版本记录
| 版本号 | 时间 |
|---|---|
| V1.0 | 2017.06.11 |
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）
9.YYText使用篇（九）
下面给出的实例就是Text-Binding和copy-paste展示。
一、YYText示例之text-binding
下面看示例代码
#import "YYTextBindingExample.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 YYTextExampleEmailBindingParser :NSObject <YYTextParser>
@property (nonatomic, strong) NSRegularExpression *regex;
@end
@implementation YYTextExampleEmailBindingParser
#pragma mark - Override Base Function
- (instancetype)init
{
self = [super init];
NSString *pattern = @"[-_a-zA-Z@\\.]+[ ,\\n]";
self.regex = [[NSRegularExpression alloc] initWithPattern:pattern options:kNilOptions error:nil];
return self;
}
#pragma mark - YYTextParser
- (BOOL)parseText:(NSMutableAttributedString *)text selectedRange:(NSRangePointer)range
{
__block BOOL changed = NO;
[_regex enumerateMatchesInString:text.string options:NSMatchingWithoutAnchoringBounds range:text.yy_rangeOfAll usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {
if (!result) return;
NSRange range = result.range;
if (range.location == NSNotFound || range.length < 1) return;
if ([text attribute:YYTextBindingAttributeName atIndex:range.location effectiveRange:NULL]) return;
NSRange bindlingRange = NSMakeRange(range.location, range.length - 1);
YYTextBinding *binding = [YYTextBinding bindingWithDeleteConfirm:YES];
[text yy_setTextBinding:binding range:bindlingRange]; /// Text binding
[text yy_setColor:[UIColor colorWithRed:0.000 green:0.519 blue:1.000 alpha:1.000] range:bindlingRange];
changed = YES;
}];
return changed;
}
@end
@interface YYTextBindingExample () <YYTextViewDelegate>
@property (nonatomic, strong) YYTextView *textView;
@property (nonatomic, assign) BOOL isInEdit;
@end
@implementation YYTextBindingExample
#pragma mark - Override Base Function
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
self.automaticallyAdjustsScrollViewInsets = NO;
}
NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"sjobs@apple.com, apple@apple.com, banana@banana.com, pear@pear.com "];
text.yy_font = [UIFont systemFontOfSize:17];
text.yy_lineSpacing = 5;
text.yy_color = [UIColor blackColor];
YYTextView *textView = [YYTextView new];
textView.attributedText = text;
textView.textParser = [YYTextExampleEmailBindingParser new];
textView.size = self.view.size;
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 - Action && Notification
- (void)edit:(UIBarButtonItem *)item
{
if (_textView.isFirstResponder) {
[_textView resignFirstResponder];
}
else {
[_textView becomeFirstResponder];
}
}
#pragma mark - YYTextViewDelegate
- (void)textViewDidChange:(YYTextView *)textView
{
if (textView.text.length == 0) {
textView.textColor = [UIColor blackColor];
}
}
- (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
下面看效果示意图
效果示意图
二、YYText示例之copy-paste
下面看示例代码
#import "YYTextCopyPasteExample.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 YYTextCopyPasteExample ()<YYTextViewDelegate>
@property (nonatomic, assign) YYTextView *textView;
@end
@implementation YYTextCopyPasteExample
#pragma mark - Override Base Function
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
self.automaticallyAdjustsScrollViewInsets = NO;
}
NSString *text = @"You can copy image from browser or photo album and paste it to here. It support animated GIF and APNG. \n\nYou can also copy attributed string from other YYTextView.\n";
YYTextSimpleMarkdownParser *parser = [YYTextSimpleMarkdownParser new];
[parser setColorWithDarkTheme];
YYTextView *textView = [YYTextView new];
textView.text = text;
textView.font = [UIFont systemFontOfSize:17];
textView.size = self.view.size;
textView.textContainerInset = UIEdgeInsetsMake(10, 10, 10, 10);
textView.delegate = self;
textView.allowsPasteImage = YES; /// Pasts image
textView.allowsPasteAttributedString = YES; /// Paste attributed string
if (kiOS7Later) {
textView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
}
textView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);
textView.scrollIndicatorInsets = textView.contentInset;
[self.view addSubview:textView];
self.textView = textView;
textView.selectedRange = NSMakeRange(text.length, 0);
[textView becomeFirstResponder];
}
#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
下面看示意图
示意图
上面可以看到：这里可以从浏览器和相册中粘贴图片，支持gif和APNG格式的图片。
后记
未完，待续~~~
山水
