android - Overlay button prevents dialogs from appearing, using TYPE_SYSTEM_ALERT -

i adding notification icon overlaid in corner of activities when there important things user needs know. have working, except prevents spinners, dialogs, , edittext working. spinners appear work, except can't see them, if touch it, touch again, option gets selected, spinner dialog doesn't appear.

base activity other activities extend:

public abstract class loggedinactivity         extends gaugesactivity {     private static final string tag = "loggedinactivity";      private windowmanager wm;     private boolean overlaycreated = false;     private linearlayout moverlay;     private imageview moverlayimageview;      @override     protected void onresume(){         super.onresume();         wm = (windowmanager) getsystemservice(window_service);         sharedpreferences prefs = getsharedpreferences(prefs_name, mode_private);         string duplicatetruckguid = prefs.getstring("duplicatetruckguid", "");         if (! duplicatetruckguid.isempty()){             createoverlay();         }     }      protected void createoverlay(){         if (overlaycreated) return;          // create system overlay         windowmanager.layoutparams params = new windowmanager.layoutparams(                 windowmanager.layoutparams.wrap_content,windowmanager.layoutparams.wrap_content,                 windowmanager.layoutparams.type_system_alert,  // windowmanager.layoutparams.type_application_panel,                 windowmanager.layoutparams.flag_not_focusable                         | windowmanager.layoutparams.flag_not_touch_modal,                 pixelformat.translucent);         params.gravity = gravity.right | gravity.bottom;         params.token = getwindow().getdecorview().getrootview().getwindowtoken();          layoutinflater inflater = (layoutinflater) getsystemservice(layout_inflater_service);         moverlay = (linearlayout) inflater.inflate(r.layout.overlay_notification, null); //        moverlayimageview = (imageview) moverlay.findviewbyid(r.id.overlay_notification_image);          try {             wm.addview(moverlay, params);              final context context = this;              moverlay.setontouchlistener(new view.ontouchlistener() {                 @override                 public boolean ontouch(view v, motionevent event) {                     intent intent = new intent(context, notificationsactivity.class);                     intent.setflags(intent.flag_activity_clear_top);                     startactivity(intent);                     return true;                 }             });         }         catch (exception e){             log.e(tag, e.tostring());             log.i(tag, e.tostring());             toast.maketext(this, e.tostring(), toast.length_short).show();         }     } 

overlay_notification.xml:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:gravity="bottom"     android:background="@drawable/black_transparent_overlay">      <imageview         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:id="@+id/overlay_notification_image"         android:src="@drawable/ic_warning_active"         android:layout_margin="@dimen/normal_padding"/> </linearlayout> 

you can use type_system_error instead of type_system_alert.

also, flag_not_touch_modal implicitly set flag_not_focusable don't need add manually.

however, suggest consider alternative pointed out commonsware.