In my appController's ViewDidLoad, I have done some thing as below
- (void)viewDidLoad
{
self.overlayViewController =
[[[OverlayViewController alloc] initWithNibName:#"OverlayViewController" bundle:nil] autorelease];
// as a delegate we will be notified when pictures are taken and when to dismiss the image picker
self.overlayViewController.delegate = self;
self.capturedImages = [NSMutableArray array];
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
// camera is not on this device, don't show the camera button
NSMutableArray *toolbarItems = [NSMutableArray arrayWithCapacity:self.myToolbar.items.count];
[toolbarItems addObjectsFromArray:self.myToolbar.items];
[toolbarItems removeObjectAtIndex:2];
[self.myToolbar setItems:toolbarItems animated:NO];
}
}
I have two methods as below,
- (IBAction)cameraAction:(id)sender
{
[self showImagePicker:UIImagePickerControllerSourceTypeCamera];
}
- (void)showImagePicker:(UIImagePickerControllerSourceType)sourceType
{
if (self.imageView.isAnimating)
self.imageView.stopAnimating;
if (self.capturedImages.count > 0)
[self.capturedImages removeAllObjects];
if ([UIImagePickerController isSourceTypeAvailable:sourceType])
{
[self.overlayViewController setupImagePicker:sourceType];
[self presentModalViewController:self.overlayViewController.imagePickerController animated:YES];
}
}
Now as I click the button, the method will launch the class showing custom view, I want to call this without clicking the button, what should I do ?
I wrote the button coding directly in ViewDidLoad, but not working at all
This code, I took from apple's documentation as example
Help !
If I understand correctly, you are wanting to show a view?
If so you could push using:
[self.navigationcontroller pushviewcontroller:YOURVIEWCONTROLLER animated:YES];
Or you could present it using:
[self presentModalViewControllerpushviewcontroller:YOURVIEWCONTROLLER animated:YES];
Related
I have created a mapview, with page curl feature in it. The mapview is having a toolbar, with a page curl button. On clicking the button, the mapview page curls. Here is the code.
-(IBAction) onPageCurl:(id)sender{
pageCurlViewController = [[MyMapViewPageCurlViewController alloc] initWithNibName:#"MyMapViewPageCurlViewController" bundle:nil];
[pageCurlViewController.navigationController.toolbar setHidden:NO];
[pageCurlViewController setModalTransitionStyle:UIModalTransitionStylePartialCurl];
[pageCurlViewController setToolbarItems:toolbarItems];
[[self navigationController] presentModalViewController:pageCurlViewController animated:YES];
[pageCurlViewController getMapView:&mapView];
[pageCurlViewController release];
}
As the mapview page curls, I have a new viewcontroller underneath it. The new view controller has a segmented control with 3 segments.
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
[self.navigationController.toolbar setHidden:NO];
[directionSearchSegmentedControl addTarget:self action:#selector(segmentAction:) forControlEvents:UIControlEventValueChanged];
directionSearchSegmentedControl.selectedSegmentIndex = selectedIndex;
UIBarButtonItem *directionSearchSegmentedControlButton = [[[UIBarButtonItem alloc] initWithCustomView:directionSearchSegmentedControl] autorelease];
NSArray *toolbarItems = [NSArray arrayWithObjects: navigatorButton , flexibleSpace, directionSearchSegmentedControlButton, flexibleSpace, pageCurlButton, nil];
[self setToolbarItems:toolbarItems];
[self.navigationController.toolbar setHidden:NO];
}
I have standard/satellite/hybrid view of the map on clicking each segments in the segmented controller.
- (void)segmentAction:(id)sender
{
[self dismissModalViewControllerAnimated:YES];
if([sender selectedSegmentIndex] == 0){
selectedIndex = 0;
pageCurlMapView.mapType = MKMapTypeStandard;
}
if([sender selectedSegmentIndex] == 1){
selectedIndex = 1;
pageCurlMapView.mapType = MKMapTypeSatellite;
}
if([sender selectedSegmentIndex] == 2){
selectedIndex = 2;
pageCurlMapView.mapType = MKMapTypeHybrid;
}
if([sender selectedSegmentIndex] == 2){
}
directionSearchSegmentedControl.momentary = YES;
selectedIndex = directionSearchSegmentedControl.selectedSegmentIndex;
}
The page curl feature is working fine. As the page curls, as mentioned before, I have a segmented control in the new view. But the the segmented control is not working properly in IOS 6. I have debugged and checked. On the click of the segments, the control doesn't enter the event method.
