pngquant with basic Java bindings for Android.

In your build.gradle:

dependencies {
    compile 'com.ndahlquist:pngquant-android:0.2'
}

In your Android app: Optimizing the image with default settings:

File inputPngFile = getYourPng();
File outputPngFile = getOutputFile();
new LibPngQuant().pngQuantFile(inputFile, outputFile);

Alternative commands with more options:

new LibPngQuant().pngQuantFile(inputFile, outputFile, minQuality, maxQuality);

new LibPngQuant().pngQuantFile(inputFile, outputFile, minQuality, maxQuality, speed);

new LibPngQuant().pngQuantFile(inputFile, outputFile, minQuality, maxQuality, speed, floydDitherAmount);

• This project includes git submodules; please make sure to git clone --recursive. Alternatively, git submodule init; git submodule update.
• On OS X, please install wget: brew install wget.
• From the top-level directory, run ./gradlew installDebug. This will download all dependencies, build the library, and install a test application to a connected Android device.