.h文件里写
- (IBAction)textFieldDoneEditing:(id)sender;
.m文件里写
- (IBAction) textFieldDoneEditing:(id)sender{
[sender resignFirstResponder];
}
完成以后,在IB里调用一下Round Rect Button按键到View里,并在Layout-->Sned to Back将此按钮设置到最下层并全屏。将此按钮的Did End On Exit指向 这个方法就可以了.