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I have used advanced_in_app_review plugin, but rating dialog not popup

I have used advanced_in_app_review plugin, but rating dialog not popup
void initState() {
super.initState();
//initPlatformState(),
AdvancedInAppReview()
.setMinDaysBeforeRemind(7)
.setMinDaysAfterInstall(2)
.setMinLaunchTimes(2)
.monitor();
}
I removed initPlatformState() because it is useless.
now it seems that rating dialog not showing automatically, Should I add initPlatformState()?
or is it the issue of this plugin?
https://github.com/eeoom/advanced_in_app_review/issues/2

Using the cascade operator when calling multiple methods on one object is safer:
AdvancedInAppReview()
..setMinDaysBeforeRemind(7)
..setMinDaysAfterInstall(2)
..setMinLaunchTimes(2)
..monitor();

It is okay to remove initPlatformState().
It's not an issue of plugin.
In app reviews do not show up every time. The operating system decides when the alert is shown. The parameters of the plug in indicate only the minimum values before the system is asked to show the dialog, but as I said, the system decides afterwards if the dialog is shown.
Please note also that it is not shown in debug mode of android.

Is there a material component for Simple Dialog?

As mentioned here, under the different types of Dialogs, the Simple Dialog is listed. Is there a dialog builder that would automatically generate such dialog? Is it just an alert dialog with a custom theme?
I would like to replicate a dialog similar to the new permissions dialogs used in Android 10.
I have tried using the material alert dialog builder:
new MaterialAlertDialogBuilder(context)
.setTitle("Title")
.setMessage("Message")
.setPositiveButton("Ok", null)
.setNegativeButton("Ok", null)
.show();
But this shows the options horizontally, whereas I would like to have them vertically. I have many custom dialogs in my app so I could create another one exactly as I need it, but I wanted to get a better understanding of what's ready to use with the material components instead.
For that reason I downloaded the material-components-android project from github, where I found the DialogMainDemoFragment which lists different types of dialogs. The one that is closer to what I want is created like so:
addDialogLauncher(
dialogLaunchersLayout,
R.string.long_title_message_too_long_actions,
new MaterialAlertDialogBuilder(getContext())
.setTitle(getResources().getString(R.string.long_title))
.setMessage(message)
.setPositiveButton(getResources().getString(R.string.too_long_positive), null)
.setNegativeButton(getResources().getString(R.string.too_long_negative), null)
.setNeutralButton(getResources().getString(R.string.too_long_neutral), null));
where
private void addDialogLauncher(
ViewGroup viewGroup, #StringRes int stringResId, AlertDialog.Builder alertDialogBuilder) {
MaterialButton dialogLauncherButton = new MaterialButton(viewGroup.getContext());
dialogLauncherButton.setOnClickListener(v -> alertDialogBuilder.show());
dialogLauncherButton.setText(stringResId);
viewGroup.addView(dialogLauncherButton);
}
but I can't see where the styling/theming is being determined.

There is material theme which values you can override.
Exactly if I not mistaken you need those styles
<style name="MaterialAlertDialog.MaterialComponents.Title.Panel.CenterStacked" parent="Base.MaterialAlertDialog.MaterialComponents.Title.Panel">
<item name="android:orientation">vertical</item>
</style>

AlertDialog displays briefly and disappears

I have an android app written with Xamarin which needs to notify from a class that does not have good access to an activity or context, so I am using a System Alert dialog to display the message.
In Android 4.4, the pop-up appears and the user must tap the OK button to clear it. The rest of the screen is dim and the user cannot interact with any other UI elements until the pop-up is cleared. This is the desired behavior.
In Android 5.0 (tested on a Galaxy S6 and a tablet), the pop-up will appear for about one second and then disappear without requiring any interaction whatsoever. I have done a number of Google and SO searches to no avail.
private static void ShowSystemAlert(Context context, string message)
{
var dialog = new AlertDialog.Builder(context, Android.Resource.Style.ThemeHoloLightDialog)
.SetNeutralButton("OK", (alertSender, args) => {})
.SetMessage(message)
.Create();
dialog.SetCanceledOnTouchOutside(false);
dialog.Window.SetType(WindowManagerTypes.SystemAlert);
dialog.Show();
dialog.Window.DecorView.SetBackgroundResource(Android.Resource.Color.Transparent); //remove strange small border around dialog
}
How can I get the pop-up to work like it does in Android 4.4? The best answer will work in Lollipop, Marshmallow, and Nougat.
I would also very much appreciate an explanation as to why this happened, or any background information you can give. Thanks!

Is it xamarin? Create your alertdialog with just the context, don't use the theme.

How to achieve custom dialog at the bottom of the screen in Android

Which component do I choose to achieve custom dialog at the bottom as shown in the below image? Shall I choose alertdialog,popupwindow, or fragmentdialog?

Try this
BottomSheetDialog dialog = new BottomSheetDialog(YourActivity.this);
dialog.setContentView(YourView);
dialog.show();

Edit: I didn't there was a built in component in Android to do so. Good to know! Also, check this out:
https://medium.com/glucosio-project/moving-from-dialogs-to-bottomsheetdialogs-on-android-15fb8d140295#
I would recommend FragmentDialog without a doubt.
It's so much easier to create a customized Dialog regarding location & layout design.

Kotlin code for run custom ButtomSheetDialog (run inside Activity)
var CustomSelectProfilePicBottomSheetDialog = BottomSheetDialog(this)
val layoutButtomSheetView = this.layoutInflater.inflate(R.layout.ly_custom_buttom_sheet_frg_dialog, null)
CustomSelectProfilePicBottomSheetDialog.setContentView(layoutButtomSheetView)
CustomSelectProfilePicBottomSheetDialog.show()

Activity Background change dynamic

I have just started developing an android weather app and I was wondering how to change activity background automatically. For example, in daytime it should show day time or in the night it should show night photos.
This is the app of Sony which has a feature (mentioned above)
Check the screenshots.

Okay Credit goes to SteD;so for you check this(beginner's guide)
Follow this
//set an ID for Relative Layout in content_main.xml(Android Studio)
RelativeLayout rlayout=(RelativeLayout)findViewById(R.id.rlayout);
if(something){Drawable drawble=getResource().getDrawable(R.drawable.your_image);rlayout.setBackgroundDrawable(drawable);}
//If it works,destroy the upvote

The only automatic way is the newly released (Day/Night theme for android app)
For finer control you check the condition yourself and call the normal Java methods, like this:
if(something) {
getWindow()
.setBackgroundDrawable(ContextCompat.getDrawable(this, R.drawable.image));
}
of if you don't care about the newly introduced context themed styling, you just call the deprecated method (which will keep working without issues for all the foreseeable future)
if(something) {
getWindow()
.setBackgroundDrawable(
getResources().getDrawable(R.drawable.image));
}