How to draw a circle inside a circle using Android xml shapes?
android, android-drawable, android-shape, java
Solution
The only way I've gotten this to work is to define a transparent stroke for the inner (i.e., top) circle that's the difference between the size of the larger and smaller circle.
For example, this:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Larger blue circle in back -->
<item>
<shape android:shape="oval">
<solid android:color="#00f"/>
<size
android:width="15dp"
android:height="15dp"/>
</shape>
</item>
<!-- Smaller red circle in front -->
<item>
<shape android:shape="oval">
<!-- transparent stroke = larger_circle_size - smaller_circle_size -->
<stroke android:color="@android:color/transparent"
android:width="5dp"/>
<solid android:color="#f00"/>
<size
android:width="10dp"
android:height="10dp"/>
</shape>
</item>
</layer-list>
...looks like this:
Problem
I'm trying to make a thumb for a seekbar for my app, and I want to have an inner circle surrounded by a different, larger (semi-transparent) outer circle. I'm trying to use `layer-list`, but I'm having issues. Below is my code... ``` <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <shape android:shape="oval" > <solid android:color="#00f" /> <size android:height="15dp" android:width="15dp" /> </shape> </item> <item> <shape android:shape="oval" > <solid android:color="#f00" /> <size android:height="10dp" android:width="10dp" /> </shape> </item> </layer-list> ``` I would expect to see a small red circle on top of a larger blue circle, but all I'm seeing is the small red circle. Does anyone have any ideas?