通过UISwitch启用推送通知
答
你不能直接从应用程序那样做。如果你想这样做,你需要让UISwitch将信息发送到后端,将这些信息存储在数据库中,并停止向该用户发送推送通知。
答
应用程序首次启动时会为推送通知(APN)注册。一旦交换机启动后,您就无法使用交换机初始化APN。但是,您可以编写您的应用程序,以便在收到APN后,交换机可以选择在用户界面上执行“某些事情”。
例如,你可以有这样的代码:
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];
NSString *alert = [apsInfo objectForKey:@"alert"];
// do what you need with the data...
[[NSNotificationCenter defaultCenter] postNotificationName:@"ReceivedNotificationAlert" object:self];
}
您可以使用UISwitch要么做一些事情,或者不与NSNotification“ReceivedNotificationAlert”。例如:
if(switchAPNprocess.on){
// process APN
}
else {
// ignore APN
}
答
You can also do it in the following way.
create a IBOutlet for UISwitch
@property (strong, nonatomic) IBOutlet *pushNotificationSwitch;
and in Action method, store the value in NSUserDefaults.
- (IBAction)pushNotificationSwitchChanged:(id)sender
{
NSNumber *switch_value = [NSNumber numberWithBool:[self.pushNotificationSwitch isOn]];
[[NSUserDefaults standardUserDefaults] setObject:switch_value forKey:RECIEVE_APNS];
[[NSUserDefaults standardUserDefaults] synchronize];
}
and check it in viewdidload.
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
NSNumber *sett = [[NSUserDefaults standardUserDefaults] valueForKey:RECIEVE_APNS];
if([sett boolValue])
{
[self.pushNotificationSwitch setOn:YES];
}
else{
[self.pushNotificationSwitch setOn:NO];
}
}
and In AppDelegate.m, add the following code
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSNumber *sett = [[NSUserDefaults standardUserDefaults] objectForKey:RECIEVE_APNS];
if([sett boolValue])
{
int currentBadgeCount = [[NSUserDefaults standardUserDefaults] integerForKey:@"BadgeCount"];
//Set the baadge count on the app icon in the home screen
int badgeValue = [[[userInfo valueForKey:@"aps"] valueForKey:@"badge"] intValue];
[UIApplication sharedApplication].applicationIconBadgeNumber = badgeValue + currentBadgeCount;
[[NSUserDefaults standardUserDefaults] setInteger:badgeValue + currentBadgeCount forKey:@"BadgeCount"];
NSString *alertString = [[userInfo objectForKey:@"aps"] objectForKey:@"alert"];
NSString *playSoundOnAlert = [NSString stringWithFormat:@"%@", [[userInfo objectForKey:@"aps"] objectForKey:@"sound"]];
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],playSoundOnAlert]];
NSError *error;
if (alertString.length > 0)
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"App Name" message:alertString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer.numberOfLoops = 1;
[audioPlayer play];
[alert show];
}
}
}
enter code here
不......那不是我的意思。我希望交换机初始化推送通知。我激活交换机,然后在应用程序注册推送通知时获取库存UIAlertView – 2013-05-07 20:23:27