The value of android:onClick attribute must be the name of method which we need to call in response to a click event and the Activity file which hosting XML layout must implement the corresponding method.įollowing is the example of defining a CheckBox click event using android:onClick attribute in XML layout file.ĬheckBox chk = (CheckBox) findViewById(R.id. We can define a click event handler for button by adding the android:onClick attribute to the element in our XML layout file. Android spinner is like the drop down menu with multiple values from which the end user can select only o. Define CheckBox Click Event in XML Layout File In this tutorial we will learn how to use Spinner. In android, we can define the CheckBox click event in two ways either in the XML layout file or create it in the Activity file programmatically. Generally, whenever the user clicks on CheckBox to Select or Deselect the CheckBox object will receive an on-click event. This is how we can define CheckBox in XML layout file or programmatically in activity file based on our requirements.

LinearLayout layout = (LinearLayout)findViewById(R.id.

Android studio spinner trigger