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Android ProgressBar
ProgressBar Styles
Exemple: ProgressBar (Thread, Handler)

Le Tutoriel de Android ProgressBar

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Tutoriels de programmation Android

Android ProgressBar
ProgressBar Styles
Exemple: ProgressBar (Thread, Handler)

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1- Android ProgressBar

Sous Android, ProgressBar est un composant de l'interface permettant d'afficher la progression d'une activité. Par exemple: télécharger (download) ou téléverser (upload) un fichier, etc.

ProgressBar comporte différents styles déterminés par l'attribut style. À la base, il existe deux types de ProgressBar:

Spinning Wheel ProgressBar (ProgressBar la roue tournante).
Horizontal ProgressBar (ProgressBar à l'horizontal)


<!-- Spinning Wheel ProgressBar -->
<ProgressBar
    android:id="@+id/progressBar"
    style="?android:attr/progressBarStyle"
    ...  />


<!-- Horizontal ProgressBar -->
<ProgressBar
    android:id="@+id/progressBar"
    style="?android:attr/progressBarStyleHorizontal"
    ...  />

De plus, ProgressBar soutient deux modes (mode) du processus que sont Determinate (Déterminé) et Indeterminate (Indéterminé).

Determinate mode

Determinate mode (Mode déterminé): Il est recommandé d'utiliser ce mode pour ProgressBar si vous pouvez déterminer le pourcentage de travail achevé. Par exemple, le pourcentage de fichiers téléchargés, le nombre d'enregistrements intégrés dans les données, etc.

Le mode par défaut d'une ProgressBar à l'horizontal est Determinate (Déterminé).

Les attributs les plus utilisés pour une ProgressBar dans le mode Determinate (Déterminé):

Thuộc tính	Mô tả
min	La valeur minimum de ProgressBar. La valeur par défaut est 0. Vous pouvez spécifier uniquement une autre valeur si vous utilisez API Level 26+ (Android 8.0+).
max	La valeur maximum de ProgressBar. La valeur par défaut est 100.
progress	La valeur temporaire de ProgresBar. La valeur par défaut est 0.


if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { // 26 (Android 8.0+)
    // Set Minimum value for ProgressBar. Work with API Level 26+ (Android 8.0+)
    progressBar.setMin(20);
}

progressBar.setProgress(25); // Default 0.
progressBar.setMax(200);  // Default 100.


<ProgressBar
    android:id="@+id/progressBar4"
    style="?android:attr/progressBarStyleHorizontal"
    android:max="200"
    android:progress="55"
    ... />

Indeterminate mode

Indeterminate mode (Mode indéterminé): Vous pouvez utiliser ce mode pour ProgressBar si vous ne pouvez pas déterminer le pourcentage du travail achevé.


<ProgressBar
    android:id="@+id/progressBar"
    style="?android:attr/progressBarStyleHorizontal"
    android:indeterminate="true"
    ... />


final ProgressBar progressBar = (ProgressBar) this.findViewById(R.id.progressBar_id);

progressBar.setIndeterminate(true);

2- ProgressBar Styles

ProgressBar dispose de différents styles déterminés par l'attribut style. Par défaut, le style de ProgressBar est une roue tournante (Spinning wheel).

À l'écran de conception, quand vous faites glisser une ProgressBar dans l'interface, Android Studio génère (generate) un code XML de ProgressBar avec la valeur par défaut de l'attribut style.

ProgressBar(s)


<!-- Default Spinning Wheel ProgressBar Style -->
<ProgressBar
    android:id="@+id/progressBar"
    style="?android:attr/progressBarStyle"
    ...  />


<!-- Default Horizontal ProgressBar Style -->
<ProgressBar
    android:id="@+id/progressBar"
    style="?android:attr/progressBarStyleHorizontal"
    ...  />

Vous pouvez changer la valeur de l'attribut style:


<ProgressBar
    android:id="@+id/progressBar15"
    style="@android:style/Widget.ProgressBar.Large"  
    ... />

Spinning Wheel ProgressBar Styles

Ci-dessous les illustrations de Spinning Wheel ProgressBar avec différents Style.

style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Small"
style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Small.Inverse"
style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large"
style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large.Inverse"
style="@android:style/Widget.ProgressBar.Large"
style="@android:style/Widget.ProgressBar.Large.Inverse"

Spinning Wheel ProgressBar Styles Example


<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView11"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.Light.ProgressBar.Small"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ProgressBar
        android:id="@+id/progressBar11"
        style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Small"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView11" />

    <TextView
        android:id="@+id/textView12"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.Light.ProgressBar.Small.Inverse"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar11" />

    <ProgressBar
        android:id="@+id/progressBar12"
        style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Small.Inverse"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView12" />

