//隐藏键盘 当前视图上有多个uitextfield
for(UIView *view in [self.view subviews])
{
if(view is kindofclass:[UITextField Class])
{
[view resignfirstrespond];
}
}
//直接用
[self.view endEditing:NO]
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];






