A fancy Circular Progress View

CircularProgressView

A fancy CircularProgressView.

Version 1.x

Nov, 2019 - Added "gradient color" (SweepGradient) for progress
Apr, 2019 - Added rounded progress
Jun, 2018 - Added reverse progress
May, 2018 - Added "multiple-arc-progress"
February, 2018 - Background alpha enable/disable
November, 2017 - Progress thumb and animation callback
September, 2017 - CircularProgressView

Getting started

Include it into your project, for example, as a Gradle dependency:

implementation 'com.github.guilhe:circular-progress-view:${LATEST_VERSION}'

Usage

Check out the sample module where you can find a few examples of how to create it by xml or java.

Attributes accepted in xml:

<declare-styleable name="CircularProgressView">
    <attr name="max" format="integer"/>
    <attr name="shadow" format="boolean"/>
    <attr name="progressThumb" format="boolean"/>
    <attr name="startingAngle" format="integer"/>
    <attr name="progress" format="integer"/>
    <attr name="progressBarThickness" format="dimension"/>
    <attr name="progressBarColor" format="color"/>
    <attr name="progressBarColorArray" format="reference"/>    
    <attr name="progressBarColorArrayPositions" format="reference"/>
    <attr name="duplicateFirstColorInArray" format="boolean"/>
    <attr name="progressBarRounded" format="boolean"/>
    <attr name="backgroundColor" format="color"/>
    <attr name="backgroundAlphaEnabled" format="boolean"/>
    <attr name="reverse" format="boolean"/>
</declare-styleable>

Example:

<com.github.guilhe.views.CircularProgressView
    android:layout_width="100dp"
    android:layout_height="100dp"
    app:progress="60"
    app:progressBarThickness="10dp"
    app:progressBarColor="@android:color/holo_purple"/>

@BindingAdapters

You can take advantage of Binding Adapters (from Data Binding) to create some helper attributes, example:

@BindingAdapter("progressAnimated")
fun setProgressAnimated(view: CircularProgressView, progress: Int) {
    view.setProgress(progress, true);
}

<com.github.guilhe.views.CircularProgressView
    ...
    app:progressAnimated="@{viewModel.progress}"/>

Progress with gradient

For the given array of colors:

<array name="rainbow">
    <item>#FFF60000</item>
    <item>#FFFF8C00</item>
    <item>#FFFFEE00</item>
    <item>#FF4DE94C</item>
    <item>#FF3783FF</item>
    <item>#FF4815AA</item>
</array>

The default result will be (left):

To achieve the result on the right side you have two options: either copy the first color and add it as last, or use the helper attribute/method that does that for you:

<attr name="duplicateFirstColorInArray" format="boolean"/>

setProgressColors(@NonNull @ColorInt int[] colors, @Nullable float[] positions, boolean duplicateFirst)

Finally, you may also use the attribute progressBarColorArrayPositions to pass a float[] positions:

<array name="rainbow_positions">
    <item type="dimen" format="float">.44</item>
    ...
 </array>

note: when using the helper function and positions[], you'll have to add an extra position for the last one being copied.

There are many methods to help you customize this View by code. For more details checkout the sample app, javadocs or the code itself.

"Multiple Progress" for PieChart

setProgress(@NonNull List<Float> progressList, @NonNull List<Integer> progressColorList)

This mode can be used to display a simple pie chart. It will disable the progress thumb, the background color and the progress will not be round.

Sample

Animation last update on April, 2019

Binaries

Binaries and dependency information for Gradle, Maven, Ivy and others can be found here.