Activity_Main.xml for Basketball Score Counter

Activity_Main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.android.courtcounter.MainActivity">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:paddingTop="16dp"
        android:paddingLeft="24dp"
        android:paddingRight="24dp"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:padding="4sp"
            android:text="Team A"
            android:fontFamily="sans-serif-medium"
            android:textColor="#616161"
            android:textSize="14sp" />

        <TextView
            android:id="@+id/team_a_score"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:paddingTop="16dp"
            android:paddingBottom="24dp"
            android:textColor="#000000"
            android:fontFamily="sans-serif-light"
            android:text="0"
            android:textSize="56sp" />

        <Button
            android:id="@+id/points3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaTresTeamA"
            android:text="+3 points" />

        <Button
            android:id="@+id/points2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaDosTeamA"
            android:text="+2 points" />

        <Button
            android:id="@+id/points1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaUnoTeamA"
            android:text="free throw"
            android:textAllCaps="true" />
    </LinearLayout>
    <View
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:background="@android:color/darker_gray"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:paddingTop="16dp"
        android:paddingLeft="24dp"
        android:paddingRight="24dp"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:padding="4dp"
            android:text="Team B"
            android:fontFamily="sans-serif-medium"
            android:textColor="#616161"
            android:textSize="14sp" />

        <TextView
            android:id="@+id/team_b_score"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:paddingTop="16dp"
            android:paddingBottom="24dp"
            android:textColor="#000000"
            android:fontFamily="sans-serif-light"
            android:text="0"
            android:textSize="56sp" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaTresTeamB"
            android:text="+3 points" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaDosTeamB"
            android:text="+2 points" />

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            android:onClick="SumaUnoTeamB"
            android:text="free throw"
            android:textAllCaps="true" />
    </LinearLayout>

</LinearLayout>

        <Button
            android:onClick="resetea"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="reset"
            android:layout_marginBottom="32dp"
            android:textAllCaps="true"
            android:textSize="20sp"
            />
</RelativeLayout>