I have an Iphone application in which when i am pressing a button it shows an alertview to chose the background.whichever background user is chosing will be played as the background of the audio clips.But now i need to add another alert before i am showing this alert for giving some warning.after that only i need to pop the second one.but i was done that chosing alert in the didappear of that viewcontroller and set it as a Uialertview delegate.and on the button actions i was doing different actions.Can anybody help me on achieving this?
proAlertView *loginav1=[[proAlertView alloc] initWithTitle:#"title" message:#"Choose a Background to play with this program?" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Field",#"Beach", #"Stars",nil];
[loginav1 setBackgroundColor:[UIColor colorWithRed:0.129 green:0.129 blue:0.129 alpha:1.0] withStrokeColor:[UIColor colorWithHue:0.625 saturation:0.0 brightness:0.8 alpha:0.8]];
[loginav1 show];
- (void)alertView:(UIAlertView *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
// the user clicked one of the OK/Cancel buttons
if (buttonIndex == 0)
{
//[self play];
//moviePlayer.scalingMode=MPMovieScalingModeAspectFill;
if(actionSheet.tag==123)
{
[self backButtonPressed];
}
}
else if (buttonIndex == 1)
{
videoFile = [[NSBundle mainBundle] pathForResource:#"video-track" ofType:#"mp4"];
[self play];
moviePlayer.scalingMode=MPMovieScalingModeAspectFill;
}
how can i include another alert before this is my question?
Initialize first Alertview
UIAlertView *al1 = [[UIAlertView alloc] initWithTitle:#"Warning!" message:#"Warning Msg!!!" delegate:self cancelButtonTitle:#"Ok" otherButtonTitles: nil];
al1.tag=1;
al1.delegate=self;
[al1 show];
Implement Delegate method
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if(alertView.tag==1){
// implement button events for first Alertview
if(buttonIndex==1){
//First button clicked of first Alertview
UIAlertView *al2 = [[UIAlertView alloc] initWithTitle:#"Choose BG" message:#"Choose BG?" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"1",#"2",#"3", nil];
al2.tag=2;
al2.delegate=self;
[al2 show];
}
}
if(alertView.tag==2){
// implement button events for second Alertview
if(buttonIndex==1){
// First button clicked second Alertview.
}
}
}
Controller Class header
#interface ViewController : UIViewController<UIAlertViewDelegate>{
}
Hope this will fulfill your need !
You can do like this, first display warning message in alertview and when user click OK in alertview then in alertview delegate method write code to display second alertview where user can choose background.
Related
I saw multiple questions about how to detect when the user is pressing the "Back" button on a UINavigationBar, but the answers does not solved my problem.
Indeed, I want to display a UIAlertView when user is pressing the UINavigationBar "Back" button, to ask him "Do you want to save the changes ?".
I can display a UIAlertView when the user is pressing the "Back" button (with the following snippet), but the previous view is popped in the same time. And I don't want this behaviour ! I just want that the app WAIT the user answer BEFORE pop the previous view...
-(void) viewWillDisappear:(BOOL)animated
{
if ([self isMovingFromParentViewController])
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Avertissement" message:#"Voulez-vous enregistrer les modifications effectuées ?" delegate:self cancelButtonTitle:#"Retour" otherButtonTitles:#"Oui", #"Non", nil];
[alert show];
}
[super viewWillDisappear:animated];
}
Thanks for you help...
I Suggest you using you own LeftbarButtonItem instead of default Back-button event at viewWillDisappear like this:-
- (void)viewDidLoad
{
UIBarButtonItem *left=[[UIBarButtonItem alloc]initWithTitle:#"Back" style:UIBarButtonItemStyleBordered target:self action:#selector(actionBack:)];
self.navigationItem.leftBarButtonItem = left;
[super viewDidLoad];
}
- (IBAction)actionBack:(id)sender {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Avertissement" message:#"Voulez-vous enregistrer les modifications effectuées ?" delegate:self cancelButtonTitle:#"Retour" otherButtonTitles:#"Oui", #"Non", nil];
[alert show];
}
And use alert Delegate clickedButtonAtIndex
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if(alertView.tag == 1)
{
// set your logic
}
}
I have a very simple process running where after each round of a simple game the scores are calculated, labels updated and all the normal, very simple stuff. I have a UIAlertView that informs the player of how s/he performed. I use a UIAlertViewDelegate to postpone all the updates, resetting of controls etc. till after the UIAlertView is dismissed. The methods are [startNewRound],[startOver] and [updateLabels]. It's fairly obvious what they all do. Anyway, when the user hits round ten, I've made another UIAlertView that informs the player that the game has ended and shows the overall score. Again, I hoped to use a delegate to postpone the resets till after the AlertView is dismissed. The only problem is, with the endGame AlertView, it seems to be using the first AlertView's delegate method causing the game to continue with a new round and not start from the beginning. I hope this makes sense. Anyway, here are snippets of my code.
if (round == 10){
UIAlertView *endGame = [[UIAlertView alloc]
initWithTitle: #"End of Game"
message: endMessage
delegate:self
cancelButtonTitle:#"New Game"
otherButtonTitles:nil];
[endGame show];
}
else {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle: title
message: message
delegate:self
cancelButtonTitle:#"Next"
otherButtonTitles:nil];
[alertView show];
}
And then the delegate methods:
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
[self startNewRound];
[self updateLabels];
}
- (void)endGame:(UIAlertView *)endGame didDismissWithButtonIndex:(NSInteger)buttonIndex
{
[self startOver];
}
So there it is. As I mentioned, the endGame AlertView appears to be using alertView's delegate, thus not activating the [self startOver] method. All the methods are working, it's just the AlertView is using the incorrect delegate method. Regards, Mike
Change your code like this,
if (round == 10){
UIAlertView *endGame = [[UIAlertView alloc]
initWithTitle: #"End of Game"
message: endMessage
delegate:self
cancelButtonTitle:#"New Game"
otherButtonTitles:nil];
endGame.tag = 111;
[endGame show];
}
else {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle: title
message: message
delegate:self
cancelButtonTitle:#"Next"
otherButtonTitles:nil];
alertView.tag = 222;
[alertView show];
}
and delegate method as,
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
if(alertView.tag == 111)
{
[self startNewRound];
[self updateLabels];
}
else if(alertView.tag == 222)
{
[self startOver];
}
}
You cant have two delegate method for dismisswithbuttonindex, you need to handle this situation with tag.
