iOS应用程序：不兼容的指针类型

在我的iOS应用程序中，我试图做到以下几点：在ViewController中有几个文本字段和一个保存按钮。当用户点击Save按钮时，yearTextField的文本必须存储在核心数据属性（todoYear:int32）中。 这是我的保存方法的代码：

- (IBAction)SaveButtonAction:(id)sender {


    AppDelegate* appDelegate = [AppDelegate sharedAppDelegate];
    NSManagedObjectContext* context = appDelegate.managedObjectContext;

    NSManagedObject *favoriteThing = [NSEntityDescription insertNewObjectForEntityForName:@"FavoriteThing" inManagedObjectContext:context];
    NSString *todoText = ToDoTextField.text;
    NSNumber *todoYear = [yearTextField.text intValue];
    NSNumber *todoMonth = [monthTextField.text intValue];
    NSNumber *todoDay = [dayTextField.text intValue];
    NSNumber *todoHour = [hourTextField.text intValue];
    NSNumber *todoMinute = [minuteTextField.text intValue];        
    NSString *todoUrgent = urgentTextField.text;
    NSString *todoColor = colorTextField.text;


    [favoriteThing setValue:todoText forKey:@"thingName"];
    [favoriteThing setValue:[NSNumber numberWithInt:0] forKey:@"displayOrder"];
    [favoriteThing setValue:todoYear forKey:@"todoYear"];
    [favoriteThing setValue:todoMonth forKey:@"todoMonth"];
    [favoriteThing setValue:todoDay forKey:@"todoDay"];
    [favoriteThing setValue:todoHour forKey:@"todoHour"];
    [favoriteThing setValue:todoMinute forKey:@"todoMinute"];
    [favoriteThing setValue:todoUrgent forKey:@"urgent"];
    [favoriteThing setValue:todoColor forKey:@"color"];             

    NSError *error;
    if(! [context save:&error])
    {
        NSLog(@"Whoopw,couldn't save:%@", [error localizedDescription]);
    }
}

这是个例外：

self    AddToDoViewController * 0x16578680  0x16578680
favoriteThing   FavoriteThing_FavoriteThing_ *  0x1650da90  0x1650da90
todoText    __NSCFString *  @"h"    0x1659f2b0
todoColor   __NSCFString *  @"Black"    0x16542070
todoUrgent  __NSCFString *  @"Not urgent"   0x165139e0
todoYear    NSNumber *  0x7dd   0x000007dd
todoMinute  NSNumber *  0x25    0x00000025
urgentTextField UITextField *   0x165bc2d0  0x165bc2d0
colorTextField  UITextField *   0x165b2de0  0x165b2de0
minuteTextField UITextField *   0x165b8380  0x165b8380

“todoText”、“todoColor”、“todourgent”的属性正确，读取“todoYear”属性的值时出现错误。

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我不知道如何将“todoYear”值以正确的方式放入正确的接受范围。提前感谢。

使用

NSNumber

的

numberwhithint

方法：

NSNumber *todoYear = [NSNumber numberWithInt: [yearTextField.text intValue]];
NSNumber *todoMonth = [NSNumber numberWithInt: [monthTextField.text intValue]];
NSNumber *todoDay = [NSNumber numberWithInt: [dayTextField.text intValue]];
NSNumber *todoHour = [NSNumber numberWithInt: [hourTextField.text intValue]];
NSNumber *todoMinute = [NSNumber numberWithInt: [minuteTextField.text intValue]];

或者将这一切合并成一个

NSDate

NSString *dateString = [NSString stringWithFormat: @"%@-%@-%@ %@:%@:00 +0000",
    yearTextField.text, monthTextField.text, dayTextField.text,
    hourTextField.text, minuteTextField.text];
NSDate *todoDate = [NSDate dateWithString:dateString];

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谢谢@nhgrif，这就是方法，没有错误。我非常感谢。