Android's Vertical Linear Layout weighting doesn't take into account actionbar height -

for spanish wotd app have 3 cardviews sitting in linear layout. top , bottom ones equally weighted , middle 1 more important weighted accordingly. no matter what, bottom 1 seems hang on screen (about size of actionbar), after changing around weights.

it appears when android calculating percentages, doesn't account actionbar @ all. i've done other people has said including changing match_parent, 0dp height, nothing working. have no idea why.

<linearlayout 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"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context="com.cinnamint.cotidiano.mainactivity$placeholderfragment"     android:orientation="vertical">      <android.support.v7.widget.cardview         xmlns:card_view="http://schemas.android.com/apk/res-auto"         android:id="@+id/card_view_header"         android:layout_gravity="center"         android:layout_width="match_parent"         android:layout_height="0dp"         android:layout_weight="1"         card_view:cardcornerradius="4dp">          <textview             android:id="@+id/day_of_week_label"             android:layout_width="wrap_content"             android:layout_height="wrap_content" />      </android.support.v7.widget.cardview>       <android.support.v7.widget.cardview         xmlns:card_view="http://schemas.android.com/apk/res-auto"         android:id="@+id/card_view_content"         android:layout_gravity="center"         android:layout_width="match_parent"         android:layout_height="0dp"         android:layout_weight="1"         card_view:cardcornerradius="4dp">          <textview             android:id="@+id/word"             android:layout_width="wrap_content"             android:layout_height="wrap_content" />         <view             android:layout_width="match_parent"             android:layout_height="2dp"             android:background="@android:color/darker_gray" />         <textview             android:id="@+id/definition"             android:layout_width="wrap_content"             android:layout_height="wrap_content" />       </android.support.v7.widget.cardview>      <android.support.v7.widget.cardview         xmlns:card_view="http://schemas.android.com/apk/res-auto"         android:id="@+id/card_view_date"         android:layout_gravity="center"         android:layout_width="match_parent"         android:layout_height="0dp"         android:layout_weight="1"         card_view:cardcornerradius="4dp">          <textview             android:id="@+id/date"             android:layout_width="wrap_content"             android:layout_height="wrap_content" />      </android.support.v7.widget.cardview>   </linearlayout> 

look @ screenshot (sorry if hard see), bottom card hangs over

edit: manifest

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.cinnamint.cotidiano">      <application         android:allowbackup="true"         android:icon="@mipmap/ic_launcher"         android:label="@string/app_name"         android:supportsrtl="true"         android:theme="@style/apptheme">         <activity             android:name=".mainactivity"             android:label="@string/app_name"             android:theme="@style/apptheme.noactionbar">             <intent-filter>                 <action android:name="android.intent.action.main" />                  <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>     </application>  </manifest> 

styles:

<resources>      <!-- base application theme. -->     <style name="apptheme" parent="theme.appcompat.light.darkactionbar">         <!-- customize theme here. -->         <item name="colorprimary">@color/colorprimary</item>         <item name="colorprimarydark">@color/colorprimarydark</item>         <item name="coloraccent">@color/coloraccent</item>     </style>      <style name="apptheme.noactionbar">         <item name="windowactionbar">false</item>         <item name="windownotitle">true</item>     </style>      <style name="apptheme.appbaroverlay" parent="themeoverlay.appcompat.dark.actionbar" />      <style name="apptheme.popupoverlay" parent="themeoverlay.appcompat.light" />  </resources> 

edit: activity_main.xml

ding="utf-8"?> <android.support.design.widget.coordinatorlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/main_content"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true"     tools:context="com.cinnamint.cotidiano.mainactivity"     app:layout_behavior="@string/appbar_scrolling_view_behavior"     >      <android.support.design.widget.appbarlayout         android:id="@+id/appbar"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:paddingtop="@dimen/appbar_padding_top"         android:theme="@style/apptheme.appbaroverlay">          <android.support.v7.widget.toolbar             android:id="@+id/toolbar"             android:layout_width="match_parent"             android:layout_height="?attr/actionbarsize"             android:background="?attr/colorprimary"             app:layout_scrollflags="scroll|enteralways"             app:popuptheme="@style/apptheme.popupoverlay">          </android.support.v7.widget.toolbar>      </android.support.design.widget.appbarlayout>      <android.support.v4.view.viewpager         android:id="@+id/container"         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_behavior="@string/appbar_scrolling_view_behavior"         android:fitssystemwindows="true"/>      <android.support.design.widget.floatingactionbutton         android:id="@+id/fab"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="end|bottom"         android:layout_margin="@dimen/fab_margin"         android:src="@android:drawable/ic_dialog_email"         android:visibility="invisible" />  </android.support.design.widget.coordinatorlayout> 

