I'm doing an app on Android but I have the problem that when I run the app on my device I throw all my objects in the same space. Do you think you know what is due? Here is my 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"
tools:context="com.example.sac_a.owsapp.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" />
<Button
android:id="@+id/btnQr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Vista QR"
tools:layout_editor_absoluteX="46dp"
tools:layout_editor_absoluteY="388dp"
tools:ignore="MissingConstraints" />
<Button
android:id="@+id/btnGps"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="clickGps"
android:text="Vista Gps"
tools:ignore="MissingConstraints"
tools:layout_editor_absoluteX="253dp"
tools:layout_editor_absoluteY="99dp" />
</android.support.constraint.ConstraintLayout> This is how it looks on my device
As always, I am infinitely grateful for your help.