iOS 使用 sdlayout 进行tableview cell 的自适应大小
这个问题困扰了我好久，ios还没有很好的入门，比起Android开发总有些懵逼的感觉。
第一步导入：
第二步 保证有两个model 一个是列表的数据源（Android里面是list数据，iOS 里面是NSMutableArray),另一个是单个条目的数据（我给它起名叫 itemData）
softContentDatas 在tableview中 —-从网络获取并转储的
itemData 在cell 中
第三步在tableview 的 heightForRowAtIndexPath中设置这个：
- `/**
- 设置单元格的高度
-
*/
- (CGFloat)tableView:(UITableView )tableView heightForRowAtIndexPath:(NSIndexPath )indexPath {
return [self.tableView cellHeightForIndexPath:indexPath model:_softContentDatas[indexPath.row] keyPath:@”itemData” cellClass:[FMTestTableViewCell class] contentViewWidth: [self cellContentViewWith]];
}`
- (CGFloat)tableView:(UITableView )tableView heightForRowAtIndexPath:(NSIndexPath )indexPath {
`
其中：model指的是cell的数据 –softContentDatas（第几个）
keyPath 是cell里面声明的itemData属性名字
第四步cell的数据set方法中设置底部边距：
-(void) setItemData:(SoftDetail *)itemData{
if (itemData!=nil) {
NSLog(@"hahahah:%@",itemData.imgurl);
//图片
if ([itemData.tag intValue] == 0 ) {
_img.hidden = NO;
_lable1.hidden =YES;
[self.img sd_setImageWithURL:[NSURL URLWithString:itemData.imgurl] placeholderImage:[UIImage imageNamed:@"default_49_11"]];
[self setupAutoHeightWithBottomView:_img bottomMargin:10];
}
if ([itemData.tag intValue]== 1 && itemData.content!= nil) {
_img.hidden = YES;
_lable1.hidden =NO;
_lable1.text = itemData.content;
[self setupAutoHeightWithBottomView:_lable1 bottomMargin:10];
}
}
}下面贴出tableview和cell的代码片段：
//
// FMDetailViewController.m
// Sticker-Eye
//
// Created by eye on 2018/7/17.
// Copyright © 2018年 EyeCloud. All rights reserved.
//
#import "FMDetailViewController.h"
#import "FMTestTableViewCell.h"
#import *softContentDatas;
@property (nonatomic, strong) NSMutableDictionary *heightAtIndexPath;//缓存高度
@end
@implementation FMDetailViewController
#pragma mark -- 懒加载数组
-(NSMutableArray *) softContentDatas{
if (!_softContentDatas) {
_softContentDatas = [NSMutableArray new];
}
return _softContentDatas;
}
- (void)viewDidLoad {
[super viewDidLoad];
[self getNetData];
[self setupTitleBar];
[self initLayout];
// Do any additional setup after loading the view from its nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void)setupTitleBar{
self.navigationController.navigationBar.hidden = NO;
self.navigationItem.title = @"Sticker-Eye";
[self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor colorWithHexString:@"#007bee"],NSFontAttributeName:[UIFont systemFontOfSize:16]}];
// Do any additional setup after loading the view from its nib.
UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 20 , 20)];
[btn setBackgroundImage:[UIImage imageNamed:@"camera_setting_4"] forState:UIControlStateNormal];
// 让按钮内部的所有内容左对齐
btn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
[btn addTarget:self action:@selector(gotoMain) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btn];
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStyleBordered target:self action:@selector(gotoMain)];
}
-(void) initLayout{
self.tableView =[[UITableView alloc] initWithFrame:CGRectMake(0, 64, screenWidth, screenHeight-64-44) style:UITableViewStylePlain];
self.tableView.delegate = self;
self.tableView.dataSource = self;
[self.view addSubview:self.tableView];
}
-(void) gotoMain{
[self dismissViewControllerAnimated:YES completion:nil];
}
/**
* UITableViewDataSource协议中的所有方法,用来对表格视图的样式进行设置(比如说显示的分区个数、每个分区中单元格个数、单元格中显示内容、分区头标题、分区未标题、分区的View)
*/
#pragma mark - UITableViewDataSource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
/**
* 设置每个分区显示的行数
*/
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return _softContentDatas.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
///<1.>设置标识符
static NSString * str1 = @"cell_text";
///<2.>复用机制:如果一个页面显示7个cell，系统则会创建8个cell,当用户向下滑动到第8个cell时，第一个cell进入复用池等待复用。
FMTestTableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:str1];
///<3.>新建cell
if (cell == nil) {
//副标题样式
cell = [[FMTestTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:str1];
// 2
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
// 3点击没有颜色改变
cell.selected = NO;
}
if (_softContentDatas!=nil) {
NSLog(@"hahah:%ld",(long)indexPath.row);
cell.itemData = _softContentDatas[indexPath.row];
}
// cell.data = self.softDatas[indexPath.section];
///<4.>设置单元格上显示的文字信息
// if (indexPath.section == 0) {
// cell.textLabel.text = @"hahah";
// } else {
// cell.textLabel.text = @"gegege";
// }
//
// cell.detailTextLabel.text = @"副标题";
return cell;
}
/**
* 设置单元格的高度
*
*/
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return [self.tableView cellHeightForIndexPath:indexPath model:_softContentDatas[indexPath.row] keyPath:@"itemData" cellClass:[FMTestTableViewCell class] contentViewWidth: [self cellContentViewWith]];
}
//- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
//{
// NSNumber *height = @(cell.frame.size.height);
// [self.heightAtIndexPath setObject:height forKey:indexPath];
//}
-(void)getNetData{
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
// 设置超时时间
[manager.requestSerializer willChangeValueForKey:@"timeoutInterval"];
manager.requestSerializer.timeoutInterval = 15.f;
[manager.requestSerializer didChangeValueForKey:@"timeoutInterval"];
NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
parameters[@"articleId"] =@"1";
[manager POST:@"http://www.godboy.cn/app/getSoftContent.do" parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"成功:%@",responseObject);
if([responseObject[@"status"]intValue] ==200) {
NSMutableArray *data = responseObject[@"data"];
self.softContentDatas =[SoftDetail mj_objectArrayWithKeyValuesArray:data];
[self.tableView reloadData];
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"错误:%@",error);
}];
}
- (CGFloat)cellContentViewWith
{
CGFloat width = [UIScreen mainScreen].bounds.size.width;
// 适配ios7横屏
if ([UIApplication sharedApplication].statusBarOrientation != UIInterfaceOrientationPortrait && [[UIDevice currentDevice].systemVersion floatValue] < 8) {
width = [UIScreen mainScreen].bounds.size.height;
}
return width;
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end cell 的代码
//
// FMTestTableViewCell.m
// Sticker-Eye
//
// Created by eye on 2018/7/20.
// Copyright © 2018年 EyeCloud. All rights reserved.
//
#import "FMTestTableViewCell.h"
#import //
// FMTestTableViewCell.h
// Sticker-Eye
//
// Created by eye on 2018/7/20.
// Copyright © 2018年 EyeCloud. All rights reserved.
//
#import