erpsuiteios/Redant Drivers/Apex And Drivers/Detail/Model/RADetailMultLineModel.m

//
//  RADetailMultLineModel.m
//  Apex And Drivers
//
//  Created by Jack on 2018/6/2.
//  Copyright © 2018年 USAI. All rights reserved.
//

#import "RADetailMultLineModel.h"

static const CGFloat SpaceWidth = 10.0f;
static const CGFloat SpaceHeight = 12.0f;

@implementation RADetailMultLineModel {
    CGFloat _height;
}

- (void)setValue:(NSString *)value {
    _value = value;
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        [self caculateValueHeight];
    });
}

- (CGFloat)height {
    if (_height <= 0) {
        [self caculateValueHeight];
    }
    return _height;
}

- (void)caculateValueHeight {
    if (self.value.length == 0) {
        return;
    }
    CGFloat w = self.width;
    if (w <= 0) {
        w = CGRectGetWidth([UIScreen mainScreen].bounds);
    }
    
    CGFloat h = [self.value boundingRectWithSize:CGSizeMake(w - SpaceWidth, FLT_MAX)
                                         options:(NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading)
                                      attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15.0f]}
                                         context:nil].size.height;
    _height = h + SpaceHeight;
    if (_height < 90) {
        _height = 90.0f;
    }
}

@end