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// Full screen width and height
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
// Height (without SafeArea)
var padding = MediaQuery.of(context).viewPadding;
double height1 = height - padding.top - padding.bottom;
// Height (without status bar)
double height2 = height - padding.top;
// Height (without status and toolbar)
double height3 = height - padding.top - kToolbarHeight;