iOS开发之UITableView与UISearchController实现搜索及上拉加载，下拉刷新实例代码

废话不多说了，直接给大家贴代码了。

具体代码如下所示：

#import "viewcontroller.h"
#import "tuangoumodel.h"
#import "tuangoutableviewcell.h"
#define kdevicewidth [uiscreen mainscreen].bounds.size.width
#define kdeviceheight [uiscreen mainscreen].bounds.size.height
@interface viewcontroller ()<uitableviewdelegate,uitableviewdatasource,uisearchresultsupdating>
{
uisearchcontroller * _sscller;
}
@property(nonatomic,strong)nsmutablearray* secarrm;
@property(nonatomic,strong) nsmutablearray* tuangouarrm;
@property(nonatomic,strong)uitableview* mytable;
@end
@implementation viewcontroller
- (void)viewdidload {
[super viewdidload];
[self createna];
self.mytable.backgroundcolor = [uicolor lightgraycolor];
[self createsecb];
[self setuprefresh];
self.title = @"美食家";
}
#pragma mark - 导航
-(void)createna{
uibarbuttonitem *rightitem = [[uibarbuttonitem alloc]initwithtitle:@"edit" style:uibarbuttonitemstyleplain target:self action:@selector(tableedit:)];
self.navigationitem.rightbarbuttonitem = rightitem;
self.title = @"美食家";
}
// 点击导航右侧编辑按钮时，让表格可编辑
-(void)tableedit:(uibarbuttonitem *) btnitem{
// if (self.mytable.editing == no ) { // 没有处于编辑状态，导航按钮文字为“edit”
// // 点击“编辑”文字，让表格处于编辑状态，并把按钮的文字修改为“done"
// self.mytable.editing = yes;
// 
// }else{
// // 编辑状态下，点击”done"按钮，取消表格的编辑状态，修改导航按钮文字为"edit"
// self.mytable.editing = no;
// btnitem.title = @"edit" ;
// self.navigationitem.rightbarbuttonitems = @[btnitem];
// }
}
-(void)createsecb{
_sscller = [[uisearchcontroller alloc]initwithsearchresultscontroller:nil];
_sscller.searchresultsupdater = self;
self.mytable.tableheaderview = _sscller.searchbar;
}
-(nsmutablearray *)secarrm{
if (_secarrm == nil) {
return _secarrm = [nsmutablearray array];
}else{
return _secarrm;
}
}
- (void)didreceivememorywarning {
[super didreceivememorywarning];
}
#pragma mark - 表格懒加载
-(uitableview *)mytable{
if (_mytable == nil) {
_mytable = [[uitableview alloc]initwithframe:cgrectmake(, , kdevicewidth, kdeviceheight) style:uitableviewstyleplain];
[self.view addsubview:_mytable];
_mytable.delegate = self;
_mytable.datasource = self;
_mytable .separatorstyle = uitableviewcellseparatorstylesinglelineetched;
}
return _mytable;
}
#pragma mark - 团购数据懒加载
-(nsmutablearray *)tuangouarrm{
if (_tuangouarrm == nil) {
_tuangouarrm = [nsmutablearray array];
nsstring* plistpath = [[nsbundle mainbundle]pathforresource:@"tgs.plist" oftype:nil];
nsarray* tuanarr = [nsarray arraywithcontentsoffile:plistpath];
for (nsdictionary* dict in tuanarr) {
tuangoumodel* model =[[tuangoumodel alloc]initwithdict:dict];
[_tuangouarrm addobject:model];
}
}
return _tuangouarrm;
}
#pragma mark - 数据源协议
-(nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section{
if ( _sscller.active ) { //搜索结果表格
return self.secarrm.count;
}
else{
return self.tuangouarrm.count;
}
}
-(uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath{
//注册
[tableview registerclass:[tuangoutableviewcell class] forcellreuseidentifier:@"tuancell"];
//重置
