传值通知：类似通知，代理，block实现值传递。
推送通知：推送到用户手机对应App上（主要是不在前台的情况）。
本地通知：用于基于时间行为的通知，比如有关日历或者todo列表的小应用。另外，如果应用在后台执行，iOS允许它在受限的时间内运行，本地通知也很有用。比如：一个应用，在后台运行，向应用获取服务端消息，当消息到达时，比如下载更新版本的提示消息，通过本地通知机制通知用户。
本地通知的例子：
#import "AppDelegate.h"
// iOS10.0 需要导入
#import <UserNotifications/UserNotifications.h>
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[self registerAPN];
return YES;
}
// 注册通知
- (void)registerAPN {
if (@available(iOS 10.0, *)) { // iOS10 以上
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert + UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) {
}];
} else {// iOS8.0 以上
UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:setting];
}
}
......
#import "DJViewController.h"
// iOS10.0 需要导入
#import <UserNotifications/UserNotifications.h>
@interface DJViewController ()
@end
@implementation DJViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self addLocalNotice];
}
//添加通知
- (void)addLocalNotice {
if (@available(iOS 10.0, *)) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
// 标题
content.title = @"测试标题";
content.subtitle = @"测试通知副标题";
// 内容
content.body = @"测试通知的具体内容";
// 声音
// 默认声音
// content.sound = [UNNotificationSound defaultSound];
// 添加自定义声音
content.sound = [UNNotificationSound soundNamed:@"Alert_ActivityGoalAttained_Salient_Haptic.caf"];
// 角标 （我这里测试的角标无效，暂时没找到原因）
content.badge = @1;
// 多少秒后发送,可以将固定的日期转化为时间
NSTimeInterval time = [[NSDate dateWithTimeIntervalSinceNow:10] timeIntervalSinceNow];
// repeats，是否重复，如果重复的话时间必须大于60s，要不会报错
UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:time repeats:NO];
/*
//如果想重复可以使用这个,按日期
// 周一早上 8：00 上班
NSDateComponents *components = [[NSDateComponents alloc] init];
// 注意，weekday默认是从周日开始
components.weekday = 2;
components.hour = 8;
UNCalendarNotificationTrigger *calendarTrigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:components repeats:YES];
*/
// 添加通知的标识符，可以用于移除，更新等操作
NSString *identifier = @"noticeId";
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content trigger:trigger];
[center addNotificationRequest:request withCompletionHandler:^(NSError *_Nullable error) {
NSLog(@"成功添加推送");
}];
}else {
UILocalNotification *notif = [[UILocalNotification alloc] init];
// 发出推送的日期
notif.fireDate = [NSDate dateWithTimeIntervalSinceNow:10];
// 推送的内容
notif.alertBody = @"你已经10秒没出现了";
// 可以添加特定信息
notif.userInfo = @{@"noticeId":@"00001"};
// 角标
notif.applicationIconBadgeNumber = 1;
// 提示音
notif.soundName = UILocalNotificationDefaultSoundName;
// 每周循环提醒
notif.repeatInterval = NSCalendarUnitWeekOfYear;
[[UIApplication sharedApplication] scheduleLocalNotification:notif];
}
}
// 移除某一个指定的通知
- (void)removeOneNotificationWithID:(NSString *)noticeId {
if (@available(iOS 10.0, *)) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center getPendingNotificationRequestsWithCompletionHandler:^(NSArray<UNNotificationRequest *> * _Nonnull requests) {
for (UNNotificationRequest *req in requests){
NSLog(@"存在的ID:%@\n",req.identifier);
}
NSLog(@"移除currentID:%@",noticeId);
}];
[center removePendingNotificationRequestsWithIdentifiers:@[noticeId]];
}else {
NSArray *array=[[UIApplication sharedApplication] scheduledLocalNotifications];
for (UILocalNotification *localNotification in array){
NSDictionary *userInfo = localNotification.userInfo;
NSString *obj = [userInfo objectForKey:@"noticeId"];
if ([obj isEqualToString:noticeId]) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification];
}
}
}
}
// 移除所有通知
- (void)removeAllNotification {
if (@available(iOS 10.0, *)) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center removeAllPendingNotificationRequests];
}else {
[[UIApplication sharedApplication] cancelAllLocalNotifications];
}
}
//检查授权
- (void)checkUserNotificationEnable { // 判断用户是否允许接收通知
if (@available(iOS 10.0, *)) {
__block BOOL isOn = NO;
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
if (settings.notificationCenterSetting == UNNotificationSettingEnabled) {
isOn = YES;
NSLog(@"打开了通知");
}else {
isOn = NO;
NSLog(@"关闭了通知");
[self showAlertView];
}
}];
}else {
if ([[UIApplication sharedApplication] currentUserNotificationSettings].types == UIUserNotificationTypeNone){
NSLog(@"关闭了通知");
[self showAlertView];
}else {
NSLog(@"打开了通知");
}
}
}
- (void)showAlertView {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"通知" message:@"未获得通知权限，请前去设置" preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
[alert addAction:[UIAlertAction actionWithTitle:@"设置" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self goToAppSystemSetting];
}]];
[self presentViewController:alert animated:YES completion:nil];
}
// 如果用户关闭了接收通知功能，该方法可以跳转到APP设置页面进行修改
- (void)goToAppSystemSetting {
dispatch_async(dispatch_get_main_queue(), ^{
UIApplication *application = [UIApplication sharedApplication];
NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if ([application canOpenURL:url]) {
if (@available(iOS 10.0, *)) {
if ([application respondsToSelector:@selector(openURL:options:completionHandler:)]) {
[application openURL:url options:@{} completionHandler:nil];
}
}else {
[application openURL:url];
}
}
});
}
@end