Its still working fine in the previous versions of IOS, but not in IOS 6. Cant figure out, what is wrong. Help needed.
If you look at the Xcode console when the app launches, do you see a message like this:
Applications are expected to have a root view controller at the end of application launch
If so, then your you problem could be due to changes in how the root view controller needs to be set up for iOS 6.
See here for info on how to address the problem.
Sorry if this is kinda late, but I have been working on something similar in my app. Honestly, I just used a simple switch method in order to change the map type. The code is below.
- (IBAction)toggle:(id)sender {
switch ([sender selectedSegmentIndex]) {
case 0:
{
[self.mapView setMapType:MKMapTypeStandard];
}break;
case 1:
{
[self.mapView setMapType:MKMapTypeHybrid];
}break;
case 2:
{
[self.mapView setMapType:MKMapTypeSatellite];
}break;
}
}
Now I have not tried using this with multiple view controllers so this may only work with the one view controller. I just started programming on iOS so bear with me.. I'm gonna try to add the page curl effect to my app but all I have so far is a map view and a button that when it's pushed, zooms into the users location and the user is able to change the map type..
P.S. This is a Segmented Control set as a Value Changed action named "toggle" if that helps...
i have added a UIPopover to my navigationbar when the user touches the rightbarbuttonitem.
I want to know whats the cleanest coding for showing and dismissing the popover. With the code below, it works, but not correct.
If the user touches the rightbarbuttonitem first, the popover appears. Now he can choose a cell,.. works. Or you can touch outside the popover and it disappears. Both ways correctly.
But when touching the rightbarbuttonitem and after that, the same touch on that icon again, you have to touch it twice to bring up that popover again. (Not on the first touch).
How should that correctfunction look like? Thanks for your time..
-(void) downloads:(UIBarButtonItem*)button{
NSLog(#"downloads");
if(tableViewController == nil) {
tableViewController = [[[TableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
self.popoverController = [[[UIPopoverController alloc] initWithContentViewController:tableViewController]autorelease] ;
[self.popoverController presentPopoverFromBarButtonItem:barButtonItem permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
tableViewController.delegate = self;
}else {
[self.popoverController dismissPopoverAnimated:NO];
tableViewController.delegate = nil;
tableViewController = nil;
//[self.popoverController release];
//self.popoverController = nil;
}
}
//delegate
-(void) selectedTable:(NSString*)text{
NSLog(#"selectedTable: %#", text);
[self.popoverController dismissPopoverAnimated:YES];
}
Comments
Your downloads: method checks for tableViewController value and make decision if UIPopoverController should be displayed or dismissed. But yours selectedTable: method does dismiss popoverController and does not set tableViewController to nil thus it doesn't work as expected by you.
And I also don't see UIPopoverControllerDelegate implementation, especially popoverControllerDidDismissPopover: which will tell you when UIPopoverController was dismissed (by touching outside your UIPopoverController for example).
Memory Management
Read memory management guide. [self.popoverController release] with self.popoverController = nil leads to crash - one release and second release during setting to nil. (I assume your popoverController property retains).
#Chiefly Izzy: Thanks for your help. You point me in the right direction.
Here´s the code i´m using. It works great. Hope that memory management is clean, too. Isn´t it?
