android - Programmatically change color of shape in layer list

Question

How can I programmatically change the color (#000000) of a shape in a layer list?

Here is my layer list:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#000000" /> // CHANGE THIS COLOR
        </shape>
    </item>
    <item android:left="5dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/bg" />
        </shape>
    </item>
</layer-list>

question from:https://stackoverflow.com/questions/32163918/programmatically-change-color-of-shape-in-layer-list

Answer 1

First of all you need to assign id to you layer-list item.

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- First assign id to the list item-->
    <item  android:id="@+id/your_shape">  
        <shape android:shape="rectangle">
            <solid android:color="#000000" /> 
        </shape>
    </item>
    <item android:left="5dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/bg" />
        </shape>
    </item>
</layer-list>

Then get your shape by id.

LayerDrawable shape = (LayerDrawable) getResources().getDrawable(R.drawable.your_shape)

And you can change the color of your shape by calling

shape.setColor(Color.Black); // changing to black color

EDIT

As getDrawable() has been deprecated. Use the following line of code.

LayerDrawable shape = (LayerDrawable) ContextCompat.getDrawable(YourActivity.this,R.drawable.your_shape)