Android ImageView margins -


creating layout , can not solve margins , above imageview
(and don't understand why appear).
logo without these margins.
use layout_width="250dp" same buttons.
, layout_height="wrap content".

enter image description here

layout code here:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:background="@drawable/menu_background"     android:gravity="center"     android:layout_gravity="center"     android:orientation="vertical"      >      <imageview          android:layout_width="250dp"         android:layout_height="wrap_content"         android:src="@drawable/game_logo"          />      <button         android:id="@+id/start_button"         style="@style/menubuttonstyle"         android:layout_margin="5dp"         android:text="@string/start_button" />      <button         android:id="@+id/result_button"         style="@style/menubuttonstyle"         android:layout_margin="5dp"         android:text="@string/high_score" />      <button         android:id="@+id/settings_button"         style="@style/menubuttonstyle"         android:layout_margin="5dp"         android:text="@string/settings" />      <button         android:id="@+id/about_button"         style="@style/menubuttonstyle"         android:layout_margin="5dp"         android:text="@string/about_button" />  </linearlayout>

can manage without setting imageview's layout_height in dp?

set following property in imageview: 

android:adjustviewbounds="true"

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