一起养成写作习气！这是我参与「日新方案 4 月更文应战」的第22天，点击查看活动概况。
前言
视图的组成部分为：
- 标题
- 修改区域
- 字符约束：iOS文本长度计算规则：中文占1，英文等能转ascii的占0.5
完成思路：自定义cell
应用场景：用于备注信息修改/街道区域信息的填写。
I 用法
- // 修改具体区域视图模型
// 修改具体区域视图模型
self.viewModel.delivery.tvModel = [QCTTextViewModel new];
// //
self.viewModel.delivery.tvModel.Labtitle = QCTLocal(@"ERP_Detailed_area");
self.viewModel.delivery.tvModel.wordMaxCount = 200;
self.viewModel.delivery.tvModel.titlePlaceholder = QCTLocal(@"ERP_Street_no");
//
//
self.viewModel.delivery.tvModel.placeholderLabfont = kTextFont(14);
self.viewModel.delivery.tvModel.placeholderLabtextColor = rgb(198,198,200);
//
- 创立一个分组
/**
具体区域
*/
ERPChageAddreeVCViewSectionType4Reason,
- 分组个数1
case ERPChageAddreeVCViewSectionType4Reason:{
return 1;
}
break;
- 创立 cell
case ERPChageAddreeVCViewSectionType4Reason:
{
ERPQCTMarkAddress200TableViewCell *cell = [ERPQCTMarkAddress200TableViewCell tableViewCellWithTableView:tableView block:^(id _Nonnull sender) {
} models:self.viewModel.delivery];
return cell;
}
break;
II 完成
思路：自定义cell
2.1 cell完成
头文件
#import <UIKit/UIKit.h>
#import "ERPQCTMarkAddress200TableViewCellView.h"
NS_ASSUME_NONNULL_BEGIN
@interface ERPQCTMarkAddress200TableViewCell : UITableViewCell
@property (nonatomic, strong) id models;
@property (nonatomic, copy) void (^block)(id sender);
+ (instancetype) tableViewCellWithTableView:(UITableView *) tableView block:(void (^)(id sender))block models:(id) models ;
+ (instancetype) tableViewCellWithTableView:(UITableView *) tableView;
@property (nonatomic,weak) ERPQCTMarkAddress200TableViewCellView *cellView;
完成文件
#import "ERPQCTMarkAddress200TableViewCell.h"
@implementation ERPQCTMarkAddress200TableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
-(instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.selectionStyle = UITableViewCellSelectionStyleNone;//去掉选中作用
[self selfInit];
[self createSubView];
[self bindViewModel];
}
return self;
}
- (void)bindViewModel {
}
- (void)selfInit{
self.contentView.backgroundColor = kcellColor;
}
- (void)createSubView {
[self cellView];
}
static NSString *identifier = @"ERPQCTMarkAddress200TableViewCell";//QCTCheckOutViewcellSection4topTableViewCell
+ (instancetype) tableViewCellWithTableView:(UITableView *) tableView{
ERPQCTMarkAddress200TableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if (cell == nil) {// ------并不会履行
cell = [[ERPQCTMarkAddress200TableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
}
return cell;
}
+ (instancetype) tableViewCellWithTableView:(UITableView *) tableView block:(void (^)(id sender))block models:(id) models {
ERPQCTMarkAddress200TableViewCell *cell = [self tableViewCellWithTableView:tableView];
if (block) {
cell.block = block;
}
cell.models = models;
return cell;
}
#pragma mark - ******** model
- (void)setModels:( id)models{
_models =models;
self.cellView.models = models;
}
- (ERPQCTMarkAddress200TableViewCellView *)cellView{
if (nil == _cellView) {
ERPQCTMarkAddress200TableViewCellView *tmpView = [[ERPQCTMarkAddress200TableViewCellView alloc]init];
_cellView = tmpView;
[tmpView setBackgroundColor:kcellColor];
[self.contentView addSubview:_cellView];
__weak __typeof__(self) weakSelf = self;
[_cellView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(weakSelf.contentView).offset(kAdjustRatio(25));
make.right.equalTo(weakSelf.contentView).offset(- kAdjustRatio(25));
make.top.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
make.bottom.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
}];
[_cellView setBlock:^(id _Nonnull sender) {
if(weakSelf.block){
weakSelf.block(sender);
}
}];
}
return _cellView;
}
@end
2.2 cellV的完成
ERPQCTMarkAddress200TableViewCellView.h
#import <UIKit/UIKit.h>
#import "QCTERPOrderDeliveryDto.h"
NS_ASSUME_NONNULL_BEGIN
@interface ERPQCTMarkAddress200TableViewCellView : UIView
@property (nonatomic, strong) QCTERPOrderDeliveryDto* models;
@property (nonatomic, copy) void (^block)(id sender);
//view
@property (nonatomic,weak) UILabel *titleLab;
@property (nonatomic,weak) QCTContentView *contentView;
@property (strong, nonatomic) QCTTextViewModel *tvModel;
@end
NS_ASSUME_NONNULL_END
完成
//
// ERPQCTMarkAddress200TableViewCellView.m
// retail
//
// Created by mac on 2020/2/20.
