iphone-sdk-3.0
Calculate steps using accelerometer
I am working on an application to calculate the steps to find the heartbeat rate a开发者_高级运维nd the distance using the accelerometer. Is there any algorithm on how to do the calculation?I tried to[详细]
2023-03-17 00:33 分类:问答How to draw a triangle with QUARTZ 2D?
I\'m developing an iPhone app with 3.1.3 SDK. I\'m trying to draw a triangle with transparent fill an 1px black stroke with this code:[详细]
2023-03-16 20:59 分类:问答struct or class
I\'m developing an iPhone 3.1.3 application. I have a class, called Object2D, with fields and methods; which represent a shape. Object2D has a field that represents its size, and another field that r[详细]
2023-03-16 20:53 分类:问答What is The maximum Memory usage Limit For an Iphone Application? [duplicate]
This question already has answers here: Closed 11 years ago. Possible Duplicate: iPhone Development - Memory limitation for iphone application[详细]
2023-03-16 17:04 分类:问答Don't let use -(id)init; method
I\'m developing an app for iPhone 3.1.3. I have the following class: @interface Pattern : NSObject { NSMutableArray* shapes;[详细]
2023-03-16 04:38 分类:问答Problem accessing LinkedIn from an iOS app
I receive the following messag开发者_开发百科e after login in to linkedin in my Iphone App.It cant access the contacts or any other information from linked in.Just give the following message.[详细]
2023-03-16 02:10 分类:问答Using Gmail Api with Iphone
I am creating an app that needs to connect to 开发者_开发知识库the Gmail server and fetch the inbox emails and sort them out and store them in core data modal. I have no idea on how I could integrate[详细]
2023-03-16 01:43 分类:问答How to passing a NSMutableArray to another ViewController class
I have created NSMutale Array in \"HeroListViewController\". I want use it in another viewController which is MapTutorialViewController. I tried like this.[详细]
2023-03-16 00:39 分类:问答Why does the view nib doesn't open after cell is selected?
I created the nib file and I did all the connections correctly. When I run the application and select a cell, the new nib doesn\'t open at all. Please help![详细]
2023-03-15 13:43 分类:问答tableView:moveRowAtIndexPath:toIndexPath: on iOS 3.x gets called over and over again when moving rows
As the topic says, this method gets called over and over again when I move rows and crashes. It works fine on iOS 4.x[详细]
2023-03-15 08:18 分类:问答