androidandroid-layoutandroid-widget

Disable all elements in a layout - Android

In my Android app there is a requirement that a number of UI elements should be disabled until a button is clicked. Can I disable all the UI elements in a layout by referring the layout without disable them one by one?

Solution

  • You could disable all views recursively like this. Just pass the layout as view to the method:

    private void enableViews(View v, boolean enabled) {
    if (v instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) v;
        for (int i = 0;i<vg.getChildCount();i++) {
            enableViews(vg.getChildAt(i), enabled);
        }
    } 
    v.setEnabled(enabled);
}

    Just run enableViews(view, false) to disable, or enableViews(view, true) to enable again.