Autocomplete view attachable to any UITextField. Ships with sample items source - google places items source. Can be configured to autocomplete from any source. Auto fits all available space, customizable look and feel
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TRAutocompleteViewDemo
screenshots new screenshots, demo update Feb 28, 2013
src
thirdparty autocomplete view with flexible async source, colors/margin customiza… Feb 27, 2013
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README.md Correct the spelling of CocoaPods in README Feb 13, 2016
TRAutocompleteView.podspec Update AFNetworking to 1.3 Jun 22, 2013

README.md

What is TRAutocompleteView?

TRAutocompleteView is highly customizable autocomplete/suggestionslist view. No inheritance, just a single line of code - attach TRAutocompleteView to any existing instance of UITextField, customize look and feel (optional), and that's it! It works on the iPhone and iPad and supports all possible orientations.

Step 0: Prerequisites

You'll need an iOS 5.1+ project

Step 1: Get TRAutocompleteView files (add as Git submodule)(recommended)

In terminal navigate to the root of your project directory and run these commands:

git submodule add git://github.com/TarasRoshko/TRAutocompleteView.git thirdparty/TRAutocompleteView
git commit -m 'TRAutocompleteView'

This creates new submodule, downloads the files to thirdparty/TRAutocompleteView directory within your project and creates new commit with updated git repo settings. Next run

git submodule update --init --recursive

Step 2: Add TRAutocompleteView to your project

Simply add all files from src directory (make sure you UNCHECK "Copy items"), If you want to use TRGoogleMapsAutocompleteItemsSource - you'll need to add AFNetworking as well (no worries, it's registered as submodule in TRAutocompleteView)

Step 3: Use it

Assume you have two ivars in your view controller:

    IBOutlet UITextField *_textField;
    TRAutocompleteView *_autocompleteView;

Bind autocompleteview to that UITextField (e.g in loadView method):

_autocompleteView = [TRAutocompleteView autocompleteViewBindedTo:_textField
                                                     usingSource:[[TRGoogleMapsAutocompleteItemsSource alloc] initWithMinimumCharactersToTrigger:2 apiKey:@"INSERT_YOUR_PLACES_API_KEY_HERE"]
                                                     cellFactory:[[TRGoogleMapsAutocompletionCellFactory alloc] initWithCellForegroundColor:[UIColor lightGrayColor] fontSize:14]
                                                    presentingIn:self];

What's going on here? You've just binded _autocompleteView to _textField, and used google maps completion source with google maps cell factory. Positioning, resizing, etc will be handled for you automatically. As you can see from the example above, if you want completely different items source and customized cells - there is nothing easier:

@protocol TRAutocompleteItemsSource <NSObject>

- (NSUInteger)minimumCharactersToTrigger;
- (void)itemsFor:(NSString *)query whenReady:(void (^)(NSArray *))suggestionsReady;

@end

@protocol TRSuggestionItem <NSObject>

- (NSString *)completionText;

@end

@protocol TRAutocompletionCell <NSObject>

- (void)updateWith:(id <TRSuggestionItem>)item;

@end

@protocol TRAutocompletionCellFactory <NSObject>

- (id <TRAutocompletionCell>)createReusableCellWithIdentifier:(NSString *)identifier;

@end

Conform TRAutocompleteItemsSource to provide your own items source, conform TRAutocompletionCellFactory to provide your custom cells.

Step 4: Customize TRAutocompleteView

TRAutocompleteView Customizations

Main customization step is to create your own cell and use it with CellFactory, but also you can use following properties

@property(nonatomic) UIColor *separatorColor;
@property(nonatomic) UITableViewCellSeparatorStyle separatorStyle;

@property(nonatomic) CGFloat topMargin;

Also, properties for tracking completion state:

@property(readonly) id<TRSuggestionItem> selectedSuggestion;
@property(readonly) NSArray *suggestions;
@property(copy) void (^didAutocompleteWith)(id <TRSuggestionItem>);

Step 5: Customize TRAutocompleteView

Check out Demo project, it's extremely easy to get started and requires a few simple steps to configure view for your needs, Google maps source/factory code will help you to understand what's going on

Using google places autocomplete

TRAutocompleteView ships with google places autocompletion source. In order to use it, you must generate YOUR OWN api key (get it here: https://code.google.com/apis/console) and pass it to TRGoogleMapsAutocompleteItemsSource initWithMinimumCharactersToTrigger:apiKey initializer. TRGoogleMapsAutocompleteItemsSource uses new Places API for autocompletion: https://developers.google.com/places/documentation/autocomplete

P.S Common mistake: DON NOT USE Google Maps API v3 key, you need Places API KEY instead, otherwise all requests will just fail with REQUEST_DENIED status code

CocoaPods

pod 'TRAutocompleteView', '~> 1.1'

License

FreeBSD