IOS _ dynamically insert and delete rows, ios dynamically insert and delete rows

IOS _ dynamically insert and delete rows, ios dynamically insert and delete rows
Finally:

It is divided into three layers of MVC design; there are two types of custom cells; one is MainCell, which is provided by ModelArr; the other is the inserted Cell, which is created by code, and the status data is supplied by another array.
Data Source section:

/// MyProjectCellModel. h // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // data model used by the cell in the list # import <Foundation/Foundation. h> @ interface MyProjectCellModel: NSObject // icon @ property (nonatomic, copy) NSString * icon; // title @ property (nonatomic, copy) NSString * title; // publish status @ property (nonatomic, copy) NSString * publishStatus; // Date @ property (nonatomic, copy) N SString * date; // how many followers @ property (nonatomic, copy) NSString * num; // What operations do I need to perform when I click the rightmost button ?? A View is displayed to modify the publishing status ??? // Class method. The dictionary-to-object conversion method is similar to javaBean one-time filling + (MyProjectCellModel *) modelWithDict :( NSDictionary *) dict; // object method. After setting the object attributes, returned object-(MyProjectCellModel *) initWithDict :( NSDictionary *) dict; @ end

<Span style = "color: #330033;"> /// MyProjectCellModel. m // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // data model used by the cell in the list # import "MyProjectCellModel. h "@ implementation MyProjectCellModel // class method. The dictionary object is similar to the one-time filling + (MyProjectCellModel *) modelWithDict :( NSDictionary *) dict {// only calls the initWithDict method of the object, self is used to ensure compatibility with the subclass. return [[self alloc] initWithDict: dict];} // object method. After setting the object attributes, the object-(MyProjectCellModel *) is returned *) initWithDict :( NSDictionary *) dict {// The init method of the parent NSObject must be called first if (self = [super init]) {// set the attributes of the object [self setValuesForKeysWithDictionary: dict] ;}// return the filled object return self ;}@ end </span>

Main Cell, composed of xib, class declaration, and class implementation

/// MyProjectCell. h // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // This is the main Cell used to display the Cell # import <UIKit/UIKit. h> // define a block. click the button on the Right To tell the master controller to bring up a View (including pause, modification, and deletion). The block parameter is (int row) typedef void (^ cellRightBtnBlock) (int); @ class MyProjectCellModel; @ interface MyProjectCell: UITableViewCell // icon @ property (nonatomic, weak) IBOutlet UIImageView * iconView; // Title @ property (nonatomic, weak) IBOutlet UILabel * titleLabel; // publish status of Weibo [pause, draft, publish, and expire] @ property (nonatomic, weak) IBOutlet UILabel * publishStatusLabel; // Date @ property (nonatomic, weak) IBOutlet UILabel * dateLabel; // number of followers @ property (nonatomic, weak) IBOutlet UILabel * numLabel; // The fixed number of characters followed. If no one pays attention to this microblog, @ property (nonatomic, weak) IBOutlet UILabel * constLabel will not be displayed; // a member attribute block, when the button on the right of the cell is clicked, a view will pop up to change the Weibo status @ property (nonatomic, copy) cellRightBtnBlock wannaChangeStatusBlock; // load and instantiate an object from xib + (MyProjectCell *) myProjectCell; // return the object after encapsulated data-(MyProjectCell *) cellWithCellModel :( MyProjectCellModel *) cellModel; @ end

/// MyProjectCell. m // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // This is the main Cell used to display the Cell # import "MyProjectCell. h "# import" MyProjectCellModel. h "@ implementation MyProjectCell // load and instantiate an object from xib + (MyProjectCell *) myProjectCell {// mainBundel load xib, no need to write extension. xib return [[NSBundle mainBundle] loadNibNamed: @ "MyProjectCell" owner: nil options: nil] [0];} // return the object after encapsulated data-(MyProjectCell *) cellWithCellModel :( MyProjectCellModel *) cellModel {// Avatar rounded corner _ iconView. layer. cornerRadius = 6; _ iconView. layer. masksToBounds = YES; _ iconView. image = [UIImage imageNamed: cellModel. icon]; _ titleLabel. text = cellModel. title; _ publishStatusLabel. text = cellModel. publishStatus; _ dateLabel. text = cellModel. date; if ([_ numLabel. text intValue]) {_ constLabel. hidden = YES;} else {_ numLabel. text = cellModel. num; _ constLabel. hidden = NO;} // generate a button on the right to add it to the rightmost cell UIButton * rightBtn = [UIButton buttonWithType: bytes]; [rightBtn setBackgroundImage: [UIImage imageNamed: @ "MyProjectCellRightBtn"] forState: UIControlStateNormal]; rightBtn. frame = CGRectMake (286, 0, 34, 44); [self. contentView addSubview: rightBtn]; rightBtn. tag = 5267; [rightBtn failed: [UIImage imageNamed: @ "success"] forState: UIControlStateNormal]; [rightBtn addTarget: self action: @ selector (rightBtnClicked :) forControlEvents: Success]; return self;} // define the macro to judge ios7 # define iOS7 [[[UIDevice currentDevice] systemVersion] floatValue]> = 7.0-(void) rightBtnClicked :( UIButton *) sender {int row = 0; MyProjectCell * cell; UITableView * tableView; if (iOS7) {NSLog (@ "button parent class 2: % @", [[sender superview]); cell = (MyProjectCell *) [[[sender superview]; NSLog (@ "cell parent class 2: % @ ", [[cell superview]); tableView = (UITableView *) [[cell superview];} else {// iOS6 cell = (MyProjectCell *) [sender superview]; NSLog (@ "cell: % @", cell); tableView = (UITableView *) [cell superview];} NSIndexPath * path = [tableView indexPathForCell: cell]; row = path. row; NSLog (@ "parent class 1% @", [sender superview]); NSLog (@ "parent class 2% @", [[sender superview]); NSLog (@ "parent class 3% @", [[[sender superview]); NSLog (@ "parent class 4% @", [[[sender superview]); NSLog (@ "click the button on the Right of row % d", row ); // call the block of the external controller and pass the row number of the cell to the past _ wannaChangeStatusBlock (row);} @ end

