CircularRevealActivityLib

this lib brings android circularreveal activity transition on android4.0+

DemoApk

first of all,you must disable system default activity transition by overridePendingTransition(0, 0) or other method;

You just need 3 steps：

1. add to your app build.gradle

repositories {
    maven {
        url "https://jitpack.io"
    }
}

Gradle

dependencies {
    ...
    compile 'andy.ayaseruri.circularrevealactivity:lib:1.0.0'
    compile 'com.github.ozodrukh:CircularReveal:1.1.1'

}

Maven

<groupId>andy.ayaseruri.circularrevealactivity</groupId>
<artifactId>lib</artifactId>
<version>1.0.0</version>

2. the activity that you want to open with circularreveal effect must extends the CircularRevealActivity and you must use setContentView(View yourView) or setContentView(int yourLayoutId) to set your activity's layout;

3. the activity's theme that you want to open with circularreveal effect must have the following tags:

<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowIsTranslucent">true</item>

how to set circularreveal start point:

there are two methods to set start point:

1. you may use setStartPoint(int x, int y) in CircularRevealActivity,this method must be called before setContentView method;

2. you can also use intent like:

Intent intent = new Intent(MainActivity.this, MyCircularRevealActivity.class);
intent.putExtra("start_point", int[2] clickPoint);
startActivity(intent);
overridePendingTransition(0, 0);

you can use setCircularRevealDuration() to set duration.

Thank to

CircularReveal