Android Tutorial

Android transition interpolators are used to add animation effect when you scale, move, rotate or fade in / out view object or a group of view objects ( a scene ). This example will show you all the interpolator effect when move a button from left to right horizontally.

Android transition framework is provided since android version 4.4 KitKat. And the min SDK version is 23. With this framework, you can implement animation to the android app’s view objects easily. This example will tell you how to use it to make change bounds animation with bounce effect in your android app.

Pinch zoom ( in or out ) is an often-used gesture in android applications. It is very user-friendly and smooth to display something bigger or smaller to watch. This example will show you how to implement pinch zoom on an image in the android application.

This example will show you how to capture user gesture as signature and save it to an image in the android emulator. Users just need to write the signature on the screen and click save then a png format image will be created in the SD card of the device. You can use the android

In some cases, you may want to capture custom-defined gestures in your android application. And at the same time, you may also want to detect general gestures ( such as double-tap, long press, scroll, etc) on the special view component. This article will tell you how to combine custom-defined gestures and general gestures together in