设置联系人的通讯簿图像似乎不起作用 [英] Setting Address Book image for a contact doesn't seem to work
问题描述
我正在尝试使用以下代码设置联系人图片。我没有看到任何错误,并且图像没有保存到通讯录中的联系人条目。请帮忙!我必须做错事...
I'm trying to set the contact image with the code below. I am not seeing any errors, and the image is not saved to the contact entry in the address book. Please help! I must be doing something wrong...
- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
{
[abcontroller setDisplayedPerson:person];
UIImage *im = [UIImage imageNamed:@"image1.jpg"];
NSData *dataRef = UIImagePNGRepresentation(im);
CFErrorRef error;
ABAddressBookRef addressBook = ABAddressBookCreate();
NSLog(@"Error:",error);
if (ABPersonSetImageData(person, (CFDataRef)dataRef, &error))
{
NSLog(@"Set contact photo %@", error);
if (ABAddressBookHasUnsavedChanges(addressBook))
{
NSLog(@"Changes made to address book");
}
else {
NSLog(@"No changes made to address book");
}
if (ABAddressBookSave(addressBook, &error))
{
NSLog(@"Saved");
}
else {
NSLog(@"Not saved");
}
}
else {
NSLog(@"Error saving contact photo %@", error);
}
ABAddressBookSave(addressBook, &error);
[self dismissModalViewControllerAnimated:YES];
return NO;
}
这是我的输出日志:
2010-01-17 21:58:35.465 Error:
2010-01-17 21:58:35.504 Set contact photo <ABPeoplePickerNavigationController: 0x19e9b0>
2010-01-17 21:58:43.497 No changes made to address book
2010-01-17 21:58:44.724 Saved
我不知道为什么错误对象被记录为ABPeoplePickerNavigationController对象?
I'm not sure why the error object is logging as an ABPeoplePickerNavigationController object?
推荐答案
关于我不知道为什么错误对象作为ABPeoplePickerNavigationController对象记录? - 因为您没有正确初始化错误
这里:
Regarding I'm not sure why the error object is logging as an ABPeoplePickerNavigationController object? -- because you're not properly initialising the error
here:
CFErrorRef error;
在此分配 nil
,否则将一个随机(或更准确地说,一些以前的内存)值,附带地指向一个 ABPeoplePickerNavigationController
对象。
Assign nil
here, or it will have a random (or more precisely, some previous memory) value, incidentally pointing to an ABPeoplePickerNavigationController
object.
关于优点:您确定您已经传递给您的方法的人员引用
在地址簿的上下文中有效吗?我会尝试首先使用诸如 ABAddressBookGetPersonWithRecordID
的函数,而不是传递 ABPersonRef
,并期望它们有效对于不同的地址簿参考。
Regarding the merits: are you sure the reference to person
you have passed to your method is valid in the context of the address book? I would try to use a function such as ABAddressBookGetPersonWithRecordID
first, instead of passing ABPersonRef
s around and expecting them to be valid for different address book references.
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