I want show a APNS device token with UILabel.
So I coded below:
//AppDelegate.m
- (void)application:(UIApplication*)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken
{
// TODO: Pass the token to our server
NSString *devToken = [[[[deviceToken description]
stringByReplacingOccurrencesOfString:#"<"withString:#""]
stringByReplacingOccurrencesOfString:#">" withString:#""]
stringByReplacingOccurrencesOfString: #" " withString: #""];
NSString *str = [NSString
stringWithFormat:#"Device Token=%#",devToken];
UIAlertView *alertCtr = [[UIAlertView alloc] initWithTitle:#"Token is " message:devToken delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles: nil];
[alertCtr show];
NSLog(#"device token - %#",str);
viewc = [ViewController alloc];
viewc.tokenLabel.text = str;
}
But nothing happend. What's wrong?
viewc = [ViewController alloc];
viewc.tokenLabel.text = str;
After alloc'ing your view controller, you should init it too. And present it, whether modally or in a navigation controller or something else, it's up to you.
Related
I am having difficulty implementing what I think should be a pretty simple capability. I have an button that compares the user's location to another set of lat/lon coordinates and displays an alert telling the user if they are "nearby" or "far away" from the location. This works well if the app remains in the foreground.
However, if the app gets sent to the background, the locationManager stops updating the user's location. If this happens, when the user brings the app back up and presses the "compare location button", the app doesn't seem to be able to get the user's new coordinates correctly.
Adding receive location updates to the background modes seems to work, but I know this will drain battery an may be rejected by Apple.
All I really want is to be able to have the button wait for an accurate set of lat/lon coordinates before trying to calculate the distance between the user and the other set lat/lon coordinates. Here is what I have so far:
The Location Button Does This:
-(void) locationButton {
NSString *userLatitude =[(PDCAppDelegate *)[UIApplication sharedApplication].delegate
getUserLatitude];
NSString *userLongitude =[(PDCAppDelegate *)[UIApplication sharedApplication].delegate
getUserLongitude];
NSString *placeLatitude = [[NSUserDefaults standardUserDefaults]
stringForKey:#"savedLatitude"];
NSString *placeLongitude = [[NSUserDefaults standardUserDefaults]
stringForKey:#"savedLongitude"];
NSString *distanceURL = [NSString stringWithFormat:#"http://www.website.com/page.php?
lat1=%#&lon1=%#&lat2=%#&lon2=%#",userLatitude, userLongitude, placeLatitude,
placeLongitude];
NSData *distanceURLResult = [NSData dataWithContentsOfURL:[NSURL
URLWithString:distanceURL]];
NSString *distanceInFeet = [[NSString alloc] initWithData:distanceURLResult
encoding:NSUTF8StringEncoding];
if ([distanceInFeet isEqualToString:#"1"]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"You're Near!"
message:#"" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
return;
}
if ([distanceInFeet isEqualToString:#"0"]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"You're Far!" message:#""
delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
return;
}
}
The first few lines of the locationButton method get the userLatitude and userLongitude from my App Delegate:
- (NSString *)getUserCoordinates {
NSString *userCoordinates = [NSString stringWithFormat:#"latitude: %f longitude: %f",
locationManager.location.coordinate.latitude,
locationManager.location.coordinate.longitude];
locationManager = [[CLLocationManager alloc] init];
locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move
locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m
[locationManager startUpdatingLocation];
return userCoordinates;
}
- (NSString *)getUserLatitude {
NSString *userLatitude = [NSString stringWithFormat:#"%f",
locationManager.location.coordinate.latitude];
return userLatitude;
}
- (NSString *)getUserLongitude {
NSString *userLongitude = [NSString stringWithFormat:#"%f",
locationManager.location.coordinate.longitude];
return userLongitude;
}
- (IBAction)doUpload:(id)sender {
NSMutableString *str = [[NSMutableString alloc] initWithString:#"Selected: "];
for(int i = 0; i < [appDelegate.notesArray count]; i++) {
// UPLOAD STRINGS HERE
if(selected[i]) {
[str appendFormat:#"%# ", [appDelegate.notesArray objectAtIndex:i]];
}
}
UploadView *uploadview = (UploadView *)self.view;
if(uploadview != nil) {
[m_owner uploadString:str];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Selected Values" message:str delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
[alert release];
// [self dismissModalViewControllerAnimated:YES];
}
}
In the above code, the str variable contains some values from the tableview cell. My tableview has multiple selection enabled, so str contains multiple values.
This code:
[m_owner uploadString:str];
is used for uploading to gdoc, but when str contains multiple values, it uploads all the values at the same time. I want to separate the values, and then upload them one by one.
How can I do this?
