iPhone plist向数组添加新字符串

我正在用plist文件中的值填充选择器。 plist的格式如下所示

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>type</key>
    <array>
        <string>AAAA</string>
        <string>BBBBB</string>
        <string>CCCCC</string>
    </array>
</dict>
</plist>

在中调用self.typeValues，如下所示

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return [self.typeValues count];

}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    return [self.typeValues objectAtIndex:row];
}

但是，除此之外，我还添加了新的modalViewcontroller来为picker添加更多的值。 使用modalviewcontroller中的textField.text

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *path = [NSString stringWithFormat:@"%@/typecategory.plist",  documentsDirectory];
NSLog(@"path: %@", path);

NSDictionary *dictionary = [[NSDictionary alloc] initWithContentsOfFile:path];
//self.typeCategorySettings = dictionary;
//[dictionary release];

NSArray *typeComponents = [dictionary allKeys];
NSArray *sorted = [typeComponents sortedArrayUsingSelector:@selector(compare:)];
//self.typeCategory = sorted;

NSString *selectedTypeCategory = [sorted objectAtIndex:0];
NSMutableArray *array = [dictionary objectForKey:selectedTypeCategory];
NSString *plistt = textField.text;
NSLog(@"path: %@", plistt);
[array addObject:plistt];
[array writeToFile:path atomically:YES];

上述方法的目的是在单个数组中添加“n”个新行/字符串项。 如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>type</key>
    <array>
        <string>AAAA</string>
        <string>BBBBB</string>
        <string>CCCCC</string>
                <string>DDDDD</string>

               <string>NNNNN</string>  
    </array>
</dict>
</plist>

类型
AAAA
BBBBB
CCCCC
DDD
nnnn

使用模拟器和设备进行测试。但向现有数组中添加新字符串不会提交到plist文件

控制台报告如下：

数据文件：文件打开错误： /var/mobile/Library/Keyboard/en_GB-dynamic-text.dat， （拒绝许可）2011-03-03 22:49:05.028 TesApp[1562:307]路径： /var/mobile/Applications/05074277-7E4D-4BC0-9CFA-XXXXXXXX/Documents/typecategory.plist 2011-03-03 22:49:05.031 TesApp[1562:307]路径：ddd

有什么建议可以解决向数组中添加字符串的问题吗。。。以及任何简单的解决方案为选择器。选项在运行时添加值。来自核心数据或plist

非常感谢您的帮助

关于

---

Devaski。

解决了在上述

plist

结构上运行时插入新记录的问题

步骤1:头文件声明

   NSMutableDictionary *typeCategorySettings;
   NSArray  *typeCategory;
   NSMutableArray *typeValues;

步骤2:将新记录从文本字段保存/写入plist文件。。最后一行之前有一条记录

   NSError *error;
   NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
   NSString *documentsDirectory = [paths objectAtIndex:0];

   NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"typecategory.plist"];
   NSFileManager *fileManager = [NSFileManager defaultManager];

if (![fileManager fileExistsAtPath:filePath]) //4
{
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"typecategory" ofType:@"plist"]; //5

    [fileManager copyItemAtPath:bundle toPath:filePath error:&error]; //6
}


    NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:filePath];
    self.typeCategorySettings = dictionary;
    NSLog(@"Dictionary Read%@", self.typeCategorySettings);
    //[dictionary release];

    NSArray *typeComponents = [self.typeCategorySettings allKeys];
    NSMutableArray *sorted = [typeComponents sortedArrayUsingSelector:@selector(compare:)];
    self.typeCategory = sorted;
    NSLog(@"Array Read%@", self.typeCategory);

    NSString *selectedTypeCategory = [self.typeCategory objectAtIndex:0];
    NSMutableArray *array = [typeCategorySettings objectForKey:selectedTypeCategory];
    self.typeValues = array;
    NSLog(@"Values Read%@", self.typeValues);

