iPhone Snippets

Remove duplicates from NSArray

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Tue, 10 Apr 2012 20:26:00 -0700

NSArray *arrWithDuplicates = [[NSArray alloc] initWithObjects: @"Bob", @"Bob",@"Olga", @"Olga", @"Robin", nil];

NSArray *cleanedArray = [[NSSet setWithArray:arrWithDuplicates] allObjects];

NSLog(@"%@", [cleanedArray description] );

Add days to NSDate

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Tue, 10 Apr 2012 03:12:00 -0700

for (int i = 1; i < 30; i++) {

NSDate *newDate = [startDay.date dateByAddingTimeInterval:60*60*24*i];

MDay *day = [[MDay alloc] init];

day.date = newDate;

[list addObject:day];

}

Handle taps within a UIWebView

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Mon, 02 Jan 2012 08:57:00 -0700

//1. Add UIGestureRecognizerDelegate to your interface:

@interface DocumentViewControler : UIViewController <UIGestureRecognizerDelegate>

//2. Add to viewDidLoad

- (void)viewDidLoad {

[super viewDidLoad];

UITapGestureRecognizer* singleTap=[[UITapGestureRecognizer

alloc]initWithTarget:self action:@selector(handleSingleTap:)];

singleTap.numberOfTouchesRequired=1;

singleTap.delegate=self;

[self.webView addGestureRecognizer:singleTap];

[singleTap release];

}

//3. Add:

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer

shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer

*)otherGestureRecognizer {

return YES;

}

//4.

-(void) handleSingleTap:(UITapGestureRecognizer *)recognizer {

NSLog(@"handleSingleTap");

// Your code here

}

@end

Check if file exists

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Mon, 04 Jul 2011 18:46:00 -0700

BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:imagePath];

Show UIActionSheet

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Mon, 14 Mar 2011 01:45:00 -0700

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{

//SMS

if(buttonIndex == 0){

}

//EMAIL

if (buttonIndex == 1){

}

else

{

}

-(IBAction)emailAction{

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Send by" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"SMS", @"Email",nil];

actionSheet.actionSheetStyle = UIActionSheetStyleDefault;

[actionSheet showInView:self.view];

[actionSheet release];

}

UIAlertView without Buttons

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Sat, 12 Mar 2011 08:17:00 -0700

//Declare in class following vairiable

UIAlertView *alert;

-(void)showAlert{

alert = [[[UIAlertView alloc] initWithTitle:@"Please Wait..." message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil] autorelease];

[alert show];

UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

indicator.center = CGPointMake(alert.bounds.size.width / 2, alert.bounds.size.height - 50);

[indicator startAnimating];

[alert addSubview:indicator];

[indicator release];

}

-(void)dismissAlert{

[alert dismissWithClickedButtonIndex:0 animated:YES];

[alert release];

}

Send SMS

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Fri, 11 Mar 2011 00:09:00 -0700

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{

switch (result) {

case MessageComposeResultCancelled:

NSLog(@"Cancelled");

break;

case MessageComposeResultFailed:{

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Application" message:@"Unknown Error"

delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];

[alert show];

[alert release];

break;}

case MessageComposeResultSent:

break;

default:

break;

}

[self dismissModalViewControllerAnimated:YES];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{

//SMS

if(buttonIndex == 0){

MFMessageComposeViewController *controller = [[[MFMessageComposeViewController alloc] init] autorelease];

if([MFMessageComposeViewController canSendText])

{

controller.body = @"SMS Body";

controller.messageComposeDelegate = self;

controller.delegate = self;

[self presentModalViewController:controller animated:YES];

} else {

}

Surviving BlackBerry

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Wed, 09 Mar 2011 21:48:00 -0700

Hello,

Recently I was asked to port application from iPhone/Android to Blackberry.

Check out my separate blog about this "adventure"

Thanks,

Alexander

Get current app version number from AndroidManifest.xml

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Sun, 20 Feb 2011 05:26:00 -0700

//Usage from activity:

//String verison = GlobalSettings.getVersionName(this,MyActivity.class)

public static String getVersionName(Context context, Class cls) {

try {

ComponentName comp = new ComponentName(context, cls);

PackageInfo pinfo = context.getPackageManager().getPackageInfo(comp.getPackageName(), 0);

return "Version: " + pinfo.versionName;

} catch (android.content.pm.PackageManager.NameNotFoundException e) {

return null;

}

Get current app version number from bundle

alexander.nospam@nospam.iphonesdksnippets.com (alex) — Mon, 06 Dec 2010 00:02:00 -0700

[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"]