What is Button in Android Example Code

In Android, a Button is a user interface (UI) element that allows the user to interact with the app by tapping the button. It is a subclass of the TextView class and is used to display a button with a text label. You can use a Button to perform an action when the user taps it, such as starting a new activity or sending a request to a server.

Adding Button in Android Example

Here is an example of how you can use a Button in your layout XML file:

You can also set the text and other properties of the button programmatically in your Java or Kotlin code by using the setText and other methods of the Button object.

You can set an OnClickListener on the Button object to specify an action to be taken when the button is clicked.

You can customize the appearance of a Button by setting various properties, such as the text color, background color, and font size.

Button View Attributes:

There are several attributes that you can use to customize the appearance and behavior of a Button in Android. Here are some of the most commonly used attributes:

  • android:text: The text to display on the button.
  • android:textColor: The color of the text.
  • android:textSize: The size of the text.
  • android:textStyle: The style of the text (bold, italic, etc.).
  • android:background: The background drawable or color of the button.
  • android:enabled: Whether the button is enabled or disabled.
  • android:visibility: Whether the button is visible or hidden.
  • android:onClick: The name of a method in the activity or fragment to be called when the button is clicked.

Note that you can also set these attributes programmatically in your Java or Kotlin code using the corresponding methods of the Button object. For example, you can use the setText method to set the text of the button, or the setEnabled method to enable or disable the button.

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