//利用transfrom改变做动画
- (void)keyboardWillChangeFrame:(NSNotification*)note
{
CGFloatduration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey]doubleValue];
[UIViewanimateWithDuration:durationanimations:^{
CGFloatty = [note.userInfo[UIKeyboardFrameEndUserInfoKey]CGRectValue].origin.y-YDYScreenH;
self.toolbar.transform=CGAffineTransformMakeTranslation(0, ty);
}];
}
//利用约束改变做动画
- (IBAction)registerBtnClick:(UIButton*)sender {
if(self.leftConstant.constant==0) {
self.leftConstant.constant= -self.view.frame.size.width;
[self.registerBtnsetTitle:@"已有帐号?"forState:UIControlStateNormal];
}else{
self.leftConstant.constant=0;
[self.registerBtnsetTitle:@"注册帐号"forState:UIControlStateNormal];
}
[UIViewanimateWithDuration:0.25animations:^{
[self.viewlayoutIfNeeded];
}];
}
