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View Binding causes "The specified child already has a parent"


By : sky44
Date : August 02 2020, 04:00 AM
With these it helps I felt stupid when I realized what the problem was. When I converted the Activity to use View Binding, I didn't realize the layout had a View with an id of root.
Changing the ID of that View solved the problem for me. If you're using View Binding, you cannot use root as the ID for any View in your layout, or you will get this unhelpful error.
code :


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Backbone.js - access all child views inside a parent "collection" view


By : Evandro
Date : March 29 2020, 07:55 AM
Any of those help Go for the first one. You want to keep a reference to a CollectionView's child views anyway, for proper removal and reinitialization. The problem with the latter pattern is if the model is represented by several collection views, all of those collection views will be triggered unnecessarily.

Calling ".parent" on a newly instantiated associated "child" object returns "nil"


By : Daniel Malau
Date : March 29 2020, 07:55 AM
help you fix your problem , So what about:
code :
p = r.privileges.build(role: r)

With Rails 3 view inheritance, is it possible to call "super" within a child view, but send the parent variabl


By : PeeNut
Date : March 29 2020, 07:55 AM
around this issue You can use a presenter for this. Adding "view" logic to a model is better done through this type of object. Take a look at draper.
Once the resource is decorated, you can just call visible_attributes or whatever. Of course, you would need to implement that method for each resource.

Adding view causes "Child already has parent" error


By : Aik Koon Wee
Date : March 29 2020, 07:55 AM
it helps some times I'm making a gallery app and adding image buttons dynamically using the code below, this works on one of my devices but on the other I get a , You might need some extra handling:
code :
View v = thumbs.get(x);
ViewGroup p = (ViewGroup)v.getParent();
p.removeView(v);
imgHolder.addView(v);

Reusing a View within a ListView row - "The specified child already has a parent" Exception


By : Alexander Hoffmann
Date : March 29 2020, 07:55 AM
I wish this help you I have a ListView whose rows display data held within a Message Class. The view for each row is built when the Message Class is initialized and stored as a ViewGroup. I chose to do this as building the ViewGroup within the ListView adapters getView method was slow and caused the ListView to stutter when scrolled. , ListView is caching Views, so when you do this:
code :
rootView.addView(message.getBody());
ViewGroup vg = message.getBody();
ViewParent parent = vg.getParent();
if (parent != null && parent instanceOf ViewGroup) {
    // if this ViewGroup already has a parent, unlink it from that parent
    //  before adding it to the new one 
    ((ViewGroup)parent).removeView(vg);
}
rootView.addView(vg);
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