Find controls in any view in Android

1, in many cases, we may not know the ID of the control, but we would like to find it in the view containing the control, you can use the following practices:

Example: Find all of the button controls in the activity's root view

private void Findbutton (ViewGroup group, list<button> result)
{
if (group! = null)
{
for (int i = 0, j = group.getchildcount (); i < J; i++)
{
View child = Group.getchildat (i);
if (Child instanceof Button)
{
Result.add (Button) child);
} else if (child instanceof ViewGroup)
{
Findbutton ((viewgroup) child, result);
}
}
}
}

Called in the activity:

list<button> result = new arraylist<button> ();
This.findbutton ((ViewGroup) This.getwindow (). Getdecorview (), result);

This method is in fact recursively from the root view to find the entire control tree, finally find the control that meets the requirements, a little rewrite can meet the needs of a variety of search control.

Find controls in any view in Android