printing from webview android application - android-studio

I have created a WebView android app for my webapp Point of sale system, and it's not printing from webview app (from webapp through explorer working fine), I have looked for solution everywhere but no use, any help?

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I have configured Universal link for my Xamarin.iOS. But when I click on the app I always redirect to the web site. Then I created a new native iOS application and it works fine. then I created an empty Xamarin.iOS project and it doesn't work. Do I need to do something additional for Xamarin.iOS than iOS native?

Messenger Bot generic template buttons and subtitle not showing in android app

I am in middle of building a messenger chat-bot which was working fine but now the buttons and subtitle are not showing in my android phone (I have Xiaomi Poco F1). I have not tested it with any ios device. But it seems to work just fine in browser. I am not able to figure out if this an issue from my side or some bug in messenger app.
Chrome Messenger Image
Android Messenger App Image
The issue was with the App. I re-installed it after clearing cache and data. Now everything is working fine.

Issues with kudan camera while merged with native android application

I got a requirement where I need to merge the unity application with the native android app, I am using Kudan plugin in the unity 3d, I have exported the unity project to the android studio and created a new app in the android studio and merged the Unity app to native android app.Once I tested the build, everything is working fine except a camera(Kudan camera).Ar camera is not working as expected.I am using free ver of Kudan plugin.I have tested it without merging with the native app and it is working fine, in this case, If I merge unity app with native android app camera is not working fine.
I am facing same issue, it will stop working camera torch of system too when you extending class ARActivity you can't able to access setFlashMode() method
Test this case in your phone by opening application and then trying to on/off torch.
Torch will be disable from system.
After then try with extending Activity class
recently i have ask same question

android studio layout textbox not show on mobile app when running

I am developing a mobile app in Android Studio, using page layout.
I have created a profile page, it contains an image and two buttons. So my doubt is if I add a textbox above the image, it is successfully created, but when I run my app the textbox is not visible.
How can I solve that?

Can I launch the native Foursquare iPhone or Android app from a mobile web page?

Does anyone know if it's possible to launch the iPhone or Android Foursquare app from a mobile web page? Is there a custom URL scheme we can use?
Our client would like to give users the option to use the app if they have it installed instead of the website.
The URLs for launching the Foursquare native app can be found here: https://developer.foursquare.com/resources/client.html
As suggested in that site, for Android it will fallback to mobile view if the app is not installed, for iPhone you should follow the UIApplication reference, specifically canOpenUrl: and openUrl:
For the android you might want to look at this page:
Launch custom android application from android browser
For the iphone:
iPhone apps: Can I open an app from a link in a website?

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