CODEWITHSUNDEEP
iphoneobjective-ccocoa-touchcore-animation
Eric
Eric

Reputation: 16941

CALayer hides its sublayer

I am trying to add a CALayer as a sublayer of another CALayer. However only the parent layer gets displayed. Here's my code: 

//display a green square:
CALayer *shipContainer = [CALayer layer];
shipContainer.bounds = CGRectMake(0,0,200,200);
shipContainer.position = CGPointMake(600,500);
shipContainer.borderColor = [UIColor greenColor].CGColor;
shipContainer.borderWidth = 3;

//display a red dot inside the square:    
CALayer *ship1 = [CALayer layer];
ship1.bounds = CGRectMake(0,0,20,20);
ship1.position = CGPointMake(600,500);
ship1.cornerRadius = 10;
ship1.backgroundColor = [UIColor redColor].CGColor;
[shipContainer addSublayer:ship1];

I then call [self.view.layer addSublayer:shipContainer]; but only the green square is displayed. Any thoughts?

Upvotes: 1

Views: 1164

Answers (1)

Ravin
Ravin

Reputation: 8564

As per documentation :

Position

The position property is a CGPoint that specifies the position of the layer relative to its superlayer, and is expressed in the superlayer's coordinate system.

so you need to change 

ship1.position = CGPointMake(600,500);

so that ship1 can come in visible area. As superlayer has 200,200 as its bounds you need to make position's x and y less then these values.

Upvotes: 1

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