How can I get the index of sub UIView in the paren

问题:

I want to use exchangeSubviewAtIndex: withSubviewAtIndex: method.

but how can i get the indexes of those views? i already have their pointers, so I thought there might be a method like.

[parentView indexOfSubview:subview];

but I couldn't find that kind of thing in Xcode documents library.

please help me! thank you in advance.

回答1:

This is how you get it:

[parentView.subviews indexOfObject:subview];

回答2:

You can find out the index of your object as you find in NSArray, because view.subviews return an array

NSUInteger index1=[parentView.subviews indexOfSubview:subview1];
NSUInteger index2=[parentView.subviews indexOfSubview:subview2];

[parentView exchangeSubviewAtIndex:index1 withSubviewAtIndex:index2];

You can follow this link for more How to get UIView hierarchy index ??? (i.e. the depth in between the other subviews)

回答3:

[View.subviews indexOfObject:SubView];

回答4:

You can get array index using this.

[view.subViews indexOfObject:yourSubView]; 

And try to catch that index.

NSInteger index=[view.subViews indexOfObject:yourSubView]; 

Try this code might be helpful to you...