When you click the button on the rightmost side of the MainCell, It is dynamically added under the main Cell.

//// ChangeStatusCell. m // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // The attached Cell. When you click the button at the rightmost of the MainCell, It is dynamically added under the main Cell # import "ChangeStatusCell. h "@ implementation ChangeStatusCell // additional cell, no xib, created by the code-(id) initWithStyle :( UITableViewCellStyle) style reuseIdentifier :( NSString *) reuseIdentifier {self = [super initWithStyle: style reuseIdentifier: reuseIdentifier]; if (self) {// Add three buttons and set tag UIButton * b1 = [self createButtonWithFrame: CGRectMake (0, 0,106.5, 44) Target: self Selector: @ selector (btnAction :) Image: @ "reported" ImagePressed: @ "StatusPause_blue.png"]; b1.tag = 1; UIButton * b2 = [self createButtonWithFrame: CGRectMake (106.5, 0,106.5, 44) Target: self Selector: @ selector (btnAction :) Image: @ "reported" ImagePressed: @ "StatusModify_blue.png"]; b2.tag = 2; UIButton * b3 = [self createButtonWithFrame: CGRectMake (213, 0,106.5, 44) Target: self Selector: @ selector (btnAction :) Image: @ "StatusTrash_gray.png" ImagePressed: @ "StatusTrash_blue.png"]; b3.tag = 3; // Add to contentView; otherwise, events cannot be received. // For example, adding a button directly to tableView cannot receive events; because tableView does not pass events to any controls outside of its system [self. contentView addSubview: b1]; [self. contentView addSubview: b2]; [self. contentView addSubview: b3];} return self;}-(void) btnAction :( id) sender {UIButton * btn = (UIButton *) sender; switch (btn. tag) {case 1: {NSLog (@ ">>>>>>>>>>> B1");} break; case 2: {NSLog (@ ">>>>>>>>> B2") ;}break; case 3: {NSLog (@ ">>>>>>>> B3") ;}break; default: break ;}# pragma mark-tool method-(UIButton *) createButtonWithFrame: (CGRect) frame Target :( id) target Selector :( SEL) selector Image :( NSString *) image ImagePressed :( NSString *) imagePressed {UIButton * button = [UIButton buttonWithType: Success]; [button setFrame: frame]; UIImage * newImage = [UIImage imageNamed: image]; [button failed: newImage forState: UIControlStateNormal]; UIImage * newPressedImage = [UIImage imageNamed: imagePressed]; [button setBackgroundImage: newPressedImage forState: UIControlStateHighlighted]; [button addTarget: target action: selector forControlEvents: UIControlEventTouchUpInside]; return button;} @ end

