MaterialTabs | Custom Tabs with Material Design effects | User Interface library

I am using Angular and the MaterialTabs module.

I have a list of tabs in my component that I display using mat-tabs and ngFor, plus one more disabled tab with a plus button. When clicking the plus button, I would like to add a new tab and immediately focus on that tab. (Similarly to how browser tabs work.)

This is how it looks like:

I do this by two-way property-binding to the selectedIndex property of the mat-tab-group and setting it from my component inside the button click event handler.

You can see that the tabgroup's property and the property bound to it is equal, when it works.

However, I ran into a problem, where if I freshly load the page and click on the button first, the property binding somehow breaks:

Clicking once on any of the Tabs seems to fix the issue forever. The issue comes back when you reload the page.

From my understanding the following property binding would make sure that the values will always be equal and if one of them changes the other will follow:

I am trying to eliminate a bug that is causing my React Native 0.53.3 application to crash after it opens the splash screen.

How can I fix this issues while compiling release build in Android Studio 3.0 RC2

Error:Error: commons-logging defines classes that conflict with classes now provided by Android. Solutions include finding newer versions or alternative libraries that don't have the same problem (for example, for httpclient use HttpUrlConnection or okhttp instead), or repackaging the library using something like jarjar. [DuplicatePlatformClasses]

Error:Error: httpclient defines classes that conflict with classes now provided by Android. Solutions include finding newer versions or alternative libraries that don't have the same problem (for example, for httpclient use HttpUrlConnection or okhttp instead), or repackaging the library using something like jarjar. [DuplicatePlatformClasses]

My build.gradle is

Title of the last tab in my ViewPager doesn't show, in this case i have 4 tabs but only the first 3 tabs are shown but not the last one although I can swipe to the fourth tab

Code

I'm using on my app Neokree Materialtabs. I can not translate tab title. I tired so many strings codes. Android Studio building to apk and don't gives me error but when I launch app it stopping by self.

Code tabs title:

My project is clean. I bought it from codecanyon. Now I want to change the api version 23 to 28. Below I've shared two gradle files that need to change api level version 23 to 28 for playstore purpose. How can I change this? I need to edit my Gradle and replace the version 23 to 28 and comment the code.

gradle.build (app)

I have an old volley configuration in my app. The app was built to target lollipop devices few years ago. I have also used an arcmenu library in same configuration like compile project('volley') and compile project('arcmenu').

Recently, I have reopened that project and tried running it again but it gives me this error:

The project worked and was going well. Then an update came and I decided to install it. Now an error is produced during the assembly. I have no idea how to fix it.

Error:

Could not find method android() for arguments [build_bzm82urvcqwncoovmlc943fzt$_run_closure1@7d47c922] on project ':app' of type org.gradle.api.Project.

build.grandle

I'm developing an app that send an email using the JavaMail API inside a fragment. The whole app is working just fine, but when I click on the button to send the email, the app crashes. I've tried to change the context in the SendMail code but it didn't solved my problem. I'm posting the Debug error that i'm getting and my Java code, if you need anything else, just ask me. Any help is really welcome.

SendMail.Java