setBothDrawables=true renders black background on API 19

Here is my current configuration:

<me.zhanghai.android.materialprogressbar.MaterialProgressBar
        style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal.NoPadding"
        android:id="@+id/cardProgressBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:progress="10"
        android:secondaryProgress="20"
        android:max="100"
        app:mpb_progressStyle="horizontal"
        app:mpb_useIntrinsicPadding="false"
        app:mpb_setBothDrawables="true"
        app:mpb_showProgressBackground="true"/>

On API 19, it renders as follows:

And on API 24, it renders as expected:

When just using either indeterminate or determinate mode, everything renders as expected. Only when mpb_setBothDrawables is true, it renders black on 19.

[zhanghai]

Found out it’s a bug of ColorFilter with alpha in color which is resulting in the black, and it can be workarounded by turning on software layer rendering. Released in v1.4.2.

[rdadkins]

Works as expected, thank you for updating!