本次讲解如何在移动端做Tableview的全选，返选，删除的功能；利用Tableview官方自带的方法，直观简洁好使。
一：功能
1.默认右上角“编辑”
2.点击编辑，显示下方View样式“全选/返选”，“删除”功能，并编辑文本变为“取消”，点击取消就退出了。
3.列表的全选/返选/取消某个列表的选择等
二：思路分析
1.布局样式/代理/点击按钮方法实现
2.定义数据层。获取到总数据列表，选择了某个列表就赋值给新的待删除确认列表，一个做tableview编辑的判断，判断是否可以选择，判断列表是否选中
3.按钮的点击事件（编辑，全选，确认，删除）
4.获取到服务器数据列表list，赋值给待选中的数组
5.进行与服务器的数组比较，列表的id是否是数组中的某个值，返选时需要。
6.功能完善，点击确认删除，成功…
注意：
//此行不能加，否则列表点击不会有选择的效果
- wifiCell.selectionStyle = UITableViewCellSelectionStyleNone;
//判断列表有没有选中，没有选中则为false
- self.wfView.wfTableView.isEditing == false
三：代码
1.样式h
#import <UIKit/UIKit.h>
#import "BaseView.h"
@protocol WifiViewDelegate <NSObject>
-(void)onTapCilck;//点击全选/返选
-(void)onTapCancel;//确认删除
@end
@interface WifiView : BaseView
@property(weak,nonatomic) id<WifiViewDelegate> delegate;
@property(nonatomic,strong) UIView *bottomView;//下方按钮的view
@property(nonatomic,strong) UITableView *wfTableView;//列表
@property(nonatomic,strong) UILabel * checkAll;//左按钮全选文字
@property(nonatomic, strong) UIButton *checkAll_Btn;//左按钮
@property(nonatomic, strong) UILabel *canCelb;//右按钮删除文字
@property(nonatomic, strong) UIButton *canCel_Btn;//右按钮
@end2.m逻辑层
//右边的按钮
-(void)customNavigationRightItem{
_item = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(onSevleClick)];
_item.tintColor = [UIColor whiteColor];
self.navigationItem.rightBarButtonItem = _item;
}-(void)onSevleClick{
if(self.wfView.wfTableView.isEditing == false){
_item.title = @"Cancel";
[self functionSelect:NO];
self.wfView.bottomView.hidden = NO;
self.wfView.checkAll_Btn.hidden = NO;
self.wfView.canCel_Btn.hidden = NO;
}else{
_item.title = @"Edit";
[self functionSelect:YES];
self.wfView.bottomView.hidden = YES;
self.wfView.checkAll_Btn.hidden = YES;
self.wfView.canCel_Btn.hidden = YES;
}
}-(void)functionSelect:(BOOL)tile{
if(tile){
_isInsertEdit = tile;
for (int i = 0; i< _houList.count; i++) {
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
[self.wfView.wfTableView deselectRowAtIndexPath:indexPath animated:NO];
}
[self.deleteArray removeAllObjects];
[self.wfView.wfTableView setEditing:NO animated:YES];
}else{
self.wfView.checkAll.text = @"Select All";
_isInsertEdit = tile;
[self.wfView.wfTableView setEditing:YES animated:YES];
}
}点击左边的全选/返选方法
-(void)onTapCilck{
if(_isInsertEdit) {
_isInsertEdit = NO;
self.wfView.checkAll.text = @"Select All";
[self.deleteArray removeAllObjects];
[self.wfView.wfTableView setEditing:YES animated:YES];
[self.wfView.wfTableView reloadData];
}else {
self.wfView.checkAll.text = @"Reselect";
_isInsertEdit = YES;
[self.deleteArray removeAllObjects];
for (int i = 0; i< self.houList.count; i++) {
Devices *model = [_houList objectAtIndex:i];
[self.deleteArray addObject:model.deviceId];
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
[self.wfView.wfTableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionNone];
}
[self.wfView.wfTableView setEditing:YES animated:YES];
}
}//删除的按钮事件
-(void)onTapCancel{
NSLog(@"onTapCancel==onTapCancel======%@",_deleteArray);
//_deleteArray待删除确认的数组要大于0，否则提示请选中。
if(_deleteArray.count > 0){
NSString *tips = @"Are you sure to continue deleting?";
NSString *all = [NSString stringWithFormat:@"%@ %lu set of selected equipment list",tips,(unsigned long)_deleteArray.count];
CustomView *csview = [[CustomView alloc]initBackroundImage:@"beijingkuang_tuan" Title:@"Delete Tips" contentString:all sureButtionTitle:@"Confirm" cancelButtionTitle:@"Cancel"];