tuangoutableviewcell* cell = [tableview dequeuereusablecellwithidentifier:@"tuancell"forindexpath:indexpath];
cell.backgroundcolor = [uicolor yellowcolor];
// 选中风格
cell.selectionstyle = uitableviewcellselectionstylenone;
if( !_sscller.active ){
cell.tuangoumodel = self.tuangouarrm[indexpath.row];
}else{ //搜索结果
cell.tuangoumodel = self.secarrm[indexpath.row];
}
return cell;
}
#pragma mark - tablev协议
-(cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath{
return ;
}
-(void)updatesearchresultsforsearchcontroller:(uisearchcontroller *)searchcontroller{
[self.secarrm removeallobjects];
for (int j = ; j < _tuangouarrm.count; j++) {
tuangoumodel* model =[[tuangoumodel alloc]init];
model = _tuangouarrm[j];
if ([model.title isequaltostring: _sscller.searchbar.text]) {
[self.secarrm addobject: model];
}
}
[self.mytable reloaddata];
}
//允许menu菜单
-(bool)tableview:(uitableview *)tableview shouldshowmenuforrowatindexpath:(nsindexpath *)indexpath
{
return yes;
}
//每个cell都可以点击出现menu菜单
-(bool)tableview:(uitableview *)tableview canperformaction:(sel)action forrowatindexpath:(nsindexpath *)indexpath withsender:(id)sender
{
return yes;
}
-(void)tableview:(uitableview *)tableview performaction:(sel)action forrowatindexpath:(nsindexpath *)indexpath withsender:(id)sender{
nslog(@"长按");
if (action ==@selector(copy:)) {
nslog(@"copy");
}
if (action ==@selector(cut:)) {
nslog(@"cut");
}
if (action ==@selector(paste:)) {
nslog(@"paste");
}
if (action ==@selector(selectall:)) {
nslog(@"selectall");
}
}
//上拉加载
-(void)tableview:(uitableview *)tableview willdisplaycell:(uitableviewcell *)cell forrowatindexpath:(nsindexpath *)indexpath{
if (indexpath.row == self.tuangouarrm.count - ) {
nslog(@"最后一行");
tuangoumodel* model =[[tuangoumodel alloc]init];
model = _tuangouarrm[arcrandom()%];
[_tuangouarrm addobject:model];
[self.mytable reloaddata];
}
}
//下拉刷新
-(void)setuprefresh
{
//.添加刷新控件
uirefreshcontrol *control=[[uirefreshcontrol alloc]init];
[control addtarget:self action:@selector(refreshstatechange:) forcontrolevents:uicontroleventvaluechanged];
[self.mytable addsubview:control];
//.马上进入刷新状态，并不会触发uicontroleventvaluechanged事件
[control beginrefreshing];
// .加载数据
[self refreshstatechange:control];
}
/**
* uirefreshcontrol进入刷新状态：加载最新的数据
*/
-(void)refreshstatechange:(uirefreshcontrol *)control
{
tuangoumodel* model =[[tuangoumodel alloc]init];
model = _tuangouarrm[arcrandom()%];
[_tuangouarrm insertobject:model atindex:];
[self.mytable reloaddata];
nslog(@"第一行");
[control endrefreshing];
}
//指示是否允许高亮显示选中的行
- (bool)tableview:(uitableview *)tableview shouldhighlightrowatindexpath:(nsindexpath *)indexpath{
return yes;
}
//选中某行时执行
- (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath{
nslog(@"selected: %ld, row:%ld", indexpath.section, indexpath.row);
}
//取消选中时执行，这个方法常在表格允许多选时调用执行
- (void)tableview:(uitableview *)tableview diddeselectrowatindexpath:(nsindexpath *)indexpath{
nslog(@"deselected: %ld, row:%ld", indexpath.section, indexpath.row);
}

以上代码是hi小编给大家介绍的ios开发之uitableview与uisearchcontroller实现搜索及上拉加载，下拉刷新实例代码，希望对大家有所帮助！