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Step 3 − Add the following code to src/MainActivity.java package Step 2 − Add the following code to res/layout/activity_main.xml.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. This example demonstrate about how to implement android alert dialog. GetListView() − it is used to get a list view which is used inside alert dialog. SetButton(int whichButton, CharSequence text, Message msg) − It is used to set button for alert dialog as shown below example. SetIcon(int resId) − it is used to set icon for alert box SetMessage(CharSequence message) − It is simple call as content in alert box SetTitle(CharSequence title) − It is used to set title to alert dialog SetView(View view) − It used to set custom view to alert dialog Before getting into alert dialog, we should know about what is alert dialog, Alert dialog is just like a pop-up where user can choose action by clicking "ok" or "cancel" button.