iphone - 想以编程方式将标签的位置更改为左上角

Question

我创建了一个标签，现在我想改变它在屏幕上的显示位置，那么我该如何以编程方式做到这一点？

当我第一次启动它时，我的屏幕看起来像这样。

但我想在它第一次打开时显示它。

Answer 1

将其从视图中移除。然后更改 UIlabel 的框架。然后将其添加到视图中。

[yourLabel removeFromSuperView];
temp.frame=CGRectMake(x,y,width,height);  //set the frame as you want
[self.view addSubView:yourLabel];

Answer 2

您应该修改标签的frame属性。它的类型CGRect：

struct CGRect {
   CGPoint origin;
   CGSize size;
};

要更改其位置，请更改origin点值。它对应于标签的左上角。

CGRect labelFrame = [label frame];
labelFrame.origin.x = 50; // set to whatever you want
labelFrame.origin.y = 100;
[label setFrame:labelFrame]; 

Answer 3

   //simply you change origin for label
 //it make animation for moving label in the view
    -(void)your_action
    {
    [UIView animateWithDuration:2
                              delay:1.0
                            options: UIViewAnimationCurveEaseOut
                         animations:^{
                             label.frame=CGRectMake(0, 0, width, height);
                         } 
                         completion:^(BOOL finished){
                             NSLog(@"Done!");
                         }];


    }

Answer 4

//此代码用于在视图中拖动标签，在视图中单击标签原点更改为触摸点

    -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{

        UITouch *myTouch = [touches anyObject];
        point = [myTouch locationInView:self.view];

        [UIView animateWithDuration:2.0 delay:0.0 options:UIViewAnimationCurveEaseOut
                         animations:^{
                             label.frame = CGRectMake(point.x, point.y,width, height);
                         }
                         completion:nil];
    }

//enable user interaction for label

Answer 5

你说你以编程方式创建标签，所以你必须像这样设置代码：

- (void)viewDidLoad
{
    [super viewDidLoad];

    yourlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 100, 100)];
    yourlabel.text = @"text";

    yourlabel.userInteractionEnabled = YES;
    [self.view addSubview:alabel];
}

这应该做的工作。