[iOS微博项目 - 3.6] - 获取未读消息

github: https://github.com/hellovoidworld/HVWWeibo

 

A.获取登陆用户未读消息

1.需求

• 获取所有未读消息，包括新微博、私信、@、转发、关注等
• 把未读消息数显示在相应的tabItem上
• 把总的未读消息数显示在app图标上
• 当app进入后台，仍然需要刷新未读消息数量数据
• 读取了未读消息之后清空计数
• 监听tabBarItem的点击，刷新数据（例如重复点击“首页”要刷新微博）

 

 

 

2.思路

• 使用微博提醒API获取未读消息
• 使用定时器定时获取
• 在AppDelegate设置app进入后台时仍然工作
• 使用tabBarDelegate方法监听tabBarItem的点击

 

 

 

返回字段：

 

 

3.实现

 

（1）参数类

 1 //
 2 //  HVWUnreadCountParam.h
 3 //  HVWWeibo
 4 //
 5 //  Created by hellovoidworld on 15/2/11.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "HVWBaseParam.h"
10
11 @interface HVWUnreadCountParam : HVWBaseParam
12
13 /** uid true int64 需要获取消息未读数的用户UID，必须是当前登录用户。*/
14 @property(nonatomic, assign) int uid;
15
16 /** false boolean 未读数版本。0：原版未读数，1：新版未读数。默认为0。 */
17 @property(nonatomic, assign) BOOL unread_message;
18
19 @end

 

（2）返回结果类

 1 //
 2 //  HVWUnreadCountResult.h
 3 //  HVWWeibo
 4 //
 5 //  Created by hellovoidworld on 15/2/11.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import <Foundation/Foundation.h>
10
11 @interface HVWUnreadCountResult : NSObject
12
13 /** int 新微博未读数 */
14 @property(nonatomic, assign) int status;
15
16 /** int 新粉丝数 */
17 @property(nonatomic, assign) int follower;
18
19 /** int 新评论数 */
20 @property(nonatomic, assign) int cmt;
21
22 /** int 新私信数 */
23 @property(nonatomic, assign) int dm;
24
25 /** int 新提及我的微博数 */
26 @property(nonatomic, assign) int mention_status;
27
28 /** int 新提及我的评论数 */
29 @property(nonatomic, assign) int mention_cmt;
30
31 /** int 微群消息未读数 */
32 @property(nonatomic, assign) int group;
33
34 /** int 私有微群消息未读数 */
35 @property(nonatomic, assign) int private_group;
36
37 /** int 新通知未读数 */
38 @property(nonatomic, assign) int notice;
39
40 /** int 新邀请未读数 */
41 @property(nonatomic, assign) int invite;
42
43 /** int 新勋章数 */
44 @property(nonatomic, assign) int badge;
45
46 /** int 相册消息未读数 */
47 @property(nonatomic, assign) int photo;
48
49 /** 聊天未读数 */
50 @property(nonatomic, assign) int msgbox;
51
52 /** 获取“消息”未读数 */
53 - (int) messageUnreadCount;
54
55
56 /** 获取“发现”未读数 */
57 - (int) discoverUnreadCount;
58
59 /** 获取“我”未读数 */
60 - (int) profileUnreadCount;
61
62 /** 总未读数 */
63 - (int) totalUnreadCount;
64
65 @end
66  

 1 //
 2 //  HVWUnreadCountResult.m
 3 //  HVWWeibo
 4 //
 5 //  Created by hellovoidworld on 15/2/11.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "HVWUnreadCountResult.h"
10
11 @implementation HVWUnreadCountResult
12
13 /** 获取“消息”未读数 */
14 - (int) messageUnreadCount {
15     return self.cmt + self.dm + self.mention_status + self.cmt + self.group + self.private_group + self.notice + self.invite;
16 }
17
18 /** 获取“发现”未读数 */
19 - (int) discoverUnreadCount {
20     return 0;
21 }
22
23 /** 获取“我”未读数 */
24 - (int) profileUnreadCount {
25     return self.follower + self.photo + self.badge + self.msgbox;
26 }
27
28 /** 总未读数 */
29 - (int) totalUnreadCount {
30     return self.status + [self messageUnreadCount] + [self discoverUnreadCount] + [self profileUnreadCount];
31 }
32
33 @end

 

 

