I am developing an iPhone application using XCode and I am kinda stuck with the functionality described in the subject of this post.
I want the map(using MapKit) to only load and display after I click a button. So, what code should I have under that my "(IBAction) showMap" function?
Whatever I could find online talks about unhiding the map. I want to only load the map when a button is clicked rather than loading the map in the background and simply unhiding it the click of the the button. Thanks !
~Susanth
Your button click should open a new view, which contains Map. Since that view does not exist until it's loaded (viewDidLoad, viewWillAppear), you are not loading map or displaying it beforehands.
- (IBAction)showMap:(id)sender
{
self.mapController = [[MyMapViewController alloc]
initWithNibName:#"MyMapViewController" bundle:nil];
[self.mainView addSubview:mapController.view];
}
Many ways to do it... It takes time to load a map, so you might still consider loading it at background. Looks better (faster) for end-user.
use the below concept.
-(IBAction) showMap:(id)sender
{
// Add your Map to current view
[self.view addsubview:YOUR_MAPVIEW];
}
-(IBAction) hideMap:(id)sender
{
[YOURMAPVIEW removeFromSuperView];
}
Here you can create the MapView either from XIB file or by writing code.
Hope this helps.
Jim.
Related
I am building a PhoneGap app using Cordova 2.2 for IOS. I am experiencing some bizarre behavior when calling out to a native obj-c plugin I have written to show the MFMessageComposeViewController.
The setup is very simple - I have a tap event attached to a UI element, that when pressed, will make a call to my PhoneGap plugin, pass with it a number and a text message, then show the MFMessageComposeViewController with the parameters pre-populated.
My javascript looks like this:
$(document).bind('deviceready', function(){
$(".theButton").tap(function(){
cordova.exec(function(){}, function() {}, "PhoneGapSms", "SendSms", [db.getItem("profile_sms"), db.getItem("profile_emergency")]);
});
});
And my obj-c code looks like this:
- (void)SendSms:(CDVInvokedUrlCommand*)command
{
CDVInvokedUrlCommand* myCommand = command;
MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];
NSString* body = [command.arguments objectAtIndex:0];
NSString* toRecipientsString = [command.arguments objectAtIndex:1];
if(body != nil)
picker.body = body;
if(toRecipientsString != nil)
[picker setRecipients:[ toRecipientsString componentsSeparatedByString:#","]];
picker.messageComposeDelegate = self;
[self.viewController presentModalViewController:picker animated:YES];
[[UIApplication sharedApplication] setStatusBarHidden:YES];
[picker release];
}
So, all in all, very simple stuff.
My Problem is this:
When my iPhone is plugged into my Mac and the app is run from XCode, the Message Composer overlay appears great, with my values pre-populated. Image below demonstrating the SMS interface appears fine while plugged into XCode:
When my iPhone is unplugged from my Mac, and the app is run from the spring board, the Overlay slides up, the keyboard begins to slide up, then immediately slides down - making it impossible to type or send the message. This is what it looks like when not attached to the Mac/Xcode - the keyboard begins to slide up then immediately slides down (~ < 1 sec) leaving the following interface:
I can't for the life of me figure out what would cause the keyboard to hide when not running from XCode, but work perfectly well when it is.
Is there any way to 'force' the keyboard to display, or possibly put the whole modalviewcontroller as first responder in some form or fashion?
Any suggestions are appreciated!
Edit:
The keyboard WILL appear again if you click in the contact area
You must add MessageUI.framework to your Xcode project and include a
#import <MessageUI/MessageUI.h> in your header file.
try this code may be its helpful to you..
[self presentModalViewController:picker animated:YES];
//[self becomeFirstResponder];//try picker also instead of self
Also Refer this bellow tutorial and also check demo..
new-tutorial-developing-and-architecting-a-phonegap-application
SMSComposer
i hope this help you...
I encountered these symptoms with a Sencha Touch 2.2 and Cordova 2.6.0 setup (specifically, iOS 6+ devices).