-(void) downloads:(UIBarButtonItem*)button{
if([self.popoverController isPopoverVisible])
{
[self.popoverController dismissPopoverAnimated:YES];
[self.popoverController.delegate popoverControllerDidDismissPopover:self.popoverController];
return;
}
// PopOver Bookmarks-Icon
if(tableViewController == nil) {
tableViewController = [[PdfTableViewController alloc] initWithStyle:UITableViewStylePlain]; //autorelease];
self.popoverController = [[UIPopoverController alloc] initWithContentViewController:tableViewController]; //autorelease] ;
[self.popoverController presentPopoverFromBarButtonItem:barButtonItem permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
popoverController.delegate = self;
tableViewController.delegate = self;
}
/* Using "isPopoverVisible" from top or that else. both works
else {
[self.popoverController dismissPopoverAnimated:YES];
[self.popoverController.delegate popoverControllerDidDismissPopover:self.popoverController];
}
*/
}
-(void) selectedTableView:(NSString*)text{
NSLog(#"selectedTableView: %#", text);
[self.popoverController dismissPopoverAnimated:YES];
[self.popoverController.delegate popoverControllerDidDismissPopover:self.popoverController];
}
- (void)popoverControllerDidDismissPopover:(UIPopoverController *)popover{
NSLog(#"popoverControllerDidDismissPopover");
tableViewController.delegate = nil;
[tableViewController release];
tableViewController = nil;
popoverController.delegate = nil;
[popoverController release];
popoverController = nil;
}
I am trying to integrate new contact control in my app. Here is my code:
- (BOOL) personViewController:(ABPersonViewController*)personView shouldPerformDefaultActionForPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifierForValue
{
return YES;
}
-(IBAction)addcontact:(id)sender{
ABNewPersonViewController *picker = [[ABNewPersonViewController alloc] init];
UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:picker];
[self presentModalViewController:navigation animated:YES];
[picker release];
[navigation release];
}
It pops up new contact view but when I click Cancel or Done button nothing happens.
Can anyone help me?
Thanks in advance!
//Make sure your VC is an <ABNewPersonViewControllerDelegate>
-(void) newPersonViewController:(ABNewPersonViewController *)newPersonView
didCompleteWithNewPerson:(ABRecordRef)person {
if (person != nil) //nil = Cancel button clicked
{
//do something
}
//iOS6
[self dismissViewControllerAnimated:YES completion:nil];
}
You need to add methods that should be called when the cancel or done button is tapped and that method should call [self.navigationController dismissModalViewController
I have a MKMapView (also a UIPopoverControllerDelegate) with Annotations. This MapView has, in the MKTestMapView.h file, a UIPopoverController* popoverController defined in the #interface and a #property (nonatomic, retain) UIPopoverController* popoverController; defined outside of the #interface section. This controller is #synthesized in the MKTestMapView.m file and it is released in the - (void)dealloc section. The Annotations in this MapView have rightCalloutAccessoryViews defined to the following:
- (void)mapView:(MKMapView *)mapView2 annotationView:(MKAnnotationView *)aview calloutAccessoryControlTapped:(UIControl *)control{
...
CGPoint leftTopPoint = [mapView2 convertCoordinate:aview.annotation.coordinate toPointToView:mapView2];
int boxDY=leftTopPoint.y;
int boxDX=leftTopPoint.x;
NSLog(#"\nDX:%d,DY:%d\n",boxDX,boxDY);
popoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
popoverController.delegate = self;
CGSize maximumLabelSize = CGSizeMake(320.0f,600.0f);
popoverController.popoverContentSize = maximumLabelSize;
CGRect rect = CGRectMake(boxDX, boxDY, 320.0f, 600.0f);
[popoverController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
...
}
Now here comes the fun part. First of all, I am not sure if I need maximumLabelSize and the rect to be the same size. I am new to the popovercontroller so I am playing this by ear..
Okay, the popover shows. Now to dismissing it. I can click anywhere on mapView2 and the popover goes away...but I need the user to click a button in the view if they change anything. URGH!
The docs show:
To dismiss a popover programmatically,
call the dismissPopoverAnimated:
method of the popover controller.
Well, here is the problem: By definition of how the popoverController works, you are clicking inside the view of the displayed popover (to click the button) but have to trigger the dismissPopoverAnimated: method of the controller that launched this popover view, in my case, the popoverController inside the MKTestMapView.m file.
Now, having said all that, remember, [popoverController release] doesn't happen until:
- (void)dealloc {
[popoverController release];
[mapView release];
[super dealloc];
}
So, do i just do the following inside the button (messy but may work):
(Assuming my popover view is a TableView) In the:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
MKTestMapView * mKTestMapView = [[MKTestMapView alloc] init];
[[mKTestMapView popoverController].dismissPopoverAnimated:YES];
}
Here is my issue: I cannot figure out whether doing the above gives me a reference (if there is such a thing) to the existing view that is on the screen -- and therefore the view that is the owner of that popoverController. If it is as simple as
[[[self parentView] popoverController].dismissPopoverAnimated:YES];
I will shoot myself cos I don't think that is the correct syntax either!
