FragM | Derived from https://githubcom/Syntopia/Fragmentarium/ | SDK library

I am trying to display an interactive map when user clicks on an address using map_view plugin. The problem that i have is every time i click on the address, the app crashes.

This is my project structure / configuration (in details):

lib\main.dart

Trying to run method in a layout file from my view model but, I keep getting error: cannot find symbol class ViewModels from my layout file. The layout file is a fragment. I tried invalidating the cache and resyncing but, it did not help. Do i need to add anything to the fragment itself? I seen people use data binding to launch the fragment but, I've read its optional.

Update: Took out OnClick method to test and it is still throwing error. I guess the problem is with my deceleration but, idk why. When i am editing the layout the path shows up when I type the view model name in.

Update2: Tried setting type in variable equal to path of activity that launches fragment for testing and it built just fine. There must be a way to add an import that is not my activity.

Layout file

I am trying to implement tablayout in a fragment which is already part of BottomNavigationView, I am facing a problem while navigating through navigation bar, There is a recycler view in a fragment which is the part of tablayout, now when I navigate between fragments via BottomNavigation the recyclerview becomes empty, and there is nothing in the logcat.

MainActivity

I'm trying to create method for fragment's adding, that i will be able to use many times, but i've faced some error. This is my method:

I want to use TabLayout inside Fragment. Here is my fragment_main.xml :

I am trying to write an android application that streams images taken from a first device, through the camera, to a second device with WiFi Direct.

I managed to connect two devices, and exchange images, from the phone gallery, but I am not able to exchange images directly from the camera.

Start of Edit

To obtain the camera frames I'm using an OpenCV module with wich my mainActivity extends a CvCameraViewListener.

this should be the class were I get my frames:

I'm working on an app that only uses a single Activity and switches out fragments as they are needed with the navigation drawer. Now we want to navigate back from one of these fragments by using the homeAsUp button in the ActionBar.

I have followed all the steps to set the button up. From disabling the navigation drawer setDrawerIndicatorEnabled(false) and calling setDisplayHomeAsUpEnabled(true) in the fragment's onCreateView(). I also set setHomeButtonEnabled(true) in the MainActivity's onCreate() however because the app is already in the MainActivity, we cannot specify a Parent Activity.

Whenever I run a fresh install of the app, the homeAsUp button works and is registered in the onBackPressed(), not onOptionsItemSelected() method. However, when I close the app and run it again the button does not even register clicks.

In onBackPressed() I check a few conditions, but it does not block the button press. In onOptionsItemSelected() I check for android.R.id.home.

Unfortunately, I cannot post the code.

This post describes what I'm trying to achieve: Switching between Android Navigation Drawer image and Up caret when using fragments