iOS PickerView动态加载数据

将新的数据放入临时数组

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

[tmp addObject:[[NSString alloc] initWithCString:pigNames.c_str() encoding:NSUTF8StringEncoding]];

pickerData=tmp;

[picker reloadAllComponents];//重新加载数据

[tmp release];