iphone-sdk-3.0

I am developing a simple animation where an UIImageView moves along a UIBezierPath , now I want to provide user interation to the moving UIImageView so that user can guide the UIImageView by touching the UIImageView and drag the UIImageview around the screen. So you want the user to be able to touch an image in the middle of a keyframe animation along a curved path, and drag it to a different location? What do you want to happen to the animation at that point? You have multiple challenges. First is detecting the touch on the object while a keyframe animation is "in flight". To do that, you

I have two view controllers A and B. From A, I navigate to view controller B as follows: // in View Controller A // navigateToB method -(void) navigateToB { BViewController *bViewController = [[BViewController alloc] initWithNibName: @"BView" bundle:nil]; bViewController.bProperty1 = SOME_STRING_CONSTANT; bViewController.title = @"A TITLE OF A VC's CHOOSING"; [self.navigationController pushViewController: bViewController animated:YES]; [bViewController release]; //<----- releasing 0x406c1e0 } In BViewController, the property bPropery1 is defined with copy as below (note, B also contains

How do I get arctan MATH function in iphone SDK? The function you are looking for is atan(double) Use the "2nd"-function under the "("-key, top left with the iphone in horizontal position. The tan key will change to tan-1, i.e. arctan. 来源： https://stackoverflow.com/questions/5339595/how-do-i-get-arctan-math-function-in-ios

I am using MFMailComposeViewController class to send out formatted HTML email from my iPhone app. I need to include an image in the email and I added am IMG tag to my emailbody - (IBAction)shareWithOther { MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"My Message Subject"]; NSString *emailBody = @"<h3>Some and follow by an image</h3><img src=\"SG10002_1.jpg\"/>and then more text."; [picker setMessageBody:emailBody isHTML:YES]; [self presentModalViewController:picker animated:YES]; [picker release]; } the

I want Minimum and Maximum Latitude and Longitude Using Current Location.Suppose i have give the area of 20km so using that latitude and Longitude i want Maximum latitude and Longitude and Minimum latitude and Longitude also want all latitude and Longitude in between this so how can i get it.How can i use of radius in it.Please help me.Thanks in Advance... you can manually calculate it... I don't know if any other way exist 1° latitude = 69.047 statute miles = 60 nautical miles = 111.12 kilometers so for 20 kilometers it would be around 0.18 latitude For longitude the conversion is the same as

I'm migrating a CoreData model between two versions of an application. I was storing binary data as blobs in the previous version and I want to take them out of the blobs for performance. My issue is that during the migration it seems that Core Data loads everything into memory which leads to Low Memory Warnings and then to my app being killed. Apple documentation suggests the following : http://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/CoreDataVersioning/Articles/vmCustomizingTheProcess.html#//apple_ref/doc/uid/TP40005510-SW9 However, it seems to rely on the fact that the