[csview setSureBolck:^(BOOL clickStatu) {
for(int i=0; i<self.deleteArray.count; i++){
[self.wfModel deleteDevice:self.deleteArray[i]];
}
[WHToast showMessage:@"successfully deleted" originY:500 duration:2 finishHandler:^{
}];
}];
}else{
[WHToast showMessage:@"Please select the device list to delete" originY:500 duration:2 finishHandler:^{
}];
}
}/*
代理
*/
//这里就是接收服务器的数据，赋值给houList数据列表
-(void)getDataSuccess:(NSArray*_Nullable) resultes{
[self hideHud];
[self.refreshControl endRefreshing];
self.wfView.netView.hidden = YES;
[self.wfView.wfTableView.mj_header endRefreshing];
if(resultes.count>0){
self.houList = [NSMutableArray arrayWithArray:resultes];
self.dataList = [NSMutableArray arrayWithArray:resultes];
[self.wfView.wfTableView reloadData];
}else{
[WHToast showMessage:@"The data is empty." originY:500 duration:2 finishHandler:^{
}];
}
}//关于Tableview的一些方法
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
WifiCell *wfCell = [tableView dequeueReusableCellWithIdentifier:@CELLIDENTIFITER];
if (wfCell == nil) {
wfCell = [[WifiCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:@CELLIDENTIFITER];
}
if([_houList count]>0){
Devices *model = [_houList objectAtIndex:indexPath.row];
wfCell.deviceAddre.text = model.numId;
wfCell.deviceName.text = model.deviceId;
}
return wfCell;
}#pragma tableView的点击事件 进行到下一个界面的时候
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//取消按下去后会有一个颜色
//[tableView deselectRowAtIndexPath:indexPath animated:NO];
static NSString *cellIdentifiter = @"WifiCellIdentifiter";
WifiCell *wifiCell= [tableView dequeueReusableCellWithIdentifier:cellIdentifiter];
if (wifiCell == nil) {
wifiCell = [[WifiCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifiter];
//wifiCell.selectionStyle = UITableViewCellSelectionStyleNone;
}
if(_houList.count > 0){
Devices *model = [_houList objectAtIndex:indexPath.row];
NSLog(@"model.deviceId======%@",model.deviceId);
//判断列表如果没有进入编辑状态，点列表就进入下一个页面。否则选中当前某个指定列表
if(self.wfView.wfTableView.isEditing == false) {
NSUInteger row = [indexPath row];
if(row<_houList.count){
// Devices *model = [_houList objectAtIndex:indexPath.row];
HandlerViewController *blue = [[HandlerViewController alloc] init];
blue.deviceId=model.deviceId;
blue.title = @"Date";
[self.navigationController pushViewController:blue animated:YES];
}
}else{
NSLog(@"选择当前的列表======");
//print("")
[self.deleteArray addObject:model.deviceId];
//_deleteArray.append(!)
}
}
}//此方法，是当选中某个指定列表后，返选取消选中的时候。就进入此方法。
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
//取消按下去后会有一个颜色
//
static NSString *cellIdentifiter = @"WifiCellIdentifiter";
WifiCell *wifiCell= [tableView dequeueReusableCellWithIdentifier:cellIdentifiter];
if (wifiCell == nil) {
wifiCell = [[WifiCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifiter];
//无色
//wifiCell.selectionStyle = UITableViewCellSelectionStyleNone;
}
if(_deleteArray.count > 0){
Devices *model = [_houList objectAtIndex:indexPath.row];
NSLog(@"model.deviceId======%@",model.deviceId);
//循环进行比较，服务器的列表数据和当前需要返选移除的列表id
for(int i=0; i<_deleteArray.count; i++){
if([model.deviceId containsString:_deleteArray[i]]){
//[self.houList addObject:model];
[self.deleteArray removeObject:[_deleteArray objectAtIndex:i]];
}
}
}
//[self.wfView.wfTableView deselectRowAtIndexPath:indexPath animated:NO];
//self.wfView.wfTableView.deselectRow(at: indexPath,animated:true);
}到此为止讲述完毕！
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