Give both alert view a different tag and check it on delegate object. Thus you can differentiat the both alert view.
I have a Navigation Controller and when I press the back button I don't want to pop the view but I want to show an UIAlertView.I just want to pop the view after having make a choice on the UIAlertView!
How can I do?
I tried to catch the event 'back button pressed' but with no results :(
Create a UIBarButtonItem inside viewDidload and added it to the navigation bar
UIBarButtonItem *backButton=[[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStyleBordered target:self action:#selector(backButtonClicked)];
self.navigationItem.leftBarButtonItem=backButton;
create a method which will be called when the backButton is clicked
-(void)backButtonClicked{
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:#"Pop View!" message:#"Are you sure?" delegate:self cancelButtonTitle:#"No" otherButtonTitles:#"Yes", nil];
[alert show];
}
write this UIAlertView delegate method which will be called when the button in the UIAlertView is clicked
-(void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex{
if (buttonIndex==1) {
[self.navigationController popViewControllerAnimated:YES];
}
}
NOTE: Dont forget to add UIAlertView delegate in the header file <UIAlertViewDelegate>
You can check for back-button press in the viewWillDisappear method like this (got it from here):
-(void)viewWillDisappear:(BOOL)animated {
if ([self.navigationController.viewControllers indexOfObject:self]==NSNotFound && self.isBackButtonPressed) {
// back button was pressed. We know this is true because self is no longer
// in the navigation stack.
}
[super viewWillDisappear:animated];
Hope this helps!
Implement pop in UIAlertview delegate method clickedButtonAtIndex:
The back button press need to implement only showing the UIAlertview
refer this
follow this code
in button action.
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Message" message:#"Do you want to open?" delegate:self cancelButtonTitle:#"NO" otherButtonTitles:#"YES", nil];
[alert show];
//Alert View delegate method
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if(buttonIndex==0)//NO
{
//your code
}
else if(buttonIndex==1)//YES
{
// your code
}
}
I want to show nested alertViews. Problem, which i am facing in nested alertViews is that when i click an "add" button of first alertView it shows the second alertView, in second alertView i have a textField and a "Save" button. I want to save data when i click on save button and then reload UITableViewData, which is already in the first alertView.
I am new in iphone, so please help me.
You should create your alert views with different tag property so that in delegate method you can easily differentiate which alert view is appeared on the screen.
For example :
UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:#"Info"
message:#"Message" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil] autorelease];
[alert setTag: 1001]; // give different tag to different alert views
[alert show];
[alert release];
Now in delegate method :
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (alertView.tag == 1001)
{
// do something
}
eles if (alertView.tag == 1002)
{
}
}
Hope it helps you..
UIActionSheet, how to dismiss it with a single click?
I have to click a button 2 times so it gets dismissed, what should I do to make it dismissble after the first click?! Here is my code:
-(void)buttonHeld:(id)sender
{
UIActionSheet *popupQuery = [[UIActionSheet alloc] initWithTitle:#"Delete Contact?!" delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:#"Delete" otherButtonTitles: nil];
popupQuery.actionSheetStyle = UIActionSheetStyleBlackOpaque;
[popupQuery showInView:self.view];
[popupQuery release];
}
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex == 0) {
NSLog(#"Delete button clicked Button Clicked");
else if (buttonIndex == 1) {
NSLog(#"Cancel Button Clicked");
}
}
Based on the name of your method "buttonHeld", my assumption is that you are trying to launch the UIActionSheet from a UILongPressGestureRecognizer. You will need to use the code listed below if you want it to work as expected. The problem stems from UILongPressGestureRecognizer being a 'continuous gesture' which fires multiple times and progresses through several different states. You'll need to monitor for the correct state and then load your UIActionSheet. I had the exact same problem and this is what solved it for me.
- (IBAction) buttonHeld:(UILongPressGestureRecognizer *)sender {
if (sender.state == UIGestureRecognizerStateBegan) {
UIActionSheet *popupQuery = [[UIActionSheet alloc]
initWithTitle:#"Delete Contact?!"
delegate:self
cancelButtonTitle:#"Cancel"
destructiveButtonTitle:#"Delete"
otherButtonTitles:nil];
popupQuery.actionSheetStyle = UIActionSheetStyleBlackOpaque;
[popupQuery showInView:self.view];
}
}
This is how i dismiss the actionsheet...
[actionSheet dismissWithClickedButtonIndex:0 animated:YES];
Hope this helps
It took me a few taps to get it to cancel as well. The problem ended up being which view I attached it to.
[action showInView:self.view];
self.view was only referenced in IB. I changed it to a different view and it worked.
No need to declare in this delegate when you alloc the actionsheet you have make cancel Button that by default dismiss the ActionSheet some thing like this
[[UIActionSheet alloc] initWithTitle:#"" delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:btnTitle,#"Send for a date range",nil];
from any other event you can use this method
- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated
In your code there is a syntax error you are putting else block in if block.
If u're developing for the iphone it's always safe to use :
[popupQuery showFromBarButtonItem:sender animated:YES]
or showFromTabBar: or showFromToolBar etc. instead of showinView.