NSString *str = #"Hi ! I am iPhone Developer";
NSArray *myWords = [str componentsSeparatedByString:#"!"];
NSString *str1 = [NSString stringWithFormat:#"%#",[myWords objectAtIndex:0]];
NSString *str2 = [NSString stringWithFormat:#"%#",[myWords objectAtIndex:1]];
NSLog(#"%#",str1);
NSLog(#"%#",str2);
You will find in Log like this
Hi
I am iPhone Developer
If you just want to separate the components you can try using the componentsSeperatedByString: method. As a result you will be getting an array of objects which you can use to iterate for uploading.
[yourString componentsSeparatedByString:separatorString];
hope this helps.
I have a login form where the user can login only with the valid memberID and password. If the user enter correct enamel and password i get a result string contains the user information that the user created in the signup process, if it the password is wrong it shows the status 400 as the result string, the result string is the json array which contains one f the above values, one thing is the if the success login occur it gives the staus 200 along with the user information, my need is to retrieve the status message from the array and i need to validate it within the app, if the login success(status 200) it needs to be redirected to the main page; if it is(status 400) it shows a unsuccessful login message.
my code:
EDit
-(IBAction)_clicksbtnsignIN:(id) sender
{
[_txtmemberId resignFirstResponder];
[_txtpassword resignFirstResponder];
NSString *connectionstring = [[NSString alloc]initWithContentsOfURL:[NSURL URLWithString:#"http://www.google.com"]];
if ([connectionstring length]==0) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Error" message:#"you are not connected to the internet" delegate:self cancelButtonTitle:#"ok" otherButtonTitles:nil];
[alert show];
[alert release];
}
else
{
//NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *emailString = _txtmemberId.text; // storing the entered email in a string.
// Regular expression to checl the email format.
NSString *emailReg = #"[A-Z0-9a-z._%+-]+#[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:#"SELF MATCHES %#", emailReg];
//[pool drain];
if (_txtmemberId.text.length == 0 || _txtpassword.text.length == 0) {
UIAlertView *alertblnk = [[UIAlertView alloc]initWithTitle:#"ALERT" message:#"Fill the required text fields" delegate:self cancelButtonTitle:#"ok" otherButtonTitles:nil];
[alertblnk show];
[alertblnk release];
}
if (([emailTest evaluateWithObject:emailString] != YES) || [emailString isEqualToString:#""])
{
UIAlertView *loginalert = [[UIAlertView alloc] initWithTitle:#" Alert" message:#"Invalid Email ID" delegate:self
cancelButtonTitle:#"OK" otherButtonTitles:nil];
[loginalert show];
[loginalert release];
}
else {
[_spinner startAnimating];
NSString *uname = _txtmemberId.text;
NSString *pwd = _txtpassword.text;
NSString *urlVal = #"http://dev.eltouchapps.net/api/?app=1&type=m1&action=t2&var1=";
NSString *urlVal1 = [urlVal stringByAppendingString:uname];
NSString *urlVal2 = [urlVal1 stringByAppendingString:#"&var2="];
NSString *urlVal3 = [urlVal2 stringByAppendingString:pwd];
NSString * encodedString = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,(CFStringRef)urlVal3,NULL, (CFStringRef)#"\n" "",kCFStringEncodingUTF8 );
NSURL *url = [NSURL URLWithString:encodedString];
NSString *resultString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
UIAlertView *loginalert = [[UIAlertView alloc] initWithTitle:#" Message" message:resultString delegate:self
cancelButtonTitle:#"OK" otherButtonTitles:nil];
[loginalert show];
[loginalert release];
lblresult.text = resultString;
NSString *responseString = [resultString responseString];
NSLog(#"Got Profile: %#", responseString);
NSMutableDictionary *responseJSON = [responseString JSONValue];
NSString *firstName;
if ([[responseJSON valueForKey:#"Status"] isEqualToString:#"200"]) // if success
{
ParallelReadViewController *detailViewController = [[ParallelReadViewController alloc] initWithNibName:#"ParallelReadViewController" bundle:nil];
//detailViewController.firstString = firstString;
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
// do something
firstName = [responseJSON valueForKey:#"FirstName"];
}
}
}
}
Result string is why i get from the server. I know there is parsing of JSONB array we want , but i didn't know how to done this.
Thanks in advance.
based on assumption of your response , try below code
NSString *resultString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
NSMutableDictionary *responseJSON = (NSMutableDictionary *)[responseString JSONValue];
NSString *firstName;
if ([[responseJSON valueForKey:#"Status"] isEqualToString:#"200"]) // if success
{
// do something
firstName = [responseJSON valueForKey:#"FirstName"];
}
Hope it gives you an idea.