    <TextView
        android:id="@+id/textView13"
        android:layout_width="0dp"
        android:layout_height="21dp"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.Light.ProgressBar.Large"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar12" />

    <ProgressBar
        android:id="@+id/progressBar13"
        style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView13" />

    <TextView
        android:id="@+id/textView14"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.Light.ProgressBar.Large.Inverse"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar13" />

    <ProgressBar
        android:id="@+id/progressBar14"
        style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large.Inverse"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView14" />

    <TextView
        android:id="@+id/textView15"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.ProgressBar.Large"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar14" />

    <ProgressBar
        android:id="@+id/progressBar15"
        style="@android:style/Widget.ProgressBar.Large"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="80"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView15" />

    <TextView
        android:id="@+id/textView16"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.ProgressBar.Large.Inverse"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar15" />

    <ProgressBar
        android:id="@+id/progressBar16"
        style="@android:style/Widget.ProgressBar.Large.Inverse"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView16" />

</androidx.constraintlayout.widget.ConstraintLayout>

Il y a certains Style(s) de noms différents mais il est difficile de percevoir la différence en termes d'interface. Par exemple: Widget.ProgressBar.Large & Widget.ProgressBar.Large.Inverse.

Widget.ProgressBar.Large: Destiné à être utilisé sur un fond sombre.
Widget.ProgressBar.Large.Inverse: Destiné à être utilisé sur un fond clair.

Notez que vous ne réalisez pas la différence quand l'application marche sur Android Emulator (L'émulateur d'Android). Vous pouvez percevoir la différence uniquement quand l'application marche sur les appareils à très haute définition.

Horizontal ProgressBar Styles

style="?android:attr/progressBarStyleHorizontal" (Default of Horizontal ProgressBar)
style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Horizontal"
style="@android:style/Widget.DeviceDefault.ProgressBar.Horizontal"
style="@android:style/Widget.Holo.Light.ProgressBar.Horizontal"
style="@android:style/Widget.Material.Light.ProgressBar.Horizontal"
style="@android:style/Widget.Holo.ProgressBar.Horizontal"
style="@android:style/Widget.Material.Light.ProgressBar.Horizontal"
style="@android:style/Widget.ProgressBar.Horizontal"

Horizontal ProgressBar Styles Example


<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView51"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="(Default)"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ProgressBar
        android:id="@+id/progressBar51"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="25"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.555"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView51" />

    <TextView
        android:id="@+id/textView52"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.Light.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar51" />

    <ProgressBar
        android:id="@+id/progressBar52"
        style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="50"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView52" />

    <TextView
        android:id="@+id/textView53"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.DeviceDefault.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar52" />

    <ProgressBar
        android:id="@+id/progressBar53"
        style="@android:style/Widget.DeviceDefault.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="30"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView53" />

    <TextView
        android:id="@+id/textView54"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.Holo.Light.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar53" />

    <ProgressBar
        android:id="@+id/progressBar54"
        style="@android:style/Widget.Holo.Light.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="80"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView54" />

    <TextView
        android:id="@+id/textView55"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.Material.Light.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar54" />

    <ProgressBar
        android:id="@+id/progressBar55"
        style="@android:style/Widget.Material.Light.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="70"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView55" />

    <TextView
        android:id="@+id/textView56"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.Holo.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar55" />

    <ProgressBar
        android:id="@+id/progressBar57"
        style="@android:style/Widget.Holo.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="55"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView56" />

    <TextView
        android:id="@+id/textView58"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.Material.Light.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar57" />

    <ProgressBar
        android:id="@+id/progressBar58"
        style="@android:style/Widget.Material.Light.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="90"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView58" />

    <TextView
        android:id="@+id/textView59"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:text="Widget.ProgressBar.Horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar58" />

    <ProgressBar
        android:id="@+id/progressBar59"
        style="@android:style/Widget.ProgressBar.Horizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:progress="75"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView59" />

</androidx.constraintlayout.widget.ConstraintLayout>

3- Exemple: ProgressBar (Thread, Handler)

Dans cet exemple, je crée deux ProgressBar(s) à l'horizontal.

La première ProgressBar est établie en Determinate mode (Mode déterminé) qui affiche un processus dont le pourcentage de travail achevé est indiqué.
La deuxième ProgressBar est établie en Indeterminate mode (Mode indéterminé) qui affiche un processus dont le pourcentage de travail achevé n'est pas indiqué.

Ci-dessous un aperçu de l'exemple:

Dans cet exemple, j'utilise Thread pour exécuter la mission, par exemple: télécharger un fichier ou mettre à jour les enregistrements dans les données. Ensuite, j'utilise Handler pour mettre à jour l'informaton dans l'interface.

