BitmapFactory.de codeFILE（）; [英] BitmapFactory.decodeFile();

问题描述

在我的申请，我有一个文件：

In my application, I have a file:

private File TEMP_PHOTO_FILE = new File(Environment.getExternalStorageDirectory(), "temp_photo.jpg");

这是直接宣布在我的课，而且是可见的所有方法中存在

This is declared directly in my class, and is visible to all the methods there in.

我想用这个：

Bitmap thePhoto = BitmapFactory.decodeFile(Uri.fromFile(TEMP_PHOTO_FILE).toString());

Uri.fromFile（TEMP_PHOTO_FILE）的ToString（）生成的字符串：文件：///mnt/sdcard/temp_photo.jpg

Uri.fromFile(TEMP_PHOTO_FILE).toString() generates the string: "file:///mnt/sdcard/temp_photo.jpg"

为什么这个不工作？看来，因为我们正在处理的文件，应该有一个接受URI作为输入德codeFILE（）的某种方法。不允许，这是非常令人沮丧，由于不一致。

Why does this not work? It seems that since we're dealing with a file, there should be some method of decodeFile() that accepts a URI as input. Not allowing that is very frustrating due to the inconsistency.

推荐答案

文件：//不起作用。试试这个：

"file://" doesn't work. Try this:

Bitmap thePhoto = BitmapFactory.decodeFile(TEMP_PHOTO_FILE.getAbsolutePath().toString());

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