（3）工具类

 1 //
 2 //  HVWUnreadCountTool.h
 3 //  HVWWeibo
 4 //
 5 //  Created by hellovoidworld on 15/2/11.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "HVWBaseTool.h"
10 #import "HVWUnreadCountParam.h"
11 #import "HVWUnreadCountResult.h"
12
13 @interface HVWUnreadCountTool : HVWBaseTool
14
15 /** 获取未读消息数 */
16 + (void) unreadCountWithParameters:(HVWUnreadCountParam *)parameters success:(void (^)(HVWUnreadCountResult *result))success failure:(void (^)(NSError *error))failure;
17
18 @end

 

 1 //
 2 //  HVWUnreadCountTool.m
 3 //  HVWWeibo
 4 //
 5 //  Created by hellovoidworld on 15/2/11.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "HVWUnreadCountTool.h"
10
11 @implementation HVWUnreadCountTool
12
13 /** 获取未读消息数 */
14 + (void) unreadCountWithParameters:(HVWUnreadCountParam *)parameters success:(void (^)(HVWUnreadCountResult *result))success failure:(void (^)(NSError *error))failure {
15     [self getWithUrl:@"https://rm.api.weibo.com/2/remind/unread_count.json" parameters:parameters resultClass:[HVWUnreadCountResult class] success:success failure:failure];
16 }
17
18 @end

 

