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//
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// AGEmojiKeyboardView.h
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// AGEmojiKeyboard
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//
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// Created by Ayush on 09/05/13.
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// Copyright (c) 2013 Ayush. All rights reserved.
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//
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// Set as inputView to textfields, this view class gives an
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// interface to the user to enter emoji characters.
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#import <UIKit/UIKit.h>
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typedef NS_ENUM(NSInteger, UMComEmojiKeyboardViewCategoryImage) {
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AGEmojiKeyboardViewCategoryImageFace,
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AGEmojiKeyboardViewCategoryImageBell,
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AGEmojiKeyboardViewCategoryImageFlower,
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AGEmojiKeyboardViewCategoryImageCar,
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AGEmojiKeyboardViewCategoryImageCharacters
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};
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@protocol UMComEmojiKeyboardViewDelegate;
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@protocol AGEmojiKeyboardViewDataSource;
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/**
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Keyboard class to present as an alternate.
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This keyboard presents the emojis supported by iOS.
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@note To modify appearance, use @p segmentsBar @p pageControl
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@p emojiPagesScrollView properties.
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*/
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@interface UMComEmojiKeyboardView : UIView
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/**
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Segment control displays the categories.
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*/
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@property (nonatomic, readonly) UISegmentedControl *segmentsBar;
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/**
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Pagecontrol displays the current page and number of pages on an emoji page.
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*/
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@property (nonatomic, readonly) UIPageControl *pageControl;
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/**
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Scroll view displays all the emoji pages.
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*/
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@property (nonatomic, readonly) UIScrollView *emojiPagesScrollView;
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@property (nonatomic, weak) id<UMComEmojiKeyboardViewDelegate> delegate;
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@property (nonatomic, weak) id<AGEmojiKeyboardViewDataSource> dataSource;
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/**
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@param frame Frame of the view to be initialised with.
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@param dataSource dataSource is required during the initialization to
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get all the relevent images to present in the view.
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*/
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- (instancetype)initWithFrame:(CGRect)frame
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dataSource:(id<AGEmojiKeyboardViewDataSource>)dataSource;
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@end
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/**
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Protocol to be followed by the dataSource of `AGEmojiKeyboardView`.
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*/
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@protocol AGEmojiKeyboardViewDataSource <NSObject>
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/**
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Method called on dataSource to get the category image when selected.
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@param emojiKeyBoardView EmojiKeyBoardView object on which user has tapped.
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@param category category to get the image for. @see AGEmojiKeyboardViewCategoryImage
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*/
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- (UIImage *)emojiKeyboardView:(UMComEmojiKeyboardView *)emojiKeyboardView
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imageForSelectedCategory:(UMComEmojiKeyboardViewCategoryImage)category;
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/**
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Method called on dataSource to get the category image when not-selected.
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@param emojiKeyBoardView EmojiKeyBoardView object on which user has tapped.
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@param category category to get the image for. @see AGEmojiKeyboardViewCategoryImage
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*/
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- (UIImage *)emojiKeyboardView:(UMComEmojiKeyboardView *)emojiKeyboardView
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imageForNonSelectedCategory:(UMComEmojiKeyboardViewCategoryImage)category;
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/**
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Method called on dataSource to get the back button image to be shown in the view.
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@param emojiKeyBoardView EmojiKeyBoardView object on which user has tapped.
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*/
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- (UIImage *)backSpaceButtonImageForEmojiKeyboardView:(UMComEmojiKeyboardView *)emojiKeyboardView;
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@optional
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/**
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Method called on dataSource to get category that should be shown by
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default i.e. when the keyboard is just presented.
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@note By default `AGEmojiKeyboardViewCategoryImageRecent` is shown.
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@param emojiKeyBoardView EmojiKeyBoardView object shown.
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*/
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- (UMComEmojiKeyboardViewCategoryImage)defaultCategoryForEmojiKeyboardView:(UMComEmojiKeyboardView *)emojiKeyboardView;
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/**
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Method called on dataSource to get number of emojis to be maintained in
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recent category.
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@note By default `50` is used.
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@param emojiKeyBoardView EmojiKeyBoardView object shown.
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*/
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- (NSUInteger)recentEmojisMaintainedCountForEmojiKeyboardView:(UMComEmojiKeyboardView *)emojiKeyboardView;
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@end
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/**
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Protocol to be followed by the delegate of `AGEmojiKeyboardView`.
