#import "ViewController.h"

#import "MyTableViewCell.h"

static NSString *cellIdentifier = @"mycell";

@interface ViewController () <UITableViewDelegate, UITableViewDataSource>

@property (strong, nonatomic) NSArray *listArr;

@property (strong, nonatomic) MyTableViewCell *cell;

@end

@implementation ViewController

@synthesize listArr;

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    [self.tableView registerNib:[UINib nibWithNibName:@"MyTableViewCell" bundle:[NSBundle mainBundle]] forCellReuseIdentifier:cellIdentifier];

    self.tableView.estimatedRowHeight = ;//很重要保障滑动流畅性

    self.cell = [self.tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    self.listArr = @[@"Do any additional setup after loading the view, typically from a nib.",

                     @"test",

                     @"UITableViewCell 高度自适应一直是我们做动态Cell高度时遇到的最烦躁的问题,Cell动态高度计算可以去看看 sunny 的这篇文章介绍,今天主要和大家分享下我在使用 systemLayoutSizeFittingSize 系统自带方法计算高度的一些心得!"];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return ;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    return listArr.count;

}

- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath {

    MyTableViewCell *cell = self.cell;

    cell.myLabel.text = listArr[indexPath.row];

    cell.contentView.translatesAutoresizingMaskIntoConstraints = NO;

    CGFloat fittingHeight = [cell.contentView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;

    return fittingHeight;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    self.cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    if (self.cell == nil) {

        UINib *nib = [UINib nibWithNibName:@"MyTableViewCell" bundle:nil];

        [tableView registerNib:nib forCellReuseIdentifier:cellIdentifier];

        self.cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    }

    self.cell.myLabel.backgroundColor = [UIColor blueColor];

    self.cell.myLabel.textColor = [UIColor whiteColor];

    self.cell.myLabel.text = [listArr objectAtIndex:indexPath.row];

    return self.cell;

}

@end