Android Alert Dialog with extra background - android

I recently migrated my app to Material Design and I stumbled upon this problem with my Alert Dialogs:
I'm applying the dialog style like this:
<item name="android:alertDialogTheme">#style/Theme.AlertDialog</item>
and Theme.AlertDialog looks like this:
<style name="Theme.AlertDialog" parent="Base.V14.Theme.AppCompat.Dialog">
<item name="colorPrimary">#color/theme_primary</item>
<item name="colorPrimaryDark">#color/theme_primary_dark</item>
<item name="colorAccent">#color/theme_accent_dark</item>
</style>
This is happening on my Kitkat device and it works fine on Lollipop. Can you help me with getting rid of that outer background?


The point is here:
<style name="Theme.AlertDialog" parent="Base.V14.Theme.AppCompat.Dialog">
...
<item name="colorPrimary">#color/theme_primary</item>
<item name="colorPrimaryDark">#color/theme_primary_dark</item>
<item name="colorAccent">#color/theme_accent_dark</item>
...
<item name="android:windowBackground">#android:color/transparent</item>
...
</style>


As ironman told me here, be sure that you import the right class.
Right : import android.support.v7.app.AlertDialog;
Wrong : import android.app.AlertDialog;


Use the theme in parent
AlertDialog.THEME_DEVICE_DEFAULT_LIGHT


Add below styles . You have to customise background also.
<item name="android:windowFrame">#null</item>
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:windowTitleStyle">#null</item>
<item name="android:windowAnimationStyle">#android:style/Animation.Dialog</item>
<item name="android:backgroundDimEnabled">false</item>
<item name="android:background">#android:color/transparent</item>
Using below also works
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:background">#android:color/transparent</item>
Also You can set in your code by using
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
and this should be before setContentView
dialog.setContentView(R.layout.dialog);


I had the exact same symptom but for me it was actually that I had used the standard frameworks AlertDialog (and its Builder) instead of android.support.v7.app.AlertDialog, switching to use the one from the support library fixed the issue for me.

Related

MaterialComponents theme alert dialog buttons

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

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

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>

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.

I tested the above answers. Although I got a good idea, none worked for my case. So, this is my answer.
Make sure to have android:theme="#style/AppMaterialTheme" in your manifest file under Application or Activity.
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>
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.

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>

Found another solution for this with using MaterialComponents here: https://issuetracker.google.com/issues/116861837#comment9
<style name="Theme.Custom.Material.Alert.Dialog.Light" parent="Theme.MaterialComponents.Light.Dialog.Alert">
<item name="materialButtonStyle">#style/Widget.AppCompat.Button.Borderless</item>
</style>
<style name="Theme.Custom.Material.Base.Light" parent="Theme.MaterialComponents.Light.NoActionBar">
<item name="android:dialogTheme">#style/Theme.Custom.Material.Alert.Dialog.Light</item>
<item name="android:alertDialogTheme">#style/Theme.Custom.Material.Alert.Dialog.Light</item>
....
</style>
Though it is still not "intended behavior" to me.

If you don't want to use androidx.appcompat.app.AlertDialog, you can just redefine the style of the dialog buttons:
In your style.xml :
<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
...
<item name="android:buttonBarButtonStyle">#style/DialogButton</item>
...
</style>
<style name="DialogButton" parent="Widget.MaterialComponents.Button.TextButton"/>

If you are using the com.android.support:design:28.0.0 library, using android.support.v7.app.AlertDialog works as expected.

