iOS引导登录、登录引导、login（点击某个功能按钮需要登录并且登录完成后自动跳转到要去的功能实现方法）

来源：互联网发布：windows dhcp client 编辑：程序博客网时间：2024/05/22 05:24

我们要实现的功能是：

1.未登录的情况下，点击某个按钮进入到不需要登录的功能，则直接进入

2.未登录的情况下，点击某个按钮进入到需要登录的功能A，则先进入登录界面，登录成功后直接跳转到这个功能A，登录不成功不跳转

3.已经登录的情况下，点击某个按钮进入到需要登录的功能A，则直接进入

实现这个功能有简单版的（重复代码会多，容易理解），稍复杂版的（简单版的封装，重复代码少，逻辑稍微有点复杂）

简单版目录截图：

说明：

1是三个功能页面，分别为转账，汇款，借款

2是登录界面，包括：用户名输入框，密码输入框，登录按钮，取消按钮

3是AppDelegate 设置TabbarController

4是TabbarController的viewControllers元素，页面包括三个圆按钮

5是写宏定义的文件和 frame的方便调用方法

6是按钮图标

下面说实现过程，只贴关键代码，简单实现的demo地址是：点击打开链接http://download.csdn.net/detail/qq_15509071/9839319

百度网盘的下载地址是https://pan.baidu.com/s/1bphC947

1.用一个全局变量记录是否登录，点击一个按钮时，进行判断，如果没有登录则往NSNotificationCenter添加一个观察者和名字然后展示登录界面

//三个按钮的点击事件- (void)btnClicked:(UIButton *)btnn{    if (btnn.tag == 0) {        //        //判断是否登录 登录了直接进 没登录引导登录并登录成功后直接跳到对应业务        //        if (APPLICATION.isLogin == YES) {            [self jumpToZhuanZhang];        }else{            //            //先移除本通知，原因是：点击一个功能跳到登录界面，但是在登录界面点的取消，反复操作，再点这个功能，            //相同的通知会增加多次，登陆成功后会多次进入相应的功能            //            [[NSNotificationCenter defaultCenter] removeObserver:self name:@"LOGIN_ZZ" object:nil] ;            [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(jumpToZhuanZhang) name:@"LOGIN_ZZ" object:nil];            LoginViewController *loginVC = [[LoginViewController alloc]init];            [self.navigationController presentViewController:loginVC animated:YES completion:^{}];        }    }else if(btnn.tag == 1){        if (APPLICATION.isLogin == YES) {            [self jumpToHuiKuan];        }else{            [[NSNotificationCenter defaultCenter] removeObserver:self name:@"LOGIN_HK" object:nil] ;            [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(jumpToHuiKuan) name:@"LOGIN_HK" object:nil];            LoginViewController *loginVC = [[LoginViewController alloc]init];            [self.navigationController presentViewController:loginVC animated:YES completion:^{                            }];        }    }else{        if (APPLICATION.isLogin == YES) {            [self jumpToJieKuan];        }else{                        [[NSNotificationCenter defaultCenter] removeObserver:self name:@"LOGIN_JK" object:nil] ;            [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(jumpToJieKuan) name:@"LOGIN_JK" object:nil];            LoginViewController *loginVC = [[LoginViewController alloc]init];            [self.navigationController presentViewController:loginVC animated:YES completion:^{                            }];        }    }    }-(void)jumpToZhuanZhang{    ZhuanZhangViewController *vc = [[ZhuanZhangViewController alloc]init];    vc.hidesBottomBarWhenPushed =YES;    [self.navigationController pushViewController:vc animated:YES];}-(void)jumpToHuiKuan{    HuiKuanViewController *vc = [[HuiKuanViewController alloc]init];    vc.hidesBottomBarWhenPushed =YES;    [self.navigationController pushViewController:vc animated:YES];}-(void)jumpToJieKuan{    JieKuanViewController *vc = [[JieKuanViewController alloc]init];    vc.hidesBottomBarWhenPushed =YES;    [self.navigationController pushViewController:vc animated:YES];}

