iOS 动态创建 UILabels

Question

有时我希望我的视图包含 5 个 UILabel，有时是 3 个，有时是 n。

UILabels 的数量取决于从网站获取的数据。

Answer 1

您必须用代码而不是界面生成器来制作它们

 for (int i = 0; i < n; i++)
 {
    UILabel *label =  [[UILabel alloc] initWithFrame: CGRectMake(/* where you want it*/)];
    label.text = @"text"; //etc...
    [self.view addSubview:label];
    [label release];
 }

Answer 2

通用问题的通用答案：

while (labelsToDisplay) 
{
    UILabel *label = [[UILabel alloc] initWithFrame:aFrame];
    [label setText:@"someText"];
    [aViewContainer addSubview:label];
    [label release];
}

Answer 3

   NSArray *dataArray;
   float xCoordinate=10.0,yCoordinate=10.0,width=100,height=40; 
   float ver_space=20.0;
   for (int i = 0; i <dataArray.count; i++)
   {
       UILabel *label =  [[UILabel alloc] initWithFrame: CGRectMake(xCoordinate,yCoordinate,width,height)];
       label.text = [dataArray objectAtIndex:i];
       [self.view addSubview:label];

       yCoordinate=yCoordinate+height+ver_space;
   }

Answer 4

 UILabel *lbl=[[UILabel alloc]initWithFrame:CGRectMake(125, 12,170,20)];
            lbl.text=@"IOS";
            lbl.textAlignment = NSTextAlignmentCenter;
            lbl.textColor = [UIColor whiteColor];
            lbl.font = [UIFont fontWithName:@"AlNile" size:10.0];
            lbl.backgroundColor=[[UIColor redColor]colorWithAlphaComponent:0.5f];
            lbl.layer.borderColor=[UIColor blackColor].CGColor;
            lbl.layer.borderWidth=1.0f;
            lbl.layer.cornerRadius = 6.0f;
            [self.view addSubview:lbl];

Answer 5

UILabel *lblTitle=[[UILabel alloc]init];
[lblTitle setFrame:CGRectMake(0, 0, 100, 100)];
[lblTitle setText:@"MAK"];
[lblTitle setBackgroundColor:[UIColor blueColor]];
[self.view addSubview:lblTitle];

- 这里UILable将被动态创建。
- 但属性的设置会有所不同。

Answer 6

创建一个 TextView 以显示标签上的文本，并创建一个 NSArray 以包含数据。

欲了解更多信息：

http://developer .apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSArray_Class/NSArray.html

http://developer.apple。 com/library/ios/documentation/uikit/reference/UITextView_Class/Reference/UITextView.html