版本记录

前言

YYText是一个专门处理文字的框架，有了它处理文字变得非常方便，这一篇我继续介绍YYText的使用方法，希望对大家能有所帮助。大家如感兴趣还可以参考：
1.YYText使用篇（一）
2.YYText使用篇（二）
3.YYText使用篇（三）
4.YYText使用篇（四）
5.YYText使用篇（五）
6.YYText使用篇（六）
7.YYText使用篇（七）
8.YYText使用篇（八）
下面给出的实例就是markdown和Emoticon展示

一、YYText示例之markdown

下面直接看代码

#import "YYTextMarkdownExample.h"
#import "YYText.h"
#import "YYImage.h"
#import "UIImage+YYWebImage.h"
#import "UIView+YYAdd.h"
#import "NSBundle+YYAdd.h"
#import "NSString+YYAdd.h"
#import "YYTextExampleHelper.h"

@interface YYTextMarkdownExample () <YYTextViewDelegate>

@property (nonatomic, strong) YYTextView *textView;

@end

@implementation YYTextMarkdownExample

#pragma mark - Override Base Function

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    
    if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
        self.automaticallyAdjustsScrollViewInsets = NO;
    }
    
    NSString *text = @"#Markdown Editor\nThis is a simple markdown editor based on `YYTextView`.\n\n*********************************************\nIt\'s *italic* style.\n\nIt\'s also _italic_ style.\n\nIt\'s **bold** style.\n\nIt\'s ***italic and bold*** style.\n\nIt\'s __underline__ style.\n\nIt\'s ~~deleteline~~ style.\n\n\nHere is a link: [YYKit](https://github.com/ibireme/YYKit)\n\nHere is some code:\n\n\tif(a){\n\t\tif(b){\n\t\t\tif(c){\n\t\t\t\tprintf(\"haha\");\n\t\t\t}\n\t\t}\n\t}\n";
    
    YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
    [parser setColorWithDarkTheme];
    
    YYTextView *textView = [YYTextView new];
    textView.text = text;
    textView.font = [UIFont systemFontOfSize:14];
    textView.textParser = parser;
    textView.size = self.view.size;
    textView.textContainerInset = UIEdgeInsetsMake(10, 10, 10, 10);
    textView.delegate = self;
    if (kiOS7Later) {
        textView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
    }
    textView.backgroundColor = [UIColor colorWithWhite:0.134 alpha:1.000];
    textView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);
    textView.scrollIndicatorInsets = textView.contentInset;
    textView.selectedRange = NSMakeRange(text.length, 0);
    [self.view addSubview:textView];
    self.textView = textView;
}

#pragma mark - Action && Notification

- (void)edit:(UIBarButtonItem *)item
{
    if (_textView.isFirstResponder) {
        [_textView resignFirstResponder];
    }
    else {
        [_textView becomeFirstResponder];
    }
}

#pragma mark - YYTextViewDelegate

- (void)textViewDidBeginEditing:(YYTextView *)textView
{
    UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                                                                                target:self
                                                                                action:@selector(edit:)];
    self.navigationItem.rightBarButtonItem = buttonItem;
}

- (void)textViewDidEndEditing:(YYTextView *)textView
{
    self.navigationItem.rightBarButtonItem = nil;
}

@end

下面看效果展示图

markdown首页

markdown gif展示

二、YYText示例之Emoticon

下面看代码。

#import "YYTextEmoticonExample.h"
#import "YYText.h"
#import "YYImage.h"
#import "UIImage+YYWebImage.h"
#import "UIView+YYAdd.h"
#import "NSBundle+YYAdd.h"
#import "NSString+YYAdd.h"
#import "YYTextExampleHelper.h"

@interface YYTextEmoticonExample () <YYTextViewDelegate>

@property (nonatomic, strong) YYTextView *textView;

@end

@implementation YYTextEmoticonExample

#pragma mark - Override Base Function

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
        self.automaticallyAdjustsScrollViewInsets = NO;
    }
    
    NSMutableDictionary *mapper = [NSMutableDictionary new];
    mapper[@":smile:"] = [self imageWithName:@"002"];
    mapper[@":cool:"] = [self imageWithName:@"013"];
    mapper[@":biggrin:"] = [self imageWithName:@"047"];
    mapper[@":arrow:"] = [self imageWithName:@"007"];
    mapper[@":confused:"] = [self imageWithName:@"041"];
    mapper[@":cry:"] = [self imageWithName:@"010"];
    mapper[@":wink:"] = [self imageWithName:@"085"];
    
    YYTextSimpleEmoticonParser *parser = [YYTextSimpleEmoticonParser new];
    parser.emoticonMapper = mapper;
    
    YYTextLinePositionSimpleModifier *mod = [YYTextLinePositionSimpleModifier new];
    mod.fixedLineHeight = 22;
    
    YYTextView *textView = [YYTextView new];
    textView.text = @"Hahahah:smile:, it\'s emoticons::cool::arrow::cry::wink:\n\nYou can input \":\" + \"smile\" + \":\" to display smile emoticon, or you can copy and paste these emoticons.\n";
    textView.font = [UIFont systemFontOfSize:17];
    textView.textParser = parser;
    textView.size = self.view.size;
    textView.linePositionModifier = mod;
    textView.textContainerInset = UIEdgeInsetsMake(10, 10, 10, 10);
    textView.delegate = self;
    if (kiOS7Later) {
        textView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
    }
    textView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);
    textView.scrollIndicatorInsets = textView.contentInset;
    [self.view addSubview:textView];
    self.textView = textView;
    [self.textView becomeFirstResponder];
    
}

#pragma mark - Object Private Function

- (UIImage *)imageWithName:(NSString *)name
{
    NSBundle *bundle = [NSBundle bundleWithPath:[[NSBundle mainBundle] pathForResource:@"EmoticonQQ" ofType:@"bundle"]];
    NSString *path = [bundle pathForScaledResource:name ofType:@"gif"];
    NSData *data = [NSData dataWithContentsOfFile:path];
    YYImage *image = [YYImage imageWithData:data scale:2];
    image.preloadAllAnimatedImageFrames = YES;
    return image;
}

#pragma mark - Action && NOtification

- (void)edit:(UIBarButtonItem *)item
{
    if (_textView.isFirstResponder) {
        [_textView resignFirstResponder];
    }
    else {
        [_textView becomeFirstResponder];
    }
}

#pragma mark - YYTextViewDelegate

- (void)textViewDidBeginEditing:(YYTextView *)textView
{
    UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                                                                                target:self
                                                                                action:@selector(edit:)];
    self.navigationItem.rightBarButtonItem = buttonItem;
}

- (void)textViewDidEndEditing:(YYTextView *)textView
{
    self.navigationItem.rightBarButtonItem = nil;
}

@end

下面看效果展示图

效果展示图

后记

  上面也是YYText里面的demo，写的很好，希望对大家有所帮助，谢谢大家。

风景之美