Recent questions tagged iPhone

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Using iOS 5 storyboards, on a button I am performing a segue, what I want is to do validation on my textfield and ... . Whats the way to do it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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683 views

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iphone - Combine longpress gesture and drag gesture together

I'm moving my views by UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action: ... . Any idea? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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320 views

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iphone - How to make a UIView always appear at the front?

Currently I have a UIView which contains some controls. I then have some images I programatically add to ... myControlView.alwaysOnTop = true; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

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iphone - NSPredicate that is the equivalent of SQL's LIKE

I'm looking for a way to use NSPredicate to set a LIKE condition to fetch objects. In addition to that, an ... ' OR lastname LIKE '%James%'; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

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iphone - What does contentOffset do in a UIScrollView?

What is the use of the contentOffset property in UIScrollView? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

1 answer

iphone - How to get UITableViewCell indexPath from the Cell?

How do I, from a cell, get its indexPath in a UITableView? I've searched around stack overflow and ... the indexPath of the UITableViewCell. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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iphone - Compile Error with: switch, "expected expression before"

Cut to the chase I have recreated my problem as it is fairly self explanatory. this complies without error: ... Am I missing something here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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578 views

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iphone - Storyboard warning: prototype table cells must have reuse identifiers

I am getting this warning from storyboard - prototype table cells must have reuse identifiers. I have renamed ... the warning. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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317 views

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iphone - UIImage detecting touch and dragging

Fairly common question this, to which I have a few answers and I'm nearly there. I have a button which when ... , it flashes... any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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228 views

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iphone - How to implement UIScrollView with 1000+ subviews?

I am struggling with writing portion of an app which should behave like the native iphone photo app. Looked at ... ...can someone guide ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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278 views

1 answer

iphone - iOS UIWebView Javascript - insert data -receive callbacks?

I have a webpage. I have a javascript file that does a whole lot of stuff. In the app I have an NSString with ... it can be stored in the app? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

1 answer

iphone - Generate vCard from AddressBook.framework

I'm utilising the AddressBook.framework in my iPhone app, and I'd like to replicate something along the lines ... available that can help me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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421 views

1 answer

iphone - How to get the custom overlay for UIImagePicker camera to be full screen in iOS 7?

I am interested in using a custom overlay for the UIImagePickerController for camera controls that take the entire screen ... :nil]; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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469 views

1 answer

iphone - Thumbnail image of video

I am selecting video clip from library. And i want to create thumbnail image of it. I have applied this code. ... = NO; } return currentImg; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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308 views

1 answer

iphone - UITableViewCell bad performance with AutoLayout

I'm somewhat stuck with this one any help is very appreciated. I've already spent lots of time debugging this ... is not causing any slowness. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

1 answer

iphone - Implementing a Countdown Timer in Objective-c?

I am new to iOS programming. I am working on words matching game. In this game I need to implement time ... it in both minutes and seconds. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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387 views

1 answer

iphone - Adding a header view to a UIWebView similar to Safari and Articles

I'd like to add a header view to an UIWebView similar to the address/search bar in MobileSafari and ... fix orientation" behave accordingly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

1 answer

iphone - Mobile Safari SVG Problem

I'm trying to get an SVG image to show up on my iPhone (or iPad) default browser, but I can't seem to get even ... /svg> </div> </body> </html> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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546 views

1 answer

iphone - Get Cell position in UITableview

I am trying to get position of cell in tableview. from this code i am getting cell position int numberOfSections = [ ... frame (0,0,200,500). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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443 views

1 answer

iphone - NSLocale and country name

I used this code for getting which country iPhone belong to: NSLocale *locale = [NSLocale currentLocale]; NSString ... name in that language... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

545 views

1 answer

iphone - Objective-C: How to call performSelector with a BOOL typed parameter?

Is there any way to send a BOOL in selector ? [self performSelector:@selector(doSomething:) withObject:YES ... write a sample please ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

452 views

1 answer

iphone - How to check if a string only contains alphanumeric characters in objective C?

I'm working on a small iphone project and i would need to check if the userName entered only contains alphanumerical ... i go about checking it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

523 views

1 answer

iphone - How to resize a UISwitch?

I have made a custom UISwitch (from this post). But the problem is, my custom texts are a bit ... mySwitch setRightLabelText: @"longValue2"]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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366 views

1 answer

iphone - Printing NSData using NSLog

How can I print the contents of an NSData object using NSLog: -(void) post:(NSString*) msg to:(NSString*) ... the contents of *returnData... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

1 answer

iphone - Could not load the image referenced from a nib in the bundle running on device

SplitView[1290:307] Could not load the "canary04.png" image referenced from a nib in the bundle with identifier ... . Anyone have any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

354 views

1 answer

iphone - Google Analytics iOS Campaign Tracking and URL Builder

We want to track installs with Google Analytics for our iOS app. What we already done: we have last iOS SDK 3 ... to make the GA tracking work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

281 views

1 answer

iphone - Objective C release, autorelease, and data types

I'm new to memory managed code but I get the idea pretty well. On taking my app through the leaks ... release anything. Can anyone explain? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

497 views

1 answer

iphone - how to find current zoom level of MKMapView?

I want to know the current zoom level of MKMapView in iphone programming, how can I do that? Actually I ... of current MKMapView visible area? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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