In my case it helped.
main_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main2"
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"
android:orientation="vertical"
tools:context="com.livewallpaper.profileview.loginact.Main2Activity">
<TextView
android:layout_weight="1"
android:layout_width="match_parent"
android:text="Title"
android:gravity="center"
android:layout_height="0dp" />
<LinearLayout
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
<EditText
android:hint="enter here"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<TextView
android:layout_weight="1"
android:text="signup for App"
android:gravity="bottom|center_horizontal"
android:layout_width="match_parent"
android:layout_height="0dp" />
</LinearLayout>
Use this in manifest file
<activity android:name=".MainActivity"
android:screenOrientation="portrait"
android:windowSoftInputMode="adjustResize"/>
Now the most important part!
Use theme like this in either Activity or Application tag.
android:theme="@style/AppTheme"
And the theme tooks like this
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="windowActionModeOverlay">true</item>
</style>
So I was missing the theme. Which made me frustrated all day.