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Catch common Java mistakes as compile-time errors.

Custom view written in Kotlin to Display a translucent frame with corners as known from cameras. You can set the frame's alpha, the frame size, the length of the lines in the corner, their color and the width of them.

A library for simple implementation of smart ranking. The user will see a dialog every x time. If the user gives a high score, he will be transferred to the Google store. If he gives a low score, he will only receive a thank you toast message.