123 lines
5.4 KiB
Objective-C
123 lines
5.4 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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_content = content;
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CGSize size = [content boundingRectWithSize:CGSizeMake(kRoomMessageMaxWidth, 0)
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options:NSStringDrawingUsesFontLeading | NSStringDrawingUsesLineFragmentOrigin
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context:nil].size;
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YYTextContainer *container = [YYTextContainer containerWithSize:CGSizeMake(size.width, CGFLOAT_MAX)];
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container.maximumNumberOfRows = 0;
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container.truncationType = YYTextTruncationTypeEnd;
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self.textLayout = [YYTextLayout layoutWithContainer:container text:content];
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CGSize textSize = self.textLayout.textBoundingRect.size;
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// CGFloat anotherHeight = [self heightForAttributedStringUsingTextKit:content maxWidth:kRoomMessageMaxWidth].height;
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if ([NSString isEmpty:self.bubbleImageUrl]) {
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self.rowHeight = ceil(textSize.height) + self.cellBottomMargin + self.contentTopMargin + 20;
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} else {
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self.rowHeight = ceil(textSize.height) + self.contentTopMargin + self.contentBottomMargin + self.cellBottomMargin + 20;
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}
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self.rowHeight += 10;
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// if ([self.cellKey isEqualToString:@"ChatMessage"]) {
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// NSLog(@" ----- 11 ----- %@ : %@", [NSValue valueWithCGSize:textSize], [NSValue valueWithCGSize:[self heightForAttributedStringUsingTextKit:content maxWidth:kRoomMessageMaxWidth]]);
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// }
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// self.rowHeight = [self heightForAttributedText:content
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// maxWidth:kRoomMessageMaxWidth];
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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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- (CGSize)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 [layoutManager usedRectForTextContainer:textContainer].size;
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}
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- (CGFloat)heightForAttributedText:(NSAttributedString *)attributedText maxWidth:(CGFloat)maxWidth {
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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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NSInteger index = 0;
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NSMutableAttributedString *mutableAttributedText = [attributedText mutableCopy];
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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 == nil) {
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attachment.content = [[UIView alloc] init]; // 占位内容
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NSValue *v = [self.extraSizeArray xpSafeObjectAtIndex:index];
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if (value) {
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UIView *placeholderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, [v CGSizeValue].width, [v CGSizeValue].height)];
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attachment.content = placeholderView; // 使用占位尺寸
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} else {
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*stop = YES;
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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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