how do I pass arguments between fragments using navArgs?

So we can avoid this:

........

I am trying to use your library in my project, but I have the following error.

Layout code:

<?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"
android:orientation="vertical"
    tools:context=".views.ui.planner.NewPlannerActivity">

<com.google.android.material.appbar.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    app:elevation="0dp"
    app:layout_constraintTop_toTopOf="parent">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:layout_weight="1"
        tools:title="Step 1" />

</com.google.android.material.appbar.AppBarLayout>

<View
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:background="@color/inspectionColorPrimary"
    app:layout_constraintBottom_toTopOf="@id/guideline_stepper_middle"
    app:layout_constraintTop_toBottomOf="@id/appbar" />

<androidx.cardview.widget.CardView
    android:id="@+id/card_stepper"
    style="@style/Stepper.CardView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="32dp"
    app:layout_constraintTop_toBottomOf="@id/appbar"
    tools:layout_editor_absoluteX="32dp">

    <com.aceinteract.android.stepper.StepperNavigationView
        android:id="@+id/stepper"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingStart="16dp"
        android:paddingTop="20dp"
        android:paddingEnd="16dp"
        android:paddingBottom="20dp"
        app:stepperIconSize="20dp"
        app:stepperItems="@menu/menu_new_planner_stepper"
        app:stepperTextColor="@android:color/black"
        app:stepperTextSize="12sp"
        app:stepperTextAppearance="@style/Stepper.Label"
        app:stepperType="@string/stepper_type_tab"
        app:stepperWidgetColor="@color/inspectionColorAccent" />

</androidx.cardview.widget.CardView>

<androidx.fragment.app.FragmentContainerView
    android:id="@+id/frame_stepper"
    android:name="androidx.navigation.fragment.NavHostFragment"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintTop_toBottomOf="@id/guideline_stepper_middle"
    app:navGraph="@navigation/nav_planner_stepper" />

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/button_next"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/fab_margin"
    android:contentDescription="@string/lbl_next_step"
    android:src="@drawable/ic_visibility_off_black_24dp"
    app:backgroundTint="@color/inspectionColorAccent"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:tint="@android:color/white" />

<View
    android:id="@+id/guideline_stepper_middle"
    android:layout_width="match_parent"
    android:layout_height="1dp"
    app:layout_constraintBottom_toBottomOf="@id/card_stepper"
    app:layout_constraintTop_toTopOf="@id/card_stepper" />

</androidx.constraintlayout.widget.ConstraintLayout>

Here is a friendly suggestion:

I did not get why to include .idea directory to repository. On every workstation I import the project can be a different setup for formatting, java versions etc. So then I have to track (or be distracted by) unnecessary local changes. There are multiple suggestions on the web, which files should be excluded, most contain multiple files. I find that adding just .idea/ to .gitignore if simple enough and keep the repository clean.

Please tell me what is the reason of including .idea to the repository?

Library not support Arabic direction it's layout destroyed like attached photo

layoutDirection from rtl not work

The following code seems to be only supported by Kotlin:

as the setupWithNavController call in java asks for a second parameter, which must be an AnimBuilder. But AnimBuilder seems not to be available for Java:

Is there any workaround in order to make it work with Java as well?

Thanks a lot in advance!

I just stumbled on this problem. If I want to change a thing or two in the library and can attach to my app project it directly using the file system like this:

Add to settings.gradle

include ':android-stepper'
project(':android-stepper').projectDir = new File('../android-stepper/stepper')

Add to app/build.dependencies

dependencies {
  implementation project(':android-stepper')

With your library it does not work. Currently I am able to run it from maven version only.

Can you please describe how to a attach Android Stepper to an app project locally?

Currently library draws steps correctly only on 28, 29 and 30 APIs. This is bug or library doesn't provide support for lower APIs?

Screenshots from real devices:

Tab Stepper on Huawei P10 lite

Tab Stepper on ZUK Z2

Tested on real device:

• Doesn't work
  • API 26 (8.0), Huawei P10 lite
• Work perfectly
  • API 29 (10.0), Galaxy A70
  • API 29 (10.0), ZUK Z2

Tested on emulators:

• Doesn't work
  • API 24
  • API 27
• Work perfectly
  • API 28
  • API 29
  • API 30

Steps to reproduce

1. Download sample app
2. Run debug version

The stepper is working fine while testing on API 32, but on API 21 it gives the following error:

android.view.InflateException: Binary XML file line #7: Error inflating class com.aceinteract.android.stepper.StepperNavigationView
...
...
Caused by: java.lang.reflect.InvocationTargetException
...
...
Caused by: java.lang.NoSuchMethodError: No virtual method setTextAppearance(I)V in class Landroid/widget/TextView; or its super classes (declaration of 'android.widget.TextView' appears in /system/framework/framework.jar:classes2.dex)

deleted

I have this problem. sync gradle finished good, but compile with this exception.
Does anyone have such a problem? Or is it mine alone?

