只支持iOS10.3以上的系統(tǒng)

image

也可以在info.plist文件右鍵查看xml格式,直接復(fù)制Demo中的info.plist節(jié)點(diǎn)

image

注意點(diǎn):默認(rèn)添加的Icon files(iOS 5)鍵是沒有CFBundleAlternateIcons的! 需要手動(dòng)寫進(jìn)去!

UIVIewController+Present.m分類

+ (void)load {

    staticdispatch_once_tonceToken;

    dispatch_once(&onceToken, ^{

        MethodpresentM =class_getInstanceMethod(self.class,@selector(presentViewController:animated:completion:));

        MethodpresentSwizzlingM =class_getInstanceMethod(self.class,@selector(dy_presentViewController:animated:completion:));

        method_exchangeImplementations(presentM, presentSwizzlingM);

    });

}

- (void)dy_presentViewController:(UIViewController*)viewControllerToPresent animated:(BOOL)flag completion:(void(^)(void))completion {

    if([viewControllerToPresentisKindOfClass:[UIAlertControllerclass]]) {

        NSLog(@"title : %@",((UIAlertController*)viewControllerToPresent).title);

        NSLog(@"message : %@",((UIAlertController*)viewControllerToPresent).message);

        UIAlertController*alertController = (UIAlertController*)viewControllerToPresent;

        if(alertController.title==nil&& alertController.message==nil) {

            return;

        }else{

            [selfdy_presentViewController:viewControllerToPresentanimated:flagcompletion:completion];

            return;

        }

    }

    [selfdy_presentViewController:viewControllerToPresentanimated:flagcompletion:completion];

}

導(dǎo)入分類后,直接調(diào)用

 privatelazyvarweather = ["晴","多云","小雨","大雨","雪"]

    overridefuncviewDidLoad() {

        super.viewDidLoad()

    }

    @IBActionfuncbtnAction(_sender:Any) {

        letweatherRdm =weather[Int(arc4random()) % (weather.countasInt)]

        setAppIconWithName(iconName: weatherRdm)

    }

    funcsetAppIconWithName(iconName:String)  {

        if#available(iOS10.3, *) {

            if !UIApplication.shared.supportsAlternateIcons {

                return

            }

            ificonName ==""{

                return

            }

            UIApplication.shared.setAlternateIconName(iconName) { (error)in

                iferror !=nil{

                }

            }

        }else{

        }

    }

完結(jié).