* Thread + Handler *


private void doStartProgressBar2()  {
    this.progressBar2.setIndeterminate(true);

    Thread thread = new Thread(new Runnable()  {

        @Override
        public void run() {
            // Update interface
            handler.post(new Runnable() {
                public void run() {
                    textViewInfo2.setText("Working...");
                    buttonStart2.setEnabled(false);
                }
            });
            // Do something ... (Update database,..)
            SystemClock.sleep(5000); // Sleep 5 seconds.

            progressBar2.setIndeterminate(false);
            progressBar2.setMax(1);
            progressBar2.setProgress(1);

            // Update interface
            handler.post(new Runnable() {
                public void run() {
                    textViewInfo2.setText("Completed!");
                    buttonStart2.setEnabled(true);
                }
            });
        }
    });
    thread.start();
}

Dans Android Studio, créer un nouveau projet:

File > New > New Project > Empty Activity
- Name: ProgressBarHorizontalExample
- Package name: org.o7planning.progressbarhorizontalexample
- Language: Java

Concevoir l'interface de l'exemple:

main_activity.xml


<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView_label1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:text="Determinate mode:"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ProgressBar
        android:id="@+id/progressBar1"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView_label1" />

    <TextView
        android:id="@+id/textView_info1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:gravity="center_horizontal"
        android:text="(Info)"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar1" />

    <Button
        android:id="@+id/button_start1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:text="Start"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView_info1" />

    <TextView
        android:id="@+id/textView_label2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:text="Indeterminate mode:"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button_start1" />

    <ProgressBar
        android:id="@+id/progressBar2"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:indeterminate="true"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView_label2" />

    <TextView
        android:id="@+id/textView_info2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:gravity="center_horizontal"
        android:text="(Info)"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/progressBar2" />

    <Button
        android:id="@+id/button_start2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:text="Start"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView_info2" />

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.java


package org.o7planning.progressbarhorizontalexample;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private Button buttonStart1;
    private Button buttonStart2;
    private ProgressBar progressBar1;
    private ProgressBar progressBar2;

    private TextView textViewInfo1;
    private TextView textViewInfo2;

    private Handler handler = new Handler();

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

        this.progressBar1 = (ProgressBar) this.findViewById(R.id.progressBar1);
        this.progressBar2 = (ProgressBar) this.findViewById(R.id.progressBar2);
        this.progressBar2.setIndeterminate(false);

        this.textViewInfo1 = (TextView) this.findViewById(R.id.textView_info1);
        this.textViewInfo2 = (TextView) this.findViewById(R.id.textView_info2);


        this.buttonStart1 = (Button) this.findViewById(R.id.button_start1);
        this.buttonStart2 = (Button) this.findViewById(R.id.button_start2);

        this.buttonStart1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                doStartProgressBar1();
            }
        });

        this.buttonStart2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                doStartProgressBar2();
            }
        });

    }

    private void doStartProgressBar1()  {
        final int MAX = 110;
        this.progressBar1.setMax(MAX);

        Thread thread = new Thread(new Runnable()  {

            @Override
            public void run() {
                handler.post(new Runnable() {
                    public void run() {
                        buttonStart1.setEnabled(false);
                    }
                });
                for( int i =0; i < MAX; i++) {
                    final int progress = i + 1;
                    // Do something (Download, Upload, Update database,..)
                    SystemClock.sleep(20); // Sleep 20 milliseconds.

                    // Update interface.
                    handler.post(new Runnable() {
                        public void run() {
                            progressBar1.setProgress(progress);
                            int percent = (progress * 100) / MAX;

                            textViewInfo1.setText("Percent: " + percent + " %");
                            if(progress == MAX)  {
                                textViewInfo1.setText("Completed!");
                                buttonStart1.setEnabled(true);
                            }
                        }
                    });
                }
            }
        });
        thread.start();
    }

    private void doStartProgressBar2()  {
        this.progressBar2.setIndeterminate(true);

        Thread thread = new Thread(new Runnable()  {

            @Override
            public void run() {
                // Update interface
                handler.post(new Runnable() {
                    public void run() {
                        textViewInfo2.setText("Working...");
                        buttonStart2.setEnabled(false);
                    }
                });
                // Do something ... (Update database,..)
                SystemClock.sleep(5000); // Sleep 5 seconds.

                progressBar2.setIndeterminate(false);
                progressBar2.setMax(1);
                progressBar2.setProgress(1);

                // Update interface
                handler.post(new Runnable() {
                    public void run() {
                        textViewInfo2.setText("Completed!");
                        buttonStart2.setEnabled(true);
                    }
                });
            }
        });
        thread.start();
    }
}

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