fedilab-Android-App/app/src/main/res/layout/activity_about.xml

<?xml version="1.0" encoding="utf-8"?><!--
    Copyright 2017 Thomas Schneider

    This file is a part of Fedilab

    This program is free software; you can redistribute it and/or modify it under the terms of the
    GNU General Public License as published by the Free Software Foundation; either version 3 of the
    License, or (at your option) any later version.

    Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
    the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
    Public License for more details.

    You should have received a copy of the GNU General Public License along with Fedilab; if not,
    see <http://www.gnu.org/licenses>.
-->
<ScrollView 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:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <!-- About app name -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="10dp"
            android:gravity="center_horizontal"
            android:text="@string/app_name"
            android:textSize="20sp" />
        <!-- About version -->
        <TextView
            android:id="@+id/about_version"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="10dp"
            android:gravity="center_horizontal"
            android:textSize="16sp" />

        <!-- About developer -->
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginTop="10dp"
            android:gravity="center_vertical"
            android:padding="5dp"
            android:text="@string/about_developer"
            android:textColor="?colorAccent"
            android:textSize="16sp" />

        <app.fedilab.android.helper.ExpandableHeightListView
            android:id="@+id/lv_developers"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:divider="@null"
            android:scrollbars="none" />

        <TextView
            android:id="@+id/txt_developers"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:textSize="18sp"
            android:visibility="gone" />

        <Button
            android:id="@+id/about_support"
            style="@style/Base.Widget.AppCompat.Button.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:text="@string/support_the_app_on_liberapay" />

        <Button
            android:id="@+id/about_support_paypal"
            style="@style/Base.Widget.AppCompat.Button.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:text="PayPal"
            tools:ignore="HardcodedText" />

        <TextView
            android:id="@+id/about_website"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:autoLink="web"
            android:gravity="center"
            android:padding="10dp"
            android:text="https://fedilab.app"
            android:textSize="16sp"
            tools:ignore="HardcodedText" />

        <!-- About UX/UI designer -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginTop="10dp"
            android:gravity="center_vertical"
            android:padding="5dp"
            android:text="@string/thanks_text_ux"
            android:textColor="?colorAccent"
            android:textSize="16sp" />

        <app.fedilab.android.helper.ExpandableHeightListView
            android:id="@+id/lv_ux"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:divider="@null"
            android:scrollbars="none" />

        <TextView
            android:id="@+id/txt_ux"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            android:visibility="gone" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            android:visibility="gone" />


        <!-- About contributors -->

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginTop="10dp"
            android:gravity="center_vertical"
            android:padding="5dp"
            android:text="@string/thanks_text_dev"
            android:textColor="?colorAccent"
            android:textSize="16sp" />

        <app.fedilab.android.helper.ExpandableHeightListView
            android:id="@+id/lv_contributors"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:divider="@null"
            android:scrollbars="none" />

        <TextView
            android:id="@+id/txt_thankyou1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            android:visibility="gone" />

        <TextView
            android:id="@+id/txt_thankyou2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            android:visibility="gone" />

        <!-- About license -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="5dp">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="2"
                android:gravity="center"
                android:text="@string/about_license"
                android:textSize="16sp" />

            <Button
                android:id="@+id/about_license"
                style="@style/Base.Widget.AppCompat.Button.Colored"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:text="@string/about_license_action" />
        </LinearLayout>

        <!-- About license -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="5dp">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="2"
                android:gravity="center"
                android:text="@string/about_code"
                android:textSize="16sp" />

            <Button
                android:id="@+id/about_code"
                style="@style/Base.Widget.AppCompat.Button.Colored"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:text="@string/about_code_action" />
        </LinearLayout>


        <!-- About The Kinrar\'s API -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="5dp">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="2"
                android:gravity="center"
                android:text="@string/about_thekinrar"
                android:textSize="16sp" />

            <Button
                android:id="@+id/about_thekinrar"
                style="@style/Base.Widget.AppCompat.Button.Colored"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:text="@string/about_thekinrar_action" />
        </LinearLayout>

        <!-- About Trunk\'s API -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="5dp">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="2"
                android:gravity="center"
                android:text="@string/about_trunk"
                android:textSize="16sp" />

            <Button
                android:id="@+id/about_trunk"
                style="@style/Base.Widget.AppCompat.Button.Colored"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:text="@string/about_trunk_action" />
        </LinearLayout>

    </LinearLayout>
</ScrollView>