Cat learning iOS (14) UI UITableView Extension _ Table Modification _ (Add and remove Move)

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Material code Address: http://blog.csdn.net/u013357243/article/details/44727823
Original address: Http://blog.csdn.net/u013357243?viewmode=contents

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Code

//ps: New iOS Exchange Learning Group: 304570962 You can add a cat or a cat qq:1764541256 or Znycat Let's study hard together. Original: Http://blog.csdn.net/u013357243?viewmode=contents//HMVIEWCONTROLLER.M//06-Modification of the table////Created by Apple on 14-8-19.//Copyright (c) 2014 itcast. All rights reserved.//#import "HMViewController.h"  @interface hmviewcontroller () <Uitableviewdatasource, uitableviewdelegate >/** Data list * /@property(nonatomic,Strong)Nsmutablearray*datalist;@property(nonatomic,Strong)UITableView*tableview;@end @implementation hmviewcontroller - (UITableView*) tableview{if(_tableview = =Nil) {_tableview = [[UITableViewAlloc] initWithFrame: Self. View. BoundsStyle:uitableviewstyleplain]; _tableview. DataSource= Self; _tableview. Delegate= Self; [ Self. ViewAddsubview:_tableview]; }return_tableview;} - (Nsmutablearray*) datalist{if(_datalist = =Nil) {_datalist = [Nsmutablearrayarraywithobjects:@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 2nd", @"Cat No. 3rd", @"Cat No. 4th", @"Cat No. 5th",@"Cat No. 6th", @"Cat No. 7th", @"Cat No. 8th",@"Cat No. 9th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",@"Cat No. 1th", @"Cat No. 1th", @"Cat No. 1th",Nil]; }return_datalist;} - (void) viewdidload{[SuperViewdidload]; [ SelfTableView];//Start editing, once editing = = Yes to turn on Delete mode by default     Self. TableView. Editing=YES;} - (Nsinteger) TableView: (UITableView*) TableView numberofrowsinsection: (Nsinteger) section{return  Self. DataList. Count;} - (UITableViewCell*) TableView: (UITableView*) TableView Cellforrowatindexpath: (Nsindexpath*) indexpath{Static NSString*id = @"Cell";UITableViewCell*cell = [TableView dequeuereusablecellwithidentifier:id];if(Cell = =Nil) {cell = [[UITableViewCellAlloc] Initwithstyle:uitableviewcellstyledefault Reuseidentifier:id]; }//Setup tableCell. Textlabel. Text= Self. DataList[Indexpath. Row];returnCell;}//As long as this method is implemented, it is possible to support gesture drag Delete, delete need to do it yourself! /** Uitableviewcelleditingstylenone, uitableviewcelleditingstyledelete, delete Uitableviewcelleditingstyleinsert Add * /- (void) TableView: (UITableView*) TableView Commiteditingstyle: (uitableviewcelleditingstyle) Editingstyle Forrowatindexpath: (Nsindexpath*) indexpath{if(Editingstyle = = Uitableviewcelleditingstyledelete) {NSLog(@"to delete");//MVC = data is saved in the model        //1. Delete indexpath data in Self.datalist[ Self. DataListRemoveobjectatindex:indexpath. Row];NSLog(@"%@", Self. DataList);//2. Refresh the table (reload data)        //Reload all data//[Self.tableview reloaddata];        //Deleterowsatindexpaths Let the table control animate delete the specified row[ Self. TableViewDeleterowsatindexpaths:@[indexpath] Withrowanimation:uitableviewrowanimationmiddle]; }Else if(Editingstyle = = Uitableviewcelleditingstyleinsert) {NSLog(@"To add Data");//1. Adding data to an array[ Self. DataListinsertobject:@"Wangxiao"Atindex:indexpath. Row+1];//2. Refresh the table//[Self.tableview reloaddata];        //Insertrowsatindexpaths Let the Table control animation add the specified row in the specified Indexpath        //Create a new Indexpath        Nsindexpath*path = [NsindexpathIndexpathforrow:indexpath. Row+1Insection:indexpath. section]; [ Self. TableViewInsertrowsatindexpaths:@[path] Withrowanimation:uitableviewrowanimationmiddle]; }}//As long as this method is implemented, you can display the drag control- (void) TableView: (UITableView*) TableView Moverowatindexpath: (Nsindexpath*) Sourceindexpath Toindexpath: (Nsindexpath*) destinationindexpath{//Interface Data UITableView has been completed.    //Adjustment data can be//[self.datalist exchangeObjectAtIndex:sourceIndexPath.row WithObjectAtIndex:destinationIndexPath.row];    //1. Remove the source from the array    IDSource = Self. DataList[Sourceindexpath. Row];//2. Remove the source from the array[ Self. DataListRemoveobjectatindex:sourceindexpath. Row];NSLog(@"%@", Self. DataList);//3. Insert the source into the array at the target location[ Self. DataListInsertobject:source Atindex:destinationindexpath. Row];NSLog(@"%@", Self. DataList);}#pragma mark-Proxy method//Return to edit style, if not implemented, the default is delete-(Uitableviewcelleditingstyle) TableView: (UITableView*) TableView Editingstyleforrowatindexpath: (Nsindexpath*) indexpath{//if (indexpath.row% 2) {//return uitableviewcelleditingstyleinsert;//} else {//return uitableviewcelleditingstyledelete;//    }    returnUitableviewcelleditingstyleinsert;}@end

