Secrets of launch arguments (iOS)

Tips of launch arguments for iOS development.

Transcript

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3. #import <UIKit/UIKit.h> ! #import "AppDelegate.h" ! int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain( argc, argv, nil, NSStringFromClass([AppDelegate class])); } }
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5. int main(int argc, char * argv[]) { @autoreleasepool { for (int count = 0; count < argc; count++) { NSLog(@"argv[%d] = %s", count, argv[count]); } ! return UIApplicationMain( argc, argv, nil, NSStringFromClass([AppDelegate class])); } } => argv[0] = /Users/kishikawakatsumi/Library/Application Support/iPhone Simulator/7.0.3-64/Applications/ 55179656-7577-4C46-AE05-6D83E25EC2CD/Arguments.app/Arguments argv[1] = foo argv[2] = bar
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7. - (void)viewDidLoad { [super viewDidLoad]; NSProcessInfo *processInfo = [NSProcessInfo processInfo]; ! NSLog(@"%@", processInfo.arguments); } => ( "/Users/kishikawakatsumi/Library/Application Support/iPhone Simulator/7.0.3-64/Applications/55179656-7577-4C46- AE05-6D83E25EC2CD/Arguments.app/Arguments", foo, bar )
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11. - (void)viewDidLoad { [super viewDidLoad]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSLog(@"%@", [userDefaults stringForKey:@"foo"]); NSLog(@"%@", [userDefaults stringForKey:@"baz"]); } => bar qux quux
13. - (void)viewDidLoad { [super viewDidLoad]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSLog(@"%d", [userDefaults boolForKey:@"boolArg"]); NSLog(@"%d", [userDefaults integerForKey:@"intArg"]); NSLog(@"%f", [userDefaults floatForKey:@"floatArg"]); NSLog(@"%@", [userDefaults stringForKey:@"stringArg"]); } => 1 18 3.141590 foo bar
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17. - (void)viewDidLoad { [super viewDidLoad]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSLog(@"%@", [userDefaults objectForKey:@"arrayArg"]); } => ( foo, bar, baz )
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23. NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSLog(@"%@", [userDefaults dictionaryRepresentation]); => { ... ! AppleLanguages = ( ja, en, fr, ... ); ! ... ! }
24. NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSLog(@"%@", [userDefaults dictionaryRepresentation]); => { ... ! AppleLanguages = ( es ); ! ... ! } b"QQMF-BOHVBHFT
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