iOS中Masonry和UITableView+FDTemplateLayoutCell结合使用

ios中masonry和uitableview+fdtemplatelayoutcell结合使用。masonry的github链接:https://github.com/snapkit/masonry
uitableview-fdtemplatelayoutcell github:https://github.com/forkingdog/uitableview-fdtemplatelayoutcell
注意：图片及json数据来自uitableview-fdtemplatelayoutcell的demo里面的。
具体代码如下：

一：控制器中创建视图，处理数据

//
//  viewcontroller.m
//  bjttest
//
//  created by yunlong on 17/4/28.
//  copyright ? 2017年 yunlong. all rights reserved.
//
#import "viewcontroller.h"
#import "uitableview+fdtemplatelayoutcell.h"
#import "fdfeedentity.h"
#import "fdfeedcell.h"

@interface viewcontroller ()
@property(nonatomic,strong) uitableview *mytableview;
//数据源
@property (nonatomic, strong) nsmutablearray *feedentitysections;
@end

@implementation viewcontroller

- (void)viewdidload {
    [super viewdidload];
    self.mytableview = [[uitableview alloc] initwithframe:self.view.frame];
    [self.view addsubview:self.mytableview];

    self.mytableview.datasource = self;
    self.mytableview.delegate   = self;
    //注册cell
    [self.mytableview registerclass:[fdfeedcell class] forcellreuseidentifier:@"fdfeedcell"];

    self.mytableview.estimatedrowheight = 200;//预算行高
    self.mytableview.fd_debuglogenabled = yes;//开启log打印高度
    [self buildtestdatathen:^{
     //刷新数据
        [self.mytableview reloaddata];
    }];
}
#pragma mark - 处理数据
- (void)buildtestdatathen:(void (^)(void))then{
    // simulate an async request
    dispatch_async(dispatch_get_global_queue(dispatch_queue_priority_default, 0), ^{

        // data from `data.json`
        nsstring *datafilepath = [[nsbundle mainbundle] pathforresource:@"data" oftype:@"json"];
        nsdata *data = [nsdata datawithcontentsoffile:datafilepath];
        nsdictionary *rootdict = [nsjsonserialization jsonobjectwithdata:data options:nsjsonreadingallowfragments error:nil];
        nsarray *feeddicts = rootdict[@"feed"];

        // convert to `fdfeedentity`
        nsmutablearray *entities = @[].mutablecopy;
        [feeddicts enumerateobjectsusingblock:^(id obj, nsuinteger idx, bool *stop) {
            [entities addobject:[[fdfeedentity alloc] initwithdictionary:obj]];
        }];
        self.feedentitysections = entities;

        // callback
        dispatch_async(dispatch_get_main_queue(), ^{
            !then ?: then();
        });
    });
}

-(uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath{
    fdfeedcell *cell = [tableview dequeuereusablecellwithidentifier:@"fdfeedcell" forindexpath:indexpath];
    [self configurecell:cell atindexpath:indexpath];
    return cell;
}

- (void)configurecell:(fdfeedcell *)cell atindexpath:(nsindexpath *)indexpath{
    cell.fd_enforceframelayout = no; // enable to use "-sizethatfits:"
    if (indexpath.row % 2 == 0) {
        cell.accessorytype = uitableviewcellaccessorydisclosureindicator;
    } else {
        cell.accessorytype = uitableviewcellaccessorycheckmark;
    }
    cell.entity = self.feedentitysections[indexpath.row];
}

-(cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath{
    //高度计算并且缓存
    return [tableview fd_heightforcellwithidentifier:@"fdfeedcell" cachebyindexpath:indexpath configuration:^(fdfeedcell *cell) {
        [self configurecell:cell atindexpath:indexpath];
    }];
}

-(nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section{
    return self.feedentitysections.count;
}

@end

二：自定义cell及代码的实现
(1).h文件

#import 

@class fdfeedentity;
@interface fdfeedcell : uitableviewcell
@property (nonatomic, strong) fdfeedentity *entity;
@end

(2).m文件

#import "fdfeedcell.h"
#import "fdfeedentity.h"
#import 
#define margin 4
#define padding 10
@interface fdfeedcell ()
@property (nonatomic, strong)  uilabel *titlelabel;
@property (nonatomic, strong)  uilabel *contentlabel;
@property (nonatomic, strong)  uiimageview *mainimageview;
@property (nonatomic, strong)  uilabel *usernamelabel;
@property (nonatomic, strong)  uilabel *timelabel;

