JSJP_School/LN_School/RQAlertController.m

//
//  RQAlertController.m
//  LN_School
//
//  Created by 张嵘 on 2018/10/12.
//  Copyright © 2018 Danson. All rights reserved.
//

#import "RQAlertController.h"

@interface RQAlertController ()

@end

@implementation RQAlertController

+ (void)showAlertAtViewController:(nonnull UIViewController *)viewController
						WithTitle:(nullable NSString *)title
						  message:(nullable NSString *)message
			 alertControllerStyle:(UIAlertControllerStyle)alertControllerStyle
				cancelButtonTitle:(nonnull NSString *)cancelButtonTitle
				otherButtonTitles:(nullable NSArray *)otherButtonTitles
				otherButtonStyles:(nullable NSDictionary *)otherButtonStyles
			 preferredActionTitle:(nullable NSString *)preferredActionTitle
					   completion:(nullable RQAlertViewCompletion)completion {
	__block UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:alertControllerStyle];
	
	void (^alertActionHandler) (UIAlertAction *) = [^(UIAlertAction *action) {
		if (completion) {
			if (action.style == UIAlertActionStyleCancel) {
				completion(NSNotFound);
			}else {
				NSUInteger index = [alertController.actions indexOfObject:action];
				completion(index - 1);
			}
		}
		alertController = nil;
	} copy];
	
	[alertController addAction:[UIAlertAction actionWithTitle:cancelButtonTitle style:UIAlertActionStyleCancel handler:alertActionHandler]];
	
	
	@synchronized (alertController) {
		for (NSString *buttonTitle in otherButtonTitles) {
			NSNumber *actionStyleNumber = [otherButtonStyles valueForKey:buttonTitle];
			UIAlertActionStyle actionStyle = UIAlertActionStyleDefault;
			if (actionStyleNumber) {
				actionStyle = [actionStyleNumber integerValue];
			}
			UIAlertAction *action = [UIAlertAction actionWithTitle:buttonTitle
															 style:actionStyle
														   handler:alertActionHandler];
			[alertController addAction:action];
			
			///Support for iOS9 add preferredAction for highlights the text of that action
			if ([alertController respondsToSelector:@selector(setPreferredAction:)]) {
				if ([preferredActionTitle isEqualToString:buttonTitle]) {
					if (@available(iOS 9.0, *)) {
						[alertController setPreferredAction:action];
					} else {
						// Fallback on earlier versions
					}
				}
			}
		}
	}
	[[RQ_SHARE_FUNCTION getCurrentVC] presentViewController:alertController animated:YES completion:nil];
}

+ (void)showAlertWithTitle:(nullable NSString *)title
				   message:(nullable NSString *)message
	  alertControllerStyle:(UIAlertControllerStyle)alertControllerStyle
		 cancelButtonTitle:(nonnull NSString *)cancelButtonTitle
		 otherButtonTitles:(nullable NSArray *)otherButtonTitles
		 otherButtonStyles:(nullable NSDictionary *)otherButtonStyles
	  preferredActionTitle:(nullable NSString *)preferredActionTitle
				completion:(nullable RQAlertViewCompletion)completion{
	[self showAlertAtViewController:[RQ_SHARE_FUNCTION getCurrentVC]
						  WithTitle:title
							message:message
			   alertControllerStyle:alertControllerStyle
				  cancelButtonTitle:cancelButtonTitle
				  otherButtonTitles:otherButtonTitles
				  otherButtonStyles:otherButtonStyles
			   preferredActionTitle:preferredActionTitle
						 completion:completion];
}

+ (void)showAlertWithTitle:(nullable NSString *)title
				   message:(nullable NSString *)message
	  alertControllerStyle:(UIAlertControllerStyle)alertControllerStyle
		 cancelButtonTitle:(nonnull NSString *)cancelButtonTitle
		 otherButtonTitles:(nullable NSArray *)otherButtonTitles
		 otherButtonStyles:(nullable NSDictionary *)otherButtonStyles
				completion:(nullable RQAlertViewCompletion)completion {
	[self showAlertAtViewController:[RQ_SHARE_FUNCTION getCurrentVC]
						  WithTitle:title
							message:message
			   alertControllerStyle:alertControllerStyle
				  cancelButtonTitle:cancelButtonTitle
				  otherButtonTitles:otherButtonTitles
				  otherButtonStyles:otherButtonStyles
			   preferredActionTitle:nil
						 completion:completion];
}

@end