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*/
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@protocol UMComEmojiKeyboardViewDelegate <NSObject>
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/**
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Delegate method called when user taps an emoji button
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@param emojiKeyBoardView EmojiKeyBoardView object on which user has tapped.
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@param emoji Emoji used by user
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*/
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- (void)emojiKeyBoardView:(UMComEmojiKeyboardView *)emojiKeyBoardView
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didUseEmoji:(NSString *)emoji;
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/**
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Delegate method called when user taps on the backspace button
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@param emojiKeyBoardView EmojiKeyBoardView object on which user has tapped.
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*/
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- (void)emojiKeyBoardViewDidPressBackSpace:(UMComEmojiKeyboardView *)emojiKeyBoardView;
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@end
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+357
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//
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// AGEmojiKeyboardView.m
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// AGEmojiKeyboard
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//
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// Created by Ayush on 09/05/13.
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// Copyright (c) 2013 Ayush. All rights reserved.
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//
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#import "UMComEmojiKeyBoardView.h"
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#import "UMComEmojiPageView.h"
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#import "UMComResouceDefines.h"
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static const CGFloat ButtonWidth = 53;
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static const CGFloat ButtonHeight = 50;
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#define ColumnNum 7
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#define RowNum 3
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static const NSUInteger DefaultRecentEmojisMaintainedCount = 50;
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static NSString *const segmentRecentName = @"Recent";
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NSString *const RecentUsedEmojiCharactersKey = @"RecentUsedEmojiCharactersKey";
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@interface UMComEmojiKeyboardView () <UIScrollViewDelegate, AGEmojiPageViewDelegate>
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@property (nonatomic) UISegmentedControl *segmentsBar;
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@property (nonatomic) UIPageControl *pageControl;
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@property (nonatomic) UIScrollView *emojiPagesScrollView;
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@property (nonatomic) NSMutableDictionary *emojis;
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@property (nonatomic) NSMutableArray *pageViews;
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@property (nonatomic) NSString *category;
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@end
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@implementation UMComEmojiKeyboardView
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- (NSDictionary *)emojis {
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if (!_emojis) {
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NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"UMComSDKResources.bundle/EmojisList"
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ofType:@"plist"];
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NSDictionary *emojis = [NSDictionary dictionaryWithContentsOfFile:plistPath];
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NSString *emojiString = [emojis valueForKey:@"People"];
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NSArray * emojisArray = [emojiString componentsSeparatedByString:@" "];
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_emojis = [NSMutableDictionary dictionaryWithObject:emojisArray forKey:@"People"];
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}
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return _emojis;
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}
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- (NSString *)categoryNameAtIndex:(NSUInteger)index {
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NSArray *categoryList = @[@"People", @"Objects", @"Nature", @"Places", @"Symbols"];
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return categoryList[index];
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}
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- (UMComEmojiKeyboardViewCategoryImage)defaultSelectedCategory {
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if ([self.dataSource respondsToSelector:@selector(defaultCategoryForEmojiKeyboardView:)]) {
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return [self.dataSource defaultCategoryForEmojiKeyboardView:self];
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}
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return AGEmojiKeyboardViewCategoryImageFace;
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}
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- (NSUInteger)recentEmojisMaintainedCount {
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if ([self.dataSource respondsToSelector:@selector(recentEmojisMaintainedCountForEmojiKeyboardView:)]) {
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return [self.dataSource recentEmojisMaintainedCountForEmojiKeyboardView:self];
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}
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return DefaultRecentEmojisMaintainedCount;
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}
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- (NSArray *)imagesForSelectedSegments {
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static NSMutableArray *array;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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array = [NSMutableArray array];
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for (UMComEmojiKeyboardViewCategoryImage i = AGEmojiKeyboardViewCategoryImageFace;
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i <= AGEmojiKeyboardViewCategoryImageCharacters;
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++i) {
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[array addObject:[self.dataSource emojiKeyboardView:self imageForSelectedCategory:i]];
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}
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});
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return array;
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}
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- (NSArray *)imagesForNonSelectedSegments {
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static NSMutableArray *array;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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array = [NSMutableArray array];
