so it has to do with either the way I am doing the bitmap, the link also shows the video correctly.

String filePath = ""http://unknown.com/v3-1aox9d1.mp4""; 

ImageView imageview_micro = (ImageView)findViewById(R.id.thumbnail_micro);

Bitmap bmThumbnail;

//MICRO_KIND, size: 96 x 96 thumbnail
bmThumbnail = ThumbnailUtils.createVideoThumbnail(filePath, Thumbnails.MICRO_KIND);
imageview_micro.setImageBitmap(bmThumbnail);

推荐答案

那不是使用 createVideoThumbnail 的方式.

That is not the way to use createVideoThumbnail.

第一个参数应该是指向本地文件的文件路径.您正在使用网址.

The first parameter should be a file path which refers to a local file. You are using a web url.

您必须先下载视频或寻找其他解决方案.

You have to download the video first or have to search for an other solution.

这个答案可能对您有帮助:https://stackoverflow.com/a/23523205/5038873

This answer might help you: https://stackoverflow.com/a/23523205/5038873

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