Question

我是一名新的ios程序员。现在我正在尝试使用.plist文件创建一个表..但我遇到了一个问题我不知道如何将单元格插入表视图并将其更新为.plist文件。我希望我的表必须在单击[+]单元格时添加一个单元格。这是我的.m文件。请看看这个

#import "tableRecordings.h"

@interface tableRecordings ()

@end

@implementation tableRecordings

@synthesize arrayOriginal;
@synthesize arForTable;
UITableView* tableView;
NSArray *ar;
NSUInteger row;
- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    ar= [[NSArray alloc] init];
    tableView=[[UITableView alloc] init] ;
    NSDictionary *dTmp=[[NSDictionary alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"data" ofType:@"plist"]];
    self.arrayOriginal=[dTmp valueForKey:@"Objects"];

    self.arForTable=[[NSMutableArray alloc] init];

    [self.arForTable addObjectsFromArray:self.arrayOriginal];}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [self.arForTable count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
       cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ;
    }

    cell.textLabel.text=[[self.arForTable objectAtIndex:indexPath.row] valueForKey:@"name"];

    [cell setIndentationLevel:[[[self.arForTable objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]];

    return cell;
}

#pragma mark - Table view delegate


- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    self.tableView=tableView;
    NSDictionary *d=[self.arForTable objectAtIndex:indexPath.row];
    if([d valueForKey:@"Objects"]) {
        ar=[d valueForKey:@"Objects"];
           row=indexPath.row;
        BOOL isAlreadyInserted=NO;

        for(NSDictionary *dInner in ar ){
            NSInteger index=[self.arForTable indexOfObjectIdenticalTo:dInner];
            isAlreadyInserted=(index>0 && index!=NSIntegerMax);
            if(isAlreadyInserted) break;
        }

        if(isAlreadyInserted) {
            [self miniMizeThisRows:ar];
            [tableView cellForRowAtIndexPath:indexPath].textColor=[UIColor blackColor];

        } else {
            [tableView cellForRowAtIndexPath:indexPath].textColor=[UIColor blueColor];
            NSUInteger count=indexPath.row+1;
            NSMutableArray *arCells=[NSMutableArray array];
            for(NSDictionary *dInner in ar ) {
                [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
                [self.arForTable insertObject:dInner atIndex:count++];
            }
            [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationAutomatic];
        }
    }
    else if ([d valueForKey:@"name"]) {
        if ([[d valueForKey:@"name"] isEqualToString:@"[+]"]){


            UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Insert An Activity" message:@"Put Activity Here" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
            alert.alertViewStyle = UIAlertViewStylePlainTextInput;
            [alert show];
            [alert release];
        }

    }

}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
   // [tableView insertRowsAtIndexPaths:<#(NSArray *)#> withRowAnimation:<#(UITableViewRowAnimation)#>];
}
-(void)miniMizeThisRows:(NSArray*)ar{

    for(NSDictionary *dInner in ar ) {
        NSUInteger indexToRemove=[self.arForTable indexOfObjectIdenticalTo:dInner];
        NSArray *arInner=[dInner valueForKey:@"Objects"];
        if(arInner && [arInner count]>0){
            [self miniMizeThisRows:arInner];
        }

        if([self.arForTable indexOfObjectIdenticalTo:dInner]!=NSNotFound) {
            [self.arForTable removeObjectIdenticalTo:dInner];
            [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:
                                                    [NSIndexPath indexPathForRow:indexToRemove inSection:0]
                                                    ]
                                  withRowAnimation:UITableViewRowAnimationRight];
        }
    }
}


- (void)viewDidUnload
{
    [super viewDidUnload];
}


- (void)dealloc {

    [super dealloc];
}
@end

Answer 1

嗯，你只需要改变tableview的一些属性

关于编辑点击事件，将您的桌面视图设置为编辑模式

[super setEditing：YES animated：YES]; [self.mainTableView setEditing：YES animated：YES];
启用受尊重的单元格或部分的编辑模式

- （BOOL）tableView：（UITableView *）tableView canEditRowAtIndexPath：（NSIndexPath *）indexPath { //如果您不希望指定的项目可编辑，请返回NO if（indexPath.section == 0）{ if（indexPath.row == 0）{ 返回NO;
} } returnYES;
}

3.配置编辑模式 - UI控件：

if ([self.tableView isEditing]) {
  // If the tableView is already in edit mode, turn it off. Also change the title of the       button to reflect the intended verb (‘Edit’, in this case).
   [self.tableViewsetEditing:NOanimated:YES];
   [self.editButtonsetTitle:@"Edit"forState:UIControlStateNormal];
} else {
   [self.editButtonsetTitle:@"Done"forState:UIControlStateNormal];

   // Turn on edit mode

   [self.tableViewsetEditing:YESanimated:YES];
}

4.配置编辑模式 - TableView：

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
// Get the managedObjectContext from the AppDelegate (for use in CoreData Applications)
AppDelegate *appdelegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *context = appdelegate.managedObjectContext;
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source

   YourObject *object = [self.dataSourceArray objectAtIndex:indexPath.row];
   [self.dataSourceArray removeObjectAtIndex:indexPath.row];
   // You might want to delete the object from your Data Store if you’re using CoreData
   [context deleteObject:pairToDelete];
   NSError *error;
   [context save:&error];
   // Animate the deletion
   [tableView deleteRowsAtIndexPaths:[NSArrayarrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];

   // Additional code to configure the Edit Button, if any
   if (self.dataSourceArray.count == 0) {
       self.editButton.enabled = NO;
       self.editButton.titleLabel.text = @”Edit”;
   }
} else if (editingStyle == UITableViewCellEditingStyleInsert) {
   // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
   YourObject *newObject = [NSEntityDescription insertNewObjectForEntityForName:@"Header" inManagedObjectContext:context];
   newObject.value = @”value”;
   [context save:&error];
   [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]withRowAnimation:UITableViewRowAnimationFade];
   if (self.dataSourceArray.count > 0) {
      self.editButton.enabled = YES;
   }
}

}

这会在表格视图中添加新行

要更新.plist文件，您需要编写代码以更新此方法中的plist文件。

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

根据UITableViewCellEditingStyle，即插入或删除，您可以更新您的plist。

以下是向plist添加新记录的教程 http://www.theappcodeblog.com/2011/05/30/property-list-tutorial-using-plist-to-store-user-data/

如何使用.plist文件将单元格插入到我的列表中

1 个答案: