Animation in Android is a best way to give a valuable UI in any application. So today i am going to how to implement Android rich path animator which can draw as you want animate much as you can.

What is Android Rich Path Animator?

This library define in simple three line:

? Rich Android Path.

 Draw as you want.

? Animate much as you can.

That line is sufficient to tell much more about Android Rich Path Animator and now we dive in implementation of this library.

You should see : Comparison of All Android Image Loading Library

Features

Full Animation Control on Paths and VectorDrawables:

Animate any attribute in a specific path in the VectorDrawable:

• fillColor
• strokeColor
• strokeAlpha
• fillAlpha
• size
• width
• height
• scale
• scaleX
• scaleY
• rotation
• translationX
• translationY
• trimPathStart
• trimPathEnd
• trimPathOffset

Download

Path morphing on API +11 : ?

RichPathAnimator.animate(richPath)
       .pathData(pathData1, pathData2, ...)
       .start();

Do you ever use this : GravityView – Sensor Based Android Library

Just 3 Steps to Animate any path

In your layout.

<com.richpath.RichPathView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:vector="@drawable/vector_drawable" />

Find your richPath

// by path name
RichPath richPath = richPathView.findRichPathByName("path_name");
// or if it contains one path
RichPath richPath = richPathView.findFirstRichPath();
// or by index
RichPath richPath = richPathView.findRichPathByIndex(0);

Use the RichPathAnimator to animate your richPath

RichPathAnimator.animate(richPath)
       .trimPathEnd(value1, value2, ...)
       .fillColor(value1, value2, ...)
       .start();

Example

Notification icon vector drawable

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="32dp"
    android:height="32dp"
    android:viewportHeight="32.0"
    android:viewportWidth="32.0">

    <group
        android:pivotX="16"
        android:pivotY="6.25">
        <path
            android:name="top"
            android:fillColor="#FFF7F7F7"
            android:pathData="M22,19.8v-5c0-3.1-1.6-5.6-4.5-6.3V7.8c0-0.8-0.7-1.5-1.5-1.5s-1.5,0.7-1.5,1.5v0.7c-2.9,0.7-4.5,3.2-4.5,6.3v5l-2,2v1h16v-1L22,19.8z" />

        <path
            android:name="bottom"
            android:fillColor="#FFF7F7F7"
            android:pathData="M16,25.8c1.1,0,2-0.9,2-2h-4C14,24.9,14.9,25.8,16,25.8z" />
    </group>
</vector>
</vector>

Recommended article : ImageZipper – Android Image Compression Library

XML

<com.richpath.RichPathView
       android:id="@+id/ic_notifications"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       app:vector="@drawable/ic_notifications" />

Java

RichPath top = notificationsRichPathView.findRichPathByName("top");
RichPath bottom = notificationsRichPathView.findRichPathByName("bottom");

RichPathAnimator.animate(top)
        .interpolator(new DecelerateInterpolator())
        .rotation(0, 20, -20, 10, -10, 5, -5, 2, -2, 0)
        .duration(4000)
        .andAnimate(bottom)
        .interpolator(new DecelerateInterpolator())
        .rotation(0, 10, -10, 5, -5, 2, -2, 0)
        .startDelay(50)
        .duration(4000)
        .start();

Installation

Add the following dependency to your module build.gradle file:

dependencies {
  ...
  compile 'com.github.tarek360.RichPath:animator:0.0.9'
}

Add this to your root build.gradle file (not your module build.gradle file) :

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

See this also : How Android Image Loading Library Works?

More Control by the RichPathAnimator

Animate multiple paths sequentially or at the same time

RichPathAnimator
       .animate(richPath1, richPath2)
       .rotation(value1, value2, ...)

       //Animate the same path or another with different animated attributes.
       .andAnimate(richPath3)
       .scale(value1, value2, ...)

       //Animate after the end of the last animation.
       .thenAnimate(richPath4)
       .strokeColor(value1, value2, ...)

       // start your animation ?
       .start();

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