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I am trying to follow this tutorial (https://developer.android.com/training/basics/firstapp/building-ui) to build a basic app. I am pretty sure that I have followed all the directions correctly, but after getting to figure 3 of Build a simple user interface, my blueprint is just a solid blue rectangle and does not look like figure 3 in the tutorial.

Here is the code:

<?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"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>
Cœur
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Nathan Berger
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1 Answers1

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As I'm cruising around looking for better answers to this problem I'm slinging this S.O. solution: https://stackoverflow.com/a/47611939/1437920 that worked for me.

Unfortunate the "Hello World" example that is pre-built didn't go well for you, that can be discouraging.

ross studtman
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