2.登录验证成功后，去掉登录页面，并发送通知执行。不成功则在当前页t停留

- (IBAction)loginBtnClicked:(id)sender {        if (self.userName.text.length > 0 && self.passWord.text.length > 0) {        APPLICATION.isLogin = YES;                [self dismissViewControllerAnimated:YES completion:^{            [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_ZZ" object:nil ];            [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_HK" object:nil ];            [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_JK" object:nil ];                    }];    }else{        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"提示" message:@"输入有误" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];        [alertView show];    }}

3.这样基本就实现了，但是有问题。依次点击转账按钮---->出现登录界面--->点取消--->登录界面消失--->点汇款按钮---->出现登录界面--->输入用户名密码点登录。结果是依次进入了转账页面和汇款页面。修改这个问题需要增加一个enum记录引导登录的功能。代码更改为：

********声明********typedef enum JumpType{ ZHUANZHANG_HOME_LOGIN = 0, HUIKUAN_HOME_LOGIN , JIEKUAN_HOME_LOGIN , }MYJumpType;********转账按钮点击事件********    if (btnn.tag == 0) {        //        //判断是否登录 登录了直接进 没登录引导登录并登录成功后直接跳到对应业务        //        if (APPLICATION.isLogin == YES) {            [self jumpToZhuanZhang];        }else{            //            //先移除本通知，原因是：点击一个功能跳到登录界面，但是在登录界面点的取消，反复操作，再点这个功能，            //相同的通知会增加多次，登陆成功后会多次进入相应的功能            //            APPLICATION.jumpType = ZHUANZHANG_HOME_LOGIN;            [[NSNotificationCenter defaultCenter] removeObserver:self name:@"LOGIN_ZZ" object:nil] ;            [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(jumpToZhuanZhang) name:@"LOGIN_ZZ" object:nil];            LoginViewController *loginVC = [[LoginViewController alloc]init];            [self.navigationController presentViewController:loginVC animated:YES completion:^{}];        }            }********登录按钮点击事件********- (IBAction)loginBtnClicked:(id)sender {        if (self.userName.text.length > 0 && self.passWord.text.length > 0) {        APPLICATION.isLogin = YES;                [self dismissViewControllerAnimated:YES completion:^{            if(APPLICATION.jumpType == ZHUANZHANG_HOME_LOGIN){                [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_ZZ" object:nil ];            }else if (APPLICATION.jumpType == HUIKUAN_HOME_LOGIN){                [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_HK" object:nil ];            }else if (APPLICATION.jumpType == JIEKUAN_HOME_LOGIN){                [[NSNotificationCenter defaultCenter] postNotificationName:@"LOGIN_JK" object:nil ];            }        }];    }else{        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"提示" message:@"输入有误" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];        [alertView show];    }}

4简单的实现就完成了。

5开始对上面代码封装封装后的代码地址http://download.csdn.net/detail/qq_15509071/9839559

百度网盘的链接地址是 https://pan.baidu.com/s/1qYEwdvm

5.1增加路由类

////  RouteManager.h//  GuideLoginDemo////  Created by yfc on 17/5/11.//  Copyright © 2017年 yfc. All rights reserved.//#import <Foundation/Foundation.h>#import <UIKit/UIKit.h>@interface RouteManager : NSObject+ (void)pushViewControllerWithOriginViewController:(UIViewController *)originViewController loginFlag:(NSString *)loginFlag identifier:(const NSString *)identifier otherParameters:(NSDictionary *)parameters;@end