The issue was with the web framework stealing focus away from the native SMS Composer modal, typically occurring after the first SMS Composer modal had been successfully displayed and closed.
A event.preventDefault() and event.stopPropagation() call once the event had been fired (or event.stopEvent() in Sencha land) resolved this.
Hope this helps,
-James
First: The most likely culprit, without seeing your code, is that your parent (presenting) view controller may have an action in its viewWillDisappear or viewDidDisappear that is affecting who has the "first" responder. These methods get called when presenting a view controller modally. It may be behaving differently on the simulator than the device due to timing - often really close timing conditions are different on the ARM device and the i386 processor.
Second: Does anywhere in your app register for the UIKeyboardWillShowNotification or the UIKeyboardDidShowNotification? If so, put breakpoints in the methods that are called as a result - it's possible some other controller in your view hierarchy is interfering with this one.
To answer your question...
Is there any way to 'force' the keyboard to display, or possibly put the whole modalviewcontroller as first responder in some form or fashion?
No to both. The only way to make the keyboard display is to call the becomeFirstResponder method of the input view. Since Apple doesn't expose the text view, you cannot send it messages. Setting the modalViewController as first responder would be setting the wrong object.
I found the same type of issue But Not Sure it will Solve your problem or not Just Have a Look on the Following Links :
1. http://community.phonegap.com/nitobi/topics/keyboard_is_not_triggerd_in_my_ios_build
2. https://github.com/phonegap/build/issues/31
If its not Solving your issue then you can Download the Sample code Here.
Link: https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/SMSComposer
I have never use youtube api in iPhone ...I tried to use GData but was missed in some steps here are link ans tutorial ....So never implemented it...
Due to which i used RSS feed and load it on tableView ...
and when user click on any row then the actual webPage opens in WebView and user have to click on the video to run it....
But now i don't want this ....
Can anyone provide me a better solution....
Thanks...
As I have given a brief answer here
I am explaining it in detail:
Put a button of same size and without any background image over your webview.
When the user presses this button open a new modal view with only a full screen size webview in it.
Pass the same html string to load the webview (that you were passing in your smaller webview).
Pass the touches programmatically to the webview like:
– (void) touchTheWebViewProgrammatically{
for(UIView* vw in [webView subviews]){
if([vw isKindOfClass:[UIButton Class]])
[vw sendActionsForControlEvents:UIControlEventAllEvents];
}
}
I'm writing an application where I want an image to be displayed on the first page, but only on a small portion of the front page. What I've been trying to do is set up a button on a subview that will switch the image on the first view. This has had me stumped for hours.
Can anyone help?
Assuming that your view controller has a member variable named 'myImageView' that's hooked up to the actual UIImageView, then you can change a UIImageView's image, as follows (caveat: I haven't compiled this code so it may have minor errors):
// create some images
UIImage *imgPig = [[UIImage imageNamed:#"pig.png"] retain];
UIImage *imgCow = [[UIImage imageNamed:#"cow.png"] retain];
...
// sometime later, change the imageview to show a pig
[[self myImageView] image] = imgPig;
...
// sometime later, change the pig to a cow
[[self myImageView] image] = imgCow;
// finally release images
[imgPig release];
[imgCow release];
Or is the problem that you have about how to access the actual UIImageView? Or is it that you don't know how to detect the button press so that you can actually do something in response to the button being pressed?
Yes, that's right. I have three .h and .m files: appdelegate, the viewcontroller, and then a subview. What I'm trying to do is let the user change the image to a different image on the first page by using a button located on the subview. On the first view there's a label and a UIImageView (This imageview is the one i want to change). On the second view there's a UIButton. When this button is pressed, it should change the UIImageView on the first page.
The problem I've been having is letting the first page know that the button has been pressed, and changing the picture accordingly. Hope thats enough info for you to help. thanks!!
[edit to guy below me: sorry, I switched comptuers and couldnt edit the original post]
I need to add an action button in my iPhone application. When that one is clicked the UIActionSheet with buttons need to be popped up.
