Recent questions tagged iPhone

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299 views

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iphone - Adding back button to navigation bar

I've added a navigation bar to a UIViewController. It is displayed from another UIViewController only. I'd ... not navigation controller based. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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270 views

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iphone - how to identify ios device uniquely

In my current application,i have to let user to login from different iOS devices to their account. Currently i'm ... same user account in ios ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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iphone - Hide UIToolbar UIBarButtonItems

I have a UIToolbar that I set up using IB with three buttons, left, middle and right. In some situations I ... has a use. Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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422 views

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iphone - insert NSDictionary into CoreData

I have an NSDictionary and a CoreData Database. I want to insert the NSDictionary into the database. How can ... attribute of the dictionary ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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337 views

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iphone - How do copy for UILabel?

I have IBOutlet UILabel *label; and I want to do this UILabel *label = [titleLabel copy]; label. ... 0x11a5ccb 0x1bb2a7 0x1bca9b 0x21c2 0x2135) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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476 views

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iphone - How to convert CGFontRef to UIFont?

I want to use a custom font for a UILabel. The custom font is loaded by from a file: NSString *fontPath = .. ... be used in [UILabel setFont:]? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

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iphone - adding images to UItableView

Is it possible to add images to a table view? To the left side? And if so, what size should it be? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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569 views

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iphone - How to Dismiss 2 Modal View Controllers in Succession?

I have 2 view controllers presented modally. A presents B which presents C. When I dismiss C I would like to dismiss ... can I dismiss B from C? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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iphone - Are there complete examples that make use of all the NSURLConnection delegate methods?

I have a hard time to find any examples for NSURLConnection delegate method implemenetations. The SeismicXML ... material regarding this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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396 views

1 answer

iphone - Difference between UITableViewDelegate and UITableViewDatasource

Anyone tell me the difference between UITableViewDelegate and UITableViewDatasource? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

1 answer

iphone - Overriding highlighted selection in UIPickerView

I have a custom UIPickerView where I use: -(UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row ... a way to change it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

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iphone - Accelerometer Low Pass Filtering

Still on the BigNerdRanch iOS Development book. In the Accelerometer chapter, they first implement accelerometer tracking but ... sense to me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

1 answer

iphone - Fuzzy Date algorithm in Objective-C

I would like to write a fuzzy date method for calculating dates in Objective-C for iPhone. There is a popular explanation ... + " years ago"; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

1 answer

iphone - blank white screen after FB login via web app?

I have tried following the FB mobile web "getting started guide" at: https://developers.facebook.com/docs/guides/mobile ... from FB :-( thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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308 views

1 answer

iphone - UITableView with infite scrolling and lazy loading

I got an UITableView which is filled with an unknown amount of rows. Each row contains (for example 3) images and ... smooth as a baby's skin. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

471 views

1 answer

iphone - How to override -drawrect in UIButton subclass?

HI. I need to write some text over a custom button. So I subclassed UIButton. In -drawrect, I write ... called regardless. Any ideas? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

331 views

1 answer

iphone - iOS 5: Data encryption AES-256 EncryptWithKey: not found

Question is about iOS5 application. I have a view controller where I have some UITextFields. I would like to ... data using AES-256 Chandra See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

369 views

1 answer

iphone - Program received signal: “0”. Data Formatters temporarily unavailable

I'm working on an iPad app that downloads a CSV file from the web and parses the file into a NSMutableArray. (I ... me here... :( Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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353 views

1 answer

iphone - How to resize Title in a navigation bar dynamically

I have some views that show up in a navigation controller. Two of these views have a longer title for the ... title text automatically to fit? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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354 views

1 answer

iphone - How to recognize swipe in all 4 directions?

I need to recognize swipes in all directions (Up/Down/Left/Right). Not simultaneously, but I need to ... Swipe object all different directions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

514 views

1 answer

iphone - Force portrait orientation while pushing from landscape View Controller

App Support: iOS6+ My app works in both portrait and landscape. But 1 controller should only works in a ... to Portrait orientation in iOS 6 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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561 views

1 answer

iphone - how to hide navigationbar when i push from navigation controller?

how to hide top bar in UIViewcontroller when i push from navigation controller using pushViewController ? any help please? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

1 answer

iphone - Error with NSJSONSerialization - Invalid type in JSON write (Menu)

I have an App using core data with 3 entities with very similar attributes. The relationship is such as: ... etc) JSON serialization compatible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

311 views

1 answer

iphone - AESCrypt decryption between iOS and PHP

I am having a heck of a time figuring out how to decrypt a string encrypted with the NSData+AESCrypt.m (Explained ... see what I'm doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

1 answer

iphone - UIScrollView with "Circular" scrolling

I am trying to make "Circular" scrolling in my UIScrollView, but unsuccessful. What I want to do: if uiscrollview ... id") Have you any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

316 views

1 answer

iphone - AFNetworking Uploading a file

Does any one have a full implementation of uploading a file using AFNetworking. I have found some code on the ... would be amazing. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

369 views

1 answer

iphone - UIWebView -- load external website, programmatically set initial zoom scale, and allow user to zoom afterwards

Is it possible to do all of the above? SO has given me a great way to set the initial zoom scale here. ... the scrollView, things blur a little. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

285 views

1 answer

iphone - Xcode unit testing

I have never used Unit Testing and I understand the uses of it but I don't really know when and how to ... Testing, maybe with some examples. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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