126 lines
5.8 KiB
Objective-C
126 lines
5.8 KiB
Objective-C
//
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// YMMessageInfoModel.m
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// YUMI
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//
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// Created by YUMI on 2022/10/21.
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//
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#import "XPMessageInfoModel.h"
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#import "XPRoomMessageConstant.h"
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@implementation XPMessageInfoModel
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- (instancetype)init {
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if ([super init]) {
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self.contentLeftMargin = 12;
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self.contentRightMargin = 0;
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self.contentTopMargin = 10;
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self.contentBottomMargin = 10;
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self.cellBottomMargin = 6;
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self.isUpdateContentFrame = NO;
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self.isHiddenBubble = NO;
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}
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return self;
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}
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- (void)setContent:(NSAttributedString *)content {
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self.rowHeight = [self heightForAttributedText:content
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maxWidth:kRoomMessageMaxWidth];
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_content = content;
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// CGFloat width = isMSRTL() ? 10 : 0;
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////// width = self.vipIcon.length > 0 ? width + 15 : width;
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// CGSize maxSize = CGSizeMake(kRoomMessageMaxWidth - self.contentLeftMargin - self.contentRightMargin - 12, MAXFLOAT);
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// YYTextContainer *container = [YYTextContainer containerWithSize:maxSize];
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// container.maximumNumberOfRows = 0;
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// YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:self.content];
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// CGFloat rowHeight = layout.textBoundingSize.height + self.contentTopMargin + self.contentBottomMargin + self.cellBottomMargin;
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// self.rowHeight = rowHeight + width ;
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}
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- (CGFloat)heightForAttributedStringUsingTextKit:(NSAttributedString *)attributedString
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maxWidth:(CGFloat)maxWidth {
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NSTextStorage *textStorage = [[NSTextStorage alloc] initWithAttributedString:attributedString];
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NSTextContainer *textContainer = [[NSTextContainer alloc] initWithSize:CGSizeMake(maxWidth, CGFLOAT_MAX)];
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NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
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[layoutManager addTextContainer:textContainer];
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[textStorage addLayoutManager:layoutManager];
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// 让布局管理器计算文本高度
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[layoutManager glyphRangeForTextContainer:textContainer];
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return ceil([layoutManager usedRectForTextContainer:textContainer].size.height); // 向上取整
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}
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- (CGFloat)heightForAttributedText:(NSAttributedString *)attributedText maxWidth:(CGFloat)maxWidth {
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CGSize containerSize = CGSizeMake(maxWidth, CGFLOAT_MAX);
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YYTextContainer *_container = [YYTextContainer containerWithSize:containerSize];
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_container.maximumNumberOfRows = 0; // 不限制行数
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YYTextLayout *_layout = [YYTextLayout layoutWithContainer:_container text:attributedText];
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CGFloat textHeight = _layout.textBoundingSize.height;
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return textHeight + self.contentTopMargin + self.contentBottomMargin + self.cellBottomMargin;
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// return [attributedText.string boundingRectWithSize:CGSizeMake(maxWidth, CGFLOAT_MAX) options:NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:kRoomMessageDefalutFont]} context:nil].size.height;
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// 创建一个 YYTextContainer
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YYTextContainer *container = [YYTextContainer new];
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container.size = CGSizeMake(maxWidth, CGFLOAT_MAX); // 设置宽度，支持无限高度
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container.maximumNumberOfRows = 0; // 允许多行
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// 遍历富文本，设置未加载图片的占位尺寸
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// 确认是否 “@用户名” 会影响计算结果
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NSMutableAttributedString *mutableAttributedText = [[NSMutableAttributedString alloc] initWithAttributedString:attributedText.copy];
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if (isMSRTL()) {
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NSInteger index = 0;
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[mutableAttributedText enumerateAttribute:YYTextAttachmentAttributeName
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inRange:NSMakeRange(0, mutableAttributedText.length)
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options:0
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usingBlock:^(id value, NSRange range, BOOL *stop) {
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if ([value isKindOfClass:[YYTextAttachment class]]) {
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// TODO: 把图片变为字符串来占位， 观察结果是第二行字符长度少于前缀图片，则会高度减少
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YYTextAttachment *attachment = (YYTextAttachment *)value;
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// NSLog(@" ---00--- : %@", attachment.content);
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if (attachment.content && [attachment.content isKindOfClass:[NetImageView class]]) {
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NSValue *v = [self.extraSizeArray xpSafeObjectAtIndex:index];
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NSString *tempString = @"";
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if (value) {
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CGSize size = [v CGSizeValue];
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// UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, size.width, size.height)];
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// attachment.content = view;
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if (size.width <= 20) {
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tempString = @"ABCD";
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} else if (size.width <=40) {
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tempString = @"ABCDEF";
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} else {
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tempString = @"ABCDEFGH";
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}
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}
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NSAttributedString *replaceString = [[NSAttributedString alloc] initWithString:tempString
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attributes:@{
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NSFontAttributeName: kFontRegular(kRoomMessageDefalutFont),
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NSForegroundColorAttributeName: [UIColor whiteColor]
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}];
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[mutableAttributedText replaceCharactersInRange:range withAttributedString:replaceString];
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}
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}
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}];
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}
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// 通过 YYTextLayout 创建布局
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YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:mutableAttributedText];
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self.textWidth = ceil(layout.textBoundingSize.width);
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// 返回布局的文本高度
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return ceil(layout.textBoundingSize.height) + self.contentTopMargin + self.contentBottomMargin + self.cellBottomMargin; // 向上取整，避免内容裁切
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}
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@end
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