Full-screen dialog

This Android 7 user interface sample shows Material Design full-screen dialog.
"Dialogs inform users about a specific task and may contain critical information, require decisions, or involve multiple tasks.
Dialogs contain text and UI controls. They retain focus until dismissed or a required action has been taken. Use dialogs sparingly because they are interruptive. ...
Dialogs should never be obscured, either by other elements or the screen edge. Dialogs always retain focus until dismissed or a required action has been taken. ...
Full-screen dialogs are best suited to complex tasks, or require an input method editor, as they group a series of tasks together before they can be saved." [material.io/ guidelines/ components/ dialogs.html]
The Android 7 UI design example "Full-screen dialog" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the "Android user interface" solution from the "Software Development" area of ConceptDraw Solution Park.