ios - 这适用于 iOS 7 而不是 iOS 8

Question

按钮在 iOS 8 中变为切换按钮，在 iOS 7 中工作正常。在 iOS 中，更多按钮取代了后退按钮。我在 iOS 中较新。请帮我。

if (isBlurView) {
            moreButton.titleLabel.text=@"Back";
            [moreButton setEnabled:NO];
            [UIView animateWithDuration:0.4 animations:^{
                [blurView setFrame:CGRectMake(0, 65, blurView.frame.size.width,0)];
            } completion:^(BOOL finished) {
                isBlurView=FALSE;
                [blurView setHidden:YES];
                [moreButton setEnabled:YES];
                moreButton.titleLabel.text=@"More";
            }];
        } else {
            [moreButton setEnabled:YES];
            [blurView setHidden:NO];
            moreButton.titleLabel.text=@"Back";
                  [UIView animateWithDuration:0.4 animations:^{

                [blurView setFrame:CGRectMake(0, 65, blurView.frame.size.width,568)];

            }completion:^(BOOL finished) {
                isBlurView=TRUE;
                [moreButton setEnabled:YES];
                moreButton.titleLabel.text=@"Back";
            }];
        }
    }

Answer 1

将文本设置为 UIButton 的正确方法是通过 setTitle:forState: 方法

[moreButton setTitle:@"Back" forState:UIControlStateNormal];