将文件对象转换为位图 [英] Convert a File Object to Bitmap

问题描述

我正在使用Universal-Image-Loader，并且具有此功能，可从sd卡访问图像的文件缓存.但是我不知道如何将返回的文件缓存转换为位图.基本上，我只是想将位图分配给ImageView.

I am using Universal-Image-Loader and there is this functionality that access the file cache of the image from sd card. But I don't know how to convert the returned file cache into bitmap. Basically I just wanted to assign the bitmap to an ImageView.

File mSaveBit = imageLoader.getDiscCache().get(easyPuzzle);

Log.d("#ImageValue: ", ""+mSaveBit.toString());
mImageView.setImageBitmap(mSaveBit);

错误:"ImageView类型的setImageBitmap(Bitmap)方法不适用于参数(文件)"

推荐答案

您应该可以使用BitmapFactory:

File mSaveBit; // Your image file
String filePath = mSaveBit.getPath();  
Bitmap bitmap = BitmapFactory.decodeFile(filePath);
mImageView.setImageBitmap(bitmap);

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