Project 1: HelloAndroid

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFFFF"
    tools:context="com.example.android.helloandroid.MainActivity">

    <ImageView
        android:id="@+id/drawable"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/udacityoffice"
        android:scaleType="fitStart" />

    <TextView
        android:id="@+id/uda"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Udacity"
        android:textStyle="bold"
        android:textAllCaps="true"
        android:fontFamily="sans-serif"
        android:textSize="22dp"
        android:layout_marginBottom="4dp"
        android:layout_marginLeft="8dp"
        app:layout_constraintBottom_toTopOf="@+id/adr"
        app:layout_constraintLeft_toLeftOf="parent" />

    <TextView
        android:id="@+id/adr"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2465 Latham St\nMountain View, CA 94043\n650-555-5555\nww.udacity.com"
        android:fontFamily="sans-serif"
        android:textSize="18dp"
        android:layout_marginLeft="8dp"
        android:layout_marginBottom="16dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintBottom_toBottomOf="parent" />

</android.support.constraint.ConstraintLayout>

gistfile1.txt

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFFFF"
    tools:context="com.example.android.helloandroid.MainActivity">

    <ImageView
        android:id="@+id/drawable"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/udacityoffice"
        android:scaleType="fitStart" />

    <TextView
        android:id="@+id/uda"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Udacity"
        android:textStyle="bold"
        android:textAllCaps="true"
        android:fontFamily="sans-serif"
        android:textSize="22dp"
        android:layout_marginBottom="4dp"
        android:layout_marginLeft="8dp"
        app:layout_constraintBottom_toTopOf="@+id/adr"
        app:layout_constraintLeft_toLeftOf="parent" />

    <TextView
        android:id="@+id/adr"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2465 Latham St\nMountain View, CA 94043\n650-555-5555\nww.udacity.com"
        android:fontFamily="sans-serif"
        android:textSize="18dp"
        android:layout_marginLeft="8dp"
        android:layout_marginBottom="16dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintBottom_toBottomOf="parent" />

</android.support.constraint.ConstraintLayout>

MainActivity.java

package com.example.android.helloandroid;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}