Recent questions tagged objective

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objective c - How useful is the -[NSObject isMemberOfClass:] method?

Here's a small test program I wrote: #import <Foundation/Foundation.h> int main(int argc, char **argv) ... a concrete instance of NSCFArray? See Question&Answers more detail:os...

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

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431 views

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objective c - make mac package/bundle programmatically

through terminal you can make it with a command - "SetFile -a B filename" programmatically i think i should set ... 't find which one. 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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292 views

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objective c - Can I access the files used for external binary storage in Core Data?

I am working on a media DB application. I have a custom model with data storage and think about rewriting it ... its Core Data external file? See Question&Answers more detail:os...

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

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411 views

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objective c - How to get change in network connection notification from iOS Reachability Class?

Hi I want to capture whenever user gets a network connectivity in my application for this I have added apples ... . Am I missing anything? 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

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objective c - Animate removal of annotations

I have a map and a set of annotations, each with a 'parent' property. Currently when I add annotations I ... for when an annotation is removed. See Question&Answers more detail:os...

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

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591 views

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objective c - Opening word,excel, and PDF files without using UIWebview on iOS

Is it possible to open word and excel file in iPhone/iPad without using UIWebview? See Question&Answers more detail:os...

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

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509 views

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objective c - How to implement shortcut key input in Mac Cocoa App?

I've needed to make a global hot key input box in my Cocoa App. I know about Shortcut Recorder, but it is a ... don't know where to start from)? See Question&Answers more detail:os...

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

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292 views

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objective c - iOS 11+ How to migrate existing Core Data to Shared App Group for use in extension?

When I created an iOS 11 app using the core data template, it auto generated the following code in AppDelete.m. ... just created by that code. See Question&Answers more detail:os...

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

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objective c - Should I still copy/Block_copy the blocks under ARC?

I've just stumbled over the following SO topic: Why should we copy blocks rather than retain? which has the ... assigned to an ivar directly?. See Question&Answers more detail:os...

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

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446 views

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objective c - Resize UICollectionView cells after their data has been set

My UICollectionView cells contain UILabels with multiline text. I don't know the height of the cells until the text ... actual size of the cell? 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

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objective c - Obj-C: [NSString stringWithString:@"string"] vs. @"string"

I've seen people do something like [NSString stringWithString:@"some string"]. Why not just do @"some string"? For an ... "] vs. @"some string". See Question&Answers more detail:os...

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

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605 views

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objective c - How to get indexes from NSIndexset into an NSArray in cocoa?

I'm getting the select items from a table view with: NSIndexSet *selectedItems = [aTableView selectedRowIndexes]; what ... in a NSArray object? See Question&Answers more detail:os...

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

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520 views

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objective c - How to declare an immutable property backed by a mutable type?

I'd like to declare a public immutable property: @interface Foo @property(strong, readonly) NSSet *items; ... simply with declared properties? See Question&Answers more detail:os...

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

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372 views

1 answer

objective c - Drag an UIImageView from UIscrollView to another view

I crawled all the web, but nothing. I have a for loop to create uiimageview inside a uiscrollview controller. It's ... view (cart). 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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402 views

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objective c - rest web services in iphone

I have a problem now. I need to pass an transactionID and an user password to a rest service and it is suppose ... How do i continue from 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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446 views

1 answer

objective c - Get the representedObject values of NSCollectionViewItem NSButton click

I have read some questions and I find some very confusing and I don't really know if they answer my question. ... . Thank you for your time. See Question&Answers more detail:os...

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

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446 views

1 answer

objective c - Send push notification from ios app

I need to create a ios app who send notification. (similar to Pushmebaby (https://github.com/stefanhafeneger/PushMeBaby ... and have a nice day! See Question&Answers more detail:os...

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

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404 views

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objective c - Add Stickers in Custom KeyBoard Extension

I am looking to create a Custom Keyboard for iPhone,iPad. I have successfully integrated Phrases and Emoticons into the ... how to add ? 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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343 views

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objective c - Parsing ISO-639 language codes to show full English language names

I have an app on the app store which lets you launch apps in different languages. You can see a screenshot ... I could approach 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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331 views

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objective c - How to find out if an external headset is connected to an iPhone?

Is it possible to detect that the user has an external headset plugged into the iPhone's 3.5mm connector or ... silent if nothing is connected. See Question&Answers more detail:os...

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

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378 views

1 answer

objective c - Wrong method implementation address from otool for armv7?

I'm constantly getting 1 byte offset for implementation address of method shown by 'otool'. For an example 'otool ... to interpret the output ? See Question&Answers more detail:os...

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

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306 views

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objective c - Hiding properties from public framework headers, but leaving available internally

I need to have property in class that is excluded from public framework headers, but it is available for use ... way to improve this setup? See Question&Answers more detail:os...

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

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395 views

1 answer

objective c - What's the difference between adding pseudo-private ivars in a class extension or in the @implementation block?

What's the difference between putting pseudo-private instance variables in a class extension inside the . ... comments/new_objective-c_features/ See Question&Answers more detail:os...

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

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413 views

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objective c - How to post images on facebook wall on a single button click from an iPhone app

I am making an iPhone app where in the user wants that the selected image should be posted on facebook wall ... Please Help and Suggest. 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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485 views

1 answer

objective c - iphone - UIGestureRecognizer prevents UITableView from scrolling in Xcode 4.5

I have added two swipe gesture recognizers (swipe left and swipe right) to my UITableView. After that my table ... programatically, not in IB. See Question&Answers more detail:os...

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

0 votes

456 views

1 answer

objective c - iOS 8.3 and later, Facebook share text not inserted

After updating to iOS 8.3 the text is not inserted into the share dialog i use a standard UIActivityViewController ... a NSString and an NSURL See Question&Answers more detail:os...

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

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314 views

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objective c - Use autorelease when setting a retain property using dot syntax?

I see in some sample code that autorelease is used. I am not familiar with the instances when this is ... release in the dealloc method? See Question&Answers more detail:os...

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

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453 views

1 answer

objective c - NSURLConnection didReceiveData not called

I've read through tons of messages saying the same thing all over again : when you use a NSURLConnection, ... it would help greatly. 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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