Question

我使用tableView使用tableView进行一些混淆设置来填充我正在使用此代码的数据大约2周，这似乎有效。

这是我的代码：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];

    if ([[[week objectAtIndex:indexPath.row] objectForKey:@"checkmark"]  isEqual:@"0"]) {
        [selectedCell setAccessoryType:UITableViewCellAccessoryCheckmark];
        [[week objectAtIndex:indexPath.row] setObject:@"1" forKey:@"checkmark"];
    }
    else {
        [selectedCell setAccessoryType:UITableViewCellAccessoryNone];
        [[week objectAtIndex:indexPath.row] setObject:@"0" forKey:@"checkmark"];
    }

    [[week objectAtIndex:indexPath.row] writeToFile:@"week.plist" atomically:YES];

    NSLog(@"%@, %@", selectedCell.textLabel.text,[[week objectAtIndex:indexPath.row] objectForKey:@"checkmark"]);
    NSLog(@"Array de week seleccionando %@", week);
}

在debbug区域似乎一切正常（这就是我使用nslogs的原因），我的问题是无法保存plist文件的更改，它似乎在某种缓存或类似的东西中保存

更新

我也试过这段代码：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];

    NSString *rootPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *plistPath = [rootPath stringByAppendingPathComponent:@"week.plist"];
    NSDictionary *plistDict = [NSDictionary dictionaryWithObjects:week forKeys:week];

    NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:plistDict
                                                                   format:NSPropertyListXMLFormat_v1_0
                                                         errorDescription:nil];

    if ([[[week objectAtIndex:indexPath.row] objectForKey:@"checkmark"]  isEqual:@"0"]) {
        [selectedCell setAccessoryType:UITableViewCellAccessoryCheckmark];
        NSString *uno = @"1";
        [[week objectAtIndex:indexPath.row] setObject:uno forKey:@"checkmark"];
    }
    else if ([[[week objectAtIndex:indexPath.row] objectForKey:@"checkmark"]  isEqual:@"1"]) {
        [selectedCell setAccessoryType:UITableViewCellAccessoryNone];
        NSString *cero = @"0";
        [plistData writeToFile:plistPath atomically:YES];
    }
    [[week objectAtIndex:indexPath.row] setObject:cero forKey:@"checkmarck"];
    NSLog(@"%@, %@", selectedCell.textLabel.text,[[week objectAtIndex:indexPath.row] objectForKey:@"checkmark"]);
    NSLog(@"Array de checkmarks %@", week);
}

我在调试区域得到了相同的结果：

2014-07-07 22:11:21.384 experiment table view[2264:60b] Thursday, 0
2014-07-07 22:11:21.385 experiment table view[2264:60b] Array de week seleccionando (
    {
    Name = Sunday;
    checkmarck = 0;
},
    {
    Name = Monday;
    checkmarck = 1;
},
    {
    Name = Tuesday;
    checkmarck = 0;
},
    {
    Name = Wednesday;
    checkmarck = 0;
},
    {
    Name = Thursday;
    checkmarck = 0;
},
    {
    Name = Friday;
    checkmarck = 1;
},
    {
    Name = Saturday;
    checkmarck = 0;
}
)

这与我得到的结果相同

Answer 1

如果Plist在捆绑中，则无法写入。＆＃39;在捆绑中＆＃39;表示您通过手动在XCODE中添加新文件来创建Plist。

您只能写入以编程方式创建的Plist。这样的Plist不在捆绑包中，而是在应用程序的文档目录中。 Plist的路径是

NSArray *paths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fileName = @"week.plist";
NSString *path = [NSString stringWithFormat:@"%@/%@", documentsDirectory, fileName];

Answer 2

感谢Sen我解决了这个问题，他的回答让我纠正了我的代码。

首先，我必须以编程方式创建pList：

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"week.plist"];

NSMutableArray *week = [[NSMutableArray  alloc]init];

//Here I add all the objects inside the Mutable Array

[week writeToFile:path atomically:YES];

然后通过在选择器上选择它来写入Plist：

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"week.plist"];
NSMutableArray *array = [[NSMutableArray alloc]initWithContentsOfFile:path];

UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];

if ([[[array objectAtIndex:indexPath.row] objectForKey:@"checkmark"]  isEqual:@"0"]) {
    [selectedCell setAccessoryType:UITableViewCellAccessoryCheckmark];
    [[array objectAtIndex:indexPath.row] setObject:@"1" forKey:@"checkmark"];
} else {
    [selectedCell setAccessoryType:UITableViewCellAccessoryNone];
    [[array objectAtIndex:indexPath.row] setObject:@"0" forKey:@"checkmark"];
}
[array writeToFile:path atomically:YES];
[tableView reloadData];
[self.navigationController pushViewController:self animated:YES];
}

谢谢，我希望这段代码可以帮助别人。

替换plist上的字符串

2 个答案: