My app's minimum API-level is 19 (KitKat), and contains a layout with a horizontal ProgressBar
. I'm using android:progressTint
attribute to tint the bar to a custom color. It works pretty well on Lollipop (API 21) and above, but below (for example on API 19) it doesn't; it shows up in a different color. The reason is that this attribute
is only used in API level 21 and higher
as Android Studio states.
So I'm wondering what can be a good alternative for tinting the ProgressBar
on pre-Lollipop devices, too. Can it be made inside the layout file with XML? Or should this be done on a different way?
EDIT #1: My ProgressBar is used to show concrete values in percents, not for indicating that my layout is loading. I want to make this clear because after trying what Kuldeep Kulkarni wrote below, my bar looked like a material loading indicator (of course on the Lollipop device, not any visible result on KitKat device).
Thanks for the suggestions from everyone! :)
The solution which works for me is to create a custom drawable XML file with the <layer-list>
root element. There, I'm defining two layer items with the native Android IDs @android:id/background
and @android:id/progress
. After this, I can define the shapes and color resources I would like to use. This solution is similar to a more popular answer on this SO question.
Content of my res/drawable/progressbar.xml
file:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<corners android:radius="2dip" /> <!--optional-->
<gradient
android:angle="270"
android:endColor="@color/gray"
android:startColor="@color/gray" />
</shape>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="2dip" /> <!--optional-->
<gradient
android:angle="270"
android:endColor="@color/blue"
android:startColor="@color/blue" />
</shape>
</clip>
</item>
</layer-list>
Defined as progressDrawable
for my ProgressBar
in the layout XML file:
<ProgressBar
android:id="@+id/progress_bar"
android:layout_width="0dp"
android:layout_height="@dimen/progress_bar_height"
android:progressDrawable="@drawable/progressbar" />
I didn't have a chance to test it below API 19, but on this level and above it works perfectly.