mainactivity

package com.cinnamint.cotidiano;  import android.support.design.widget.floatingactionbutton; import android.support.design.widget.snackbar; import android.support.v7.app.appcompatactivity; import android.support.v7.widget.toolbar;  import android.support.v4.app.fragment; import android.support.v4.app.fragmentmanager; import android.support.v4.app.fragmentpageradapter; import android.support.v4.view.viewpager; import android.os.bundle; import android.util.log; import android.view.layoutinflater; import android.view.menu; import android.view.menuitem; import android.view.view; import android.view.viewgroup;  import android.widget.textview;  import java.text.simpledateformat; import java.util.calendar; import java.util.date; import java.util.list; import java.util.locale;  public class mainactivity extends appcompatactivity {      /**      * {@link android.support.v4.view.pageradapter} provide      * fragments each of sections. use      * {@link fragmentpageradapter} derivative, keep every      * loaded fragment in memory. if becomes memory intensive,      * may best switch      * {@link android.support.v4.app.fragmentstatepageradapter}.      */     private sectionspageradapter msectionspageradapter;      private static list<words> availablewords;      private long milliseconds_per_day = 24 * 60 * 60 * 1000;      private long dayssincecinnamintepoch;      private calendar cinnamintepoch;      private static final int cinnamint_epoch_day = 15;     private static final int cinnamint_epoch_month = 7 - 1;     private static final int cinnamint_epoch_year = 2016;      private static final string tag = "cinnamint_cotidiano";       /**      * {@link viewpager} host section contents.      */     private viewpager mviewpager;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar);         setsupportactionbar(toolbar);          // july 14, 2016: day 1 of development         // add appropriate number of days         cinnamintepoch = calendar.getinstance();         cinnamintepoch.set(calendar.day_of_month, cinnamint_epoch_day);         cinnamintepoch.set(calendar.month, cinnamint_epoch_month);         cinnamintepoch.set(calendar.year, cinnamint_epoch_year);           calendar today = calendar.getinstance();         dayssincecinnamintepoch = (long) math.ceil(                                             (today.gettimeinmillis() - cinnamintepoch.gettimeinmillis()) / milliseconds_per_day                                             );          log.d(tag, long.tostring(dayssincecinnamintepoch));           worddatabase wdb = new worddatabase(getapplicationcontext());         wdb.open();         availablewords = wdb.geteverywordbydate(dayssincecinnamintepoch);         wdb.close();          // create adapter return fragment each of 3         // primary sections of activity.         msectionspageradapter = new sectionspageradapter(getsupportfragmentmanager(), availablewords.size());          // set viewpager sections adapter.         mviewpager = (viewpager) findviewbyid(r.id.container);         mviewpager.setadapter(msectionspageradapter);          // move farthest right position         mviewpager.setcurrentitem(availablewords.size() - 1);           floatingactionbutton fab = (floatingactionbutton) findviewbyid(r.id.fab);         fab.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view view) {                 snackbar.make(view, "replace own action", snackbar.length_long)                         .setaction("action", null).show();             }         });        }       @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.menu_main, menu);         return true;     }      @override     public boolean onoptionsitemselected(menuitem item) {         // handle action bar item clicks here. action bar         // automatically handle clicks on home/up button, long         // specify parent activity in androidmanifest.xml.         int id = item.getitemid();          //noinspection simplifiableifstatement         if (id == r.id.action_settings) {             return true;         }          return super.onoptionsitemselected(item);     }      /**      * placeholder fragment containing simple view.      */     public static class placeholderfragment extends fragment {         /**          * fragment argument representing section number          * fragment.          */         private static final string arg_section_number = "section_number";          public placeholderfragment() {         }          /**          * returns new instance of fragment given section          * number.          */         public static placeholderfragment newinstance(int sectionnumber) {             placeholderfragment fragment = new placeholderfragment();             bundle args = new bundle();             args.putint(arg_section_number, sectionnumber);               fragment.setarguments(args);             return fragment;         }          @override         public view oncreateview(layoutinflater inflater, viewgroup container,                                  bundle savedinstancestate) {             view rootview = inflater.inflate(r.layout.fragment_main, container, false);             textview dayofweeklabel = (textview) rootview.findviewbyid(r.id.day_of_week_label);             textview wordlabel = (textview) rootview.findviewbyid(r.id.word);             textview definitionlabel = (textview) rootview.findviewbyid(r.id.definition);             textview datelabel = (textview) rootview.findviewbyid(r.id.date);              int sectionnumber = getarguments().getint(arg_section_number);               // july 14, 2016: day 1 of development             // add appropriate number of days             calendar fragmentdate = calendar.getinstance();             fragmentdate.set(calendar.day_of_month, cinnamint_epoch_day + (sectionnumber - 1));             fragmentdate.set(calendar.month, cinnamint_epoch_month);             fragmentdate.set(calendar.year, cinnamint_epoch_year);              // format day , date             date date = fragmentdate.gettime();             simpledateformat format = new simpledateformat("d mmmm, yyyy", new locale("es", "es"));              words targetword = mainactivity.availablewords.get(sectionnumber - 1);             string dayofweekcontent = (new simpledateformat("eeee", new locale("es", "es"))).format(date.gettime());             string wordcontent = targetword.gettext();             string definitioncontent = targetword.getdefinition();             string datecontent = format.format(date);                dayofweeklabel.settext(dayofweekcontent);             wordlabel.settext(wordcontent);             definitionlabel.settext(definitioncontent);             datelabel.settext(datecontent);              return rootview;         }     }      /**      * {@link fragmentpageradapter} returns fragment corresponding      * 1 of sections/tabs/pages.      */     public class sectionspageradapter extends fragmentpageradapter {          private int items = 1;          public sectionspageradapter(fragmentmanager fm, int item_count) {             super(fm);             items = item_count;         }            @override         public fragment getitem(int position) {             // getitem called instantiate fragment given page.             // return placeholderfragment (defined static inner class below).             return placeholderfragment.newinstance(position + 1);         }          @override         public int getcount() {             return items;         }          @override         public charsequence getpagetitle(int position) {             switch (position) {                 case 0:                     return "section 1";                 case 1:                     return "section 2";                 case 2:                     return "section 3";             }             return null;         }     } } 

i have found fix multiple applications don't take account actionbar size adding app:layout_behavior="@string/appbar_scrolling_view_behavior" layout. in case, put in linearlayout. also, may have put android:fitssystemwindows="true" in linearlayout.

fragments others having issue using fragments, put line in layout (probably framelayout) contains fragment's <include/> statement.