如何在目标c中查询plist

Question

有没有办法过滤或查询plist中的数据。例如，我想要所有具有Type ='People'

的对象

Answer 1

如果您将PList加载到NSArray中，则可以使用filteredArrayUsingPredicate:和NSPredicate来执行过滤。例如：

NSBundle* bundle = [NSBundle mainBundle];
NSString* path = [bundle pathForResource:@"data" ofType:@"plist"];
NSArray *array = [NSArray arrayWithContentsOfFile:...];
NSString *type = @"People";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"Type == %@", type];
[array filteredArrayUsingPredicate:predicate];

Answer 2

您可以将plist加载到字典中，然后获取所需的所有值：

NSDictionary* dict = [NSDictionary dictionaryWithContentsOfFile: @"someplist.plist"];