获取Android文件资源的大小? [英] Get the size of an Android file resource?

问题描述

我的资源的原始文件夹中有一个视频文件.我想找到文件的大小. 我有这段代码:

I have a video file in the raw folder in my resources. I want to find the size of the file. I have this piece of code:

Uri filePath = Uri.parse("android.resource://com.android.FileTransfer/" + R.raw.video);
                File videoFile = new File(filePath.getPath());
                Log.v("LOG", "FILE SIZE "+videoFile.length());

但是它总是让我知道大小为0.我在做什么错了?

But it always gives me that the size is 0. What am I doing wrong?

推荐答案

您不能将File用于资源.使用Resources或AssetManager获取资源的InputStream，然后在其上调用available()方法.

You can't use File for resources. Use Resources or AssetManager to get an InputStream to the resource, then call the available() method on it.

赞:

InputStream is = context.getResources().openRawResource(R.raw.nameOfFile);
int sizeOfInputStram = is.available(); // Get the size of the stream

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