小编Kaz*_*zmi的帖子

有没有办法完全删除分隔UISegmentedControl中两个段的线？

设置segmentedControlStyle没有帮助.

我正在尝试使用'StubProvider'和'StubAuthenticator'编写同步适配器,我遵循了官方指南,我的代码运行没有任何错误,但'onPerformSync()'没有被调用,我尝试了一切但没有用.

我的完整项目可以从https://www.dropbox.com/s/48bgj3wweehaieu/MyApplication.zip?dl=0下载

这是我正在使用的类:

类MainActivity

public class MainActivity extends FragmentActivity implements View.OnClickListener {

    // Constants
    // The authority for the sync adapter's content provider
    public static final String AUTHORITY = "com.syncadaptertest.StubProvider";
    // An account type, in the form of a domain name
    public static final String ACCOUNT_TYPE = "com.syncadaptertest";
    // The account name
    public static final String ACCOUNT = "dummyaccount";
    // Instance fields
    Account mAccount;

    private ImageButton mRefreshBtn = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mRefreshBtn …

由于某种原因,发送和取消按钮没有出现,我甚至在appdelegate中的应用程序开始时粘贴了以下代码,只是当应用程序启动但仍无法正常工作时.任何人都可以帮忙,谢谢

mailController = [[MFMailComposeViewController alloc] init];
        mailController.mailComposeDelegate = self;
        [mailController setToRecipients:[strToEmailAddresses componentsSeparatedByString:@","]];
        [mailController setSubject:@"An Invite from MyGuide"];
        [mailController setMessageBody:@"Join me and your other friends now for free." isHTML:NO];

        if(mailController == nil)
            NSLog(@"Nil");
        else
            [self presentModalViewController:mailController animated:YES];

我试图在多个表中插入值(准确地说是25),我能够在所有表中插入记录,除了一个,这是因为一个属性,如果我删除该属性,它开始保存数据到表中但是当我添加该属性并尝试设置其值时,它以EXC_BAD_ACCESS终止.

我尝试更改属性的名称,甚至表格,但没有工作.下面是我的代码::

Ashes *ashesObj = (Ashes *)[NSEntityDescription insertNewObjectForEntityForName:@"Ashes" inManagedObjectContext:managedObjectContext];

[ashesObj setAshes_id:@""];
[ashesObj setArrangement_id:@"34"];
[ashesObj setCasket_order_date:@""];
[ashesObj setCasket_model:@""];
[ashesObj setCasket_supplier:@""];
//[ashesObj setAshes_address:@"N/A"];    (This one is causing problem)
[ashesObj setPostal_code:@"N/A"];
[ashesObj setName_client:@""];
[ashesObj setTelephone:@""];
[ashesObj setEmail:@""];

    NSError *error;

if (![managedObjectContext save:&error])
{
    NSLog(@"Problem saving: %@", [error localizedDescription]);
}