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Provides way to change localization inside application
.package(url: "https://github.com/nullic/DPLocalizationManager.git", from: "v1.0")

Build Status Carthage compatible Swift Package Manager compatible Version License Platform


DPLocalization provide easy enough way to change localization inside application.


###Dynamic localization

  1. Use autolocalizationKey property in code or as user defined runtime attribute in xib:
	myLabel.autolocalizationKey = @"my_label_localization_key";
	myButton.autolocalizationKey = @"my_button_name";
  1. Use -[setupAutolocalizationWithKey:keyPath:] or -[setupAutolocalizationWithKey:keyPath:arguments:] method of NSObject:
	[myLabel setupAutolocalizationWithKey:@"my_label_localization_key" keyPath:@"text"];
	[myLabel setupAutolocalizationWithKey:@"my_label_localization_template_key" keyPath:@"text" arguments:@[@"first", @"second"]];

Now after changing language (for example: dp_set_current_language(@"de")) all objects, which was configured for dynamic localization, update their content.

###Static localization

For static localization select language (for example: dp_set_current_language(@"de")) and use DPLocalizedString() macro in NSLocalizedString() maner.

###Proxy objects

Use DPAutolocalizationProxy class methods or their replacements.

    NSString *str = [NSString autolocalizingStringWithLocalizationKey:@"language"];

    CFShow((__bridge CFTypeRef)(str));
    CFShow((__bridge CFTypeRef)(str));

Output example:


Plural rules

List of all supported languages. Currently library suported only cardinal type. Library use .stringsdict files (Stringsdict File Format), with little changes:

  • NSStringFormatValueTypeKey is ignored
  • format specifiers must be 'Objective-C object'

Attributed strings

Some contols (since iOS 6) are support attributed values. You can specify attributes using special format (<attributes>{string}), it also reqire to set isAttributedKey property to YES. Attributes will apply for string inside {}, other parts will use parameters specified by control. For example:

/* Localizable.strings */
"TITLE" = "English <color=12,56,189 size=12>{(en)}";
UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectZero];
myLabel.autolocalizationKey = @"TITLE";
myLabel.isAttributedKey = YES;

Will set attributedText property with string that can be described as:

English {
    NSColor = "UIDeviceWhiteColorSpace 0 1";
    NSFont = "<UICTFont: 0x79743450> font-family: \".HelveticaNeueInterface-Regular\"; font-weight: normal; font-style: normal; font-size: 17.00pt";
    NSColor = "UIDeviceRGBColorSpace 0.0470588 0.219608 0.741176 1";
    NSFont = "<UICTFont: 0x79644cc0> font-family: \".HelveticaNeueInterface-Regular\"; font-weight: normal; font-style: normal; font-size: 12.00pt";

Avalible attributes:

  • name - set font name - <name=\"Courier-BoldOblique\">{string}
  • size - set font size - <size=12.0>{string} or <size=12>{string}
  • color - set text color in RGB or RGBA format - <color=12,56,189>{string} or <color=12,56,189,255>{string}
  • traits - set font traits: b (bold), i (italic); and text attributes u (underline), s (strikethrough), m (monospace); ! used for remove attibute - <traits=b>{string} or <traits=!b>{string}
  • kern - set font kerning
  • link - set link attribute - <link=\"https://github.com/nullic/DPLocalizationManager\">{link to DPLocalizationManager}
  • spacing - set space between paragraphs
  • linespacing - set space between lines
  • alignment - set alignment of paragraph <alignment=center>{Center\n}<alignment=left>{Left}. Valid values: left center right justified natural. Due to NSParagraphStyle behaviour each paragraph should be ended with \n and each section should have alignment if it is used in any place of localization string.


You can specify replacement using next format: [<replacer>]. This feature also reqire set isAttributedKey property to YES. Example:

/* Localizable.strings */
"TITLE_WITH_IMAGE" = "Title [<img style="max-width:100%;"=\"image_name_here\">]";
UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectZero];
myLabel.autolocalizationKey = @"TITLE_WITH_IMAGE";
myLabel.isAttributedKey = YES;

Avalible replacers:

  • img - insert image named - [<img style="max-width:100%;"=\"image_name_here\"> size=(16,16) offset=(0,0)] - size and offset are optinal parameters. By default size is (image.width, image.height); offset is (0, font.descender)



DPLocalization is available through CocoaPods, to install it simply add the following line to your Podfile:

pod "DPLocalization"


To integrate DPLocalization into your Xcode project using Carthage, specify it in your Cartfile:

github "nullic/DPLocalizationManager"

Run carthage update to build the framework and drag the built DPLocalization.framework into your Xcode project.

Localization check

dpstrings.py it is Python script, that used for checking most common usage of library. It's scan {some} folder for sources and resoures and make validation for common errors (missing keys, duplication).

Usage example: python dpstrings.py -p "MyProjectPath" -l "en;ru;".
For more information: python dpstrings.py --help.


DPLocalization is available under the MIT license. See the LICENSE file for more info.


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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.

Swiftpack is being maintained by Petr Pavlik | @ptrpavlik | @swiftpackco | API