java - How to fill page with overlay -

i have transparent overlay in android app when user click on it,it fade can't fill activity below image

mainactivity :

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".mainactivity" >  <textview     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerhorizontal="true"     android:layout_centervertical="true"     android:text="this original view" />  </relativelayout> 

overlayactivity :

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" >  <imageview     android:id="@+id/over_lay_image"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:background="#50220000" />  <textview     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparenttop="true"     android:layout_centerhorizontal="true"     android:layout_margintop="30dp"     android:text="this overlay view" />  </relativelayout> 

java :

public class mainactivity extends activity {  private imageview moverlayimage;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      final dialog overlayinfo = new dialog(mainactivity.this);     overlayinfo.requestwindowfeature(window.feature_no_title);     overlayinfo.getwindow().setbackgrounddrawable(new colordrawable(color.transparent));     overlayinfo.getwindow().clearflags(windowmanager.layoutparams.flag_dim_behind);     overlayinfo.setcontentview(r.layout.overlay_view);     overlayinfo.show();      moverlayimage = (imageview) overlayinfo.findviewbyid(r.id.over_lay_image);     moverlayimage.setonclicklistener(new onclicklistener() {          @override         public void onclick(view v) {             // todo auto-generated method stub              overlayinfo.cancel();         }     });   } } 

delete overlay activity, , inside main activity apply code :

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".mainactivity" >  <textview     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerhorizontal="true"     android:layout_centervertical="true"     android:text="this original view" />  <!-- overlay --> <relativelayout android:id="@+id/over_lay_page" android:layout_width="match_parent" android:layout_height="match_parent" >  <imageview     android:id="@+id/over_lay_image"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:background="#50220000"     android:onclick="clickedoverlay" />  <textview      android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparenttop="true"     android:layout_centerhorizontal="true"     android:layout_margintop="30dp"     android:text="this overlay view" />  </relativelayout>  </relativelayout> 

note added line on imageview runs function when clicked, on java file add function:

//the onclick on xml requires function of signature void(view) clicked view (in case imageview) public void clickedoverlay(view view) {     //imageview clicked     relativelayout rllayout = (relativelayout) findviewbyid(r.id.over_lay_page);     rllayout.setvisibility(view.gone); } 

this make relativelayout contains overlay views (including imageview clicked) not invisible not interfere anything. ignores input it.

in case misunderstood question feel free correct me (i'm not sure understood completely).

also if want fade in or out or can alphaanimation.