布局如下:(重点讲本地通知)
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Notification是智能手机应用编程中非常常用的一种传递信息的机制,而且可以非常好的节省资源,不用消耗资源来不停地检查信息状态(Pooling),在iOS下应用分为两种不同的Notification种类,本地和远程。本地的Notification由iOS下NotificationManager统一管理,只需要将封装好的本地Notification对象加入到系统Notification管理机制队列中,系统会在指定的时间激发将本地Notification,应用只需设计好处理Notification的方法就完成了整个Notification流程了。
本地Notification所使用的对象是UILocalNotification,UILocalNotification的属性涵盖了所有处理Notification需要的内容。UILocalNotification的属性有fireDate、timeZone、repeatInterval、repeatCalendar、alertBody、 alertAction、hasAction、alertLaunchImage、applicationIconBadgeNumber、 soundName和userInfo。
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1.首先要明白模拟器和真机的区别:模拟器不会有音频提示,另外就是没有检测允许接受通知,所以我补充一下几点:
1.添加监测通知:
if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]){
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
#import "ViewController.h"
#import "DetailViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIButton *schedule;
@property (weak, nonatomic) IBOutlet UIButton *unSchedule;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
// 调度通知
- (IBAction)schedule:(UIButton *)sender {
// 1.创建通知
UILocalNotification *ln = [[UILocalNotification alloc]init];
if (ln) {
// 设置时区
ln.timeZone = [NSTimeZone defaultTimeZone];
// 通知第一次发出的时间
ln.fireDate = [[NSDate date]dateByAddingTimeInterval:5];
// 2.设置通知属性
ln.soundName = @"click.wav"; // 音效文件名
// 通知的具体内容
ln.alertBody = @"重大新闻:小韩哥的博客又更新了,赶快进来看看吧!....";
// 锁屏界面显示的小标题,完整标题:(“滑动来”+小标题)
ln.alertAction = @"查看新闻吧";
// 设置app图标数字
ln.applicationIconBadgeNumber = 10;
// 设置app的额外信息
ln.userInfo = @{
@"icon":@"text.png",
@"title":@"重大新闻",
@"time":@"2016-02-28",
@"body":@"重大新闻:小韩哥的博客又更新了,赶快进来看看吧!"
};
// 设置重启图片
ln.alertLaunchImage = @"101339g76j7j9t2zgzdvkj.jpg";
// 设置重复发出通知的时间间隔
// ln.repeatInterval = NSCalendarUnitMinute;
// 3.调度通知(启动任务,在规定的时间发出通知)
[[UIApplication sharedApplication]scheduleLocalNotification:ln];
// 直接发出通知没意义
// [[UIApplication sharedApplication]presentLocalNotificationNow:ln];
}
}
- (IBAction)noSchedule:(UIButton *)sender
{
// [[UIApplication sharedApplication]cancelAllLocalNotifications];
// 已经发出且过期的通知会从数组里自动移除
NSArray *notes = [UIApplication sharedApplication].scheduledLocalNotifications;
NSLog(@"%@",notes);
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(UILocalNotification *)note
{
DetailViewController *detailVC = segue.destinationViewController;
detailVC.userInfo = note.userInfo;
}
@end
2.通知详情页面设置基本属性:
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.h
#import
@interface DetailViewController : UIViewController
@property (nonatomic, strong) NSDictionary *userInfo;
@end
.m
#import "DetailViewController.h"
@interface DetailViewController ()
@property (weak, nonatomic) IBOutlet UILabel *userInfoContent;
@end
@implementation DetailViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.userInfoContent.text = self.userInfo[@"body"];
}
- (void)setUserInfo:(NSDictionary *)userInfo
{
_userInfo = userInfo;
}
@end
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//注册本地通知
if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]){
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
// NSLog(@"-----didFinishLaunchingWithOptions---");
UILabel *label = [[UILabel alloc]init];
label.frame = CGRectMake(0, 64, 320, 100);
label.backgroundColor = [UIColor redColor];
label.font = [UIFont systemFontOfSize:11];
label.numberOfLines = 0;
label.textColor = [UIColor whiteColor];
label.text = [launchOptions description];
[[[self.window.rootViewController.childViewControllers firstObject] view]addSubview:label];
UILocalNotification *note = launchOptions[UIApplicationLaunchOptionsURLKey];
if (note) {
label.text = @"点击本地通知启动的程序";
}else{
label.text = @"直接点击app图标启动的程序";
}
self.label = label;
return YES;
}
/**
* 当用户点击本地通知进入app的时候调用(app当时并没有被关闭)
* 若app已关闭不会被调用此方法
*/
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
self.label.text = @"点击通知再次回到前台";
ViewController *homeVC = [self.window.rootViewController.childViewControllers firstObject];
// [homeVC performSegueWithIdentifier:@"toHome" sender:notification];
[homeVC performSegueWithIdentifier:@"toHome" sender:notification];
}
三种情况展示:(重要)
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1.程序运行在后台
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Demo下载地址Github: https://github.com/XiaoHanGe/LocalNotification
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