This repo is for Android samples, if I see or learn from somewhere, I will try to implement that as a reminder.

You can see result/effect of this sample below.

This demo shows how to use Jni check sign key signature, if we do this, that can prevent our apk from hacking.

This demo shows how to use "software-way" to create blur effect like iOS on Android platform

Before Blur Effect. / After Blur Effect.

This demo shows how to render a pdf file in android and use this App as a pdf viewer.

• Android SDK 24
• Android Build Tools v24.0.1
• Android Support Repository

• Do not upgrade your gradle version to 2.2.0, keep it as 2.1.2
• Do not use big file, cause native render can't handle big file.

• In case someone might wanna edit pdf file, I will recommend MuPDF http://mupdf.com/docs/how-to-build-mupdf-for-android

1.0