Created
July 26, 2012 19:05
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"modern Objective-C" syntax
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| //"modern Objective-C" syntax | |
| //new enum-macros for better autocompletion, switch statement, more precise warnings, ... | |
| typedef NS_ENUM(NSInteger, MyViewContentMode) { | |
| MyViewContentModeLeft, | |
| MyViewContentModeRight, | |
| MyViewContentModeTopLeft, | |
| MyViewContentModeTopRight, | |
| MyViewContentModeBottomLeft, | |
| MyViewContentModeBottomRight, | |
| }; | |
| typedef NS_OPTIONS(NSUInteger, MyViewAutoresizing) { | |
| MyViewAutoresizingNone = 0, | |
| MyViewAutoresizingFlexibleLeftMargin = 1 << 0, | |
| MyViewAutoresizingFlexibleWidth = 1 << 1, | |
| MyViewAutoresizingFlexibleRightMargin = 1 << 2, | |
| }; | |
| @interface MyModernClass() //Class extension: Private interface | |
| @property(nonatomic, strong) NSNumber* doubleNumber; | |
| @end | |
| @implementation MyModernClass | |
| -(void)startAsynchronous{ | |
| _doubleNumber = [NSNumber numberWithDouble: 4.6]; | |
| [self doSomethingLaterDeclared]; | |
| } | |
| -(void)doSomethingLaterDeclared{ | |
| //literals | |
| NSArray* array = @[@"one", @"two"]; | |
| NSDictionary* dic = @{@"key1":@"value1", | |
| @"key2":@YES, | |
| @"key3":@3.0}; | |
| NSDictionary* jsonPostBodyDic = @{@"update":@{ | |
| @"app":@{ | |
| @"bundle_id":@NO, | |
| @"version":@[@1, @0, @0] | |
| }, | |
| @"last_updated": [NSNull null] | |
| } | |
| }; | |
| //container subscripting | |
| NSNumber* boolNumber = dic[@"key2"]; //instead of [dic objectForKey:@"key2"]; | |
| NSString* string = array[1]; //instead of [array objectAtIndex:idx]; | |
| NSMutableDictionary* mutableDic = [NSMutableDictionary dictionaryWithDictionary:dic]; | |
| mutableDic[@"key2"] = @"asd"; // instead of [mutableDic setObject:@"asd" forKey:@"key2"] | |
| mutableDic[@"key4"] = @34.5f; // instead of [mutableDic setObject:@34.5f forKey:@"key4"] | |
| NSMutableArray* mutableArray = [NSMutableArray arrayWithArray:array]; | |
| mutableArray[1] = @"neu"; // instead of [mutableArray replaceObjectAtIndex:1 withObject:@"neu"]; | |
| mutableArray[[mutableArray count]] = @"neuneu"; // instead of [mutableArray addObject:@"neuneu"];; | |
| } | |
| @end |
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