Check if view element is added to layout or not programmatically
Solution 1
I think you can simply use
findViewById(your_view_id)
method: If its result is null the view does not exists, otherwise the view is present
Solution 2
If you creating view via inflater, you can check his parent
if(view.getParent() != null) {...}
Solution 3
Sorry for late reply but you may try this alternative:
use container.getChildCount();
before adding and after adding a view. Like :
int x = container.getChildCount();
container.addView(child, params);
int y = container.getChildCount();
if(y > x)
Toast.makeText(context, "View Successfully Added!", Toas.LENGTH_SHORT).show();
Solution 4
Or if you have a view instance to find, you could:
if (container.indexOfChild(childView) == -1) {
// Add child to container.
}
Solution 5
I cannot write a comment so I write it here as a solution:
From API level 19 you can call isAttachedToWindow()
which doesn't help a lot, but if you are aiming API 19
or higher, then this should work by the documentation.
Comments
-
Mellon over 4 years
In my fragment class, I add a child view element programmatically to my layout conditionally :
LinearLayout child = (LinearLayout) inflater.inflate(R.layout.child_view, null); LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT,100); container.addView(child, params);
Since the above code will be run conditionally, so, at some point, I would like to check if the child view has added or not, how to make this checking programmatically?