我有一个 Plist，其中有许多 Array。在这些数组中是我正在读取的不同对象，但是我在编辑数组中的这些对象然后再次将数组保存回 Plist 文件时陷入困境。
我已经像这样读取文件了...
Array = [myArrays objectAtIndex:arrayCounter]; //This tells it which Array to load.
myObject = [Array objectAtIndex:0]; //This reads that object in the array. (This is what I want to edit.)
我想知道如何编辑该对象（它是一个字符串），然后将其保存回数组中，然后将该数组保存回存储它的 Plist 文件中。
提前致谢！
P.S - 如果需要，我愿意发布更多代码或信息。
【问题讨论】：
标签： iphone arrays object plist save
您不能将数据保存在应用程序的主包中，而必须像这样在文档目录中进行：
NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *plistFilePath = [documentsDirectory stringByAppendingPathComponent:@"Data.plist"];
if([[NSFileManager defaultManager] fileExistsAtPAth:plistFilePath])
{//plist already exits in doc dir so save content in it
NSMutableArray *data = [NSMutableArray arrayWithContentsOfFile:plistFilePath];
NSArray *arrValue = [data objectAtIndex:arrayCounter];
NSString *strValue = [arrValue objectAtIndex:0];
strValue = [strValue stringByAppending:@"hello"]; //change your value here
[[data objectAtIndex:arrayCounter] replaceObjectAtIndex:0 withObject:strValue]; //value replaced
[data writeToFile:plistFilePath atomically:YES];
}
else{ //firstly take content from plist and then write file document directory. it will be executed only once
NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"Data" ofType:@"plist"];
NSMutableArray *data = [NSMutableArray arrayWithContentsOfFile:plistPath];
NSArray *arrValue = [data objectAtIndex:arrayCounter];
NSString *strValue = [arrValue objectAtIndex:0];
strValue = [strValue stringByAppending:@"hello"]; //change your value here
[[data objectAtIndex:arrayCounter] replaceObjectAtIndex:0 withObject:strValue]; //value replaced
[data writeToFile:plistFilePath atomically:YES];
}
【讨论】：