ios-本地推送

什么是推送？推送能干什么？推送有哪些种类 ？

今天给大家简单的讲解一些本地推送 

对于新手 学习  要养成一个提问题的好习惯

然后再沿着这一条线向下学习 

本地推送：可以在程序进入后台 程序关闭的情况下收到消息

本地推动分为两个步骤

1.注册类型

2.添加推送 

我们需要在appdelegate中注册本地推送

#import "AppDelegate.h"@interface AppDelegate ()@end@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    // Override point for customization after application launch.   //注册本地推送    [self registerLocalNotification];    return YES;}- (void)registerLocalNotification{    /**     *  注册本地推送     */    if ([UIDevice currentDevice].systemVersion.floatValue >=8.0) {                UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge|UIUserNotificationTypeSound|UIUserNotificationTypeAlert categories:nil];        //8.0必须注册的        [[UIApplication sharedApplication]registerUserNotificationSettings:setting];    }        //8.0以下    else    {        [[UIApplication sharedApplication]registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound|UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeNewsstandContentAvailability];    }    }/** *  收到本地会触发 *  1.如果app打开状态 直接会触发 2.r如果程序在后台 点击通知 打开app 会触发  3.如果kill 点击通知打开app 不会触发此方法  *  @param application */- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{    NSLog(@"收到本地推送");}- (void)applicationWillResignActive:(UIApplication *)application {    // 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.    // 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.}- (void)applicationDidEnterBackground:(UIApplication *)application {    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.}- (void)applicationWillEnterForeground:(UIApplication *)application {    // 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.}- (void)applicationDidBecomeActive:(UIApplication *)application {    // 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.}- (void)applicationWillTerminate:(UIApplication *)application {    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.    // Saves changes in the application's managed object context before the application terminates.    [self saveContext];}#pragma mark - Core Data stack@synthesize managedObjectContext = _managedObjectContext;@synthesize managedObjectModel = _managedObjectModel;@synthesize persistentStoreCoordinator = _persistentStoreCoordinator;- (NSURL *)applicationDocumentsDirectory {    // The directory the application uses to store the Core Data store file. This code uses a directory named "com.baidu.__" in the application's documents directory.    return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];}- (NSManagedObjectModel *)managedObjectModel {    // The managed object model for the application. It is a fatal error for the application not to be able to find and load its model.    if (_managedObjectModel != nil) {        return _managedObjectModel;    }    NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"__" withExtension:@"momd"];    _managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];    return _managedObjectModel;}- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {    // The persistent store coordinator for the application. This implementation creates and return a coordinator, having added the store for the application to it.    if (_persistentStoreCoordinator != nil) {        return _persistentStoreCoordinator;    }        // Create the coordinator and store        _persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];    NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"__.sqlite"];    NSError *error = nil;    NSString *failureReason = @"There was an error creating or loading the application's saved data.";    if (![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]) {        // Report any error we got.        NSMutableDictionary *dict = [NSMutableDictionary dictionary];        dict[NSLocalizedDescriptionKey] = @"Failed to initialize the application's saved data";        dict[NSLocalizedFailureReasonErrorKey] = failureReason;        dict[NSUnderlyingErrorKey] = error;        error = [NSError errorWithDomain:@"YOUR_ERROR_DOMAIN" code:9999 userInfo:dict];        // Replace this with code to handle the error appropriately.        // abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);        abort();    }        return _persistentStoreCoordinator;}- (NSManagedObjectContext *)managedObjectContext {    // Returns the managed object context for the application (which is already bound to the persistent store coordinator for the application.)    if (_managedObjectContext != nil) {        return _managedObjectContext;    }        NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];    if (!coordinator) {        return nil;    }    _managedObjectContext = [[NSManagedObjectContext alloc] init];    [_managedObjectContext setPersistentStoreCoordinator:coordinator];    return _managedObjectContext;}#pragma mark - Core Data Saving support- (void)saveContext {    NSManagedObjectContext *managedObjectContext = self.managedObjectContext;    if (managedObjectContext != nil) {        NSError *error = nil;        if ([managedObjectContext hasChanges] && ![managedObjectContext save:&error]) {            // Replace this implementation with code to handle the error appropriately.            // abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.            NSLog(@"Unresolved error %@, %@", error, [error userInfo]);            abort();        }    }}@end

然后在控制器中添加推送 

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    /*     本地推送（可以在程序进入后台 程序关闭的情况下收到消息）     1.注册类型      2.添加推送     */        // Do any additional setup after loading the view, typically from a nib.}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (IBAction)iosNotification:(id)sender {        /**     *  本地推送     */    //初始化    UILocalNotification *localNotification = [[UILocalNotification alloc]init];        //设置推送内容    localNotification.alertBody = @"下雪啦";    //执行时间    localNotification.fireDate = [NSDate dateWithTimeInterval:3 sinceDate:[NSDate date]];    //点击通知进入app 的启动图片    localNotification.alertLaunchImage = @"new_feature_1.png";#if 0    //设置声音    localNotification.soundName = UILocalNotificationDefaultSoundName;#endif        //自定义声音 格式最好是wav 不能超过30秒    localNotification.soundName = @"资源名字";        //执行当前推送    [[UIApplication sharedApplication]scheduleLocalNotification:localNotification];    }@end