当页面有键盘弹出，长按列表的其中一个Item，弹出菜单对话框，当前页面edittext会失去焦点 输入法隐藏，导致菜单弹出的对话框和长按的位置不一致bug

[q197585312]

I/flutter (11750): addListener:hasFocus:true W/InputMethodManager(11750): startInputReason = 3 W/HwRemoteInputMethodManager(11750): isCasting false because IHwDistributedWindowManager is invalid. I/InputMethodManager(11750): showSoftInput I/HwViewRootImpl(11750): removeInvalidNode all the node in jank list is out of time I/flutter (11750): addListener:hasFocus:false I/HwViewRootImpl(11750): removeInvalidNode all the node in jank list is out of time