Tableviewcontroller use, TableView some common methods

#pragma  mark -#pragma  mark Table view data source//tableView  How many of them are there?  section-  (Nsinteger) Numberofsectionsintableview: (uitableview *) tableview {     // return the number of sections.    return [ Mutablearrayorder count];} Each  section  has several lines (several elements)-  (Nsinteger) TableView: (uitableview *) tableview  Numberofrowsinsection: (Nsinteger) Section {    // return the number  of rows in the section.    return 1;} #pragma  mark - tableView headView//tableView   section  head   View Height-( CGFloat) TableView: (uitableview *) Tableview heightforheaderinsection: (Nsinteger) section{     return 40.0;} tableview   section  Head   View-(uiview *) TableView: (uitableview *) tableview  ViewforhEaderinsection: (Nsinteger) section{    uiview *headview = [[uiview  Alloc] initwithframe:cgrectmake (0, 0, self.view.frame.size.width, 40)];    &NBSP;HEADVIEW.BACKGROUNDCOLOR&NBSP;=&NBSP;[UICOLOR&NBSP;COLORWITHRED:1&NBSP;GREEN:1&NBSP;BLUE:1&NBSP;ALPHA:1] ;         uiimage *image = [uiimage imagenamed:@ " Shop. png "];    uiimageview *businesslogo = [[uiimageview alloc]  Initwithframe:cgrectmake (10, 12, 15, 15)];    [businesslogo setimage: image];        uilabel *titlelabel = [[uilabel  Alloc] initwithframe:cgrectmake (40, 0, 150, 40)];     Titlelabel.backgroundcolor = [uicolor clearcolor];    titlelabel.textcolor  = [UIColor darkGrayColor];    titleLabel.font = [UIFont systemFontOfSize:13];         uiimage *imagearrow = [uiimage imagenamed:@ "Right _02.png"];     uiimageview *arrowview = [[uiimageview alloc] initwithframe: CGRectMake (200, 12, 15, 15)];    [arrowview setimage:imagearrow];         uilabel *ordertaglabel = [[uilabel alloc]  initwithframe:cgrectmake (headview.frame.size.width-60, 0, 150, 40)];     orderTagLabel.backgroundColor = [UIColor clearColor];     Ordertaglabel.textcolor = [uicolor darkgraycolor];    ordertaglabel.font  = [uifont systemfontofsize:13];        if ([ mutablearrayorder count] >0) {&NBSP;&NBSP;&NBSp;     orderentity *entity = [mutablearrayorder objectatindex: section];        titlelabel.text = entity.store_name;         orderTagLabel.text = entity.status;     }        [headView addSubview:businessLogo];     [headview addsubview:titlelabel];    [headview addsubview:arrowview] ;    [headview addsubview:ordertaglabel];         return headview;} #pragma  mark - tableView footView//tableView   section  trailer   View Height-( CGFloat) TableView: (uitableview *) Tableview heightforfooterinsection: (Nsinteger) section{     return 90.0;} tableview   section  's Tail   View-(uiview *) TableView: (uitableview *) Tableview viewforfooterinsection: (Nsinteger) section{    uiview * Footview = [[uiview alloc] initwithframe:cgrectmake (0, 0, 320, 90)];     footview.backgroundcolor = [uicolor colorwithred:1 green:1 blue:1  alpha:1];//[uicolor blackcolor];        uilabel * Titlelabel = [[uilabel alloc] initwithframe:cgrectmake (0, 0,  self.view.frame.size.width-10, 39)];    titlelabel.backgroundcolor = [ Uicolor clearcolor];    titlelabel.textcolor = [uicolor darkgraycolor] ;    titlelabel.font = [uifont systemfontofsize:13];     titleLabel.textAlignment = NSTextAlignmentRight;         uilabel *linelabel = [[uilabel&nbSp;alloc] initwithframe:cgrectmake (0, 40, self.view.frame.size.width, 1)];     linelabel.backgroundcolor = [uicolor colorwithred:0.95 green:0.93 blue:0. 92 alpha:1];        uibutton *delorder = [[ Uibutton alloc] initwithframe:cgrectmake (SELF.VIEW.FRAME.SIZE.WIDTH-270,&NBSP;45,&NBSP;80,&NBSP;30)] ;     [delorder.layer setcornerradius:5.0]; //Set Rectangle four fillet radius     [ delorder.layer setborderwidth:1.0]; //Border Width     cgcolorspaceref colorspace  = cgcolorspacecreatedevicergb ();    cgcolorref colorref =  Cgcolorcreate (ColorSpace, (cgfloat[]) { 0.9, 0.9, 0.9, 1 });     [ delorder.layer setbordercolor:colorref];//Border Color     [delorder settitle: @ " Delete Order " forstate: uicontrolstatenormal];    delorder.titlelabel.font = [uifont systemfontofsize:  14.0];//    [delorder setbackgroundcolor: [uicolor bluecolor]];     [delOrder setTitleColor:[UIColor blackColor]forState:UIControlStateNormal];         UIButton *getLogistics =[[UIButton alloc]  Initwithframe:cgrectmake (self.view.frame.size.width-180, 45, 80, 30)];    [ getlogistics.layer setcornerradius:5.0]; //Set Rectangle four fillet radius     [getlogistics.layer  setborderwidth:1.0]; //Border Width     [getlogistics.layer