Android get layout parent id

android, layout, parent

Solution

I would like to know what is the difference between View and ViewParent ?

A `View` is a class and a `ViewParent` is an interface.

Although many of the common layout classes implement the `ViewParent` interface it isn't guaranteed.

The problem you're having is that the `myImageView.getParent()` is returning a `ViewParent` which doesn't directly expose a `getId()` method.

As others have said, casting the `ViewParent` to a `View` using...

((View) myImageView.getParent()).getId();

...should work at compile time but be aware of the following...

- If the parent `View` doesn't implement the `ViewParent` interface then the cast will fail.

- The parent `View` must have a resource id defined in the layout file as (for example) `android:id=@+id/myParentViewId` or the call to `getId` will return `null`

Problem

Original source