@end

@implementation fdfeedcell

- (instancetype)initwithstyle:(uitableviewcellstyle)style reuseidentifier:(nsstring *)reuseidentifier{
    if (self == [super initwithstyle:style reuseidentifier:reuseidentifier]) {
        [self setautolayout];
    }
    return self;
}
#pragma mark - 布局
- (void)setautolayout{
    _titlelabel                    = [[uilabel alloc] init];
    _titlelabel.numberoflines = 0;
    //_titlelabel.backgroundcolor    = [uicolor redcolor];
    [self.contentview addsubview:_titlelabel];

    _contentlabel                  = [[uilabel alloc] init];
    _contentlabel.numberoflines    = 0;
    _contentlabel.font             = [uifont systemfontofsize:14];
    _contentlabel.textcolor        = [uicolor graycolor];
    //_contentlabel.backgroundcolor  = [uicolor purplecolor];
    [self.contentview addsubview:_contentlabel];

    _mainimageview                 = [[uiimageview alloc] init];
    _mainimageview.contentmode     = uiviewcontentmodescaleaspectfill;
    _mainimageview.clipstobounds   = yes;
    //_mainimageview.backgroundcolor = [uicolor orangecolor];
    [self.contentview addsubview:_mainimageview];

    _usernamelabel                 = [[uilabel alloc] init];
    //_usernamelabel.backgroundcolor = [uicolor greencolor];
    _usernamelabel.textcolor       = [uicolor orangecolor];
    _usernamelabel.font            = [uifont systemfontofsize:12];
    [self.contentview addsubview:_usernamelabel];

    _timelabel                     = [[uilabel alloc] init];
    _timelabel.textcolor           = [uicolor bluecolor];
    _timelabel.font                = [uifont systemfontofsize:12];
    //_timelabel.backgroundcolor     = [uicolor bluecolor];
    [self.contentview addsubview:_timelabel];

    [_titlelabel mas_makeconstraints:^(masconstraintmaker *make) {
        make.top.and.left.mas_equalto(self.contentview).offset(padding);
        make.right.mas_equalto(self.contentview.mas_right).offset(-padding);
    }];

    [_contentlabel mas_makeconstraints:^(masconstraintmaker *make) {
        make.left.and.right.mas_equalto(self.titlelabel);
        make.top.mas_equalto(self.titlelabel.mas_bottom).offset(margin);
    }];

    [_mainimageview mas_makeconstraints:^(masconstraintmaker *make) {
        make.left.equalto(self.titlelabel.mas_left);
        make.top.mas_equalto(self.contentlabel.mas_bottom).offset(margin);
    }];

    [_usernamelabel mas_makeconstraints:^(masconstraintmaker *make) {
        make.left.equalto(self.titlelabel.mas_left);
        make.top.mas_equalto(self.mainimageview.mas_bottom).offset(margin);
        make.bottom.mas_equalto(self.contentview.mas_bottom).offset(-margin);
    }];

    [_timelabel mas_makeconstraints:^(masconstraintmaker *make) {
        make.top.and.bottom.mas_equalto(self.usernamelabel);
        make.right.mas_equalto(self.titlelabel.mas_right);
    }];
}
#pragma mark - 赋值
- (void)setentity:(fdfeedentity *)entity{
    _entity = entity;
    self.titlelabel.text     = entity.title;
    self.contentlabel.text   = entity.content;
    self.mainimageview.image = entity.imagename.length > 0 ? [uiimage imagenamed:entity.imagename] : nil;
    self.usernamelabel.text  = entity.username;
    self.timelabel.text      = entity.time;
}

三：model就是用uitableview-fdtemplatelayoutcell的demo里面的model
(1).h文件

#import 

@interface fdfeedentity : nsobject

- (instancetype)initwithdictionary:(nsdictionary *)dictionary;

@property (nonatomic, copy) nsstring *identifier;
@property (nonatomic, copy) nsstring *title;
@property (nonatomic, copy) nsstring *content;
@property (nonatomic, copy) nsstring *username;
@property (nonatomic, copy) nsstring *time;
@property (nonatomic, copy) nsstring *imagename;

@end

(1).m文件

#import "fdfeedentity.h"

@implementation fdfeedentity

- (instancetype)initwithdictionary:(nsdictionary *)dictionary
{
    self = super.init;
    if (self) {
        _identifier = [self uniqueidentifier];
        _title = dictionary[@"title"];
        _content = dictionary[@"content"];
        _username = dictionary[@"username"];
        _time = dictionary[@"time"];
        _imagename = dictionary[@"imagename"];
    }
    return self;
}

- (nsstring *)uniqueidentifier
{
    static nsinteger counter = 0;
    return [nsstring stringwithformat:@"unique-id-%@", @(counter++)];
}

@end

五：效果图