Android custom background xml send attribute

Question

I have the following xml file:

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <corners android:radius="10dp"/>
    <padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" /> 
</shape>

as you can see, all it is, is a shape with rounded corners. I use it for background in activity layouts as follows:

android:background="@drawable/rounded_corners"

The shape in the file is currently set to white. In different layouts I need different colors. Do I need to create a different shape xml file for each color? I need a way to just specify in the layout what color to send to the background, and that way I can use the same xml for any color I want.

Thanks.

This might be what you are looking for: http://stackoverflow.com/questions/11376516/change-drawable-color-programmatically — TronicZomB, May 31 '13 at 12:27
I am looking for a way to set it via the xml. Something like background="red" src="drawable.." — Meir, May 31 '13 at 12:30
In that case, I do not believe this to be possible and you will need multiple shapes. Though I could be wrong, in which case I would like to know how to do this too :) — TronicZomB, May 31 '13 at 12:33
My question can also be translated to "Is there a way to *bind* custom attributes to xml?" May something like wpf allows — Meir, May 31 '13 at 12:38
Is it possible that I can use attrs.xml for that? Or is that only for custom components? — Meir, Jun 02 '13 at 06:41

Mehul Joisar · Accepted Answer · 2013-05-31T13:20:34.923

Do I need to create a different shape xml file for each color?

Yes,If you want to apply different color for different layout files from the layout's xml file itself
No,If you apply different color for different layout files from its java (Activity) file.

Solution for option 2:

//shape drawable (rounded_corners.xml)

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <corners android:radius="10dp"/>
    <padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" /> 
</shape>

//layout file

        <Button 
            android:id="@+id/mButton"
            ...
            android:background="@drawable/rounded_corners"
            />

//java (Activity) file

Button mButton = (Button) findViewById(R.id.mButton); 
ShapeDrawable rounded_corners = (ShapeDrawable )mButton.getBackground();
rounded_corners.getPaint().setColor(Color.RED);

I hope it will be helpful !!

Android custom background xml send attribute

1 Answers1