I've seen some topics about handling colors of ProgressBars but none could answer my doubt.
I am using a horizontal ProgressBar Indeterminate type. I want it to have a transparent background while having a colored progressBar but cannot find a way to do it.
For a normal ProgressBar (not Indeterminate) I can get a LayerDrawable by calling progressBar.getProgressDrawable(). Then using findDrawableByLayerId(android.R.id.background), I am able to tint just the background.
But using progressBar.getIndeterminateDrawable() it returns me a GradientDrawable, so I can't follow the same procedure.
Is it possible to get the colors from a GradientDrawable for all APIs levels? Cause if it is, I could get the color of the background and change it.
Is there any solution for this?
3 Answers
Answers 1
Use color filter like this:
progressBar.getIndeterminateDrawable().setColorFilter(color, PorterDuff.Mode.MULTIPLY); Answers 2
Step #1: Copy drawable/progress_indeterminate_horizontal.xml from your SDK's resources into your project.
Step #2: Copy drawable-hdpi/progressbar_indeterminate* from your SDK's resources into your project.
Step #3: Copy drawable-mdpi/progressbar_indeterminate* from your SDK's resources into your project.
Step #4: Modify the PNG files to look the way you want.
Step #5: Modify the progress_indeterminate_horizontal.xml to point to your PNG files (versus the standard ones).
Step #6: Use @drawable/progress_indeterminate_horizontal for the indeterminateDrawable value.
Else
progressBar.getIndeterminateDrawable() .setColorFilter(progressBar.getContext().getResources().getColor(<colorId>), PorterDuff.Mode.SRC_IN); Answers 3
progressBar.setProgressDrawable(R.drawable.progress_bar);
drawable/progress_bar.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/background"> <shape> <corners android:radius="2dip" /> <gradient android:startColor="#43ffffff" android:centerColor="#43ffffff" android:centerY="0.75" android:endColor="#43ffffff" android:angle="270" /> </shape> </item> <item android:id="@android:id/progress"> <clip> <shape> <corners android:radius="2dip" /> <gradient android:startColor="#fff" android:endColor="#fff" android:angle="270" /> </shape> </clip> </item> </layer-list> you can change color in this progress_bar.xml drawable
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