How to use AlertDialog in Flutter | Flutter AlertDialog | Implement Alert Dialog Flutter | #10

Flutter AlertDialog An alert dialog informs the user about situations that require acknowledgement. An alert dialog has an optional title and an optional list of actions. The title is displayed above the content and the actions are displayed below the content.

If the content is too large to fit on the screen vertically, the dialog will display the title and the actions and let the content overflow, which is rarely desired. Consider using a scrolling widget for content, such as SingleChildScrollView, to avoid overflow. (However, be aware that since AlertDialog tries to size itself using the intrinsic dimensions of its children, widgets such as ListView, GridView, and CustomScrollView, which use lazy viewports, will not work. If this is a problem, consider using Dialog directly.)

For dialogs that offer the user a choice between several options, consider using a SimpleDialog.

Typically passed as the child widget to showDialog, which displays the dialog.

Flutter – Dialogs

The dialog is a type of widget which comes on the window or the screen which contains any critical information or can ask for any decision. When a dialog box is popped up all the other functions get disabled until you close the dialog box or provide an answer. We use a dialog box for a different type of condition such as an alert notification, or simple notification in which different options are shown, or we can also make a dialog box that can be used as a tab for showing the dialog box.

Types of dialogs in a flutter

AlertDialog

SimpleDialog

showDialog

AlertDialog

Alert dialog tells the user about any condition that requires any recognition. The alert dialog contains an optional title and an optional list of actions.  We have different no of actions as our requirements. Sometimes the content is too large compared to the screen size so for resolving this problem we may have to use the expanded class.

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