Might be necessary if you instantiate the Button at runtime or you need toĭeclare the click behavior in a Fragment subclass. You can also declare the click event handler pragmatically rather than in an XML layout. Define a View as its only parameter (this will be the View that was clicked). The method you declare in the android:onClick attribute must haveĪ signature exactly as shown above. Do something in response to button click ** Called when the user touches the button */ Within the Activity that hosts this layout, the following method handles The Activity hosting the layout must then implement theįor example, here's a layout with a button using android:onClick: The value for this attribute must be the name of the method you want to call in response To define the click event handler for a button, add the android:onClick attribute to the element in your XML When the user clicks a button, the Button object receives
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