flutter输入框键盘弹起被遮挡问题

/// This flag is deprecated, please use [resizeToAvoidBottomInset]
/// instead.
///
/// Originally the name referred [MediaQueryData.padding]. Now it refers
/// [MediaQueryData.viewInsets], so using [resizeToAvoidBottomInset]
/// should be clearer to readers.
@Deprecated(
  'Use resizeToAvoidBottomInset to specify if the body should resize when the keyboard appears. '
  'This feature was deprecated after v1.1.9.'
)
final bool resizeToAvoidBottomPadding;

/// If true the [body] and the scaffold's floating widgets should size
/// themselves to avoid the onscreen keyboard whose height is defined by the
/// ambient [MediaQuery]'s [MediaQueryData.viewInsets] `bottom` property.
///
/// For example, if there is an onscreen keyboard displayed above the
/// scaffold, the body can be resized to avoid overlapping the keyboard, which
/// prevents widgets inside the body from being obscured by the keyboard.
///
/// Defaults to true.
final bool resizeToAvoidBottomInset;