android - In linearLayout i have got cutted upper part oh application -

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what want achieve: both orientation looking buttons in linearlayout

<scrollview     android:layout_height="match_parent"     android:layout_width="match_parent"     xmlns:android="http://schemas.android.com/apk/res/android"     android:background="#fffffce0">  <linearlayout     android:layout_width="match_parent"     android:layout_height="match_parent"     android:background="#fffffce0"     android:orientation="vertical"     android:gravity="center"     android:layout_gravity="center"     >       <button         android:layout_width="match_parent"         android:layout_height="90dp"         android:id="@+id/bmnemo"         android:layout_margintop="20dp"         android:text="@string/bmnemo"         android:textcolor="#ffffff"         android:background="@drawable/custon_button_active"         android:textsize="18sp"         android:onclick="mnemotechniki"         android:layout_weight="1" />      <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/bznasz"         android:layout_gravity="center_horizontal"         android:layout_margintop="40dp"         android:background="@drawable/custon_button_active"         android:text="@string/bznasz"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="znasz"         android:layout_weight="1" />      <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/b1000"         android:layout_gravity="center_horizontal"         android:layout_margintop="40dp"         android:background="@drawable/custon_button_active"         android:text="@string/b1000"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="metoda1000"         android:layout_weight="1" />      <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/bmoje"         android:layout_margintop="40dp"         android:background="@drawable/custom_button_unactive"         android:text="@string/bmoje"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="moje"         android:layout_weight="1"         android:layout_marginbottom="10dp"         />  </linearlayout> </scrollview>   <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">     <item android:drawable="@drawable/b_active_pressed"         android:state_pressed="true" />     <item android:drawable="@drawable/b_active"         android:state_focused="true" />     <item android:drawable="@drawable/b_active" /> </selector>

problem: when rotate screen on phone (to landscape, start screen) upper part of app cutted, in photo: http://zapodaj.net/15ab989809a33.jpg.html

(a (in picture) - cutted part)

use weight sum , remove margin top button layout.

<scrollview     android:layout_height="match_parent"     android:layout_width="match_parent"     xmlns:android="http://schemas.android.com/apk/res/android"     android:background="#fffffce0"> <linearlayout     android:layout_width="match_parent"     android:layout_height="match_parent"     android:background="#fffffce0"     android:orientation="vertical"     android:gravity="center"     android:layout_gravity="center" android:weightsum="4"     >  <button         android:layout_width="match_parent"         android:layout_height="90dp"         android:id="@+id/bmnemo"          android:text="@string/bmnemo"         android:textcolor="#ffffff"         android:background="@drawable/custon_button_active"         android:textsize="18sp"         android:onclick="mnemotechniki"         android:layout_weight="1" /> <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/bznasz"         android:layout_gravity="center_horizontal"     android:background="@drawable/custon_button_active"         android:text="@string/bznasz"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="znasz"         android:layout_weight="1" />  <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/b1000"         android:layout_gravity="center_horizontal"    android:background="@drawable/custon_button_active"         android:text="@string/b1000"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="metoda1000"         android:layout_weight="1" />     <button         android:layout_width="match_parent"         android:layout_height="70dp"         android:id="@+id/bmoje"          android:background="@drawable/custom_button_unactive"         android:text="@string/bmoje"         android:textcolor="#ffffff"         android:textsize="15sp"         android:onclick="moje"         android:layout_weight="1"``         android:layout_marginbottom="10dp"         /> </linearlayout> </scrollview>

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