Linear Timer is a custom view for Android that enables circular progress animation with respect to given duration.

Setup is pretty straight forward. In your root 'build.gradle' add the following -

allprojects {
  repositories {
      jcenter()
      maven { url "https://jitpack.io" }
  }
}

And, in your app 'build.gradle' add this -

 compile 'com.github.krtkush:LinearTimer:v1.0.0'

under dependencies.

First, you need the following view in your layout XML -

xmlns:timer="http://schemas.android.com/apk/res-auto"
  
<io.github.krtkush.lineartimer.LinearTimerView
  android:id="@+id/linearTimer"
  android:layout_centerInParent="true"
  android:layout_width="120dp"
  android:layout_height="120dp"
  timer:radius="20dp"
  timer:strokeWidth="3dp"
  timer:startingPoint="270"
  timer:preFillPoint="0" />

Here is a list of attributes available to toggle the LinearTimer's basic style -

1. radius - The radius of the circle.
2. strokeWidth - the thickness of the circle boundary.
3. startingPoint88 - The angle from where, in the timer, you want the animation to start. 270 is the 12 O'Clock position.
4. preFillPoint - The angle up-till which you want the circle to be pre-filled.
5. initialColor - The initial color of the circle.
6. progressColor - The color of the prgress arc that animates over the initial color.

After adding the view, here is how the View is initiaized and used -

 LinearTimerView linearTimerView = (LinearTimerView) findViewById(R.id.linearTimer);
 LinearTimer linearTimer = new LinearTimer(linearTimerView);
 
 linearTimer.startTimer(360, 60 * 1000);

Any kind of contribution will be appreciated; feel free to create a pull request or file issues on the issue tracker. If you'd like to contact me, you can reach me at kartikey92[at]gmail.com.