Custom SeekBar Drawable Android

Question

I want to personalise the default Android seekbar to:

I read about nine patch image and created 6 png images. The first three are for the gray progress bar (progressDrawable), as shown below:

1. Right image

   

2. Center image

   

3. Left image

   

The result should be:

The blue images represent the progress and are as follows:

1. Right image

   

2. Center image

   

3. Left image

   

And the thumb is as follows:

My question is, how can I use nine patch image to generate the custom seekbar exactly as the first picture and how can I apply this to my seekbar?

Answer 1

I think it shouldn't be complex. You don't have to make 6 images to fulfill your needs. Just create 2 nine-patches for background, progress. And thumb.png. Here is your XML:

<SeekBar
  android:id="@+id/my_seekbar"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:progressDrawable="@drawable/seekbar_progress"
  android:thumb="@drawable/thumb">

in your seekbar_progress:

 <?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>

Do remember that your thumb should have blank space on top when creating so it looks like you wanted. Hope this helps.