根据名称访问通讯录中的联系人图像 [英] Access contact image from address book based on name

问题描述

Err，好几天以来，我一直在思考一种方法。我检索了所有联系人的姓名，并使用字典将其放置在数组中。

Err,I have been pulling my hair thinking about a way from quite a few days.I have retrieved all contacts names and placed in an array using dictionary.

我所拥有的是一个模型类，其中包含一个名称列表，现在我想在联系人列表中搜索名称的位置，具体取决于我可以检索所需的联系人图像。

What I have is a model class holding a list of names,now I want to search the location of name in contacts list,depending on which I can retrieve the required contact image.

最初用Google搜索并发现了一个与我的要求不太相似的未解决问题，可以浏览

Initially googled and found out an unanswered question not pretty much similar to my requirement,the same can be glanced here

我尝试了几种方法，以下是我实现的一种方法：

I tried several ways,the below is one way I have implemented:

编辑

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self loadReminders];

    ReminderClass *reminderToDisplay = [self.remindersArray objectAtIndex:indexPath.row];

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier];

    // Now create the cell to display the reminder data
    if (cell == nil) 
    {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCellIdentifier] autorelease];
        cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
        cell.textLabel.numberOfLines = 0;
        cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:17.0];
        cell.textLabel.adjustsFontSizeToFitWidth = YES;
    }

    tableView.backgroundColor = [UIColor clearColor];

    NSDateFormatter *dateFormat = [[[NSDateFormatter alloc]init]autorelease];
    [dateFormat setDateFormat:kDateFormat];
    NSDate *reminderDate = [dateFormat dateFromString:reminderToDisplay.Date]; 
    [dateFormat setDateFormat:kMinDateFormat]; 
    NSString *dateString = [dateFormat stringFromDate:reminderDate];

    NSString *valueString = [NSString stringWithFormat:@"%@'s %@",reminderToDisplay.Name,reminderToDisplay.Event];
    NSString *onString = [NSString stringWithFormat:@" on %@",dateString];
    NSString *reminderDetailsString = [valueString stringByAppendingString:onString];

    //Get the contact image based on name index from contact list
    ABAddressBookRef addressBook = ABAddressBookCreate( );
    CFStringRef reminderName = (CFStringRef)reminderToDisplay.Name;
    CFArrayRef allPeople = ABAddressBookCopyPeopleWithName(addressBook, reminderName);
    self.contactsList =[[[NSMutableArray alloc]init]autorelease];

    CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);
    for ( int i = 0; i < nPeople; i++ ) 
    { 
    ABRecordRef ref = CFArrayGetValueAtIndex(allPeople,i); 
    NSString *contactFirstNamePart = (NSString *)ABRecordCopyValue(ref,kABPersonFirstNameProperty);
    NSString *contactFirstName = [[[NSString alloc] initWithString:contactFirstNamePart]autorelease];
    NSString *contactLastNamePart = (NSString *)ABRecordCopyValue(ref, kABPersonLastNameProperty);

    if (contactLastNamePart == nil)
    {
        self.contactName = contactFirstName;
    }

    else
    {
        NSString *contactLastName = [[[NSString alloc] initWithString:contactLastNamePart]autorelease];
        NSString *contactLastNameString = [NSString stringWithFormat:@" %@",contactLastName]; 
        self.contactName = [contactFirstName stringByAppendingString:contactLastNameString]; 
        CFRelease(contactLastNamePart);
    }

    NSDictionary *contactsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:self.contactName, kContactName, [NSNumber numberWithInt:i], kContactIndex, nil];
    [self.contactsList addObject:contactsDictionary];
    CFRelease(contactFirstNamePart);
}

NSDictionary *contactsDictionary = [self.contactsList objectAtIndex:indexPath.row]; 
self.contactName = [contactsDictionary objectForKey:kContactName]; 
int addressIndex = [[contactsDictionary objectForKey:kContactIndex]integerValue];

ABRecordRef recordReference = CFArrayGetValueAtIndex(allPeople, addressIndex);
if (ABPersonHasImageData(recordReference))
{
    NSData *imageData = (NSData *)ABPersonCopyImageData(recordReference);
    self.reminderImage = [UIImage imageWithData:imageData];
    CFRelease(imageData);
}

CFRelease(allPeople);
CFRelease(addressBook);

    UIImage *notificationImage = reminderImage;

    if (notificationImage != nil) 
    {
        UIImageView *imageView=[[[UIImageView alloc] initWithFrame:CGRectMake(240, 3, 70, 63)]autorelease];
        imageView.backgroundColor=[UIColor clearColor];
        [imageView setImage:notificationImage];
        cell.accessoryView = imageView;
    }
    else
    {
        UIImageView *imageView=[[[UIImageView alloc] initWithFrame:CGRectMake(240, 3, 70, 63)]autorelease];
        imageView.backgroundColor=[UIColor clearColor];
        UIImage *defaultImage = [UIImage imageNamed:kDefaultImage];
        [imageView setImage:defaultImage];
        cell.accessoryView = imageView;
    }
    cell.textLabel.text = reminderDetailsString;
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    return cell;
}

错误访问错误屏幕截图

但是我无法完成所需的任务。任何人都可以指导我。

But I was unable to accomplish the required task.Can any one please guide me.

