Android Hidden API

Android Hidden API is a modified jar file which combining android.jar from Android SDK with framework.jar from real device. This jar makes you able to use Android internal/hidden APIs in development.

What is Android internal and hidden APIs? Internal API is located in com.android.internal package which available in the framework.jar file from real Android device, while hidden API is located in android.jar file with @hide javadoc attribute. Although the classes & methods are public, but you cannot access it. There are pretty methods and resources you can use from this package. I will assume this is one API and will refer to it as to hidden API. Learn more about hidden API here.

What's the advantage? You don't need to create new classes, constants, methods or resources which you want to use the similar function in your project. For example, if you want to create a new String resource that contains 'day' word. Then you create a new translation to other language, e.g. Arabic, Indonesian, even with all languages in this world. This is too exhausting and waste your time. Why don't use com.android.internal.R.string.durationDayHour which already available from Custom Android framework.jar?

#Usage

1. Close your Android Studio.
2. Go to <SDK location>/platforms/.
3. Copy, paste and replace the downloaded file into this directory, e.g. android-21. Note: I already make a backup that located in original folder.
4. Open Android Studio, change compileSdkVersion and targetSdkVersion to 21 (for example).
5. Finally, rebuild your project.

Note: Higher compileSdkVersion and targetSdkVersion version will be better.

LIMITATION

Currently, Android Hidden API is not available for Lollipop 5.1.1 and Marshmallow 6.0, because of I can't find any people who has this device. If you have it, please upload framework.jar file from real device that located in /system/framework/framework.jar to me. I will make a new!