（4）在tabBar控制器中调用

  1 //
  2 //  HVWTabBarViewController.m
  3 //  HVWWeibo
  4 //
  5 //  Created by hellovoidworld on 15/1/31.
  6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
  7 //
  8
  9 #import "HVWTabBarViewController.h"
 10 #import "HVWHomeViewController.h"
 11 #import "HVWMessageViewController.h"
 12 #import "HVWDiscoverViewController.h"
 13 #import "HVWProfileViewController.h"
 14 #import "HVWNavigationViewController.h"
 15 #import "HVWTabBar.h"
 16 #import "HVWComposeViewController.h"
 17 #import "HVWUnreadCountTool.h"
 18 #import "HVWUnreadCountParam.h"
 19 #import "HVWAccountInfoTool.h"
 20 #import "HVWAccountInfo.h"
 21
 22 @interface HVWTabBarViewController () <HVWTabBarDelegate>
 23
 24 /** 首页控制器 */
 25 @property(nonatomic, strong) HVWHomeViewController *homeVC;
 26
 27 /** 消息控制器 */
 28 @property(nonatomic, strong) HVWMessageViewController *messageVC;
 29
 30 /** 发现控制器 */
 31 @property(nonatomic, strong) HVWDiscoverViewController *discoverVC;
 32
 33 /** 我控制器 */
 34 @property(nonatomic, strong) HVWProfileViewController *profileVC;
 35
 36 /** 上一次选择的tabBarItem */
 37 @property(nonatomic, strong) UITabBarItem *lastSelectedTabBarItem;
 38
 39 @end
 40
 41 @implementation HVWTabBarViewController
 42
 43 - (void)viewDidLoad {
 44     [super viewDidLoad];
 45     // Do any additional setup after loading the view.
 46
 47     // 使用自定义的TabBar
 48     HVWTabBar *hvwTabBar = [[HVWTabBar alloc] init];
 49     hvwTabBar.hvwTabBarDelegate = self;
 50     // 重设tabBar，由于tabBar是只读成员，使用KVC相当于直接修改_tabBar
 51     [self setValue:hvwTabBar forKey:@"tabBar"];
 52
 53     // 添加子控制器
 54     [self addAllChildViewControllers];
 55
 56     // 设置未读消息获取
 57     [self setupUnreadCount];
 58 }
 59
 60 /** 添加所有子控制器 */
 61 - (void) addAllChildViewControllers {
 62     // 首页
 63     HVWHomeViewController *homeVC = [[HVWHomeViewController alloc] init];
 64     [self addChildViewController:homeVC WithTitle:@"首页" image:@"tabbar_home" seletectedImage:@"tabbar_home_selected"];
 65     self.homeVC = homeVC;
 66
 67     // 打开app，设置首页为上一次选择的tabBarItem
 68     self.lastSelectedTabBarItem = homeVC.tabBarItem;
 69
 70     // 消息
 71     HVWMessageViewController *messageVC = [[HVWMessageViewController alloc] init];
 72     [self addChildViewController:messageVC WithTitle:@"消息" image:@"tabbar_message_center" seletectedImage:@"tabbar_message_center_selected"];
 73     self.messageVC = messageVC;
 74
 75     // 发现
 76     HVWDiscoverViewController *discoverVC = [[HVWDiscoverViewController alloc] init];
 77     [self addChildViewController:discoverVC WithTitle:@"发现" image:@"tabbar_discover" seletectedImage:@"tabbar_discover_selected"];
 78     self.discoverVC = discoverVC;
 79
 80     // 我
 81     HVWProfileViewController *profileVC = [[HVWProfileViewController alloc] init];
 82     [self addChildViewController:profileVC WithTitle:@"我" image:@"tabbar_profile" seletectedImage:@"tabbar_profile_selected"];
 83     self.profileVC = profileVC;
 84 }
 85
 86 /** 添加tab子控制器 */
 87 - (void) addChildViewController:(UIViewController *) viewController WithTitle:(NSString *) title image:(NSString *) imageName seletectedImage:(NSString *) selectedImageName {
 88
 89     // 设置随机背景色
 90 //    viewController.view.backgroundColor = RandomColor;
 91
 92     // 设置标题，直接设置title可以同时设置tabBarItem和navigationItem的title
 93 //    viewController.tabBarItem.title = title;
 94 //    viewController.navigationItem.title = title;
 95     viewController.title = title;
 96
 97     // 设置图标
 98     viewController.tabBarItem.image = [UIImage imageWithNamed:imageName];
 99
100     // 被选中时图标
101     UIImage *selectedImage = [UIImage imageWithNamed:selectedImageName];
102     // 如果是iOS7，不要渲染被选中的tab图标（iOS7中会自动渲染成为蓝色）
103     if (iOS7) {
104         selectedImage = [selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
105     }
106     viewController.tabBarItem.selectedImage = selectedImage;
107
108     // 添加子控制器
109     HVWNavigationViewController *nav = [[HVWNavigationViewController alloc] initWithRootViewController:viewController];
110     [self addChildViewController:nav];
111 }
112
113 #pragma mark - HVWTabBarDelegate
114 /** “+”按钮点击代理方法 */
115 - (void)tabBarDidComposeButtonClick:(HVWTabBar *)tabBar {
116     HVWComposeViewController *composeView = [[HVWComposeViewController alloc] init];
117
118     // tabBarController不是由navigationController弹出来的，没有navigationController
119 //    [self.navigationController pushViewController:vc animated:YES];
120 //    HVWLog(@"%@", self.navigationController); // null
121
122     // 为了使用导航栏，使用NavigationController包装一下
123     HVWNavigationViewController *nav = [[HVWNavigationViewController alloc] initWithRootViewController:composeView];
124     // 使用modal方式弹出
125     [self presentViewController:nav animated:YES completion:nil];
126 }
127
128 /** 选中了某个tabBarItem */
129 - (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
130     // 如果是首页
131     UINavigationController *nav = (UINavigationController *)self.selectedViewController;
132
133     if ([[nav.viewControllers firstObject] isKindOfClass:[HVWHomeViewController class]]) { // 如果是“首页”item被点击
134         if (self.lastSelectedTabBarItem == item) { // 重复点击
135             [self.homeVC refreshStatusFromAnother:NO];
136         } else { // 跳转点击
137             [self.homeVC refreshStatusFromAnother:YES];
138         }
139     } else {
140 //        item.badgeValue = nil;
141     }
142
143 }
144
145 #pragma mark - unread count
146 /** 设置未读消息获取 */
147 - (void) setupUnreadCount {
148     // 第一次要先获取一次
149     [self fetchUnreadCount];
150
151     // 设置定时器,每隔一段时间获取一次
152     NSTimer *unreadTimer =  [NSTimer scheduledTimerWithTimeInterval:60.0 target:self selector:@selector(fetchUnreadCount) userInfo:nil repeats:YES];
153
154     // 要设置系统分配资源，不然用户操作的时候会阻塞
155     [[NSRunLoop mainRunLoop] addTimer:unreadTimer forMode:NSRunLoopCommonModes];
156 }
157
158 /** 设置刷新未读消息定时任务 */
159 - (void) fetchUnreadCount {
160     // 设置参数
161     HVWUnreadCountParam *param = [[HVWUnreadCountParam alloc] init];
162     param.uid = [HVWAccountInfoTool accountInfo].uid.intValue;
163
164
165     // 发送请求
166     [HVWUnreadCountTool unreadCountWithParameters:param success:^(HVWUnreadCountResult *result) {
167         HVWLog(@"现在有%d未读消息", [result totalUnreadCount]);
168         // 未读"微博"数
169         if (result.status) {
170             self.homeVC.tabBarItem.badgeValue = [NSString stringWithFormat:@"%d", result.status];
171         } else {
172             self.homeVC.tabBarItem.badgeValue = nil;
173         }
174
175         // 未读"消息"数
176         if ([result messageUnreadCount]) {
177             self.messageVC.tabBarItem.badgeValue = [NSString stringWithFormat:@"%d", [result messageUnreadCount]];
178         } else {
179             self.messageVC.tabBarItem.badgeValue = nil;
180         }
181
182         // 未读"发现"数
183         if ([result discoverUnreadCount]) {
184             self.discoverVC.tabBarItem.badgeValue = [NSString stringWithFormat:@"%d", [result discoverUnreadCount]];
185         } else {
186             self.discoverVC.tabBarItem.badgeValue = nil;
187         }
188
189         // 未读“我”数
190         if ([result profileUnreadCount]) {
191             self.profileVC.tabBarItem.badgeValue = [NSString stringWithFormat:@"%d", [result profileUnreadCount]];
192         } else {
193             self.profileVC.tabBarItem.badgeValue = nil;
194         }
195
196         // 设置app图标，(iOS8或以上要先获得授权,在AppDelegate里面做了)
197         [UIApplication sharedApplication].applicationIconBadgeNumber = [result totalUnreadCount];
198     } failure:^(NSError *error) {
199         HVWLog(@"获取未读消息数失败,error:%@", error);
200     }];
201 }
202
203 @end

