Method to get all EditTexts in a View

Question

can anyone help me with coding a method to get all EditTexts in a view? I would like to implement the solution htafoya posted here: How to hide soft keyboard on android afte

Answer 1

Here's a method I wrote to recursively check all EditText children of a ViewGroup, handy for a long sign-up form I had to do and probably more maintainable.

private EditText traverseEditTexts(ViewGroup v)
{
    EditText invalid = null;
    for (int i = 0; i < v.getChildCount(); i++)
    {
        Object child = v.getChildAt(i); 
        if (child instanceof EditText)
        {
            EditText e = (EditText)child;
            if(e.getText().length() == 0)    // Whatever logic here to determine if valid.
            {
                return e;   // Stops at first invalid one. But you could add this to a list.
            }
        }
        else if(child instanceof ViewGroup)
        {
            invalid = traverseEditTexts((ViewGroup)child);  // Recursive call.
            if(invalid != null)
            {
                break;
            }
        }
    }
    return invalid;
}

private boolean validateFields()
{   
    EditText emptyText = traverseEditTexts(mainLayout);
    if(emptyText != null)
    {
        Toast.makeText(this, "This field cannot be empty.", Toast.LENGTH_SHORT).show();
        emptyText.requestFocus();      // Scrolls view to this field.
    }
    return emptyText == null;
}