Recent questions tagged objective

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objective c - create an UTF-8 string with BOM

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

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1 answer 1.1k views

objective c - Proper way to convert char* to NSString without initWithCString?

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

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1 answer 887 views

objective c - NSPredicateEditor & NSExpression - Can the display be different than the value for the predicate?

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

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1 answer 882 views

objective c - Mac (or c++) connection to binary WCF

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

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1 answer 1.0k views

objective c - NSIndexSet "-indexAtIndex:"?

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

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1 answer 986 views

objective c - NSEnumerator performance vs for loop in Cocoa

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

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1 answer 930 views

objective c - Notification in iOS using new Firebase Messaging SDK

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

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1 answer 937 views

objective c - Failed to download and open a PDF file with error failed to find PDF header in ios

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

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1 answer 1.0k views

objective c - On lazy instantiation and convenience methods

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

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1 answer 1.0k views

objective c - Quicker if-statement: if `variable` is "value" or "value"

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

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1 answer 968 views

objective c - IOS: UIImageView border white with radius display a strange dark line in 4 corners

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

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1 answer 877 views

objective c - sample code for collision detection in iPhone sdk

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

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1 answer 918 views

objective c - ios7 - iPhone 5 giving white space at the top

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

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1 answer 975 views

objective c - XCode How to evaluate String formula with an X expression inside

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

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1 answer 1.1k views

objective c - UIScrollView and cancel a zooming pinch gesture

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

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1 answer 921 views

objective c - iphone imagepickerController picking video from photo library

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

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1 answer 1.1k views

objective c - Download font .ttf file from web and store on iPhone

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

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1 answer 947 views

objective c - How to invalidate an iOS push notification on iPad when handled on iPhone?

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

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1 answer 1.1k views

objective c - App States with BOOL flags

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

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1 answer 1.0k views

objective c - How can I get the text from PDF page?

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

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1 answer 798 views

objective c - iOS iBeacon / Bluetooth connectivity when app is dead and gone

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

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1 answer 932 views

objective c - iOS local notification not firing second time but shows in getpendingnotificationrequests

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

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1 answer 906 views

objective c - Get integer value from another class

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

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1 answer 1.1k views

objective c - Difference between setting a property directly and using its setter?

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

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1 answer 998 views

objective c - How to force iOS camera to take a picture programmatically using AVFoundation?

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

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1 answer 813 views

objective c - iOS Concurrency - Not reaching anywhere's near theoretical maximum

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

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1 answer 1.0k views

objective c - Cocoa: NSRectFill on button click does not work

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

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1 answer 1.0k views

objective c - drawing cocos2d v3 no longer has ccDraw* functions, how do I draw without making nodes?

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

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1 answer 963 views

objective c - Finding a particular instance in an array by a property

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

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1 answer 1.0k views

objective c - wifi on iphone simulator

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

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1 answer 1.2k views

objective c - iOS -deprecated permission-facebook friends birthday using Graph API

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

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1 answer 1.0k views

objective c - dismissViewControllerAnimated crash at ios5

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

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1 answer 864 views

objective c - Circular Cropper Camera with UIImagePickerController iOS?

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

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1 answer 1.0k views

objective c - Delegate - How to Use?

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

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1 answer 872 views

objective c - AVAssetExportSession in ios 10 not working for iPhone 7

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

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