 

 

（4）AppDelegate

iOS8及以上发送图标角标通知要获得用户授权

设置app获得后台运行权利

 1 //
 2 //  AppDelegate.m
 3 //  UIWebViewdDemo
 4 //
 5 //  Created by hellovoidworld on 15/1/30.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "AppDelegate.h"
10 #import "HVWControllerTool.h"
11 #import "SDImageCache.h"
12 #import "SDWebImageManager.h"
13
14 @interface AppDelegate ()
15
16 @end
17
18 @implementation AppDelegate
19
20
21 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
22     // Override point for customization after application launch.
23
24     // 启动后显示状态栏
25     UIApplication *app = [UIApplication sharedApplication];
26     app.statusBarHidden = NO;
27
28     // 设置window
29     self.window = [[UIWindow alloc] init];
30     self.window.frame = [UIScreen mainScreen].bounds;
31     [self.window makeKeyAndVisible];
32
33     // 设置根控制器
34     [HVWControllerTool chooseRootViewController];
35
36     // 允许修改app图标角标
37     if (iOS8) {
38         UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil];
39         [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
40     }
41
42     return YES;
43 }
44
45 - (void)applicationWillResignActive:(UIApplication *)application {
46     // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
47     // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
48 }
49
50 - (void)applicationDidEnterBackground:(UIApplication *)application {
51     // 设置让app在后台也能运行
52     UIBackgroundTaskIdentifier taskID = [application beginBackgroundTaskWithExpirationHandler:^{
53         [application endBackgroundTask:taskID];
54     }];
55 }
56
57 - (void)applicationWillEnterForeground:(UIApplication *)application {
58     // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
59 }
60
61 - (void)applicationDidBecomeActive:(UIApplication *)application {
62     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
63 }
64
65 - (void)applicationWillTerminate:(UIApplication *)application {
66     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
67 }
68
69 - (void)applicationDidReceiveMemoryWarning:(UIApplication *)application {
70     // 清除缓存
71     [[SDImageCache sharedImageCache] clearMemory];
72
73     // 停止下载
74     [[SDWebImageManager sharedManager] cancelAll];
75 }
76
77
78 @end
79  

 

（4）“首页”的tabBarItem被点击时的刷新方法

 1 //  HVWHomeViewController.m
 2 /** 刷新数据 */
 3 - (void) refreshStatusFromAnother:(BOOL)isFromAnother {
 4     if (!isFromAnother) { // 重复点击首页item
 5         // 滚动到顶部
 6         NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
 7         [self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES];
 8
 9         if (self.tabBarItem.badgeValue.intValue) { // 有新消息
10             // 刷新数据
11             [self refreshLatestWeibo:self.refreshControl];
12         }
13     } else {
14
15     }
16 }