Controller, inherited from UIViewController, the core part

/// MyProjectController. m // dynamically insert and delete rows /// Created by beyond on 14-10-18. // Copyright (c) 2014 com. beyond All rights reserved. // controller, the most important part # import "MyProjectController. h "# import" MyProjectCell. h "# import" ChangeStatusCell. h "# import" MyProjectCellModel. h "// very useful. quickly create a rect macro and adapt to it # define IsIOS7 ([[[UIDevice currentDevice] systemVersion] substringToIndex: 1] intValue]> = 7) # define CGRECT_NO_NAV (x, y, w, h) CG RectMake (x), (y + (IsIOS7? 20:0), (w), (h) # define CGRECT_HAVE_NAV (x, y, w, h) CGRectMake (x), (y + (IsIOS7? 64: 0), (w), (h) # define IS_IOS7 [[[UIDevice currentDevice] systemVersion] floatValue] >=7.0 @ interface MyProjectController () <UITableViewDataSource, UITableViewDelegate> {UITableView * _ tableView; // data source object array NSMutableArray * _ modelArr; // an auxiliary state dictionary array; the length is the same as that of modelArr above. NSMutableArray * _ statusDictArr; // record the expanded row number int _ ExpandedMainCellRow;} @ end @ implementation MyProjectController-(void) viewDidLoad {[s Uper viewDidLoad]; if (IS_IOS7) {self. edgesForExtendedLayout = UIRectEdgeNone; self. extendedLayoutIncludesOpaqueBars = NO; self. activities = NO;} // Add tableView and set the proxy and Data Source UITableView * tableView = [[UITableView alloc] initWithFrame: CGRECT_NO_NAV (0, 0,320,460) style: UITableViewStylePlain]; tableView. dataSource = self; tableView. delegate = self; [self. view addSubv Iew: tableView]; _ tableView = tableView; _ ExpandedMainCellRow =-1; // provides an array of data models _ modelArr = [NSMutableArray array]; // an array used to record the primary Cell, the additional Cell, and the additional status; the two have the same length _ statusDictArr = [NSMutableArray array]; // load the data source [self loadData];} # pragma mark-Initialize data-(void) loadData {NSString * filePath = [[NSBundle mainBundle] pathForResource: @ "MyProjectList. plist "ofType: nil]; NSArray * tempArr = [NSArray arrayWithContents OfFile: filePath]; // very important !!!!!!! NSDictionary * statusDict = @ {@ "Cell": @ "MyProjectCell", @ "isAttached": @ (NO)}; for (NSDictionary * dict in tempArr) {MyProjectCellModel * model = [MyProjectCellModel modelWithDict: dict]; [_ modelArr addObject: model]; [_ statusDictArr addObject: statusDict];} # pragma mark-TableView proxy method // deselect the selected Result of the default click cell-(void) tableView :( UITableView *) tableView didSelectRowAtIndexPath :( NSIndexPath *) indexP Ath {[tableView deselectRowAtIndexPath: indexPath animated: YES];} // high-(CGFloat) tableView :( UITableView *) tableView heightForRowAtIndexPath :( NSIndexPath *) indexPath {return 44 ;} # pragma mark-TableView data source // total number of rows-(NSInteger) tableView :( UITableView *) tableView numberOfRowsInSection :( NSInteger) section {return _ statusDictArr. count;} // The core method; create a cell by situation; or fill the data model of the cell-(UITableViewCell *) tableView :( UITableV Iew *) tableView cellForRowAtIndexPath :( NSIndexPath *) indexPath {if ([[_ statusDictArr [indexPath. row] objectForKey: @ "Cell"] isEqualToString: @ "MyProjectCell"]) {static NSString * cel1__1 = @ "MyProjectCell"; MyProjectCell * cell = [tableView sequence: cel1__1]; if (cell = nil) {cell = [MyProjectCell myProjectCell]; cell. selectionStyle = UITableViewCellSelectionStyleGray; _ u NSAID fe_unretained MyProjectController * blockCtroller = self; cell. wannaChangeStatusBlock = ^ (int row) {NSLog (@ "Get the row number of the cell to be clicked in the Controller: % d", row); // call the Controller method, display or hide the view [blockCtroller showHideChangeStatusView: row] ;}}// transfer the data source // set the unique content in the cell int tempRow = indexPath. row; if (_ ExpandedMainCellRow! =-1 & indexPath. row> _ ExpandedMainCellRow) {tempRow = indexPath. row-1;} // If the expanded row is closed, this method is called; otherwise, or take the data model if (_ ExpandedMainCellRow =-1) {tempRow = indexPath. row;} MyProjectCellModel * model = [_ modelArr objectAtIndex: tempRow]; cell = [cell cellWithCellModel: model]; return cell;} else if ([_ statusDictArr [indexPath. row] objectForKey: @ "Cell"] isEqualToString: @ "ChangeStatusC Ell "]) {static NSString * cel%_2 = @" ChangeStatusCell "; ChangeStatusCell * cell = [tableView dequeueReusableCellWithIdentifier: cel%_2]; if (cell = nil) {cell = [[ChangeStatusCell alloc] initWithStyle: UITableViewCellStyleDefault reuseIdentifier: cel%_2]; cell. selectionStyle = UITableViewCellSelectionStyleNone;} return cell;} return nil;}-(void) scrollViewWillBeginDragging :( UIScrollView *) scro LlView {// close the expanded AttachRow before rolling start} # pragma mark-call // display or hide the view used to change the status when the rightmost button of the cell is clicked) showHideChangeStatusView :( int) row {if (row = _ ExpandedMainCellRow) {// if the row to be clicked is already an opened row, close it directly and return [self closeOneExpandedCell: _ ExpandedMainCellRow];} else {if (_ ExpandedMainCellRow =-1) {// indicates that it has never been expanded. Expand [self expandOneRow: row] for the first time;} else {// If the row to be clicked has not been expanded, close the expanded row first, and then expand the opened row. // pay special attention to this, this row number contains the expanded TachCell. Therefore, 1 is subtracted. The row number in modelArr is the expanded row in if (_ ExpandedMainCellRow <row; row = row-1;} [self closeOneExpandedCell: _ ExpandedMainCellRow]; [self expandOneRow: row] ;}} // close the ExpandedCell-(void) closeOneExpandedCell :( int) row {// The unexpanded row is not displayed after this operation is completed, so it must be cleared first; must be cleared first ~~~~ Because the cellForRow method _ ExpandedMainCellRow =-1 will be called in the tableViewupdate method; // If row 0th is already appended, disable the additional cell NSDictionary * dic =@{ @ "Cell ": @ "MyProjectCell", @ "isAttached": @ (NO)}; // The bool in the primary Cell is restored to NO _ statusDictArr [row] = dic; NSLog (@ "before deletion: % d ", [_ statusDictArr count]); // Delete AttchedCell at the next position in the primary Cell array [_ statusDictArr removeObjectAtIndex: row + 1]; NSLog (@ "delete: % d", [_ statusDictArr count]); [_ tableView beginUpdates]; NSIndexPath * path = [NSIndexPath indexPathForRow: row + 1 inSection: 0]; [_ tableView deleteRowsAtIndexPaths: @ [path] withRowAnimation: UITableViewRowAnimationMiddle]; [_ tableView endUpdates];} // record and expand the specified row (the sequence cannot be reversed)-(void) expandOneRow :( int) row {_ ExpandedMainCellRow = row; // if the additional cell is not opened in row 0th, enable the additional cell NSDictionary * dic ={ @ "Cell ": @ "MyProjectCell", @ "isAttached": @ (YES)}; // modify the status word "isAttached" to yes _ statusDictArr [row] = dic; // Insert a new ChangeStatusCell to the array NSDictionary * addDic ={ @ "Cell": @ "ChangeStatusCell", @ "isAttached": @ (YES )}; [_ statusDictArr insertObject: addDic atIndex: row + 1]; [_ tableView beginUpdates]; NSIndexPath * path = [NSIndexPath indexPathForRow: row + 1 inSection: 0]; [_ tableView insertRowsAtIndexPaths: @ [path] withRowAnimation: UITableViewRowAnimationMiddle]; [_ tableView endUpdates]; if (row = _ modelArr. count-1) {// if the last row is displayed, You Need To scroll up the height of table view 44 [self showExpandedCellForLastRow];} // if the last row is displayed, also let tableView scroll up to 44 height-(void) showExpandedCellForLastRow {NSIndexPath * path = [NSIndexPath indexPathForRow: _ modelArr. count inSection: 0]; [_ tableView scrollToRowAtIndexPath: path atScrollPosition: UITableViewScrollPositionMiddle animated: YES];} @ end

