作者valda (valda)
看板MacDev
标题[问题] iOS notification
时间Thu Dec 11 16:01:58 2014
我在接收到notification的时候要侦测，以下几种情况
情况一：user没做任何动作，此时app在背景（UIApplicationStateBackground），
app在背景默默的更新资料
情况二：user正在使用app（UIApplicationStateActive），app在背景默默的更新
资料
情况三：used按下alert view，此时app正在背景，由背景带入前景
（UIApplicationStateInactive），app 需要push特定的view
但目前的状况是，我无法侦测出情况三，先把app缩到背景，push notification後，
按下alert view，会进去didReceiveRemoteNotification两次（是因为block的关系吗？
），第一次进去state为UIApplicationStateBackground，第二次进去刚开始是
UIApplicationStateInactive但後面又会变成UIApplicationStateBackground
有高手知道怎麽处理吗？
- (void)application:(UIApplication *)application didReceiveRemoteNotification:
(NSDictionary *)userInfo fetchCompletionHandler:(void (^)
(UIBackgroundFetchResult))completionHandler{
//app 正在前景或背景执行然後使用者按下alert view时
UIApplicationState state = [[UIApplication sharedApplication]
applicationState];
if (state==UIApplicationStateActive) {
NSLog(@"UIApplicationStateActive");
}else if(state==UIApplicationStateInactive) {
NSLog(@"UIApplicationStateInactive");
}else if(state==UIApplicationStateBackground) {
NSLog(@"UIApplicationStateBackground");
}
NSLog(@"didReceiveRemoteNotification started...");
NSLog(@"userInfo -> %@",userInfo);
NSString * objectId = userInfo[@"objectId"];
PFObject *pfObject=[PFQuery getObjectOfClass:@"TestTable" objectId:objectId];
TestTable *table = [TestTable MR_findFirstByAttribute:@"objectId" withValue:objectId];
__block TestTable *tempTable=nil;
if (table==nil && pfObject!=nil) {
[MagicalRecord saveWithBlock:^(NSManagedObjectContext *localContext) {
tempTable=[TestTable MR_createInContext:localContext];
tempTable.objectId=pfObject.objectId;
tempTable.subject=pfObject[@"subject"];
tempTable.content=pfObject[@"content"];
tempTable.isRead=[pfObject[@"isRead"] boolValue];
tempTable.isReceive=YES;
tempTable.updatedAt=pfObject.updatedAt;
tempTable.createdAt=pfObject.createdAt;
tempTable.receivedAt=[NSDate date];
[pfObject setObject:[NSNumber numberWithBool:YES] forKey:@"isReceive"];
[pfObject saveInBackground];
} completion:^(BOOL success, NSError *error) {
if (success) {
dispatch_async (dispatch_get_main_queue(), ^{
if (state==UIApplicationStateActive) {
NSLog(@"UIApplicationStateActive");
}else if(state==UIApplicationStateInactive) {
NSLog(@"UIApplicationStateInactive");
}else if(state==UIApplicationStateBackground) {
NSLog(@"UIApplicationStateBackground");
}
//Do something
if (state==UIApplicationStateInactive)
{
//Do checking here.
UIViewController *rootVC = self.window.rootViewController;
SWRevealViewController *swrVC = (SWRevealViewController *)rootVC;
UINavigationController *naVC = (UINavigationController *)swrVC.frontViewController;
UIViewController *currentVC = [naVC visibleViewController];
UIStoryboard *mainStoryboard=[UIStoryboard storyboardWithName:@"Main" bundle:nil];
ContentVC *contentVC=[mainStoryboard instantiateViewControllerWithIdentifier:@"ContentVC"];
TestTable *tt=[TestTable MR_findFirstByAttribute:@"objectId" withValue:objectId];
contentVC.testTable=tt;
NSLog(@"testTable content-> %@",tt.content);
NSLog(@"testTable subject-> %@",tt.subject);
NSLog(@"testTable objectId-> %@",tt.objectId);
NSLog(@"contentVC testTable content:%@",contentVC.testTable.content);
if ([currentVC isKindOfClass:[ContentVC class]]) {
[naVC popToRootViewControllerAnimated:NO];
[naVC pushViewController:contentVC animated:YES];
}
if ([currentVC isKindOfClass:[EAPMessageTVC class]]) {
[naVC pushViewController:contentVC animated:YES];
}
}
if (state == UIApplicationStateActive) {
[[NSNotificationCenter defaultCenter] postNotificationName:@"GetNotification" object:nil];
AudioServicesPlaySystemSound (1000);
}
completionHandler(UIBackgroundFetchResultNewData);
});
}
}];
}
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