How can I use BitmapRegionDecoder code in android 2.2.2 (Froyo)?

Question

I was reading an answer to a different question on SO, in which @RomainGuy commented that one could (please correct me if I\'m paraphrasing incorrectly) back-port code from

Answer 1

You should consider BitmapRegionDecoderCompat, an API 8+ version of the standard BitmapRegionDecoder (API 10+).

Features

• It operates in "compat" mode on devices running API < 10 using a basic Java/Android fallback (which means it won't be as efficient/fast as the native JNI implementation of API 10+, but it will avoid ugly boilerplates and manual fallbacks).
• It uses the native JNI implementation when running on API 10+.
• It adds extra usuful methods like decodeBestRegion(), which extracts the "best" image subregion given your parameters (gravity, size). This method also works on API < 10.

Download

In order to use it in your project you can manually download and add the library as an AAR file:

or you can add the dependecy in your build.gradle (requires jCenter repository):

dependencies {
    //...your dependecies
    compile 'org.bonnyfone:brdcompat:0.1'
}

Usage

As stated in the docs, in order to migrate to BRDCompat you just need to change the base class name from BitmapRegionDecoder to BitmapRegionDecoderCompat:

//BitmapRegionDecoder brd = BitmapRegionDecoder.newInstance(...);
BitmapRegionDecoderCompat brd = BitmapRegionDecoderCompat.newInstance(...);