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93 lines
3.9 KiB
93 lines
3.9 KiB
1 year ago
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//
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// XHMessageBubbleHelper.m
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// MessageDisplayExample
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//
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// Created by 曾 宪华 on 14-6-2.
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// Copyright (c) 2014年 曾宪华 开发团队(http://iyilunba.com ) 本人QQ:543413507 本人QQ群（142557668）. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import "XHMessageBubbleHelper.h"
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@interface XHMessageBubbleHelper () {
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NSCache *_attributedStringCache;
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}
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@end
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@implementation XHMessageBubbleHelper
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+ (instancetype)sharedMessageBubbleHelper {
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static XHMessageBubbleHelper *sharedInstance = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sharedInstance = [[XHMessageBubbleHelper alloc] init];
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});
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return sharedInstance;
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}
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- (id)init {
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self = [super init];
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if (self) {
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_attributedStringCache = [[NSCache alloc] init];
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}
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return self;
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}
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- (void)setDataDetectorsAttributedAttributedString:(NSMutableAttributedString *)attributedString
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atText:(NSString *)text
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withRegularExpression:(NSRegularExpression *)expression
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attributes:(NSDictionary *)attributesDict {
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[expression enumerateMatchesInString:text
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options:0
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range:NSMakeRange(0, [text length])
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usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {
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NSRange matchRange = [result range];
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if (attributesDict) {
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[attributedString addAttributes:attributesDict range:matchRange];
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}
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if ([result resultType] == NSTextCheckingTypeLink) {
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NSURL *url = [result URL];
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[attributedString addAttribute:NSLinkAttributeName value:url range:matchRange];
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} else if ([result resultType] == NSTextCheckingTypePhoneNumber) {
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NSString *phoneNumber = [result phoneNumber];
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[attributedString addAttribute:NSLinkAttributeName value:phoneNumber range:matchRange];
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} else if ([result resultType] == NSTextCheckingTypeDate) {
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// NSDate *date = [result date];
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}
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}];
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}
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- (NSAttributedString *)bubbleAttributtedStringWithText:(NSString *)text {
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if (!text) {
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return [[NSAttributedString alloc] init];
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}
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if ([_attributedStringCache objectForKey:text]) {
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return [_attributedStringCache objectForKey:text];
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}
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NSDictionary *textAttributes = @{NSForegroundColorAttributeName : [UIColor colorWithRed:0.185 green:0.583 blue:1.000 alpha:1.000]};
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NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:text];
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NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypeLink | NSTextCheckingTypePhoneNumber | NSTextCheckingTypeDate
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error:nil];
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[self setDataDetectorsAttributedAttributedString:attributedString atText:text withRegularExpression:detector attributes:textAttributes];
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// NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"/s(13[0-9]|15[0-35-9]|18[0-9]|14[57])[0-9]{8}"
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// options:0
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// error:nil];
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// [self setDataDetectorsAttributedAttributedString:attributedString atText:text withRegularExpression:regex attributes:textAttributes];
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[_attributedStringCache setObject:attributedString forKey:text];
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return attributedString;
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}
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@end
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