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Android AlertDialog Example

android alert dialog

Android AlertDialog can be used to display the dialog message with OK and Cancel buttons. It can be used to interrupt and ask the user about his/her choice to continue or discontinue.

Android AlertDialog is composed of three regions: title, content area and action buttons.

Android AlertDialog is the subclass of Dialog class.

Methods of AlertDialog class

public AlertDialog.Builder setTitle(CharSequence)This method is used to set the title of AlertDialog.
public AlertDialog.Builder setMessage(CharSequence)This method is used to set the message for AlertDialog.
public AlertDialog.Builder setIcon(int)This method is used to set the icon over AlertDialog.

Android AlertDialog Example

Let's see a simple example of android alert dialog.


You can have multiple components, here we are having only a textview.

File: activity_main.xml


Optionally, you can store the dialog message and title in the strings.xml file.

File: strings.xml

Activity class

Let's write the code to create and show the AlertDialog.



android alert dialog example output 1 android alert dialog example output 2
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