This should be easy...yet I am lost. (probably just frustrated with so many iPad differences that I am learning).
Can anyone explain more?
I had the same problem... I had a neat "close" button (X) in the top of my view loaded by the popover, but it didn't work. In my universal app it will be presented as a new view, so that code should stay.
What I did now was that I added the following to my detailedPinView (the view the popover loads):
in the detailedPinView.h file:
#interface detailedPinView : UIViewController {
[...]
UIPopoverController *popover;
[...]
}
-(void)setPopover:(UIPopoverController*)aPopover;
In the detailedPinView.m file:
- (void)setPopover:(UIPopoverController*)aPopover
{
popover = aPopover;
}
The X button closes the view using an IBAction, this is what I did there:
In the detailedPinView.m file:
-(IBAction)releaseDetailedView:(UIButton *)sender
{
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
if (popover != nil)
{
[popover dismissPopoverAnimated:YES];
}
else {
NSLog(#"Nothing to dismiss");
}
}
else{
[self.parentViewController dismissModalViewControllerAnimated: YES];
}
}
In the class loading the my map and the popover view I added the following code:
[...]
-(void)mapView:(MKMapView *)theMapView annotationView:(MKAnnotationView *)pin calloutAccessoryControlTapped:(UIControl *)control
{
UIViewController *detailController = [[detailedPinView alloc] initWithNibName:#"detailedPinView"
bundle:nil
annotationView:pin];
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
UIPopoverController* aPopover = [[UIPopoverController alloc] initWithContentViewController:detailController];
[aPopover setDelegate:self];
[aPopover setPopoverContentSize:CGSizeMake(320, 320) animated:YES];
[detailController setPopover:aPopover];
[detailController release];
[mapView deselectAnnotation:pin.annotation animated:YES];
self.popoverController = aPopover;
[mapView setCenterCoordinate:pin.annotation.coordinate animated:YES];
[self.popoverController presentPopoverFromRect:CGRectMake(382,498,0,0) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
else
{
[self presentModalViewController: detailController animated:YES];
}
[detailController release];
}
[...]
I don't know if the was the answer you were hoping for, I think it might be a bit of a messy way to do it... but giving the time schedule this worked like a charm :)
Here is another simple solution.
I found that we should follow the following steps for clearly dismissing popovers.
dismiss a popover.
release a view loaded by the popover.
Before iOS8, almost all of us may release a view loaded by a popover first, and then we programmatically dismiss the popover.
However, in iOS8, we do the steps in revers.
Before iOS8, my code of dismissing a popover
// creating a popover loading an image picker
picker = [[UIImagePickerController alloc] init];
...
pickerPopover = [[UIPopoverController alloc] initWithContentViewController:picker];
[pickerPopover presentPopoverFromRect:aFrame inView:aView permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
// dismissing the popover
[picker.view removeFromSuperview]; // (1) release a view loaded by a popover
[picker release], picker = nil;
if( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
[pickerPopover dismissPopoverAnimated:YES]; // (2) dismiss the popover
}
In iOS8, the dismissing code part should be changed as below,
if( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
[pickerPopover dismissPopoverAnimated:YES]; // (2) dismiss the popover first
}
[picker.view removeFromSuperview]; // (1) and then release the view loaded by the popover
[picker release], picker = nil;
I have an iPhone app that uses an action sheet but I can't work out how to make one of the buttons open a new view when pressed. I know how to implement the action sheet - that's not a problem, its the actual action of opening the new view that's the issue.
Any help would be greatly appreciated. Thanks.
I usually just create a new method and have the action sheet do it.
For instance:
switch (buttonIndex) {
case 0:
[self openModalView];
break;
}
Then, in your openModalView method:
- (void)openModalView {
MyModalViewController *myController = [[MyModalViewController alloc] init];
[self presentModalViewController:myController animated:YES];
[myController release];
}
In the UIAlertView's -didDismissWithButtonIndex, instantiate your new view controller and push it onto the navigation stack:
- (void)alertView:(UIAlertView *)alertView
didDismissWithButtonIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 0)
{
NewViewController *controller = [[NewViewController alloc] init];
[[self navigationController] pushViewController:controller animated:YES];
[controller release], controller = nil;
}
}