1: Task failed with an exception.

• What went wrong:
  Execution failed for task ':app:checkDebugAarMetadata'.

Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
Could not find com.github.acefalobi:android-stepper:0.3.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/com/github/acefalobi/android-stepper/0.3.0/android-stepper-0.3.0.pom
- https://jcenter.bintray.com/com/github/acefalobi/android-stepper/0.3.0/android-stepper-0.3.0.pom
- https://jitpack.io/com/github/acefalobi/android-stepper/0.3.0/android-stepper-0.3.0.pom
Required by:
project :app

Sorry, problems with my android studios

The tab type is not working properly. The white dots are showing differently after compiling.

Preview:

After compiling the app:

Is there any plan to add navigation fragments dynamically ?
@acefalobi

I'm using SafeArgs plugin to navigate and pass arguments between fragments. I also have nested fragments in my app.
First layer fragment shows the stepper and a FragmentContainerView which also has the setup code for the stepper:

val localNavHost = childFragmentManager.findFragmentById(R.id.order_host_view) as NavHostFragment
localController = localNavHost.navController
binding.stepper.setupWithNavController(localController)
}

When I navigate to a fragment using SafeArgs the stepper automatically updates and highlights the second step, but when I press the back button, it navigates back to the first step but the stepper is still highlighting the second one. Is this a bug with the stepper or am I doing something wrong?

PS: Both of my FragmentContainerView's have their app:defaultNavHost attribute set to true, one with the main nav_graph and one for the nested fragments and the stepper.

Does not work when using the binding
only works with directly setting up the layout on setContentView.

Getting this error while using binding :-

java.lang.ArrayIndexOutOfBoundsException: length=4; index=4

On event onStepChanged I can't get a correct reference to fragment being presented, would be good to wait animation finish and then dispatch the event.

Here is a question regarding your example of using the stepper.

In your example with numbered tabs stepper, the only way to go to next step is by clicking the button in the activity itself:

I would like to build some buttons for going back and forth in the fragment itself (because some processing logic is related to the steps).

What would be your advice to trigger jump between steps from inside the fragment?

Hi, great library!

Is there any way to know when a menu item has been clicked?
It would be nice to navigate when the user clicks on a stepper item.

Thanks for starting this cool project, although I'm having trouble getting it to work correctly.

I've created a sample project that follows your guide here: Project Link

For some reason the individual fragment steps don't show, only the stepper view.

In the sample project each step has a single text view, that shows one, two and three respectively for each step. As you can see those are not visible.

I want to change the color of widget when the step is competed, How I can achieve it.

Got a Failed to resolve: com.github.acefalobi:android-stepper:0.3.0 on a new android project. So I thought something was wrong on my end. But looking at jitpack, I can only see up to version 0.2.2 there.

Please let meknow if there's something I'm missing.

Please make currentStep mutable so that I can store the state in the ViewModel.

Hi @acefalobi , I just want to ask if there's a way how to auto center the current step after goToNextStep() or goToPreviousStep() click.

Hello,

I just want different colors for all stages, like for inprogress (Yellow), not completed(red) and completed (green).
Is there is any way to do it.

Problem

If running the test app on a device with API lower than 23, the following crash appears:
Caused by: java.lang.NoSuchMethodError: No virtual method setTextAppearance(I)V in class Landroid/widget/TextView; or its super classes (declaration of 'android.widget.TextView' appears in /system/framework/framework.jar:classes2.dex)

Cause

The error is caused by one of these lines:

The problem is, that the used method setTextAppearance appeared only in API23:
https://developer.android.com/reference/android/widget/TextView#setTextAppearance(int)

Solution

To resolve the error minimum SDK should be rasied to 23:

Or setTextAppearance should be wrapped into the following check:

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
  setTextAppearance(context, textAppearance)
else
  setTextAppearance(textAppearance)