The selector is set on the background attribute of the button. We set the above drawable selector file on our button in the activity_main.xml as:

Keeping it at the top would not allow the other two item tags to get executed ever. It’s important that we keep it at the last. Whenever the condition matches, it sets the relevant things on the button and stops processing the next item tags. It checks every condition from top to bottom. The selector tag behaves like an if - else if statement to an extent. In the above code, each of the states is represented using item tag. The following selector file btn_bg_selector.xml contains the code for setting different background colors on a button for different states. Selector for different background colors. The colors are defined in the colors.xml file : A selector can be an xml file created inside the drawable folder. We’ll be looking at each of the drawable files one at a time. Let’s get started with the implementation of each of these in a new Android Studio Project. For each of the states of the selector, we can set a different drawable/color/shape on our button. Typically for a button, there are just three important states: normal, pressed and enabled. state_selected is meant to select the view. State_focused is when you hover over the widget. What are drawable states? Each of the following events of a view (Button or any other kind of view) are a type of state: Android Button DesignĪ selector is used to define a different behaviour for different states of the Button. We’ll be setting selectors and shapes on our buttons in xml. If you aren’t aware of Android Buttons, check out this tutorial before proceeding.

In this tutorial, we’ll be customizing the Buttons in our Android Application.

Code red button png