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for (UMComEmojiKeyboardViewCategoryImage i = AGEmojiKeyboardViewCategoryImageFace;
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i <= AGEmojiKeyboardViewCategoryImageCharacters;
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++i) {
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[array addObject:[self.dataSource emojiKeyboardView:self imageForNonSelectedCategory:i]];
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}
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});
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return array;
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}
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- (instancetype)initWithFrame:(CGRect)frame dataSource:(id<AGEmojiKeyboardViewDataSource>)dataSource {
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self = [super initWithFrame:frame];
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if (self) {
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// initialize category
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self.backgroundColor = [UIColor whiteColor];
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_dataSource = dataSource;
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self.category = [self categoryNameAtIndex:self.defaultSelectedCategory];
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self.pageControl = [[UIPageControl alloc] init];
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self.pageControl.hidesForSinglePage = YES;
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self.pageControl.currentPage = 0;
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self.pageControl.backgroundColor = [UIColor clearColor];
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CGSize pageControlSize = [self.pageControl sizeForNumberOfPages:3];
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CGSize frameSize = CGSizeMake(CGRectGetWidth(self.bounds),
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CGRectGetHeight(self.bounds) - pageControlSize.height);
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NSUInteger numberOfPages = [self numberOfPagesForCategory:self.category
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inFrameSize:frameSize];
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self.pageControl.numberOfPages = numberOfPages;
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// pageControlSize = [self.pageControl sizeForNumberOfPages:numberOfPages];
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CGRect pageControlFrame = CGRectMake((CGRectGetWidth(self.bounds) - pageControlSize.width) / 2,
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CGRectGetHeight(self.bounds) - pageControlSize.height,
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pageControlSize.width,
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pageControlSize.height);
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self.pageControl.frame = CGRectIntegral(pageControlFrame);
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[self.pageControl addTarget:self
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action:@selector(pageControlTouched:)
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forControlEvents:UIControlEventValueChanged];
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self.pageControl.currentPageIndicatorTintColor = [UIColor darkGrayColor];
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self.pageControl.pageIndicatorTintColor = [UIColor lightGrayColor];
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[self addSubview:self.pageControl];
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CGRect scrollViewFrame = CGRectMake(0,
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CGRectGetHeight(self.segmentsBar.bounds),
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CGRectGetWidth(self.bounds),
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CGRectGetHeight(self.bounds) - CGRectGetHeight(self.segmentsBar.bounds) - pageControlSize.height);
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self.emojiPagesScrollView = [[UIScrollView alloc] initWithFrame:scrollViewFrame];
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self.emojiPagesScrollView.pagingEnabled = YES;
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self.emojiPagesScrollView.showsHorizontalScrollIndicator = NO;
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self.emojiPagesScrollView.showsVerticalScrollIndicator = NO;
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self.emojiPagesScrollView.delegate = self;
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[self addSubview:self.emojiPagesScrollView];
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}
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return self;
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}
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- (void)layoutSubviews {
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CGSize pageControlSize = [self.pageControl sizeForNumberOfPages:3];
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NSUInteger numberOfPages = [self numberOfPagesForCategory:self.category
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inFrameSize:CGSizeMake(CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds) - CGRectGetHeight(self.segmentsBar.bounds) - pageControlSize.height)];
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NSInteger currentPage = (self.pageControl.currentPage > numberOfPages) ? numberOfPages : self.pageControl.currentPage;
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// if (currentPage > numberOfPages) it is set implicitly to max pageNumber available
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self.pageControl.numberOfPages = numberOfPages;
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pageControlSize = [self.pageControl sizeForNumberOfPages:numberOfPages];
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CGRect pageControlFrame = CGRectMake((CGRectGetWidth(self.bounds) - pageControlSize.width) / 2,
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CGRectGetHeight(self.bounds) - pageControlSize.height,
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pageControlSize.width,
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pageControlSize.height);
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self.pageControl.frame = CGRectIntegral(pageControlFrame);
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self.emojiPagesScrollView.frame = CGRectMake(0,
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CGRectGetHeight(self.segmentsBar.bounds),
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CGRectGetWidth(self.bounds),
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CGRectGetHeight(self.bounds) - CGRectGetHeight(self.segmentsBar.bounds) - pageControlSize.height);
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[self.emojiPagesScrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
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self.emojiPagesScrollView.contentOffset = CGPointMake(CGRectGetWidth(self.emojiPagesScrollView.bounds) * currentPage, 0);
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self.emojiPagesScrollView.contentSize = CGSizeMake(CGRectGetWidth(self.emojiPagesScrollView.bounds) * numberOfPages,
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CGRectGetHeight(self.emojiPagesScrollView.bounds));
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[self purgePageViews];
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self.pageViews = [NSMutableArray array];