// Copyright 2020 QCT. All rights reserved.
//
#import "ERPQCTMarkAddress200TableViewCellView.h"
@implementation ERPQCTMarkAddress200TableViewCellView
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
// Drawing code
}
*/
- (QCTTextViewModel *)tvModel{
if (nil == _tvModel) {
QCTTextViewModel *tmpView = [[QCTTextViewModel alloc]init];
_tvModel = tmpView;
}
return _tvModel;
}
//- (QCTERPOrderDeliveryDto *)delivery{
- (void)setModels:(QCTERPOrderDeliveryDto *)models{
_models = models;
if(![NSStringQCTtoll isBlankString:models.address] ){
self.tvModel.content = models.address;
if(models.tvModel){
models.tvModel.content = models.address;
}
}
if(models.tvModel){
// models.tvModel.content = models.address;
self.tvModel = models.tvModel;
if(![NSStringQCTtoll isBlankString: models.tvModel.Labtitle]){
_titleLab.text = models.tvModel.Labtitle;
// QCTLocal(@"ERP_Detailed_area");
}
}
//"ERP_Detailed_area"="具体区域";
[self.contentView updateModel:self.tvModel];
}
- (instancetype)init
{
self = [super init];
if (self) {
[self titleLab];
[self contentView];
// 默认设置
self.tvModel.wordMaxCount = 200;
self.tvModel.titlePlaceholder = QCTLocal(@"store_return_goods_choose_to_fill_in_limited_200_words");
self.tvModel.placeholderLabfont = kTextFont(14);
self.tvModel.placeholderLabtextColor = rgb(204,204,204);
[self.contentView updateModel:self.tvModel];
}
return self;
}
- (UILabel *)titleLab{
if (!_titleLab) {
UILabel *tmp = [[UILabel alloc]init];
_titleLab = tmp;
_titleLab.font = kPingFangFont(15);
_titleLab.textAlignment = NSTextAlignmentLeft;
//"ERP_Detailed_area"="具体区域";
_titleLab.text = QCTLocal(@"store_return_goods_remarks");
_titleLab.textColor = rgb(51,51,51);
[self addSubview:_titleLab];
__weak __typeof__(self) weakSelf = self;
[_titleLab mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(weakSelf).offset(kAdjustRatio(0));//18
make.top.equalTo(weakSelf).offset(kAdjustRatio(10));
}];
}
return _titleLab;
}
- (UIView*)contentView{
if (!_contentView) {
QCTContentView *tmp = [QCTContentView new];
_contentView = tmp;
[self addSubview:_contentView];
__weak __typeof__(self) weakSelf = self;
[_contentView mas_makeConstraints:^(MASConstraintMaker *make) {
make.top.equalTo(weakSelf.titleLab.mas_bottom).offset(kAdjustRatio(0));
make.left.bottom.right.equalTo(weakSelf);
make.height.mas_equalTo(kAdjustRatio(150));
}];
_contentView.block = ^(id _Nonnull sender) {
NSLog(@"具体地址：%@",sender);
if(weakSelf.block){
weakSelf.block(sender);
}
//QCTeditReturnedItemTableViewCellModel
weakSelf.models.address = sender;
};
}
return _contentView;
}
@end
III 处理UITextView的占位符
监听文本的变化
- (void)textViewDidChange:(UITextView *)textView{
if (textView.text.length == 0) {
self.placeholderLab.hidden = NO;
}else{
self.placeholderLab.hidden = YES;
}
}
监听删去键
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
if (![text isEqualToString:@""]){
_placeholderLab.hidden = YES;
}
else if (([text isEqualToString:@""] && range.location == 0 && range.length == 1) || ([text isEqualToString:@"\n"] && [text isEqualToString:@""] && range.location == 0 && range.length == 1)){
_placeholderLab.hidden = NO;
}
else if ([text isEqualToString:@"\n"]){
[textView endEditing:YES];
return NO;
}
return YES;
}
see also
公众号：iOS逆向