////  RouteManager.m//  GuideLoginDemo////  Created by yfc on 17/5/11.//  Copyright © 2017年 yfc. All rights reserved.//#import "RouteManager.h"#import "config.h"static RouteManager *routeManager = nil;@interface RouteManager ()@property(nonatomic,assign)UIViewController *originViewController;@property(nonatomic,retain)NSString *currentIdentifier;@property(nonatomic,assign)RouteManager *manager_;@end@implementation RouteManager+ (RouteManager*)sharedRouteManager{    @synchronized(routeManager)    {        if(!routeManager)        {            routeManager = [[RouteManager alloc]init];        }    }    return routeManager;}+ (void)pushViewControllerWithOriginViewController:(UIViewController *)originViewController loginFlag:(NSString *)loginFlag identifier:(const NSString *)identifier otherParameters:(NSDictionary *)parameters;{    RouteManager *manager = [RouteManager sharedRouteManager];        NSLog(@"manager=%@",manager);        manager.manager_ = manager;    [manager pushViewControllerWithOriginViewController:originViewController loginFlag:loginFlag   identifier:identifier otherParameters:parameters];    }- (void)pushViewControllerWithOriginViewController:(UIViewController *)originViewController loginFlag:(NSString *)loginFlag identifier:(const NSString *)identifier otherParameters:(NSDictionary *)parameters;{    self.originViewController = originViewController;    self.currentIdentifier = (NSString *)identifier;    if ([loginFlag isEqualToString:@"Y"]) {                if (APPLICATION.isLogin == YES){            [self pushViewController];        }else{            //引导登录            [self setNotiObserverLogin];        }            }    else{        [self pushViewController];    }}- (void)setNotiObserverLogin{        APPLICATION.jumpType = ROUTE_MANAGER;    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"ROUTE_MANAGER" object:nil];    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(pushViewController) name:@"ROUTE_MANAGER" object:nil];        //如果已经有登录页了 不要重复弹出    UINavigationController *topNavi = (UINavigationController*)APPLICATION.window.rootViewController.presentedViewController;    for (UIViewController *loginVC in topNavi.viewControllers) {        if ([loginVC isKindOfClass:NSClassFromString(@"LoginViewController")]) {            return;        }    }    NSLog(@"%@",(APPLICATION.window.rootViewController.presentedViewController));        LoginViewController *loginVC = [[LoginViewController alloc]init];    [APPLICATION.window.rootViewController presentViewController:loginVC animated:YES completion:^{}];}- (void)pushViewController{    {        id viewController = [[NSClassFromString(self.currentIdentifier) alloc]init];        if ([self.originViewController isKindOfClass:[UINavigationController class]]) {            [(UINavigationController*)self.originViewController pushViewController:viewController animated:YES];        }else{            [self.originViewController.navigationController pushViewController:viewController animated:YES];        }            }    }@end

5.2枚举值声明改为

typedef enum JumpType{    ROUTE_MANAGER= 0,}MYJumpType;

5.3三个按钮的点击事件改为

//三个按钮的点击事件- (void)btnClicked:(UIButton *)btnn{    if (btnn.tag == 0) {        [RouteManager pushViewControllerWithOriginViewController:self loginFlag:@"Y" identifier:@"ZhuanZhangViewController" otherParameters:nil];    }else if(btnn.tag == 1){        [RouteManager pushViewControllerWithOriginViewController:self loginFlag:@"Y" identifier:@"HuiKuanViewController" otherParameters:nil];    }else{        [RouteManager pushViewControllerWithOriginViewController:self loginFlag:@"Y" identifier:@"JieKuanViewController" otherParameters:nil];    }    }

5.4登录按钮的事件

- (IBAction)loginBtnClicked:(id)sender {        if (self.userName.text.length > 0 && self.passWord.text.length > 0) {        APPLICATION.isLogin = YES;                [self dismissViewControllerAnimated:YES completion:^{            if(APPLICATION.jumpType == ROUTE_MANAGER){                [[NSNotificationCenter defaultCenter] postNotificationName:@"ROUTE_MANAGER" object:nil ];            }        }];    }else{        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"提示" message:@"输入有误" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];        [alertView show];    }}

k.o.

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