Convert between JSON String and NSDictionary/NSArray
In iOS, the NSJSONSerialization class of Objective C is used to convert between JSON strings and obj...
Convert between NSString and NSData
With Objective C in iOS, we can convert the value of NSString to NSData.NSString* str = @"Hello Worl...
React Native init specific version
Use the react-native init project_name command to initialize a React Native project. By default, the...
React Native: No visible @interface for 'MyModule' declares the selector 'sendEventWithName:body:'
QuestionIn the iOS project, I use Objective C to customize a native module, and use sendEventWithNam...
Objective C Error 'RCTLinkingManager.h' file not found
QuestionUpgrade React Native to 0.61.5 and import header files on iOS.#import "RCTLinkingManager.h"X...
[iOS] When scheme is Release, Undefined symbol: _RCTSetLogFunction
QuestionUpgrade React Native 0.60 to 0.61. When Scheme is set to Debug, it runs without problems. An...
POST request using application/x-www-form-urlencoded with Objective C
Using Objective C to post request withapplication/x-www-form-urlencodedbody. The data will be encode...
React Native Error: must be used from main thread only
QuestionIn iOS, I use Objective C to create my own native module.RCT_EXPORT_METHOD(startPay:(NSStrin...
Git error fatal: No such remote 'origin'
QuestionOn my computer, I run some commands to create git repository. $ mkdir test$ cd test$ git ini...
React Native StatusBar dark-content not working on iOS 13 dark appearance
QuestionReact Native 0.60.5 . Light mode in iOS 13 or earlier versions is normal. However, there is ...
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