Recent questions tagged objective

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objective c - Draw a line with a CALayer

I'm trying to draw a line between two points using a CALayer. Here is my code: //positions a CALayer to be ... the screen. What am I doing wrong See Question&Answers more detail:os...

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

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507 views

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objective c - "Cannot find interface declaration for NSObject"?

So I've done some research into this issue, but I haven't found anything similar just yet... So I'm coding a ... . http://i.imgur.com/EuQh4.png See Question&Answers more detail:os...

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

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581 views

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objective c - Display file chooser dialog

How do I show a file chooser dialog on Mac OS X? The language is 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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527 views

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objective c - How can I examine assembly in Xcode 4?

I'm tuning some code that runs in a tight loop in my iPhone app and I'm curious to see the generated ... how the entire project is compiled. See Question&Answers more detail:os...

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

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561 views

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objective c - Removing Shine/Gloss effect on the iPhone through UIPrerenderedIcon not working on device

I have tried to use the UIPrerenderedIcon/"Icon already includes gloss and bevel" on the Info.plist of my ... thoughts? Best Regards, Muffie See Question&Answers more detail:os...

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

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464 views

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objective c - If a subclass refers to a superclass ivar, synthesizing an unrelated property fails

Edit: I just noticed this other Stack Overflow question asking much the same thing: Why does a subclass @property ... what's happening 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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580 views

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objective c - stringByTrimmingCharactersInSet: is not removing characters in the middle of the string

I want to remove "#" from my string. I have tried NSString *abc = [@"A#BCD#D" stringByTrimmingCharactersInSet:[ ... " What could be wrong? See Question&Answers more detail:os...

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

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494 views

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objective c - How to get the current location in watchOS 2?

I need to fetch the user current location for the WatchKit App in watchOS 2. How do I do this? See Question&Answers more detail:os...

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

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451 views

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objective c - iPad Video with Transparency

is it possible to have a QuickTime video with alpha layer (transparency) play on top of a static dynamic background ... ) on the iPad? 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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927 views

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objective c - Set text vertical center in NSTextField

In a certain height NSTextField , the layout would be like this if text's size is small the text is flowing ... make the text center like this: See Question&Answers more detail:os...

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

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658 views

1 answer

objective c - Open iOS app from URL AND Pass Parameters

A link should open the app. I've got that to work. I just want to know how to pass a parameter. Let' ... opened by the link? Help Appreciated. See Question&Answers more detail:os...

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

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442 views

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objective c - Assertion Failure in UICollectionViewData indexPathForItemAtGlobalIndex

I am using performBatchUpdates() to update my collection view, where I am doing a complete refresh, i.e. delete ... might be going wrong 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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630 views

1 answer

objective c - What is GCC_NO_COMMON_BLOCKS used for?

I found that my project sets GCC_NO_COMMON_BLOCKS = NO under Apple LLVM Compiler 3.1 - Code Generation settings, as ... used for? Thanks a lot 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

objective c - Core Data: Abstract Entity in Fetch Request

Suppose I have a Core Data model with an abstract entity called "Animal." Then, I have many other entities that ... to go about this? 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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563 views

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objective c - Does @property copy in combination with readonly make sense?

If I understand this correctly, copy enforces the setter to create a copy of the object passed in. However, if ... or am I missing something? See Question&Answers more detail:os...

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

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592 views

1 answer

objective c - Stop iOS 7 MKMapView from leaking memory

I've noticed that my app leaks memory, but if I take the MKMapView out the memory problem goes away. To ... prevent it from leaking so much? See Question&Answers more detail:os...

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

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517 views

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objective c - Why does NSDateFormatter return nil date for these 4 time zones?

Try running this in iOS6 (haven't tested pre iOS6): NSDateFormatter *julianDayDateFormatter = nil; ... return actual NSDates. See Question&Answers more detail:os...

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

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478 views

1 answer

objective c - Using CGContext to display a sprite sheet iPhone

So I have a spritesheet in png format, and have already worked out the coordinates for what I want to ... would be appreciated. Thanks, Mike 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

objective c - Get all frames of Video IOS 6

I would like to get all frames of a Video in iOS6 into NSArray. I use this code: -(void) getAllImagesFromVideo { ... ! Help me! :) 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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408 views

1 answer

objective c - Transfer files between 2 iPhones over wifi?

I've spent a few days looking for different solutions, but the whole area is quite complicated, and I'm ... another iPhone on the network? See Question&Answers more detail:os...

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

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436 views

1 answer

objective c - How do I get the current hour using Cocoa?

How do I get the current hour in Cocoa using Objective-C? See Question&Answers more detail:os...

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

0 votes

480 views

1 answer

objective c - How to insert multiple row of data to sqlite database by iphone programming

I am new to iphone development.I want to insert multiple values into my sqlite3 database and display the content ... Please help me out.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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333 views

1 answer

objective c - What do I have to learn to get done with a 3D racing game for the iPhone? What Tools do I need?

I know Java pretty well. I know now most of the Basics in Objective-C. I know nothing about Photoshop. I know ... out? How long did you learn? See Question&Answers more detail:os...

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

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554 views

1 answer

objective c - Ball with the new Sprite kit

I'm trying to make a simple forever bouncing ball with new sprite kit on ios 7. I set gravity: scene. ... middle of the screen). 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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621 views

1 answer

objective c - Find Mac OSX serial number

How to find the Mac OSX serial number. Sometimes it is required to get serial number of a mac, and you validate ... quite helpful for all of us. See Question&Answers more detail:os...

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

0 votes

663 views

1 answer

objective c - How can i add a button to google maps marker info window on ios?

I have added Google maps sdk for ios to my Iphone app, and i have some custom markers if clicked ... flickr.com/photos/74719051@N05/6728157477/ See Question&Answers more detail:os...

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

0 votes

578 views

1 answer

objective c - Saving an NSView to a png file?

I am making a simple program that creates game cards for a game I play. I have sent it out to some ... format? Any help is greatly appreciated. See Question&Answers more detail:os...

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

0 votes

769 views

1 answer

objective c - Form Data Request using NSURLConnection in iOS

I want to make http form post using NSURLConnection in iOS. I have two form fields and one file upload ... wrong with the NSURLConnection part? See Question&Answers more detail:os...

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

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