UITableView中cell里的UITextField不被弹出键盘挡住

 

 本人视频教程系类   

 

效果如下：

源码：

EditCell.h 与 EditCell.m

////  EditCell.h//  Cell////  Created by YouXianMing on 14/12/18.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import 
     
      @interface EditCell : UITableViewCell@property (nonatomic, strong) UITextField *field;@end
     

////  EditCell.m//  Cell////  Created by YouXianMing on 14/12/18.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "EditCell.h"@implementation EditCell- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];    if (self) {        UIView *line         = [[UIView alloc] initWithFrame:CGRectMake(0, 43, 320, 1)];        line.backgroundColor = [UIColor colorWithRed:0.886 green:0.918 blue:0.933 alpha:1];        [self addSubview:line];                _field               = [[UITextField alloc] initWithFrame:CGRectMake(20, 2, 280, 42)];        _field.textColor     = [UIColor grayColor];        _field.font          = [UIFont fontWithName:@"HelveticaNeue-Thin" size:18];        [self addSubview:_field];    }        return self;}@end

ViewController.m

////  ViewController.m//  Cell////  Created by YouXianMing on 14/12/18.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "ViewController.h"#import "EditCell.h"static NSInteger number = 8;@interface ViewController ()
     
      @property (nonatomic, strong) UITableView    *tableView;@property (nonatomic, weak)   UITextField    *tmpTextField; // 获取当前编辑的TextField@property (nonatomic, strong) NSMutableArray *strsArray;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        // 数据源(初始化)    _strsArray = [NSMutableArray array];    for (int i = 0; i < number; i++) {        [_strsArray addObject:@""];    }        // 初始化tableView    _tableView = [[UITableView alloc] initWithFrame:self.view.bounds                                              style:UITableViewStylePlain];    _tableView.backgroundColor = [UIColor colorWithRed:0.949 green:0.957 blue:0.961 alpha:1];    [self.view addSubview:_tableView];        _tableView.delegate       = self;    _tableView.dataSource     = self;    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;    [_tableView registerClass:[EditCell class] forCellReuseIdentifier:@"YouXianMing"];    }- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {    return number;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {    EditCell *cell      = [tableView dequeueReusableCellWithIdentifier:@"YouXianMing"];    cell.field.delegate = self;    cell.field.text     = _strsArray[indexPath.row];    cell.selectionStyle = UITableViewCellSelectionStyleNone;        return cell;}#pragma mark - UITextField代理- (void)textFieldDidBeginEditing:(UITextField *)textField {        // 获取到临时的textField并存储起来    self.tmpTextField = textField;        // 获取到父类cell    EditCell *cell    = (EditCell *)[self.tmpTextField superview];        // 获取到indexPath    NSIndexPath *path = [self.tableView indexPathForCell:cell];        // 执行动画(移动到输入的位置)    [self.tableView setContentOffset:CGPointMake(0, (path.row)*44) animated:YES];}- (void)textFieldDidEndEditing:(UITextField *)textField {    // 获取到临时的textField并存储起来    self.tmpTextField = textField;        // 获取到父类cell    EditCell *cell    = (EditCell *)[self.tmpTextField superview];        // 获取到indexPath    NSIndexPath *path = [self.tableView indexPathForCell:cell];        // 存储到数据源中    [_strsArray replaceObjectAtIndex:path.row                          withObject:(textField.text == nil ? @"" : textField.text)];        // 打印信息    NSLog(@"%@", _strsArray);}- (BOOL)textFieldShouldReturn:(UITextField *)sender {        // 执行动画(恢复到原始位置)    [self.tableView setContentOffset:CGPointMake(0, 0) animated:YES];        // 交出第一响应者    [sender resignFirstResponder];        return YES;}@end
     

以下是需要注意的地方：

通过父视图获取到了cell，然后根据cell获取indexPath值，然后可以做事情了

核心代码是根据第几个cell来执行位移的动画，这个值是可以调整的。