UITableView support for delete gestures

As long as the implementation of this method, you can support gesture drag Delete, delete need to do their own!

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

Uitableviewcelleditingstylenone, no effect.
Uitableviewcelleditingstyledelete, deleting
Uitableviewcelleditingstyleinsert add

To do in the delete:
Use [Self.tableview Reloaddata] when reloading data; inefficient

//MVC = data is saved in the model . Span class= "Hljs-comment" >//1. Delete the data in self.datalist indexpath  [self   removeobjectatindex:indexpath.row ]; nslog  (@ "%@" , self  );        //2. Refresh the table (reload data)  //reload all data         //[Self.tableview reloaddata];         //deleterowsatindexpaths let the table control animate delete the specified row  [self  .tableview  deleterowsatindexpaths:@[ Indexpath] withrowanimation:uitableviewrowanimationmiddle];  

UITableView Increase

To implement the Guard Agent method tableview.delegate = self;

// 返回编辑样式，如果没有实现此方法，默认都是删除- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{//    if (indexPath.row % 2) {//        return UITableViewCellEditingStyleInsert;//    } else {//        return UITableViewCellEditingStyleDelete;//    }    return UITableViewCellEditingStyleInsert;}

Below is the-(void) TableView: (UITableView ) TableView Commiteditingstyle: (uitableviewcelleditingstyle) Editingstyle Forrowatindexpath: (Nsindexpath ) Indexpath method set in the
Determine the edit style, delete or add, then do the appropriate action

 if(Editingstyle = = Uitableviewcelleditingstyleinsert) {NSLog(@"To add Data");//1. Adding data to an array[ Self. DataListinsertobject:@"Mong Wang Wang Wang dog"Atindex:indexpath. Row+1];//2. Refresh the table//[Self.tableview reloaddata];        //Insertrowsatindexpaths Let the Table control animation add the specified row in the specified Indexpath        //Create a new Indexpath        Nsindexpath*path = [NsindexpathIndexpathforrow:indexpath. Row+1Insection:indexpath. section]; [ Self. TableViewInsertrowsatindexpaths:@[path] Withrowanimation:uitableviewrowanimationmiddle];

UITableView Mobile

//As long as this method is implemented, you can display the drag control- (void) TableView: (UITableView*) TableView Moverowatindexpath: (Nsindexpath*) Sourceindexpath Toindexpath: (Nsindexpath*) destinationindexpath{//Interface Data UITableView has been completed.    //Adjustment data can be//[self.datalist exchangeObjectAtIndex:sourceIndexPath.row WithObjectAtIndex:destinationIndexPath.row];    //1. Remove the source from the array    IDSource = Self. DataList[Sourceindexpath. Row];//2. Remove the source from the array[ Self. DataListRemoveobjectatindex:sourceindexpath. Row];NSLog(@"%@", Self. DataList);//3. Insert the source into the array at the target location[ Self. DataListInsertobject:source Atindex:destinationindexpath. Row];NSLog(@"%@", Self. DataList);}

PS: New iOS Exchange Learning Group: 304570962 can add cat qq:1764541256 or Znycat Let's study hard together. Original: Http://blog.csdn.net/u013357243?viewmode=contents

Cat learning iOS (14) UI UITableView Extension _ Table Modification _ (Add and remove Move)