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[self setPage:currentPage];
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}
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#pragma mark event handlers
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- (void)setSelectedCategoryImageInSegmentControl:(UISegmentedControl *)segmentsBar
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atIndex:(NSInteger)index {
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for (int i=0; i < self.segmentsBar.numberOfSegments; ++i) {
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[segmentsBar setImage:self.imagesForNonSelectedSegments[i] forSegmentAtIndex:i];
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}
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[segmentsBar setImage:self.imagesForSelectedSegments[index] forSegmentAtIndex:index];
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}
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- (void)categoryChangedViaSegmentsBar:(UISegmentedControl *)sender {
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// recalculate number of pages for new category and recreate emoji pages
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self.category = [self categoryNameAtIndex:sender.selectedSegmentIndex];
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[self setSelectedCategoryImageInSegmentControl:sender
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atIndex:sender.selectedSegmentIndex];
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self.pageControl.currentPage = 0;
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[self setNeedsLayout];
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}
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- (void)pageControlTouched:(UIPageControl *)sender {
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CGRect bounds = self.emojiPagesScrollView.bounds;
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bounds.origin.x = CGRectGetWidth(bounds) * sender.currentPage;
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bounds.origin.y = 0;
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// scrollViewDidScroll is called here. Page set at that time.
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[self.emojiPagesScrollView scrollRectToVisible:bounds animated:YES];
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}
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// Track the contentOffset of the scroll view, and when it passes the mid
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// point of the current view’s width, the views are reconfigured.
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- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
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CGFloat pageWidth = CGRectGetWidth(scrollView.frame);
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NSInteger newPageNumber = floor((scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
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if (self.pageControl.currentPage == newPageNumber) {
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return;
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}
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self.pageControl.currentPage = newPageNumber;
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[self setPage:self.pageControl.currentPage];
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}
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#pragma mark change a page on scrollView
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// Check if setting pageView for an index is required
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- (BOOL)requireToSetPageViewForIndex:(NSUInteger)index {
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if (index >= self.pageControl.numberOfPages) {
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return NO;
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}
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for (UMComEmojiPageView *page in self.pageViews) {
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if ((page.frame.origin.x / CGRectGetWidth(self.emojiPagesScrollView.bounds)) == index) {
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return NO;
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}
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}
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return YES;
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}
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// Create a pageView and add it to the scroll view.
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- (UMComEmojiPageView *)synthesizeEmojiPageView {
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CGRect pageViewFrame = CGRectMake(0,
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0,
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CGRectGetWidth(self.emojiPagesScrollView.bounds),
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CGRectGetHeight(self.emojiPagesScrollView.bounds));
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UMComEmojiPageView *pageView = [[UMComEmojiPageView alloc] initWithFrame: pageViewFrame
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backSpaceButtonImage:UMComImageWithImageName(@"um_emoji_delete")
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buttonSize:CGSizeMake(ButtonWidth, ButtonHeight)
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rows:3
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columns:7];
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pageView.delegate = self;
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[self.pageViews addObject:pageView];
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[self.emojiPagesScrollView addSubview:pageView];
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return pageView;
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}
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// return a pageView that can be used in the current scrollView.
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// look for an available pageView in current pageView-s on scrollView.
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// If all are in use i.e. are of current page or neighbours
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// of current page, we create a new one
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- (UMComEmojiPageView *)usableEmojiPageView {
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UMComEmojiPageView *pageView = nil;
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for (UMComEmojiPageView *page in self.pageViews) {
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NSUInteger pageNumber = page.frame.origin.x / CGRectGetWidth(self.emojiPagesScrollView.bounds);
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if (abs((int)(pageNumber - self.pageControl.currentPage)) > 1) {
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pageView = page;
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break;
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}
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}
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if (!pageView) {
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pageView = [self synthesizeEmojiPageView];
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}
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return pageView;
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}
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// Set emoji page view for given index.
