I've a Drawable xml file (background.xml):
<?xml version="1.0" encoding="UTF-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <shape> ........... </shape> </item> <item android:id="@+id/shape_id"> <shape android:shape="rectangle"> <solid android:color="#ffefefef" /> </shape> </item> </layer-list>
used by a LinearLayout:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:background="@drawable/background" android:id="@+id/layout_id" >
Now i need to change the shape shape_id
solid color at runtime based on some conditions. How to do this?
This example demonstrates how to change the colors of a Drawable in Android. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main. xml.
Use app:drawableTint="@color/yourColor" in the xml instade android:drawableTint="@color/yourColor" . It has the backward compatibility.
With the shape still selected, click the Fill Color button. Select a color for the background. You can enter the Hex or RGB values. Use the slider underneath the color selection to change the background opacity.
Found by me:
View v = findViewById(R.id.layout_id); LayerDrawable bgDrawable = (LayerDrawable)v.getBackground(); final GradientDrawable shape = (GradientDrawable) bgDrawable.findDrawableByLayerId(R.id.shape_id); shape.setColor(----);
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