Question

我怎么能够从控制人员那里获得一系列的UIT延伸区?

EDIT:我不想将案文领域硬化成一个阵列。我实际上想从该代表的召集人那里获得所有领域的代表名单。

Answer 1

Recursive implementation to search all subviews subviews: (this way you catch textfields embedded in uiscrollview, etc)

-(NSArray*)findAllTextFieldsInView:(UIView*)view{
    NSMutableArray* textfieldarray = [[[NSMutableArray alloc] init] autorelease];
    for(id x in [view subviews]){
        if([x isKindOfClass:[UITextField class]])
            [textfieldarray addObject:x];

        if([x respondsToSelector:@selector(subviews)]){
            // if it has subviews, loop through those, too
            [textfieldarray addObjectsFromArray:[self findAllTextFieldsInView:x]];
        }
    }
    return textfieldarray;
}

-(void)myMethod{
   NSArray* allTextFields = [self findAllTextFieldsInView:[self view]];
   // ...
 }

Answer 2

如果你知道需要<条码>。 NSArray 包含所有UIText Field的代码,然后是为什么不添加到一个阵列中?

NSMutableArray *textFields = [[NSMutableArray alloc] init];

UITextField *textField = [[UITextField alloc] initWithFrame:myFrame];

[textFields addObject:textField]; // <- repeat for each UITextField

如果你使用刀子,则使用<代码>。缩略语

@property (nonatomic, retain) IBOutletCollection(UITextField) NSArray *textFields;

然后将所有<代码>UIText Field连接到该阵列。

Answer 3

- 采用以下代码,以获取包含所有以观点表述的统法特领域的文本价值:

   NSMutableArray *addressArray=[[NSMutableArray alloc] init];

   for(id aSubView in [self.view subviews])
   {
           if([aSubView isKindOfClass:[UITextField class]])
           {
                  UITextField *textField=(UITextField*)aSubView;
                  [addressArray addObject:textField.text];
           }
   }
   NSLog(@"%@", addressArray);

Answer 4

extension UIView 
{
   class func getAllSubviewsOfType<T: UIView>(view: UIView) -> [T] 
   {
       return view.subviews.flatMap { subView -> [T] in
       var result = UIView.getAllSubviewsOfType(view: subView) as [T]
       if let view = subView as? T {
           result.append(view)
       }
       return result
     }
   }

   func getAllSubviewsWithType<T: UIView>() -> [T] {
       return UIView.getAllSubviewsOfType(view: self.view) as [T]
   }
}

如何使用文本领域:

let textFields = self.view.getAllSubviewsWithType() as [UITextField]

Answer 5

你们可以通过控制者的观点表。

参看<><><>>>>>>>。

NSMutableArray *arrOfTextFields = [NSMutableArray array];
for (id subView in self.view.subviews)
{
    if ([subView isKindOfClass:[UITextField class]])
       [arrOfTextFields addObject:subView]; 
}

Answer 6

http://www.ohchr.org。无全球变量的回收(时间期限)

-(NSArray*)performUIElementSearchForClass:(Class)targetClass onView:(UIView*)root{

    NSMutableArray *searchCollection = [[[NSMutableArray alloc] init] autorelease];

    for(UIView *subview in root.subviews){

        if ([subView isKindOfClass:targetClass])  
            [searchCollection addObject:subview];

        if(subview.subviews.count > 0)
            [searchCollection addObjectsFromArray:[self performUIElementSearchForClass:targetClass onView:subview]];

    }

    return searchCollection;
}

友情链接