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- (void)setEmojiPageViewInScrollView:(UIScrollView *)scrollView atIndex:(NSUInteger)index {
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if (![self requireToSetPageViewForIndex:index]) {
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return;
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}
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UMComEmojiPageView *pageView = [self usableEmojiPageView];
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// NSUInteger rows = [self numberOfRowsForFrameSize:scrollView.bounds.size];
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// NSUInteger columns = [self numberOfColumnsForFrameSize:scrollView.bounds.size];
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NSUInteger rows = RowNum;
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NSUInteger columns = ColumnNum;
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NSUInteger startingIndex = index * (rows * columns - 1);
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NSUInteger endingIndex = (index + 1) * (rows * columns - 1);
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NSMutableArray *buttonTexts = [self emojiTextsForCategory:self.category
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fromIndex:startingIndex
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toIndex:endingIndex];
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[pageView setButtonTexts:buttonTexts];
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pageView.frame = CGRectMake(index * CGRectGetWidth(scrollView.bounds),
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0,
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CGRectGetWidth(scrollView.bounds),
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CGRectGetHeight(scrollView.bounds));
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}
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// Set the current page.
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// sets neightbouring pages too, as they are viewable by part scrolling.
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- (void)setPage:(NSInteger)page {
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[self setEmojiPageViewInScrollView:self.emojiPagesScrollView atIndex:page - 1];
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[self setEmojiPageViewInScrollView:self.emojiPagesScrollView atIndex:page];
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[self setEmojiPageViewInScrollView:self.emojiPagesScrollView atIndex:page + 1];
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}
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- (void)purgePageViews {
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for (UMComEmojiPageView *page in self.pageViews) {
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page.delegate = nil;
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||||
}
|
||||
self.pageViews = nil;
|
||||
}
|
||||
|
||||
#pragma mark data methods
|
||||
|
||||
- (NSUInteger)numberOfColumnsForFrameSize:(CGSize)frameSize {
|
||||
return (NSUInteger)floor(frameSize.width / ButtonWidth);
|
||||
}
|
||||
|
||||
- (NSUInteger)numberOfRowsForFrameSize:(CGSize)frameSize {
|
||||
return (NSUInteger)floor(frameSize.height / ButtonHeight);
|
||||
}
|
||||
|
||||
- (NSArray *)emojiListForCategory:(NSString *)category {
|
||||
return [self.emojis objectForKey:category];
|
||||
}
|
||||
|
||||
// for a given frame size of scroll view, return the number of pages
|
||||
// required to show all the emojis for a category
|
||||
- (NSUInteger)numberOfPagesForCategory:(NSString *)category inFrameSize:(CGSize)frameSize {
|
||||
|
||||
if ([category isEqualToString:segmentRecentName]) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
NSUInteger emojiCount = [[self emojiListForCategory:category] count];
|
||||
NSUInteger numberOfRows = RowNum;
|
||||
NSUInteger numberOfColumns = ColumnNum;
|
||||
NSUInteger numberOfEmojisOnAPage = (numberOfRows * numberOfColumns) - 1;
|
||||
|
||||
NSUInteger numberOfPages = (NSUInteger)ceil((float)emojiCount / numberOfEmojisOnAPage);
|
||||
return numberOfPages;
|
||||
}
|
||||
|
||||
// return the emojis for a category, given a staring and an ending index
|
||||
- (NSMutableArray *)emojiTextsForCategory:(NSString *)category
|
||||
fromIndex:(NSUInteger)start
|
||||
toIndex:(NSUInteger)end {
|
||||
NSArray *emojis = [self emojiListForCategory:category];
|
||||
end = ([emojis count] > end)? end : [emojis count];
|
||||
NSIndexSet *index = [[NSIndexSet alloc] initWithIndexesInRange:NSMakeRange(start, end-start)];
|
||||
return [[emojis objectsAtIndexes:index] mutableCopy];
|
||||
}
|
||||
|
||||
#pragma mark EmojiPageViewDelegate
|
||||
// add the emoji to recents
|
||||
- (void)emojiPageView:(UMComEmojiPageView *)emojiPageView didUseEmoji:(NSString *)emoji {
|
||||
// [self setInRecentsEmoji:emoji];
|
||||
[self.delegate emojiKeyBoardView:self didUseEmoji:emoji];
|
||||
}
|
||||
|
||||
- (void)emojiPageViewDidPressBackSpace:(UMComEmojiPageView *)emojiPageView {
|
||||
[self.delegate emojiKeyBoardViewDidPressBackSpace:self];
|
||||
}
|
||||
|
||||
@end
|
||||
+57
@@ -0,0 +1,57 @@
|
||||
//
|
||||
// AGEmojiPageView.h
|
||||
// AGEmojiKeyboard
|
||||
//
|
||||
// Created by Ayush on 09/05/13.
