apps-android-commons/commons/res/layout/activity_about.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:gravity="center"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <ImageView
        android:src="@drawable/ic_launcher"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        />

    <TextView
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:text="@string/app_name"
        style="?android:textAppearanceLarge"
        />

    <TextView
        android:id="@+id/about_version"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

    <TextView
        android:id="@+id/about_license"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        style="?android:textAppearanceSmall"
        android:gravity="center"
        android:text="@string/about_license"
        />
    <TextView
            android:id="@+id/about_improve"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            style="?android:textAppearanceSmall"
            android:gravity="center"
            android:text="@string/about_improve"
            />
    <TextView
            android:id="@+id/about_privacy_policy"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            style="?android:textAppearanceSmall"
            android:gravity="center"
            android:text="@string/about_privacy_policy"
            />
</LinearLayout>