Check out this JSON framework: https://github.com/stig/json-framework/
I have the following code:
//View guest list
-(IBAction) guestList:(id) sender{
NSString *connected = [NSString stringWithContentsOfURL:[NSURL URLWithString:#"myURL"]];
//Waits a set peroid of time
wait(20000);
//Guest list is availible
if (connected != NULL){
CHARLIEAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
[appDelegate displayView:6];
}
//No network connection availible
else {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"No Network Connection!" message:#"Cannot establish internet connection." delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alert show];
[alert release];
}
}
And I get the following warnings:
//Waits a set peroid of time
wait(20000);
Gives me -
warning: passing argument 1 of 'wait' makes pointer from integer without a cast
NSString *connected = [NSString stringWithContentsOfURL:[NSURL URLWithString:#"http://photostiubhart.comoj.com/testconnection.php"]];
Gives me -
warning: 'stringWithContentsOfURL:' is deprecated (declared at /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSString.h:384)
I've done my testing and the code SEEMS to work fine, even though there are these warnings. Is there a way to remove these warnings at all? Or do they not matter?
I'm using xCode version 3.2.6
Thanks,
Jack
use
NSError* error;
NSString* connected = [NSString stringWithContentsOfURL:TheUrl encoding:NSASCIIStringEncoding error:&error];
You should use the method -
+(id)stringWithContentsOfURL:(NSURL *)url encoding:(NSStringEncoding)enc error:(NSError **)error
for example -
NSString* text = [NSString stringWithContentsOfURL:TheUrl encoding:NSASCIIStringEncoding error:&error];
Hope it will help you.
Try doing it this way:
-(IBAction)guestList:(id) sender{
NSURL *requestUrl = [NSURL URLWithString:#"http://photostiubhart.comoj.com/testconnection.php"];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:requestUrl];
NSData *loadTest = [NSData dataWithContentsOfURL:requestUrl];
if (loadTest == nil) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"No Network Connection!" message:#"Cannot establish internet connection." delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alert show];
[alert release];
} else {
CHARLIEAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
[appDelegate displayView:6];
}
}
I use the MFMessageComposeViewController for sending in App sms. in iPhone 4.0, if there is no SIM card, the app exits. it just gives a pop up message "no sim card installed".
The delegate callback MessageComposeResultSent. But application exits. Is there any way to prevent it from exiting? or how to check if there is any SIM card in the phone?
Code snippets below:
/* Open the system sms service, copying the sms text in system clipboard. */
- (void) sendSMSAsURLRequest {
NSString *phoneNumber = friend.phoneMobile;
UIPasteboard *pasteBoard = [UIPasteboard generalPasteboard];
NSString *textUTIType = (NSString *)kUTTypeUTF8PlainText; // add MobileCoreServices.framework for this type.
[pasteBoard setValue:[self buildSMSText] forPasteboardType:textUTIType];
NSString *urlString = [NSString stringWithFormat:#"sms:%#", phoneNumber];
NSURL *url = [[NSURL alloc] initWithString: urlString];
[[UIApplication sharedApplication] openURL: url];
[url release];
}
-(void) sendInAppSMS {
MFMessageComposeViewController *controller = [[[MFMessageComposeViewController alloc] init] autorelease];
controller.delegate = self;
if([MFMessageComposeViewController canSendText])
{
NSString *smsText = [self buildSMSText];
controller.body = smsText;
controller.recipients = [NSArray arrayWithObjects:friend.phoneMobile, nil];
controller.messageComposeDelegate = self;
[self presentModalViewController:controller animated:YES];
}
}
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
switch (result) {
case MessageComposeResultCancelled:
NSLog(#"Cancelled");
break;
case MessageComposeResultFailed:{
NSString *alertString = NSLocalizedString(#"Unknown Error. Failed to send message", #"");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:alertString delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alert show];
[alert release];
break;
}
case MessageComposeResultSent:
NSLog(#"SMS sent");
break;
default:
break;
}
[self dismissModalViewControllerAnimated:YES];
}
To Detect Sim Card is installed or not use following Code :
#import CoreTelephony;
CTTelephonyNetworkInfo *networkInfo = [CTTelephonyNetworkInfo new];
CTCarrier *carrier = [networkInfo subscriberCellularProvider];
if (!carrier.isoCountryCode) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"No SIM Card Installed" message:nil delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
}
else{
//Paste Your code here
}
The work around I am using now is, a flag in the app delegate,
- (void)applicationWillResignActive:(UIApplication *)aNotification {
if (shouldExitApp) {
exit(0);
}
}
In the SMS sending view controller,
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
((LuupAppDelegate *)[[UIApplication sharedApplication] delegate]).shouldExitApp = NO;
And set the flag again, when in the SMS sending view controller,
- (void) viewDidAppear:(BOOL)animated {
((LuupAppDelegate *)[[UIApplication sharedApplication] delegate]).shouldExitApp = YES;
[super viewDidAppear:animated];
}