Material design ProgressBar with consistent appearance on Android 4.0+.

Android 4.4.4

Samsung Android 5.0.1 (native implementation fails to tint)

Android 5.1.1

Library AAR

Sample application APK

Three material design Drawables are backported to Android 4.0 (API 14), so you can create one and set it directly on your ProgressBar.

• HorizontalProgressDrawable
• IndeterminateHorizontalProgressDrawable
• IndeterminateProgressDrawable

For example, to set a HorizontalIndeterminateProgressDrawable on a ProgressBar.

progressBar.setIndeterminateDrawable(new HorizontalIndeterminateProgressDrawable(this));

In order to make your ProgressBar take the correct and consistent size on all versions, you need to use one of the styles this library provided. The trick inside it is android:minHeight, android:maxHeight (and width) that controls the Drawable size.

• Widget.MaterialProgressBar.ProgressBar.Horizontal
• Widget.MaterialProgressBar.ProgressBar
• And more size and no-padding variants in styles.xml

For example, to define an indeterminate horizontal ProgressBar.

<ProgressBar
            android:id="@+id/indeterminate_horizontal_progress"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:indeterminate="true"
            style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal" />

Don't forget to create and set the Drawable as above.

You can also customize the behavior of these Drawables by calling setShowTrack() and setUseIntrinsicPadding(). Tint-related methods setTint(), setTintList() and setTintMode() are also backported so that you can use them directly.

For a detailed example, you can refer to the onCreate() method of the sample's MainActivity and its layout main_activity.xml.

Neither Support v4 nor AppCompat v7 backported animation API to versions prior tot ICS, and the NineOldAndroids library has already been deprecated since people should all be using minSdkVersion="14" now, so versions older than ICS are not supported.

Copyright 2015 Zhang Hai

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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