Recent questions tagged iPhone

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iphone - HTTP Live Streaming with AVPlayer in iOS 4.0?

Is it possible to use HTTP Live Streaming with AVPlayer on iOS 4.0? This was clearly a documented feature of 4.0. ... iOS 4.0 or later". Thanks! See Question&Answers more detail:os...

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

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660 views

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iphone - UIView animation along a round path?

I need to make my little guy (in a UIIamgeView) jump forward and it has to look natural. I want to know ... the movement looks not natural :P See Question&Answers more detail:os...

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

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593 views

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iphone - ABPersonSetImageData Only Altering the Contact Thumbnail and Not the Full Pic

I am trying to add a border around each contact photo. I have working code to create this bordered image and ... at to help expedite the fix. See Question&Answers more detail:os...

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

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596 views

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iphone - Setting anchor point for UIView layer

I have a UIView subclass that I want to be able to move around within it's superview. When the user ... self.center = locationInSuperview; } See Question&Answers more detail:os...

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

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538 views

1 answer

iphone - Performance issues when using AVCaptureVideoDataOutput and AVCaptureAudioDataOutput

I'm having lag issues when I'm recording audio+video by using AVCaptureVideoDataOutput and AVCaptureAudioDataOutput. Sometimes ... ios 4.2.1) See Question&Answers more detail:os...

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

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768 views

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iphone - How to find UITextView number of lines

I have to find the number of lines of a UITextView. There is no property available, like anumberOfLines, ... .height/txtview.font.lineHeight; See Question&Answers more detail:os...

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

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505 views

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iphone - Unhiding a view is very slow in CTCallCenter callEventHandler

Reposting with more concise and focused question after original question went unanswered. Also adding more insight into ... 7 seconds? Thanks! See Question&Answers more detail:os...

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

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671 views

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iphone - How do I make an exact copy of a UIImage returned from a UIImagePickerController?

I have divergent needs for the image returned from the iPhone camera. My app scales the image down for upload ... modifying it in the process? See Question&Answers more detail:os...

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

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585 views

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iphone - Locationservice Indicator stays "on"

I have a created a small app which uses location services on the iPhone. All works well, except the fact, ... indicator stays on. 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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606 views

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iphone - Why is addSubview: not retaining the view?

I'm adding two subviews, which are stored by properties, to my view. When adding the subviews to my view the ... setup]; } return self; } See Question&Answers more detail:os...

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

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872 views

1 answer

iphone - Setting text-color on selected tab bar item

I've created a tab bar application. I have four tabs; on the selected tab, I need to set the color red for ... i do that? Thanks in advance. See Question&Answers more detail:os...

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

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603 views

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iphone - what exactly NSUrlConnection ASynchronous means?

i am getting confused what is the difference between Synchronous NSUrlConnection and ASynchronous NSUrlConnection?is there ... tutorial ... See Question&Answers more detail:os...

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

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625 views

1 answer

iphone - open google maps to bus directions

I realise that you can open the google maps app ready for directions by doing something like ... /MapLinks/MapLinks.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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582 views

1 answer

iphone - Trouble with CLLocation method distanceFromLocation: Inaccurate results

I am trying to use the distanceFromLocation: method to calculate the total distance that I am walking with ... greatly appreciated. Thank you! See Question&Answers more detail:os...

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

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670 views

1 answer

iphone - How to convert NSArray into NSString

How to convert NSArray into NSString in objective-c? See Question&Answers more detail:os...

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

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694 views

1 answer

iphone - how can I sort NSMutableDictionary with keys value?

I have a NSMutableDictionary with string keys and every key has its own array. I want to re-sort the dictionary with ... . How can I do this? See Question&Answers more detail:os...

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

0 votes

659 views

1 answer

iphone - Does -dataWithContentsOfURL: of NSData work in a background thread?

Does -dataWithContentsOfURL: of NSData work in a background thread? See Question&Answers more detail:os...

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

0 votes

586 views

1 answer

iphone - isKindOfClass and NSStringFromClass disagree about UIApplicationDelegate

I was playing with a simple OCUnit test for an iPhone app, and just wanted to assert that the app delegate was an ... ]' failed (0.002 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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613 views

1 answer

iphone - NSZombieEnabled does not work

When I set NSZombieEnabled = Yes nothing is written to the console. How can I fix this? Or can you ... other tools for an EXC_BAD_ACCESS? See Question&Answers more detail:os...

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

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569 views

1 answer

iphone - Add image to UIBarButtonItem button

I have added UITabButtonItem onto my view controller using following code. Could anyone please tell me if ... :videoController]; Thanks. See Question&Answers more detail:os...

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

0 votes

988 views

1 answer

iphone - Action sheet doesn't show Cancel button on iPad

On the iphone, this code shows the cancel button: - (IBAction)buttonPressed { UIActionSheet *actionSheet = [[ ... What's the problem? See Question&Answers more detail:os...

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

0 votes

551 views

1 answer

iphone - How can I disable any CLRegion objects registered with -startMonitoringForRegion?

I am using a NavigationController to display a list of geo-fences available to the user. At the top there is a global ... go next, I'm all ears. See Question&Answers more detail:os...

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

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816 views

1 answer

iphone - iOS 5 : -viewWillAppear is not called after dismissing the modal in iPad

I am presenting modal using the following code : AddName *add = [[AddName alloc] initWithNibName:@"AddName" bundle: ... that any bug in iOS5? See Question&Answers more detail:os...

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

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902 views

1 answer

iphone - Disable cell reuse for small fixed-size UITableView

I have a small, fixed-size table, and I want to load UITableView entirely into memory, and ... (UITableViewDataSource and UITableViewDelegate). 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 - App "failed to resume in time" and hangs

My app runs fine on my ipad but when I run it on my bosses ipad it hangs and stores the following device ... unknown flavor: 5, state_count: 1 See Question&Answers more detail:os...

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

0 votes

560 views

1 answer

iphone - How to animate the pie charts developed using core-plot library?

In the iPhone application Roambi, the pie chart shown can be animated to rotate with the user as if ... chart developed using Core plot? See Question&Answers more detail:os...

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

0 votes

581 views

1 answer

iphone - Perform autocorrelation with vDSP_conv from Apple Accelerate Framework

I need to perform the autocorrelation of an array (vector) but I am having trouble finding the correct way to do ... Matlab's xcorr(x) function See Question&Answers more detail:os...

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

0 votes

641 views

1 answer

iphone - NSStream SSL on used socket

I am writing an application that uses NSStream's SSL functions on the iphone. I know that SSL is working because ... in an error. Any thoughts? See Question&Answers more detail:os...

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

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