194 lines
6.3 KiB
Objective-C
194 lines
6.3 KiB
Objective-C
//
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// MessageCell.m
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// xplan-ios
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//
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// Created by zu on 2021/11/28.
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//
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#import "MessageCell.h"
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#import "NetImageView.h"
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#import "ThemeColor.h"
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#import "XPMacro.h"
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#import <Masonry/Masonry.h>
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@interface MessageCell()
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/**
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左侧头像（私聊对象）
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*/
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@property (nonatomic, strong) NetImageView * leftAvatar;
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/**
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右侧头像（自己）
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*/
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@property (nonatomic, strong) NetImageView * rightAvatar;
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/**
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消息背景
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*/
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@property (nonatomic, strong) UIView * messageBackground;
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@property (nonatomic, strong) MASConstraint * messageBackgroundLeft;
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@property (nonatomic, strong) MASConstraint * messageBackgroundRight;
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/**
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消息文本
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*/
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@property (nonatomic, strong) UILabel * messageText;
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@end
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@implementation MessageCell
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/**
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当前仅支持 Text Message。
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扩展方向：
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新增Measure（Layout）工具类，按照 NIMMessageType 进行 measure 和生成对应的 Message content view。
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*/
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+ (CGFloat)measureHeight:(NIMMessage *)message {
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CGFloat minHeight = 45 + 15 * 2;
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if (!message) {
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return minHeight;
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}
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NSString * messageText = message.text;
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if (!messageText || (message.messageType != NIMMessageTypeTip && message.messageType != NIMMessageTypeText)) {
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messageText = @"未知消息类型";
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}
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CGSize dstRect = CGSizeMake(KScreenWidth - 15 * 2 * 2 - 45 * 2 - 10 * 2, MAXFLOAT);
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CGFloat msgHeight = [messageText boundingRectWithSize:dstRect options:NSStringDrawingUsesLineFragmentOrigin attributes:[self messageTextAttibutes] context:nil].size.height;
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CGFloat height = msgHeight + 5 + 15 * 2;
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return MAX(minHeight, height);
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}
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+ (NSDictionary<NSAttributedStringKey, id> *)messageTextAttibutes {
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UIFont *font = [UIFont systemFontOfSize:13.f];
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NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
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[paragraphStyle setLineSpacing:2.5];
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return @{
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NSFontAttributeName:font,
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NSParagraphStyleAttributeName: paragraphStyle
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};
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}
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- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
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self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
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if (self) {
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self.selectionStyle = UITableViewCellSelectionStyleNone;
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[self initViews];
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[self initLayout];
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}
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return self;
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}
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- (void)initViews {
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self.backgroundColor = UIColor.clearColor;
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self.leftAvatar.backgroundColor = UIColor.redColor;
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self.rightAvatar.backgroundColor = UIColor.blueColor;
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[self.contentView addSubview:self.leftAvatar];
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[self.contentView addSubview:self.rightAvatar];
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[self.messageBackground addSubview:self.messageText];
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[self.contentView addSubview:self.messageBackground];
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}
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- (void)initLayout {
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[self.leftAvatar mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.top.mas_equalTo(self).offset(15);
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make.width.height.mas_equalTo(45);
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}];
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[self.rightAvatar mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.mas_equalTo(self).offset(15);
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make.right.mas_equalTo(self).offset(-15);
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make.width.height.mas_equalTo(45);
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}];
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[self.messageBackground mas_makeConstraints:^(MASConstraintMaker *make) {
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self.messageBackgroundLeft = make.left.mas_equalTo(self.leftAvatar.mas_right).offset(15);
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self.messageBackgroundRight = make.right.mas_equalTo(self.rightAvatar.mas_left).offset(-15);
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make.top.mas_equalTo(self).offset(20);
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}];
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[self.messageText mas_makeConstraints:^(MASConstraintMaker *make) {
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make.edges.equalTo(self.messageBackground).with.insets(UIEdgeInsetsMake(10, 10, 10, 10));
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}];
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}
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- (void)renderWithMessage:(NIMMessage *)message {
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NSString * avatarUrl = [[NIMSDK sharedSDK].userManager userInfo:message.from].userInfo.avatarUrl;
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avatarUrl = [avatarUrl stringByReplacingOccurrencesOfString:@"https" withString:@"http"];
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BOOL isSelf = [[NIMSDK sharedSDK].loginManager.currentAccount isEqualToString:message.from];
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if (isSelf) {
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self.leftAvatar.hidden = YES;
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self.rightAvatar.hidden = NO;
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[self.messageBackgroundLeft uninstall];
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[self.messageBackgroundRight install];
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self.rightAvatar.imageUrl = avatarUrl;
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} else {
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self.leftAvatar.hidden = NO;
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self.rightAvatar.hidden = YES;
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[self.messageBackgroundLeft install];
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[self.messageBackgroundRight uninstall];
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self.leftAvatar.imageUrl = avatarUrl;
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}
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NSString * messageText = message.text;
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if (!messageText || (message.messageType != NIMMessageTypeTip && message.messageType != NIMMessageTypeText)) {
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messageText = @"未知消息类型";
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}
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_messageText.attributedText = [[NSAttributedString alloc] initWithString:messageText attributes:[MessageCell messageTextAttibutes]];
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}
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- (NetImageView *)leftAvatar {
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if (!_leftAvatar) {
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NetImageConfig * config = [[NetImageConfig alloc] init];
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config.placeHolder = [UIImageConstant defaultAvatarPlaceholder];
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config.radius = MAXFLOAT;
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_leftAvatar = [[NetImageView alloc] initWithConfig:config];
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_leftAvatar.layer.masksToBounds = YES;
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_leftAvatar.layer.cornerRadius = 45.f / 2;
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_leftAvatar.hidden = YES;
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}
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return _leftAvatar;
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}
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- (NetImageView *)rightAvatar {
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if (!_rightAvatar) {
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NetImageConfig * config = [[NetImageConfig alloc] init];
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config.placeHolder = [UIImageConstant defaultAvatarPlaceholder];
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config.radius = MAXFLOAT;
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_rightAvatar = [[NetImageView alloc] initWithConfig:config];
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_rightAvatar.layer.masksToBounds = YES;
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_rightAvatar.layer.cornerRadius = 45.f / 2;
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_rightAvatar.hidden = YES;
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}
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return _rightAvatar;
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}
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- (UIView *)messageBackground {
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if (!_messageBackground) {
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_messageBackground = [[UIView alloc]init];
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_messageBackground.backgroundColor = ThemeColor.appCellBackgroundColor;
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_messageBackground.layer.masksToBounds = YES;
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_messageBackground.layer.cornerRadius = 8.f;
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}
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return _messageBackground;
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}
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- (UILabel *)messageText {
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if (!_messageText) {
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_messageText = [[UILabel alloc]initWithFrame:CGRectZero];
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_messageText.preferredMaxLayoutWidth = KScreenWidth - 15 * 2 * 2 - 45 * 2 - 10 * 2;
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_messageText.textColor = ThemeColor.mainTextColor;
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_messageText.numberOfLines = 0;
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}
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return _messageText;
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}
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@end
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