setbordercolor:colorref ];//border Color     [getlogistics settitle: @ "Delete order"  forState:  uicontrolstatenormal];    getlogistics.titlelabel.font = [uifont  Systemfontofsize: 14.0];//   &nbsP [Getlogistics setbackgroundcolor: [uicolor bluecolor]];    [getlogistics  setTitleColor:[UIColor blackColor]forState:UIControlStateNormal];         uibutton *ordercomment =[[uibutton alloc] initwithframe:cgrectmake ( SELF.VIEW.FRAME.SIZE.WIDTH-90,&NBSP;45,&NBSP;80,&NBSP;30)];    [ordercomment.layer  setcornerradius:5.0]; //Set Rectangle four fillet radius     [orderComment.layer setBorderWidth:1.0];  //Border Width     [ordercomment.layer setbordercolor:colorref];//border color      [ordercomment settitle: @ "to pay"  forState: UIControlStateNormal];     orderComment.titleLabel.font = [UIFont systemFontOfSize: 14.0];//     [ordercomment setbackgroundcolor: [uicolor bluecolor]];    [ Ordercomment settitlecolor:[uicoLor blackcolor]forstate:uicontrolstatenormal];        uilabel  *linelabel2 = [[uilabel alloc] initwithframe:cgrectmake (0, 80,  SELF.VIEW.FRAME.SIZE.WIDTH,&NBSP;1)];    linelabel2.backgroundcolor = [uicolor  colorWithRed:0.95 green:0.95 blue:0.95 alpha:1];         uilabel *linelabel3 = [[uilabel alloc] initwithframe:cgrectmake (0,  81,&NBSP;SELF.VIEW.FRAME.SIZE.WIDTH,&NBSP;10)];    linelabel3.backgroundcolor =  [uicolor colorwithred:0.95 green:0.93 blue:0.92 alpha:1];         if ([mutablearrayorder count] >0) {         OrderEntity *entity = [mutableArrayOrder objectAtIndex:section];         titlelabel.text = [nsstring stringwithformat:@ "%@%@%@%@%@", @ "Total: ￥ ", entity.total_amount,@ "  (including freight: ￥  ", entity.ship_cost,@") "];    }         [footview addsubview:titlelabel];    [footview addsubview:linelabel];//     [footview addsubview:delorder];    [footview addsubview: getlogistics];    [footview addsubview:ordercomment];    [ footview addsubview:linelabel2];    [footview addsubview:linelabel3];         return footview;} Elements in tableview   cell -  (uitableviewcell *) TableView: (uitableview *) TableView  cellforrowatindexpath: (nsindexpath *) indexpath {// Identifier  Find  cell  View     static nsstring *[email protected] "Ordertableviewcell";    ordertableviewcell *cell =  (OrderTableViewCell  *) [tableview dequeuereusablecellwithidentifier:coupontableviewcellidentifier];     //prevent   No  cell  lead to  bug  error   run failure, make code more robust, safe, stable, effective     if   (Cell == nil)  {        nsarray *array =  [[nsbundle mainbundle] loadnibnamed:@ "Ordertableviewcell"  owner:self options:nil];         cell = [array objectAtIndex:0];     }        cell.selectionStyle =  Uitableviewcellselectionstylenone;        if ([mutableArrayOrder  count] > 0) {        orderentity *entity =  [Mutablearrayorder objectatindex:indexPath.row];                for   (int i = 0; i < [entity.product_list count]; i++)  {             orderproductentity *productentity  = [entity.product_list objectAtIndex:i];             cell.productName.text = productEntity.product_name;             [cell.productImage sd_setBackgroundImageWithURL:[NSURL  urlwithstring:productentity.album_thumb] forstate:uicontrolstatenormal];             cell.introduce.text = productEntity.introduce;             cell.goodsCnt.text = [NSString  stringwithformat:@ "%@%@", @ "x  ",productentity.count];             cell.price.text = productentity.price;        }     }       return cell;} #pragma  mark  return each group header title name-(nsstring *) TableView: (uitableview *) tableview  Titleforheaderinsection: (Nsinteger) section{    return @ "Head";} #pragma  mark  return description of each set of tails-(nsstring *) TableView: (uitableview *) tableview  Titleforfooterinsection: (Nsinteger) section{    return @ "tail";} Set the   height of each line element-  (cgfloat) TableView: (uitableview *) Tableview heightforrowatindexpath: ( nsindexpath *) indexpath {    return 100;} #pragma  mark -#pragma  mark Table view delegate//tableVIew  Click events for each line element  -   (void) TableView: (uitableview *) Tableview didselectrowAtindexpath: (nsindexpath *) indexpath {    } 

Ps:

The following three functions must be implemented in Viewcontroller
(1) Numberofsectionsintableview:
How many sections are there in a table?
(2) Tableview:numberofrowsinsecion:
How many units or rows each section needs to load
(3) Tableview:cellforrowatindexpath:

UITableViewCell instances, used to form the table view

Tableviewcontroller use, TableView some common methods