I want to launch MSN through my iphone App.
I am using url shema-
BOOL msn = [[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"msnim://"]];
if (msn) {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"msnim://"]];
}
else {
UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle: #"MSN not Installed" message: nil delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[errorAlert show];
[errorAlert release];
but its not working.
Am i using wrong custom url for MSN????
If yes,then what is the url scheme for MSN.
Related
I am new to IOS now I am developing location app i am not getting correct latitude,longitude values while running my app in iPhone.. it gives me too far lat,long values to the current location why it shows me these values can anyone tell me..
Try it....
Set Delegate CLLocationManagerDelegate
#import <CoreLocation/CoreLocation.h>
CLLocationManager *locationManager;
CLLocation *startLocation;
- (void)viewDidLoad {
[super viewDidLoad];
NSString *currentLatitude;
NSString *currentLongitude;
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate = self;
[locationManager startUpdatingLocation];
startLocation = nil;
}
-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
currentLatitude = [[NSString alloc]
initWithFormat:#"%g",
newLocation.coordinate.latitude];
currentLongitude = [[NSString alloc]
initWithFormat:#"%g",
newLocation.coordinate.longitude];
NSLog(#"%#",currentLatitude);
NSLog(#"%#",currentLongitude);
}
-(void)locationManager:(CLLocationManager *)manager
didFailWithError:(NSError *)error
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"ERROR" message:[NSString stringWithFormat:#"%#",error] delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
[alert release];
}
I have a MainController and detailedcontroller. When I popover the Book selection and select a Book, the detailcontroller display an UIWebView with the book articles :
#interface IpadBooksViewController : UITableViewController {
SearchResult *searchResult;
IpadArticleViewController *detailController;
IpadMainViewController *mainController;
UIPopoverController *popover;
}
Into the UIWebView, I display an Email icon and catch the scheme :
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
NSURL *url = [request URL];
NSString *scheme = [url scheme];
NSString *host = [url host];
if ([[url description] hasSuffix:#"next"]) {
NSLog(#"next Show");
}
BOOL isShareLinks = [host isEqualToString:#"displayShareLinks"];
BOOL isFavoriteLinks = [host isEqualToString:#"displayFavoriteLinks"];
if ([#"myappurl" isEqualToString:scheme] && (isShareLinks || isFavoriteLinks)) {
self.selectedArticleNumber = [url.path lastPathComponent];
if (isShareLinks) {
[self sendMailArticleNumber:selectedArticleNumber];
} else if (isFavoriteLinks) {
NSLog(#"ipad favorite clicked");
[self toggleFavorite:selectedArticleNumber];
Broker *broker = [[Broker alloc] init];
[broker loadProjects:self];
[broker release];
}
}
return [super webView:webView shouldStartLoadWithRequest:request navigationType:navigationType];
}
Action is supposed to display the MFMailController under my UIWebView, but nothing is displayed without error message :
- (void) sendMailArticleNumber:(NSString *)articleNumber {
MFMailComposeViewController* composer = [[MFMailComposeViewController alloc] init];
composer.mailComposeDelegate = self;
[composer setSubject:#"Article"];
NSString *messageBody = [Article fetchBody:articleNumber bookId:bookId];
[composer setMessageBody:messageBody isHTML:YES];
[self presentModalViewController:composer animated:YES];
[composer release];
}
Any help will be welcomed. I did try creating a popover, addView atIndex without success ... Let me know if you need more code.
David
I did solve the issue by loading the controller into the delegate as following :
[((PublilexAppDelegate*)[[UIApplication sharedApplication] delegate]) sendMailArticleNumber:selectedArticleNumber bookId:self.bookId];
And then into the Delegate :
- (void) sendMailArticleNumber:(NSString *)articleNumber bookId:(NSString*)bookId {
MFMailComposeViewController* composer = [[MFMailComposeViewController alloc] init];
composer.mailComposeDelegate = self;
[composer setSubject:#"Article"];
NSString *messageBody = [Article fetchBody:articleNumber bookId:bookId];
[composer setMessageBody:messageBody isHTML:YES];
[self->navigationController presentModalViewController:composer animated:YES];
[composer release];
}
And to dismiss and comeback to the previous view :
-(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
[self->navigationController dismissModalViewControllerAnimated:YES];
// [self dismissViewControllerAnimated:YES completion:nil];
// [((PublilexAppDelegate*)[[UIApplication sharedApplication] delegate]) navigateToIpadMain];
}
I'm trying to build an app to play local music, but unfortunately, i'm unable to do audio playback in background in iOS5 with AVQueuePlayer.