Android dialog doesn't click away anymore

I removed the black background of the dialog popup, but now it doesn't close after clicking around the dialog. Backbutton works fine, I'm guessing that an item is missing from the custom theme.
Here is the custom theme I am using.
<style name="customDialogTheme">
<item name="android:windowFrame">#null</item>
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:windowTitleStyle">#null</item>
<item name="android:windowAnimationStyle">#android:style/Animation.Dialog</item>
<item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
<item name="android:backgroundDimEnabled">false</item>
<item name="android:background">#android:color/white</item>
</style>
NOTE: Even if i re-enable the black background by setting the <item name="android:backgroundDimEnabled">false</item> to true, it still doesn't click away. I'm pretty sure that I am missing a parameter.
Edit: Only change I made in the java code is:
setStyle(DialogFragment.STYLE_NORMAL, R.style.customDialogTheme);

Seems like I just needed to add parent="Theme.AppCompat.Dialog" to the style.
EDIT: The missing parameter was <item name="android:windowCloseOnTouchOutside">true</item>

How to use Theme.AppCompat.Light.Dialog on Android 6.0?

I want to display activity which should look like dialog. I'm using theme inherited from Theme.AppCompat.Light.Dialog to achievie that . This solution works quite well on Android 4.x and Android 5.x. Unfortunately on Android 6 it doesn't. I see black background instead of nice transparency.
Theme code:
<style name="AppTheme.Popup" parent="Theme.AppCompat.Light.Dialog">
<item name="windowNoTitle">true</item>
</style>
Activity code - just extended from AppCompatActivity
I was trying to fix using some another settings:
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:backgroundDimEnabled">false</item>
Without any success :(

I think you need to sub theme Theme.AppCompat.Light.Dialog.Alert not Theme.AppCompat.Light.Dialog, so your theme will be like:
<style name="AppTheme.Popup" parent="Theme.AppCompat.Light.Dialog.Alert">
<item name="windowNoTitle">true</item>
</style>

Libgdx android app remove fullscreen and show titlebar

Here is a link to a doubt i have regarding my app.Any kind of help to solve this will be appreciated.
https://gamedev.stackexchange.com/q/103610/68334

Alright, after checking through the files, I believe the following configurations will work for your case.
In styles.xml, declares GdxTheme.
<style name="GdxTheme" parent="android:Theme">
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:colorBackgroundCacheHint">#null</item>
<item name="android:windowAnimationStyle">#android:style/Animation</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:windowFullscreen">false</item>
</style>
In AndroidManifest.xml, set application theme to android:theme="#style/GdxTheme".
This is all you will need to make the status bar visible.

Can't find source of TYPE_SYSTEM_ALERT

For a project I want to create my own window style. I mean something like this:
<style name="MyFloatingWindow">
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:background">#android:color/transparent</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowNoTitle">true</item>
</style>
To get some ideas how I can implement my ideas I want to look into the style source of andriod but I can't find it. What is the original style of WindowManager.LayoutParams.TYPE_SYSTEM_ALERT?
Or is it possible to create a new layout style with TYPE_SYSTEM_ALERT as parent? What do I have to write as parent?
<style name="MyOverlay" parent="android:***">
</style>

The TYPE_SYSTEM_ALERT simply means that the windows are always on top of application windows. In multiuser systems shows only on the owning user's window. It has nothing to do with the any style of your window or how the window will look like.
There are a lot of pre-defined styles in styles.xml under frameworks\base\core\res\res\values. For example the AlertDialog.
<style name="AlertDialog">
<item name="fullDark">#android:drawable/popup_full_dark</item>
<item name="topDark">#android:drawable/popup_top_dark</item>
<item name="centerDark">#android:drawable/popup_center_dark</item>
<item name="bottomDark">#android:drawable/popup_bottom_dark</item>
<item name="fullBright">#android:drawable/popup_full_bright</item>
<item name="topBright">#android:drawable/popup_top_bright</item>
<item name="centerBright">#android:drawable/popup_center_bright</item>
<item name="bottomBright">#android:drawable/popup_bottom_bright</item>
<item name="bottomMedium">#android:drawable/popup_bottom_medium</item>
<item name="centerMedium">#android:drawable/popup_center_medium</item>
<item name="progressLayout">#android:layout/progress_dialog</item>
<item name="horizontalProgressLayout">#android:layout/alert_dialog_progress</item>
</style>

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