Question

I am using a custom class very similar to the Tweet Bot info panels in my application. I have this class working perfectly when a button is tapped, however what I am trying to achieve is getting this ‘alert panel’ to show when my application finishes launching or comes from being idle.

To call this class using a standard I am using the following code;

-(IBAction) button1Tapped:(id) sender
{
    [MKInfoPanel showPanelInView:self.view 
                            type:MKInfoPanelTypeInfo 
                           title:@"Tweet Posted!" 
                        subtitle:nil 
                       hideAfter:2];
}

But I am having issues including this in my main AppDelegate.m. I keep getting an error message of ‘Property type view not found in Total_HealthAppDelegate when i use the following;

- (void)applicationWillEnterForeground:(UIApplication *)application
{

        [MKInfoPanel showPanelInView:self.view
                                type:MKInfoPanelTypeInfo 
                               title:@"Total:Health Support" 
                            subtitle:@"Welcome"
                           hideAfter:3];

}

Any advice would be great

Answer 1

Try using self.window in place of self.view when this code is inside the AppDelegate. Also be sure to include the appropriate header files and declare the class.

However, I recommend you put this code into the viewController that first wakes up instead. Here’s one way to accomplish this.

Set up a BOOL in NSUserDefaults called justWokeUp. Then, in the appDelegate, set it to YES when the app wakes up:

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
    [standardUserDefaults setBool:YES forKey:@"justWokeUp];
}

Now, in any viewController that might be the first to load when the app resumes, check this value to see whether you should send the alert:

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
    if ([standardUserDefaults boolForKey:@"justWokeUp"]) {

        [MKInfoPanel showPanelInView:self.view
                                type:MKInfoPanelTypeInfo 
                               title:@"Total:Health Support" 
                            subtitle:@"Welcome"
                           hideAfter:3];

        [standardUserDefaults setBool:NO forKey:@"justWokeUp"];


}