In my ViewDidLoad, i got this code :
// Player setup
mAudioPlayer = [[AVQueuePlayer alloc] init];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(playerItemDidReachEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:nil];
[mAudioPlayer addPeriodicTimeObserverForInterval:CMTimeMakeWithSeconds(1.0, 1) queue:NULL usingBlock:^(CMTime time) {
[self updatePositionOnDisplay];
}];
// Audio session setup
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: &setCategoryErr];
[[AVAudioSession sharedInstance] setActive: YES error: &activationErr];
Here is my "playerItemDidReachEnd" method:
- (void)playerItemDidReachEnd:(NSNotification*)notification
{
NSLog(#"playerItemDidReachEnd");
UIBackgroundTaskIdentifier newTaskID = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
[[UIApplication sharedApplication] endBackgroundTask:newTaskID];
}];
NSLog(#"playerItemDidReachEnd 2");
NSLog(#"searching next song");
mCurrentSong = [self getNextSongWithIsSwitched:NO];
if(mCurrentSong != nil){
NSLog(#"Start : %# - %#", mCurrentSong.artist, mCurrentSong.title);
mTapeTitle.text = [NSString stringWithFormat:#"%# - %#", mCurrentSong.artist, mCurrentSong.title];
AVPlayerItem* i = [[AVPlayerItem alloc] initWithURL:[NSURL URLWithString:mCurrentSong.path]];
if(i != nil){
[mAudioPlayer insertItem:i afterItem:nil];
}else
NSLog(#"BING!! no AVPlayerItem created for song's path: %#", mCurrentSong.path);
[i release];
}else{
NSLog(#"no song found");
[mAudioPlayer pause];
isPlaying = NO;
[mPlayButton setSelected:NO];
}
[[UIApplication sharedApplication] endBackgroundTask:newTaskID];
newTaskID = UIBackgroundTaskInvalid;
}
When I start the playback, it works, and keep playing when i switch off the screen. BUT when the song is over, here are the logs
2012-03-01 10:00:27.342 DEMO[3096:707] playerItemDidReachEnd
2012-03-01 10:00:27.360 DEMO[3096:707] playerItemDidReachEnd 2
2012-03-01 10:00:27.363 DEMO[3096:707] searching next song
2012-03-01 10:00:27.381 DEMO[3096:707] Start : Moby - Ah-Ah
But no song start effectively...
Can anyone tell me what's wrong with my code ??
Thanks a lot.
try to comment next lines
[[UIApplication sharedApplication] endBackgroundTask:newTaskID];
newTaskID = UIBackgroundTaskInvalid;
if it works then you need to add an observer to a mAudioPlayer for "currentItem.status" when status AVPlayerStatusReadyToPlay then end background task
I have the following code that displays the alerts depending on the result: How can I improve the following code:
-(IBAction)saveSettings:(id)sender
{
UIAlertView *alert = nil;
username = self.usernameTextField.text;
token = self.passwordTextField.text;
// validate the username and token
if(![self isValid])
{
// show alert that it is not valid
alert = [[UIAlertView alloc] initWithTitle:#"Error" message:#"Invalid User Name or Password" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok", nil];
[alert show];
return;
}
BOOL isSynched = [self syncSettings];
if(!isSynched)
{
alert = [[UIAlertView alloc] initWithTitle:#"Error" message:#"Error Syncing Settings" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok", nil];
[alert show];
}
else
{
alert = [[UIAlertView alloc] initWithTitle:#"" message:#"Settings has been Synced Syncing" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok", nil];
[alert show];
}
}
I think I am instantiating the alert too many times and looks kind of repetitive!
username = self.usernameTextField.text;
token = self.passwordTextField.text;
UIAlertView* alert = [[UIAlertView alloc] initWithTitle:#"Error"
message:#""
delegate:self
cancelButtonTitle:nil
otherButtonTitles:#"Ok", nil];
[alert autorelease];
// validate the username and token
if(![self isValid])
{
// show alert that it is not valid
alert.message = #"Invalid User Name or Password";
[alert show];
return;
}
BOOL isSynched = [self syncSettings];
if(!isSynched)
{
alert.message = #"Error Syncing Settings";
}
else
{
alert.title = #"";
alert.message = #"Settings has been Synced Syncing";
}
[alert show];
Try leaving all those instances of [alert show]; out & then at the end put...
if (!alert) return;
[alert show];
phix23's answer also provides good improvement because you're setting a bunch of the properties of the alert explicitly & only once. If you use that you can also use mine by changing the condition to...
if (alert.message != #"") return;
Cheers, Pedro :)
I just wrote a iOS app to test the UIAlertView. When I ran it, the UIAlertView just appear with the screen went dark first without the UIAlertView, and "a long time" later ,the UIAlertView appeared. This happens on both Simulator and iPhone (IOS 4.2). I don't know why, Please help me, thanks.
Description:(You can also download the Project HERE)
Its a very simple View based app With 3 Classes: AppDelgate ViewControler and a TestOperation which implement NSOperation;
AppDelegate was just the one produced by XCode;
TestOperation.h:
#import <Foundation/Foundation.h>
#protocol TestOperationDelegate
- (void)didFinishTestOperaion;
#end
#interface TestOperation : NSOperation {
id <TestOperationDelegate> delegate;
}
#property (nonatomic, assign) id <TestOperationDelegate> delegate;
#end
TestOperation.m
#import "TestOperation.h"
#implementation TestOperation
#synthesize delegate;
- (void)main {
[delegate didFinishTestOperaion];
}
#end
ViewContoller.m
- (void)viewDidLoad {
[super viewDidLoad];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
TestOperation *testOperation = [[TestOperation alloc] init];
testOperation.delegate = self;
[queue addOperation:testOperation];
[testOperation release];
}
- (void)didFinishTestOperaion {
NSLog(#"start uialertview");
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:#"Oops!" message:#"Here's the UIAlertView"
delegate:self cancelButtonTitle:#"Confirm" otherButtonTitles:nil];
[alert show];
[alert release];
}
//Solved!! Use performSelectorOnMainThread to make
the UI run on Main Thread
Solved!! Use performSelectorOnMainThread to make the UI run on Main Thread
[alert performSelectorOnMainThread:#selector(show) withObject:nil waitUntilDone:NO];
What are you attempting to test in the UIAlertView? If you simply called the UIAlertView from viewDidAppear: in your ViewController, is the UIAlertView displayed rapidly as expected?
I expect that the issues you are having are related to how you are calling the UIAlertView, and that the UIAlertView is being displayed before the UIView controlled by your ViewController has appeared.