I am trying to create a custom-styled seekbar. I have two nine-patch images one is a gray stretching bar search_progress.9.png (background color) and the other is a green stretching bar search_progress_bar.9.png (foreground color).
I use this xml as my seekbar's progressDrawable:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background" android:drawable="@drawable/search_progress"></item>
<item android:id="@android:id/progress" android:drawable="@drawable/search_progress_bar"></item>
</layer-list>
My problem is that, instead of the bar filling up to my thumb position, the entire bar is green all the time (search_progress_bar image). How can I get the same effect as Android's progress_horizontal.xml with my own images (I do not want to use shapes to draw my bar)?
e_x_p's version works just fine but the even simpler version is
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="@android:id/background">
<nine-patch android:src="@drawable/progressbar_bg" android:dither="true"/>
</item>
<item android:id="@android:id/progress">
<clip xmlns:android="http://schemas.android.com/apk/res/android"
android:clipOrientation="horizontal"
android:gravity="left">
<nine-patch android:src="@drawable/progressbar_status" android:dither="true"/>
</clip>
</item>
</layer-list>
I solved this problem using a ClipDrawable. This is what worked for me:
Set @drawable/search_progress_drawable as the progressDrawable.
search_progress_drawable.xml:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background" android:drawable="@drawable/search_progress"></item>
<item android:id="@android:id/progress" android:drawable="@drawable/search_progress_clip"></item>
</layer-list>
search_progress_clip.xml:
<?xml version="1.0" encoding="utf-8"?>
<clip xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/search_progress_bar"
android:clipOrientation="horizontal"
android:gravity="left">
</clip>
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