在此先谢谢大家：）

推荐答案

我正在共享我最近的一个应用程序中使用的示例代码片段。我已进行修改以满足您的要求，还请注意，我已经在记事本中对此进行了编辑，并且可能会出现一些拼写错误。（目前，我没有用Mac对其进行测试。.：P）
基本思想是填补viewDidLoad方法中的数据源，并使用该数据源更新tableView。希望这将是解决您的问题的投入。

I am sharing the sample code snippet I used in one of my recent app. I have modified to fit it ur requirements and also please note that I have edited this in notepad and may have some typo errors.(Currently I dnt have mac to test it..:P) Basic idea is to fill the datasource in viewDidLoad method and use that dataSource to update the tableView. Hope this will be an input to solve your problem.

viewDidLoad

contactsToBeAdded=[[NSMutableArray alloc] init];
ABAddressBookRef addressbook = ABAddressBookCreate();
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressbook);
CFIndex numPeople = ABAddressBookGetPersonCount(addressbook);
bool hasPhoneNumber = false;
for (int i=0; i < numPeople; i++) {
    hasPhoneNumber = false;
    ABRecordRef person = CFArrayGetValueAtIndex(allPeople, i);
    ABMutableMultiValueRef phonelist = ABRecordCopyValue(person, kABPersonPhoneProperty);
    CFIndex numPhones = ABMultiValueGetCount(phonelist);


    if(numPhones > 0){
        hasPhoneNumber = true;

    }
    if(hasPhoneNumber){
        NSString *firstName=(NSString *)ABRecordCopyValue(person, kABPersonFirstNameProperty);
        NSString *lastName=(NSString *)ABRecordCopyValue(person, kABPersonLastNameProperty);

        CFTypeRef ABphone = ABMultiValueCopyValueAtIndex(phonelist, 0);
        NSString *personPhone = (NSString *)ABphone;

        NSMutableDictionary *dictToAdd = [[[NSMutableDictionary alloc]init]autorelease];
        if(firstName != nil && firstName != NULL){
            [dictToAdd setObject:firstName forKey:@"firstName"];
            CFRelease(firstName);
        }
        else{
            [dictToAdd setObject:@"" forKey:@"firstName"];
        }
        if(lastName != nil && lastName != NULL){
            [dictToAdd setObject:lastName forKey:@"lastName"];
            CFRelease(lastName);
        }
        else{
            [dictToAdd setObject:@"" forKey:@"lastName"];
        }

        if(personPhone != nil && personPhone != NULL){
            [dictToAdd setObject:personPhone forKey:@"mobile"];
            CFRelease(ABphone);
        }
        else{
            [dictToAdd setObject:@"" forKey:@"mobile"];
        }

        //Get the first name and last name added to dict and combine it to full name
        NSString *firstName = [dictToAdd objectForKey:@"firstName"];
        NSString *lastName = [dictToAdd objectForKey:@"lastName"];
        NSString *fullName = [firstName stringByAppendingString:lastName]; 

        //Now check whether the full name is same as your reminderToDisplay.Name
        if(reminderToDisplay.Name isEqualToString:fullName )
        {
            CFDataRef imageData = ABPersonCopyImageData(person);
            UIImage *image = [UIImage imageWithData:(NSData *)imageData];
            if(image != nil && image != NULL){
                [dictToAdd setObject:image forKey:@"image"];
                CFRelease(imageData);
            }
            else{
                [dictToAdd setObject:[UIImage imageNamed:TEMP_IMG] forKey:@"image"];
            }
        }

        [contactsToBeAdded addObject:dictToAdd];
    }

    CFRelease(phonelist);
}
CFRelease(allPeople);
CFRelease(addressbook);

[self.tableView reloadData];

numberOfRowsInSection

return contactsToBeAdded.count;

cellForRowAtIndexPath

static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

if (cell == nil)
{
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]autorelease];

}

NSDictionary *contactToAdd;
//This way you can get the data added in viewDidLoad method
contactToAdd = [contactsToBeAdded objectAtIndex:indexPath.row];

NSString *fName = (NSString *)[contactToAdd objectForKey:@"firstName"];
NSString *lName = (NSString *)[contactToAdd objectForKey:@"lastName"];
UIImage *contactImg = (UIImage*)[contactToAdd objectForKey:@"image"];

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