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javaandroidprogress

ProgressBar in Android Studio: The path must start at (0,0) and end at (1,1)

As soon as I add a ProgressBar to my project, Android Studio will show me the following error in layout editor (see picture):Error in Layout Editor

In addition, it tells me to disable experimental Layout Rendering Engine. If I do so, it will throw a Render Error instead (see second picture):

Picture 2

Even though the error is thrown, the ProgressBar itself works fine. Can I just ignore the error or is there a workaround/fix for it?

Also, my Fragment looks like this:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:id="@+id/constraintLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ui.main.Page1">

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline1_page1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_percent="0.6" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline2_page1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_percent="0.1" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline3_page1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_percent="0.18" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline4_page1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_percent="0.3" />

    <TextView
        android:id="@+id/textView_page1"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@drawable/rounded_corners"
        app:layout_constraintBottom_toTopOf="@+id/guideline1_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView_chooseVersion"
        android:layout_width="170dp"
        android:layout_height="30dp"
        android:text="@string/chooseVersion_text"
        android:textColor="@color/white"
        android:textSize="23sp"
        app:layout_constraintBottom_toTopOf="@+id/guideline3_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.1"
        app:layout_constraintStart_toStartOf="parent" />

    <Spinner
        android:id="@+id/spinner1_page1"
        android:layout_width="145dp"
        android:layout_height="30dp"
        android:background="@drawable/spinner_bg"
        app:layout_constraintBottom_toTopOf="@+id/guideline3_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.9"
        app:layout_constraintStart_toStartOf="parent" />

    <TextView
        android:id="@+id/textView_chooseType"
        android:layout_width="170dp"
        android:layout_height="30dp"
        android:text="@string/chooseType_text"
        android:textColor="@color/white"
        android:textSize="23sp"
        app:layout_constraintBottom_toTopOf="@+id/guideline2_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.1"
        app:layout_constraintStart_toStartOf="parent" />

    <Spinner
        android:id="@+id/spinner2_page1"
        android:layout_width="145dp"
        android:layout_height="30dp"
        android:background="@drawable/spinner_bg"
        app:layout_constraintBottom_toTopOf="@+id/guideline2_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.9"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/button_AFH"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="20dp"
        android:text="@string/afh_download"
        android:textSize="12sp"
        app:layout_constraintBottom_toBottomOf="@+id/textView_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.098"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/button_gdrive"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="20dp"
        android:text="@string/gdrive_download"
        android:textSize="12sp"
        app:layout_constraintBottom_toBottomOf="@+id/textView_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.911"
        app:layout_constraintStart_toStartOf="parent" />

    <ProgressBar
        android:id="@+id/progressBar1_page1"
        style="@android:style/Widget.Material.ProgressBar.Small"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="@+id/guideline4_page1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.9"
        app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>
Solution

  • That errors are about editMode aka. preview in IDE. Yes it is safe to ignore them. But if you want to fix it probably adding some tools properties might help. In this case I guess tools:max might help. Also if it was a custom view written by yourself (which is not, just saying) you could check it with isInEditMode inside your view.