Js dynamically inserts a row before the total row and adds the delete button for each row to delete the current row.

When you traverse the output database information, just add the modify/delete button.
 
Create a one-way Dynamic Linked List and insert, delete, and input it, including the following tasks:

# Include <stdio. h>
# Define LEN sizeof (struct number)
Struct number/* definition number and number */
Int name;
Int num;
Struct number * next;
};

Struct number * create ()/* create a linked list function */
{
Struct number * head, * new, * tail, * p;
Int count = 0;
While (1)
{
New = (struct number *) malloc (LEN );
Printf ("input Name and Number \ n ");
Scanf ("% d", & new-> name, new-> num);/* user input number and number */
If (new-> name = 0)
{
Free (new );
Break;
}
Else if (count = 0)
{
Head = new;
Tail = new;
}
Else
{
Tail-> next = new;
Tail = new;
}
Count ++;
}
Tail-> next = NULL;
Return (head );
}

Struct number * delist (struct number * head, int name)/* function for deleting numbers */
{
Struct number * p0, * p1;
P1 = head;
If (head = NULL)
{
Printf ("\ nempty list! \ N ");
}
Else
If (p1-> name = name)/* Find the same number */
Head = p1-> next;
Else
{
While (p1-> name! = Name & p1-> next! = NULL)/* troubleshoot one by one */
{
P0 = p1;
P1 = p1-> next;
}
If (p1-> name = name)
{
P0-> next = p1-> next;
Printf ("The node is deleted \ n ");
}
Else
Printf ("The node can not been foud! \ N ");
}
Return head;
}

Struct number * insert (struct number * head, struct number * new)
{... Remaining full text>