Can any one tell me how to add an action button? - means is there any in built action button for iPhone app? or do we need to create a new button with image?
Thanks in advance!
Assuming this is in a view controller, you can do something like:
- (void)viewDidLoad
{
UIBarButtonItem *actionButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAction
target:self
action:#selector(methodThatShowsSheet)];
self.navigationItem.rightBarButtonItem = actionButton;
[actionButton release];
}
(Pardon the weird indentation to make it fit in a reasonable width (I normally just let Xcode wrap-indent everything automatically)).
See Nick Veys' answer for how to implement methodThatShowsSheet.
You need to hook up the action from the button you've decided will present this action sheet to code that shows it.
See the Apple Documentation on UIActionSheet for help on doing that.
I'm not sure I understnd your question but UIKit includes the UIButton class which will automatically send a message (specified by you) to an object (also specified by you). You can create a UIButton i nInterface builder or programatically.
Without more details on whay you actually want to do or why you're finding it difficult,m it's difficult to be more precise.
I'm trying to use the UIImagePickerController interface from OS 3.1, with the cameraOverlayView and takePicture, but I've clearly failed to understand how this works, and so I'm not getting the behaviour I want.
What I want to do is open the camera and take a picture automatically without having to having the user interact with the picker or edit the image. So I subclass UIImagePickerController (similar to the example in http://github.com/pmark/Helpful-iPhone-Utilities/tree/master/BTL%20Utilities/) and turn off all of the controls:
- (void)displayModalWithController:(UIViewController*)controller animated:(BOOL)animated {
self.sourceType = UIImagePickerControllerSourceTypeCamera;
self.showsCameraControls = NO;
self.navigationBarHidden = YES;
self.toolbarHidden = YES;
// Setting the overlay view up programmatically.
ipView = [[ImagePickerView alloc] init];
self.cameraOverlayView = ipView;
[controller presentModalViewController:self animated:NO];
}
In the overlayView, I've managed to force the takePicture method of UIImagePickerController to fire (I know this, because I can NSLog it, and I hear the sound of the camera taking a picture). The overlayView shows up just fine. However, the delegate method didFinishPickingMediaWithInfo: never gets called, and imagePickerControllerDidCancel doesn't get called either.
So, how do I either get the delegate methods to get called, or save the picture by overriding the takePicture method? (I have no idea how to capture the picture data here, and Google seems to have failed me). I can't help feeling that I've failed to understand how the guts of UIImagePickerController works, but the docs aren't overly helpful:
e.g.:
"You can provide a custom overlay view to display a custom picture-taking interface and you can initiate the taking of pictures from your code. Your custom overlay view can be displayed in addition to, or instead of, the default controls provided by the image picker interface."
or from showCameraControls:
"If you set this property to NO and provide your own custom controls, you can take multiple pictures before dismissing the image picker interface." - How do I dismiss the picker interface?
Note: the delegate is set properly in IB, so that's not the problem.
Thanks for any help you can provide!
I've found that you just have to wait "long enough" before calling takePicture, or it just silently fails. I don't have a good answer for how to determine the minimum value of "long enough" that will always work, but if you set a timer and wait five or ten seconds you should be okay. It would be nice if it returned some kind of an "I'm not ready to take a picture yet, sorry" error either directly from takePicture or through the delegate, but as far as I know it doesn't.
As an update to my own question: It turns out that I was trying to use takePicture too early. When I moved the action to a button on the overlay and sent takePicture from that button (once the picker was presented modally), the delegate methods fired as they should. I don't know if what I wanted is achievable - taking the image without having to press that button, automatically - but if it is, it will probably have to be done by sending takePicture sometime after I was trying to use it.
-(void)imageMethod:(id)sender{
imagePickerController = [[UIImagePickerController alloc]init];
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePopover=[[UIPopoverController alloc]initWithContentViewController:imagePickerController];
[imagePopover presentPopoverFromRect:importButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];
}