核心数据不更新 [英] Core Data does not update

问题描述

这是我采取的步骤顺序：

This is the sequence of steps I have taken:

• 将资料载入表格检视


• 添加新数据


• 点击查看单元格的更多详细信息


• 加载详细信息


• / li>
  
• 按


• 返回表格视图


• 一切都很好


• 重新打开应用程序


• 没有更新

• Load data into table view
• add new data
• click to see more details on cells
• load the details
• edit details
• press save
• back to table view
• everything is fine
• re-open the application
• nothing updated

，我没有解决它。不，我也与CoreData堆叠。

I had this problem also with sqlite, and I didn't fix it. No, I am also stacked with CoreData.

-(IBAction)save:(id)sender
{
    [passwords setValue:nametxt.text forKey:@"name"];

    [passwords setValue:usernametxt.text forKey:@"username"];


}

-(void) viewWillAppear:(BOOL)animated
{
    self.title = passwords.name;

    nametxt.text = passwords.name;
    usernametxt.text = passwords.username;

}

推荐答案

调用 NSManagedObjectContext 的 save 方法。

NSError *error = nil;
[managedObjectContext save:&error];
if (error) {
//inform user
}

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