MaterialComponents theme alert dialog buttons

Question

Recently I switched from support library to com.google.android.material:material:1.0.0

But now I have a problem, in this pages there's a note https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md

Note: Using a Material Components theme enables a custom view inflater which replaces default components with their Material counterparts. Currently, this only replaces Button XML components with MaterialButton.

And the theme I am using

Theme.MaterialComponents.Light.NoActionBar

does exactly what it says in that note, it replaces AlertDialog Buttons to MaterialButtons but the problem is that by default MaterialButtons are colored background and now the buttons looks like this:

How can I make them borderless and backgroundless again?

PS I am using alert builder to create alert dialogs:

android.app.AlertDialog.Builder

Solution 1

I figured out what was causing this problem. I need to use different AlertDialog class:

androidx.appcompat.app.AlertDialog

When I switched to this everything started working as expected. Here's where I found the solution:

https://github.com/material-components/material-components-android/issues/162

Solution 2

When using com.google.android.material:material:1.0.0 and androidx.appcompat.app.AlertDialog you can customize each button in the buttonBar by using Widget.MaterialComponents.Button.TextButton as parent.

val builder: AlertDialog.Builder = AlertDialog.Builder(ContextThemeWrapper(context, R.style.AlertDialogTheme))

Use the default layout or add a custom by builder.setView(R.layout.my_dialog)

In your styles:

<style name="AlertDialogTheme" parent="Theme.MaterialComponents.Light.Dialog.Alert">
    <item name="buttonBarPositiveButtonStyle">@style/Alert.Button.Positive</item>
    <item name="buttonBarNegativeButtonStyle">@style/Alert.Button.Neutral</item>
    <item name="buttonBarNeutralButtonStyle">@style/Alert.Button.Neutral</item>
</style>

<style name="Alert.Button.Positive" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="backgroundTint">@color/transparent</item>
    <item name="rippleColor">@color/colorAccent</item>
    <item name="android:textColor">@color/colorPrimary</item>
    <item name="android:textSize">14sp</item>
    <item name="android:textAllCaps">false</item>
</style>

<style name="Alert.Button.Neutral" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="backgroundTint">@color/transparent</item>
    <item name="rippleColor">@color/colorAccent</item>
    <item name="android:textColor">@color/gray_dark</item>
    <item name="android:textSize">14sp</item>
</style>

Solution 3

If you are using the Material Components library the best way to have an AlertDialog is to use the MaterialAlertDialogBuilder.

new MaterialAlertDialogBuilder(context)
            .setTitle("Dialog")
            .setMessage("Lorem ipsum dolor ....")
            .setPositiveButton("Ok", /* listener = */ null)
            .setNegativeButton("Cancel", /* listener = */ null)
            .show();

It is the default result:

If you want also to apply a different style or color to the buttons you can check this answer.

Solution 4

First, it's better to use use MaterialAlertDialog if you are using Material Theme.

You can read more here – Material.io → Theming dialogs

MaterialAlertDialogBuilder(context)
            .setTitle(R.string.confirm)
            .setMessage(R.string.logout)
            .setPositiveButton(R.string.logout_alert_positive) { _, _ -> activity?.logout() }
            .setNegativeButton(R.string.never_mind, null)
            .show()

 

This is the layout.xml of the MaterialAlertDialog actions. As you can see there are 3 buttons and each has their own styles. So, here is how you can change them.

Step 1: Tell Android that you want to alter the default MaterialAlertDialog theme.

<style name="Base.AppTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar">
    ...
    <item name="materialAlertDialogTheme">@style/AlertDialog</item>
    ...
</style>

Step 2: Tell Android that you want to alter a specific button style. buttonBarNeutralButtonStyle, buttonBarNegativeButtonStyle or buttonBarPositiveButtonStyle

<style name="AlertDialog" parent="ThemeOverlay.MaterialComponents.MaterialAlertDialog">
    <item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
</style>

Step 3: Define your custom style

<style name="NegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="android:textColor">#FF0000</item>
</style>

Solution 5

I tested the above answers. Although I got a good idea, none worked for my case. So, this is my answer.

1. Make sure to have android:theme="@style/AppMaterialTheme" in your manifest file under Application or Activity.

2. Open your Styles.xml file and change it based on the following.

   <style name="AppMaterialTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar">
       <item name="colorPrimary">@color/primaryBlue</item>
       <item name="colorPrimaryDark">@color/primaryBlue</item>
       <item name="colorAccent">@color/colorAccent</item>
       <item name="colorControlActivated">@color/primaryBlue</item>
       <item name="colorControlHighlight">@color/colorAccent_main</item>
       <item name="colorButtonNormal">@color/white</item>
   
       <item name="materialAlertDialogTheme">@style/AlertDialogMaterialTheme</item>
   </style>
   
   <style name="AlertDialogMaterialTheme" parent="ThemeOverlay.MaterialComponents.MaterialAlertDialog">
       <item name="buttonBarPositiveButtonStyle">@style/Alert.Button.Positive</item>
       <item name="buttonBarNegativeButtonStyle">@style/Alert.Button.Negative</item>
   </style>
   
   <style name="Alert.Button.Positive" parent="Widget.MaterialComponents.Button.UnelevatedButton">
       <item name="android:fillColor">@color/color_0054BB</item>
       <item name="android:textColor">@color/white</item>
       <item name="android:textAllCaps">false</item>
       <item name="android:textSize">14sp</item>
       <item name="rippleColor">@color/colorAccent_main</item>
   </style>
   
   <style name="Alert.Button.Negative" parent="Widget.MaterialComponents.Button.OutlinedButton">
       <item name="strokeColor">@color/color_0054BB</item>
       <item name="android:textColor">@color/color_0054BB</item>
       <item name="android:textAllCaps">false</item>
       <item name="android:textSize">14sp</item>
       <item name="android:layout_marginEnd">8dp</item>
       <item name="rippleColor">@color/colorAccent_main</item>
   </style>
   

3. You won't need to apply the theme to your AlertDialog as your Activity applies the theme to it. So, create the dialog normally.

The result will be.

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Comments

[sushrut619]

I migrated my code to androidx using the Android Studio's 'Migrate to AndroidX' option/feature but this library was not updated to AndroidX automatically. This issue for me was resolved when I updated the import manually as the answer suggests

[Leonardo Sibela]

This is what I was looking for when trying to style my dialogs. All answers I found were not using AndroidX.

[Leonardo Sibela]

I'm just not sure why you're setting up textAllCaps to false. I usually see it set to true on dialogs (the only exception was a Material Design example from google called Crane)

[Rob]

@LeonardoSibela Yea, default behaviour sets all buttons to textAllCaps=true, updated

[gMale]

I wish I could upvote this 50 times. I spent like two hours trying to just color stupid dialogs. Note that you should also use MaterialAlertDialogBuilder instead.

[Mateus]

You save me! Thanks!

[funct7]

@gMale 's comment saved time for me.

[dave o grady]

Not all heroes wear capes!

[LukaszTaraszka]

I don't know why, by "buttonBarPositiveButtonStyle" is not working for me but "android:buttonBarPositiveButtonStyle" is working properly.

[LukaszTaraszka]

The style is not applying to PositiveButton. The same with Negative one.

[CoolMind]

Replacing AlertDialog.Builder with MaterialAlertDialogBuilder didn't change a color of buttons. See answers below to change the theme.

[Gabriele Mariotti]

@CoolMind The question is not how to change the button color.

[Nantoka]

Short before midnight a big thank you. You saved me an hour of sleep.