|
||||
// Copyright (c) 2013 Ayush. All rights reserved.
|
||||
//
|
||||
|
||||
#import <UIKit/UIKit.h>
|
||||
|
||||
@protocol AGEmojiPageViewDelegate;
|
||||
|
||||
@interface UMComEmojiPageView : UIView
|
||||
|
||||
@property (nonatomic, assign) id<AGEmojiPageViewDelegate> delegate;
|
||||
|
||||
/**
|
||||
Creates and returns an EmojiPageView
|
||||
|
||||
@param backSpaceButtonImage Imge to be used to present the back space button.
|
||||
@param buttonsSize Size for the button representing a single emoji
|
||||
@param rows Number of rows in a single EmojiPageView
|
||||
@param columns Number of columns in a single EmojiPageView. Also represents the number of emojis shown in a row.
|
||||
|
||||
@return An instance of EmojiPageView
|
||||
*/
|
||||
- (id)initWithFrame:(CGRect)frame
|
||||
backSpaceButtonImage:(UIImage *)backSpaceButtonImage
|
||||
buttonSize:(CGSize)buttonSize
|
||||
rows:(NSUInteger)rows
|
||||
columns:(NSUInteger)columns;
|
||||
|
||||
/**
|
||||
Sets texts on buttons in the EmojiPageView.
|
||||
|
||||
@param buttonTexts An array of texts to be set on buttons in EmojiPageView
|
||||
*/
|
||||
- (void)setButtonTexts:(NSMutableArray *)buttonTexts;
|
||||
|
||||
@end
|
||||
|
||||
@protocol AGEmojiPageViewDelegate <NSObject>
|
||||
|
||||
/**
|
||||
Delegate method called when user taps an emoji button
|
||||
@param emojiPageView EmojiPageView object on which user has tapped.
|
||||
@param emoji Emoji pressed by user
|
||||
*/
|
||||
- (void)emojiPageView:(UMComEmojiPageView *)emojiPageView didUseEmoji:(NSString *)emoji;
|
||||
|
||||
/**
|
||||
Delegate method called when user taps on the backspace button
|
||||
@param emojiPageView EmojiPageView object on which user has tapped.
|
||||
*/
|
||||
- (void)emojiPageViewDidPressBackSpace:(UMComEmojiPageView *)emojiPageView;
|
||||
|
||||
@end
|
||||
+121
@@ -0,0 +1,121 @@
|
||||
//
|
||||
// AGEmojiPageView.m
|
||||
// AGEmojiKeyboard
|
||||
//
|
||||
// Created by Ayush on 09/05/13.
|
||||
// Copyright (c) 2013 Ayush. All rights reserved.
|
||||
//
|
||||
|
||||
#import "UMComEmojiPageView.h"
|
||||
|
||||
#define BACKSPACE_BUTTON_TAG 10
|
||||
#define BUTTON_FONT_SIZE 32
|
||||
|
||||
@interface UMComEmojiPageView ()
|
||||
|
||||
@property (nonatomic) CGSize buttonSize;
|
||||
@property (nonatomic) NSMutableArray *buttons;
|
||||
@property (nonatomic) NSUInteger columns;
|
||||
@property (nonatomic) NSUInteger rows;
|
||||
@property (nonatomic) UIImage *backSpaceButtonImage;
|
||||
|
||||
@end
|
||||
|
||||
@implementation UMComEmojiPageView
|
||||
|
||||
- (void)setButtonTexts:(NSMutableArray *)buttonTexts {
|
||||
|
||||
NSAssert(buttonTexts != nil, @"Array containing texts to be set on buttons is nil");
|
||||
|
||||
if (([self.buttons count] - 1) == [buttonTexts count]) {
|
||||
// just reset text on each button
|
||||
for (NSUInteger i = 0; i < [buttonTexts count]; ++i) {
|
||||
[self.buttons[i] setTitle:buttonTexts[i] forState:UIControlStateNormal];
|
||||
}
|
||||
} else {
|
||||
[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
|
||||
self.buttons = nil;
|
||||
self.buttons = [NSMutableArray arrayWithCapacity:self.rows * self.columns];
|
||||
for (NSUInteger i = 0; i < [buttonTexts count]; ++i) {
|
||||
if (i % (self.rows *self.columns -1) == 0 && i > 0) {
|
||||
continue;
|
||||
}
|
||||
UIButton *button = [self createButtonAtIndex:i];
|
||||
[button setTitle:buttonTexts[i] forState:UIControlStateNormal];
|
||||
[self addToViewButton:button];
|
||||
}
|
||||
UIButton *button = [self createButtonAtIndex:self.rows * self.columns - 1];
|
||||
[button setContentEdgeInsets:UIEdgeInsetsMake(10, 10, 10, 10)];
|
||||
[button setImage:self.backSpaceButtonImage forState:UIControlStateNormal];
|
||||
button.tag = BACKSPACE_BUTTON_TAG;
|
||||
[self addToViewButton:button];
|
||||
}
|
||||
}
|
||||
|
||||
- (void)addToViewButton:(UIButton *)button {
|
||||
|
||||
NSAssert(button != nil, @"Button to be added is nil");
|
||||
|
||||
[self.buttons addObject:button];
|
||||
[self addSubview:button];
|
||||
}
|
||||
|
||||
// Padding is the expected space between two buttons.
