2014/10/15 下午 10:11:45

iphone Programming Glossary: myfloat

http://stackoverflow.com/questions/10049533/correcting-floating-point-numbers

matter how it is stored though. For instance if you want to display the result you can do something like this float myFloat 32 32.1 NSString result NSString stringWithFormat @ .2f myFloat result will contain 64.10 If you don't want a fixed number.. the result you can do something like this float myFloat 32 32.1 NSString result NSString stringWithFormat @ .2f myFloat result will contain 64.10 If you don't want a fixed number of decimal points you can also use the float to string conversion.. want a fixed number of decimal points you can also use the float to string conversion capability of NSNumber float myFloat 32 32.1 NSNumber myNumber NSNumber numberWithFloat myFloat NSString result myNumber stringValue result will contain 64.1..

Accessing & Using the MobileWiFi.framework

http://stackoverflow.com/questions/2018110/accessing-using-the-mobilewifi-framework

applicationWillTerminate works as long as I don't switch off the iPhone

http://stackoverflow.com/questions/704789/applicationwillterminate-works-as-long-as-i-dont-switch-off-the-iphone

a button I do the following IBAction riprendi id sender NSUserDefaults prefs NSUserDefaults standardUserDefaults float myFloat prefs floatForKey @ floatKey some actions here Everything is working on the simulator. However using it on a real iPhone..