设备切换方向报错

[chentianxin]

设备从竖屏切换至横屏报错

Another exception was thrown: RenderBox.size accessed beyond the scope of resize, layout, or permitted parent access. RenderBox can always access its own size, otherwise, the only object that is allowed to read RenderBox.size is its parent, if they have said they will. It you hit this assert trying to access a child's size, pass "parentUsesSize: true" to that child's layout().

════════ Exception caught by rendering library ═════════════════════════════════
RenderBox.size accessed beyond the scope of resize, layout, or permitted parent access. RenderBox can always access its own size, otherwise, the only object that is allowed to read RenderBox.size is its parent, if they have said they will. It you hit this assert trying to access a child's size, pass "parentUsesSize: true" to that child's layout().
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1709 pos 13: 'debugDoingThisResize || debugDoingThisLayout ||
              (RenderObject.debugActiveLayout == parent && _size._canBeUsedByParent)'
The relevant error-causing widget was
    FRefresh