|
||||
// Thus, space of top button = padding / 2
|
||||
// extra padding according to particular button's pos = pos * padding
|
||||
// Margin includes, size of buttons in between = pos * buttonSize
|
||||
// Thus, margin = padding / 2
|
||||
// + pos * padding
|
||||
// + pos * buttonSize
|
||||
|
||||
- (CGFloat)XMarginForButtonInColumn:(NSInteger)column {
|
||||
CGFloat padding = ((CGRectGetWidth(self.bounds) - self.columns * self.buttonSize.width) / self.columns);
|
||||
return (padding / 2 + column * (padding + self.buttonSize.width));
|
||||
}
|
||||
|
||||
- (CGFloat)YMarginForButtonInRow:(NSInteger)rowNumber {
|
||||
CGFloat padding = ((CGRectGetHeight(self.bounds) - self.rows * self.buttonSize.height) / self.rows);
|
||||
return (padding / 2 + rowNumber * (padding + self.buttonSize.height));
|
||||
}
|
||||
|
||||
- (UIButton *)createButtonAtIndex:(NSUInteger)index {
|
||||
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
|
||||
button.titleLabel.font = [UIFont fontWithName:@"Apple color emoji" size:BUTTON_FONT_SIZE];
|
||||
NSInteger row = (NSInteger)(index / self.columns);
|
||||
NSInteger column = (NSInteger)(index % self.columns);
|
||||
button.frame = CGRectIntegral(CGRectMake([self XMarginForButtonInColumn:column],
|
||||
[self YMarginForButtonInRow:row],
|
||||
self.buttonSize.width,
|
||||
self.buttonSize.height));
|
||||
|
||||
[button addTarget:self
|
||||
action:@selector(emojiButtonPressed:)
|
||||
forControlEvents:UIControlEventTouchUpInside];
|
||||
return button;
|
||||
}
|
||||
|
||||
- (id)initWithFrame:(CGRect)frame
|
||||
backSpaceButtonImage:(UIImage *)backSpaceButtonImage
|
||||
buttonSize:(CGSize)buttonSize
|
||||
rows:(NSUInteger)rows
|
||||
columns:(NSUInteger)columns {
|
||||
self = [super initWithFrame:frame];
|
||||
if (self) {
|
||||
_backSpaceButtonImage = backSpaceButtonImage;
|
||||
_buttonSize = buttonSize;
|
||||
_columns = columns;
|
||||
_rows = rows;
|
||||
_buttons = [[NSMutableArray alloc] initWithCapacity:rows * columns];
|
||||
}
|
||||
return self;
|
||||
}
|
||||
|
||||
- (void)emojiButtonPressed:(UIButton *)button {
|
||||
if (button.tag == BACKSPACE_BUTTON_TAG) {
|
||||
[self.delegate emojiPageViewDidPressBackSpace:self];
|
||||
return;
|
||||
}
|
||||
[self.delegate emojiPageView:self didUseEmoji:button.titleLabel.text];
|
||||
}
|
||||
|
||||
@end
|
||||
Reference in New Issue
Block a user