CODEWITHSUNDEEP
androidxml
Zvi
Zvi

Reputation: 2424

How to reuse drawable

I have a number of background drawables that the only different is the color of the border or the color of the background.

Is there a way to define a general drawable and then add (or change) the attribute I need.

For example here is a rectangular drawable

XML file

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"

    android:shape="rectangle" >
    <corners android:radius="@dimen/radius_small"/>
    <solid android:color="@color/simple_black" />
    <stroke android:width="2dip" android:color="@color/simple_white" />
    <padding
        android:left="@dimen/two_dp"
        android:right="@dimen/two_dp"/>
</shape>

and I would like to change the solid color or the stroke color, and not to create a separate drawable for each one.

Upvotes: 3

Views: 1734

Answers (1)

Ari
Ari

Reputation: 3086

This assumes that you want to do it programatically. If all you need is to change the background and/or stroke color, here is how you can do it:

  1. Obtain a reference to the shape 

     GradientDrawable drawable = (GradientDrawable)context.getResources().getDrawable(R.drawable.shape_id)

  2. To change color 

     drawable.setColor(Color.RED)

  3. To change stroke color and width (notice that you can only change both of them together, so I recommend keeping a variable with the stroke's width in px)

    drawable.setStroke(Util.dpToPx(context, 2), Color.YELLOW)

Upvotes: 2

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