            NSString *test;
    test = textField.text;
    [array insertObject:test atIndex:([self.typeValues count]-1)];
    [dictionary setObject:array forKey:@"type"]; 
    [dictionary writeToFile:filePath atomically:YES];
    NSLog(@"Written Read%@", dictionary);` 

步骤3:从Plist读取数组

 NSError *error;

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *plistPath = [documentsDirectory stringByAppendingPathComponent:@"typecategory.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];

if (![fileManager fileExistsAtPath:plistPath]) //4
{
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"typecategory" ofType:@"plist"]; //5

    [fileManager copyItemAtPath:bundle toPath:plistPath error:&error]; //6
}

//NSBundle *bundle = [NSBundle mainBundle];
//NSString *plistPath = [bundle pathForResource:@"typecategory" ofType:@"plist"];
NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
self.typeCategorySettings = dictionary;

NSArray *typeComponents = [self.typeCategorySettings allKeys];
NSArray *sorted = [typeComponents sortedArrayUsingSelector:@selector(compare:)];
self.typeCategory = sorted;

NSString *selectedTypeCategory = [self.typeCategory objectAtIndex:0];
NSMutableArray *array = [typeCategorySettings objectForKey:selectedTypeCategory];
self.typeValues = array;

---

解决了在上述

plist

结构上运行时插入新记录的问题

步骤1:头文件声明

   NSMutableDictionary *typeCategorySettings;
   NSArray  *typeCategory;
   NSMutableArray *typeValues;

步骤2:将新记录从文本字段保存/写入plist文件。。最后一行之前有一条记录

   NSError *error;
   NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
   NSString *documentsDirectory = [paths objectAtIndex:0];

   NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"typecategory.plist"];
   NSFileManager *fileManager = [NSFileManager defaultManager];

if (![fileManager fileExistsAtPath:filePath]) //4
{
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"typecategory" ofType:@"plist"]; //5

    [fileManager copyItemAtPath:bundle toPath:filePath error:&error]; //6
}


    NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:filePath];
    self.typeCategorySettings = dictionary;
    NSLog(@"Dictionary Read%@", self.typeCategorySettings);
    //[dictionary release];

    NSArray *typeComponents = [self.typeCategorySettings allKeys];
    NSMutableArray *sorted = [typeComponents sortedArrayUsingSelector:@selector(compare:)];
    self.typeCategory = sorted;
    NSLog(@"Array Read%@", self.typeCategory);

    NSString *selectedTypeCategory = [self.typeCategory objectAtIndex:0];
    NSMutableArray *array = [typeCategorySettings objectForKey:selectedTypeCategory];
    self.typeValues = array;
    NSLog(@"Values Read%@", self.typeValues);

            NSString *test;
    test = textField.text;
    [array insertObject:test atIndex:([self.typeValues count]-1)];
    [dictionary setObject:array forKey:@"type"]; 
    [dictionary writeToFile:filePath atomically:YES];
    NSLog(@"Written Read%@", dictionary);` 

步骤3:从Plist读取数组

 NSError *error;

NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *plistPath = [documentsDirectory stringByAppendingPathComponent:@"typecategory.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];

if (![fileManager fileExistsAtPath:plistPath]) //4
{
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"typecategory" ofType:@"plist"]; //5

    [fileManager copyItemAtPath:bundle toPath:plistPath error:&error]; //6
}

//NSBundle *bundle = [NSBundle mainBundle];
//NSString *plistPath = [bundle pathForResource:@"typecategory" ofType:@"plist"];
NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
self.typeCategorySettings = dictionary;

NSArray *typeComponents = [self.typeCategorySettings allKeys];
NSArray *sorted = [typeComponents sortedArrayUsingSelector:@selector(compare:)];
self.typeCategory = sorted;

NSString *selectedTypeCategory = [self.typeCategory objectAtIndex:0];
NSMutableArray *array = [typeCategorySettings objectForKey:selectedTypeCategory];
self.typeValues = array;

---

我建议您参考此链接：您可以在plist上找到完整的解决方案。我建议您参考此链接：您可以在plist上找到完整的解决方案。