iOS开发 提示框UIAlertController的略微封装

本文主要是介绍iOS开发 提示框UIAlertController的略微封装，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

之前写的代码，把UIAlertView的封装剔除之后，发现UIAlertController 封装的意义不是很大了，毕竟苹果公司封装的已经够好了，好了，上代码

//
//  XSDAlertViewTools.h
//  XSDSH  提示框工具类
//
//  Created by 小广 on 16/1/11.
//  Copyright © 2016年 XSD. All rights reserved.
//#import <Foundation/Foundation.h>#define cancelIndex    (-1)typedef void(^AlertViewBlock)(NSInteger buttonTag);@interface XSDAlertViewTools : NSObject+ (XSDAlertViewTools *)shareInstance;/***  创建提示框**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param titleArray   标题字符串数组(为nil,默认为"确定")*  @param vc           VC iOS8及其以后会用到*  @param confirm      点击按钮的回调(取消按钮的Index是cancelIndex -1)*/
- (void)showAlert:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm;/***  创建提示框(可变参数版)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param vc           VC iOS8及其以后会用到*  @param confirm      点击按钮的回调(取消按钮的Index是cancelIndex -1)*  @param buttonTitles 按钮(为nil,默认为"确定",传参数时必须以nil结尾，否则会崩溃)*/
- (void)showAlert:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitleviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirmbuttonTitles:(NSString *)buttonTitles, ... NS_REQUIRES_NIL_TERMINATION;/***  创建菜单(Sheet)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param titleArray   标题字符串数组(为nil,默认为"确定")*  @param vc           VC iOS8及其以后会用到*  @param confirm      点击确认按钮的回调(取消按钮的Index是cancelIndex -1)*/
- (void)showSheet:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm;/***  创建菜单(Sheet 可变参数版)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param vc           VC*  @param confirm      点击按钮的回调(取消按钮的Index是cancelIndex -1)*  @param buttonTitles 按钮(为nil,默认为"确定",传参数时必须以nil结尾，否则会崩溃)*/
- (void)showSheet:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitleviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirmbuttonTitles:(NSString *)buttonTitles, ... NS_REQUIRES_NIL_TERMINATION ;@end

.m里

//
//  XSDAlertViewTools.m
//  XSDSH  提示框工具类
//
//  Created by 小广 on 16/1/11.
//  Copyright © 2016年 XSD. All rights reserved.
//#import "XSDAlertViewTools.h"#define RootVC  [[UIApplication sharedApplication] keyWindow].rootViewController@interface XSDAlertViewTools ()@property (nonatomic, copy) AlertViewBlock block;@end@implementation XSDAlertViewTools#pragma mark - 对外方法
+ (XSDAlertViewTools *)shareInstance {static XSDAlertViewTools *tools = nil;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{tools = [[self alloc] init];});return tools;
}/***  创建提示框**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param titleArray   标题字符串数组(为nil,默认为"确定")*  @param vc           VC*  @param confirm      点击确认按钮的回调*/
- (void)showAlert:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm {//if (!vc) vc = RootVC;[self p_showAlertController:title message:messagecancelTitle:cancelTitle titleArray:titleArrayviewController:vc confirm:^(NSInteger buttonTag) {if (confirm)confirm(buttonTag);}];
}/***  创建提示框(可变参数版)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param vc           VC*  @param confirm      点击按钮的回调*  @param buttonTitles 按钮(为nil,默认为"确定",传参数时必须以nil结尾，否则会崩溃)*/
- (void)showAlert:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitleviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirmbuttonTitles:(NSString *)buttonTitles, ... NS_REQUIRES_NIL_TERMINATION {// 读取可变参数里面的titles数组NSMutableArray *titleArray = [[NSMutableArray alloc] initWithCapacity:0];va_list list;if(buttonTitles) {//1.取得第一个参数的值(即是buttonTitles)[titleArray addObject:buttonTitles];//2.从第2个参数开始，依此取得所有参数的值NSString *otherTitle;va_start(list, buttonTitles);while ((otherTitle = va_arg(list, NSString*))) {[titleArray addObject:otherTitle];}va_end(list);}if (!vc) vc = RootVC;[self p_showAlertController:title message:messagecancelTitle:cancelTitle titleArray:titleArrayviewController:vc confirm:^(NSInteger buttonTag) {if (confirm)confirm(buttonTag);}];}/***  创建菜单(Sheet)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param titleArray   标题字符串数组(为nil,默认为"确定")*  @param vc           VC*  @param confirm      点击确认按钮的回调*/
- (void)showSheet:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm {if (!vc) vc = RootVC;[self p_showSheetAlertController:title message:message cancelTitle:cancelTitletitleArray:titleArray viewController:vc confirm:^(NSInteger buttonTag) {if (confirm)confirm(buttonTag);}];
}/***  创建菜单(Sheet 可变参数版)**  @param title        标题*  @param message      提示内容*  @param cancelTitle  取消按钮(无操作,为nil则只显示一个按钮)*  @param vc           VC iOS8及其以后会用到*  @param confirm      点击按钮的回调*  @param buttonTitles 按钮(为nil,默认为"确定",传参数时必须以nil结尾，否则会崩溃)*/
- (void)showSheet:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitleviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirmbuttonTitles:(NSString *)buttonTitles, ... NS_REQUIRES_NIL_TERMINATION {// 读取可变参数里面的titles数组NSMutableArray *titleArray = [[NSMutableArray alloc] initWithCapacity:0];va_list list;if(buttonTitles) {//1.取得第一个参数的值(即是buttonTitles)[titleArray addObject:buttonTitles];//2.从第2个参数开始，依此取得所有参数的值NSString *otherTitle;va_start(list, buttonTitles);while ((otherTitle= va_arg(list, NSString*))) {[titleArray addObject:otherTitle];}va_end(list);}if (!vc) vc = RootVC;// 显示菜单提示框[self p_showSheetAlertController:title message:message cancelTitle:cancelTitletitleArray:titleArray viewController:vc confirm:^(NSInteger buttonTag) {if (confirm)confirm(buttonTag);}];}#pragma mark - ----------------内部方法------------------//UIAlertController(iOS8及其以后)
- (void)p_showAlertController:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm {UIAlertController  *alert = [UIAlertController alertControllerWithTitle:titlemessage:messagepreferredStyle:UIAlertControllerStyleAlert];// 下面两行代码 是修改 title颜色和字体的代码
//    NSAttributedString *attributedMessage = [[NSAttributedString alloc] initWithString:title attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:17.0f], NSForegroundColorAttributeName:UIColorFrom16RGB(0x334455)}];
//    [alert setValue:attributedMessage forKey:@"attributedTitle"];if (cancelTitle) {// 取消UIAlertAction  *cancelAction = [UIAlertAction actionWithTitle:cancelTitlestyle:UIAlertActionStyleCancelhandler:^(UIAlertAction * _Nonnull action) {if (confirm)confirm(cancelIndex);}];[alert addAction:cancelAction];}// 确定操作if (!titleArray || titleArray.count == 0) {UIAlertAction  *confirmAction = [UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction * _Nonnull action) {if (confirm)confirm(0);}];[alert addAction:confirmAction];} else {for (NSInteger i = 0; i<titleArray.count; i++) {UIAlertAction  *action = [UIAlertAction actionWithTitle:titleArray[i]style:UIAlertActionStyleDefaulthandler:^(UIAlertAction * _Nonnull action) {if (confirm)confirm(i);}];// [action setValue:UIColorFrom16RGB(0x00AE08) forKey:@"titleTextColor"]; // 此代码 可以修改按钮颜色[alert addAction:action];}}[vc presentViewController:alert animated:YES completion:nil];}// ActionSheet的封装
- (void)p_showSheetAlertController:(NSString *)titlemessage:(NSString *)messagecancelTitle:(NSString *)cancelTitletitleArray:(NSArray *)titleArrayviewController:(UIViewController *)vcconfirm:(AlertViewBlock)confirm {UIAlertController *sheet = [UIAlertController alertControllerWithTitle:titlemessage:messagepreferredStyle:UIAlertControllerStyleActionSheet];if (!cancelTitle) cancelTitle = @"取消";// 取消UIAlertAction  *cancelAction = [UIAlertAction actionWithTitle:cancelTitlestyle:UIAlertActionStyleCancelhandler:^(UIAlertAction * _Nonnull action) {if (confirm)confirm(cancelIndex);}];[sheet addAction:cancelAction];if (titleArray.count > 0) {for (NSInteger i = 0; i<titleArray.count; i++) {UIAlertAction  *action = [UIAlertAction actionWithTitle:titleArray[i]style:UIAlertActionStyleDefaulthandler:^(UIAlertAction * _Nonnull action) {if (confirm)confirm(i);}];[sheet addAction:action];}}[vc presentViewController:sheet animated:YES completion:nil];
}@end

用法：

 // 通常的alert[[XSDAlertViewTools shareInstance] showAlert:@"提示"message:@"这个就是提示的内容了"cancelTitle:@"取消"titleArray:@[@"确定"]viewController:nilconfirm:^(NSInteger buttonTag) {// cancel按钮的index（buttonTag）是-1 cancelIndexNSLog(@"点击按钮的buttonTag===%ld==",(long)buttonTag);}];

 // 带有可变参数的alert[[XSDAlertViewTools shareInstance] showAlert:@"提示"message:@"这个就是提示的内容了"cancelTitle:@"取消"viewController:selfconfirm:^(NSInteger buttonTag) {// cancel按钮的index（buttonTag）是-1 cancelIndexNSLog(@"点击按钮的buttonTag===%ld==",(long)buttonTag);} buttonTitles:@"呼叫",@"查看",@"我就看看", nil];

如图：alert 和sheet

  

比较low，大家凑合着看吧...其中的sheet的用法，和上面的alert一样；

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