How show a alertview just when the app open, load...
Like everytime that the user open the app, he see the alert ....
write the alert statment in the following appDelegate method,
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIAlertView *alert_View = [[[UIAlertView alloc] initWithTitle:#"Your Title" message:#"Your Message" delegate:self cancelButtonTitle:nil otherButtonTitles:#"YES",#"NO",nil] autorelease];
[alert_View show];
}
Show the alertview in the application delegate class, in applicationDidFinishLaunching: and in applicationWillEnterForeground:
#Rafeel put this UIAlertView in your didFinishLaunchingWithOptions method of your AppDelegate and you will always get the UIAlertView when your app launches
UIAlertView *confirmAlertView=[[UIAlertView alloc]initWithTitle:#"Saved" message:#"Want to save!!" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:#"Cancel",nil];
[confirmAlertView show];
[confirmAlertView release];
Hope it Will Help u!
Related
I need help on dismissing a UIAlertView programmatically. Currently I have this
UIAlertView *alert1 = [[UIAlertView alloc]initWithTitle:#"title" message:#"message" delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
then later on I call this
[alert1 dismissWithClickedButtonIndex:0 animated:NO];
but nothing happens.
You need to set two things.
1. include your .h file : <UIAlertViewDelegate>
2. please follow below implementation...
UIAlertView *alert1 = [[UIAlertView alloc]initWithTitle:#"title" message:#"message" delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
[alert1 show];
[self performSelector:#selector(dismiss:) withObject:alert1 afterDelay:1.0];
the dismiss method will be...
-(void)dismiss:(UIAlertView*)alert
{
[alert dismissWithClickedButtonIndex:0 animated:YES];
}
I hope this will help you.
I encountered this problem too.
In my case, for some reason calling:
[alert dismissWithClickedButtonIndex:0 animated:NO];
didn't work always (yes, even calling it on UI thread and yes, alert != nil), instead simply setting the animated flag to YES it worked:
[alert dismissWithClickedButtonIndex:0 animated:YES];
Maybe it's an Apple bug...
you should display it first:
UIAlertView *alert1 = [[UIAlertView alloc]initWithTitle:#"title" message:#"message" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:nil];
[alert1 show];
then in delegate method
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex{
if(buttonIndex==0){
// do something
}
}
The methods you called is correct.
I guess the alert1 is nil when your call the method dismissWithClickedButtonIndex:animated:
Try to check your variable alert1.
You can use the delegate method -alertView:didDismissWithButtonIndex: instead—it gets called once the alert view’s been removed from the screen, OR better approach is , use a background thread, e.g. with -performSelectorInBackground:withObject:, to handle whatever processing you need to do.
in my Alert View, there is two button, OK and Cancel. When the user click the OK button, the delegate method dismissWithClickedButtonIndex:animated get called, and if the index is 0, then i get called to a method to execute some code:
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Alert"
message:#"Are you sure you want to exit"
delegate:self cancelButtonTitle: #"OK"
otherButtonTitles: #"Cancel",nil];
[alert show];
[alert release];//release the reference
Delegate method:
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex{
if (buttonIndex==0) {
[self aMethod];
}
}
-(void)aMethod{
//Some useful code
}
Now, what i want to instead of all this, is to execute the code of the aMethod method in the AlertView directly, without referring to A delegate method and a method which get called, something like that:
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Alert"
message:#"Are you sure you want to exit"
delegate:self cancelButtonTitle: #"OK" //Put here some useful code
otherButtonTitles: #"Cancel",nil];
Is it possible?
Unfortunately this is not possible at this time (iOS 5.1). The AlertView class does not support blocks.
I made a pair of UIAlertView and UIActionSheet subclasses that do exactly that. Grab them here:
https://github.com/rydermackay/RMActionSheet
Use them like this:
RMAlertView *alertView = [RMAlertView alertViewWithTitle:#"Alert!" message:nil];
[alertView addButtonWithTitle:#"OK"
action:^{
NSLog(#"OK");
}];
[alertView addCancelButtonWithTitle:#"Cancel"
action:nil];
[alertView show];
EDIT:
From your comments it sounds like you're not familiar with blocks. Read this now. Seriously.
http://developer.apple.com/library/ios/#documentation/cocoa/Conceptual/Blocks/Articles/00_Introduction.html
This is a good one too:
http://www.mikeash.com/pyblog/friday-qa-2009-08-14-practical-blocks.html
In my application I have implemented the Push notification feature and I am getting the notifications. I used the following code in the appDelegate file.
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
for (id key in userInfo) {
NSMutableArray *array = [userInfo objectForKey:key];
NSString *message = [NSString stringWithFormat:#"%#",[array valueForKey:#"alert"]];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"iPhoneApp" message:message delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Ok", nil];
[alert show];
[alert release];
}
}
I want to perform actions on the OK button click event of the Push notification alert (when the app is running). I have three view controllers in this app. So in which class should I add the code
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex?
In the same class you set as the delegate of that particular UIAlertView. In your current case, the AppDelegate is the receiver of the -clickedButtonAtIndex:.
If you would like to receive the click events in one of the 3 controllers you have. You must set that particular controller as the delegate to your UIAlertView:
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"iPhoneApp" message:message delegate:myViewController cancelButtonTitle:#"Cancel" otherButtonTitles:#"Ok", nil];
[alert show];
[alert release];
As you see I assigned myViewController as the delegate. myViewController should conform to the UIAlertViewDelegate protocol and implement the -clickedButtonAtIndex: method. Now once you select one of the button's you will get the call in myViewController.
i have a project with many vie controller, in one of these i create and show a view alert. it's possible show alert in every view exclude one?
I need this because if you are in the alarm view controller you don't need to see the alert when alarm ring
i try this but not works!
// ALERT NOTIFICATION
if (!self.timerViewController) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Piccole Ricette" message:#"READY" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alertView show];
[alertView release];
}
In iOS you can test whether a ViewController 's view is visible by testing the view's window property. If the view is not visible the window property will be nil. So perhaps you can do something like this:
if (!self.timerViewController.view.window) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Piccole Ricette" message:#"READY" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alertView show];
[alertView release];
}
Is there a way to know for sure that the app has been launched from scratch, meaning it hasn't been awaked from the background but really started up out of nowhere including the display of Default.png or Default-iPad.png?
In your App delegate there is a method,
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:#"Only at launch" message:#"" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}