CircleImageView | Android 圆形ImageView，可以设置五角星形，可设置边框（border） | Android library

I'm a cs student and now I have to write an app using firebase and android studio for a project.

I'm so new in this and now I faced a problem. in my FindFriends activity when i run my app and then search for any user it starts to show all the users(Even deleted one) and not the one I searched in the box.

also it says E/RecyclerView: No adapter attached; skipping layout and I couldn't find why?

Here is my FindFriends Activity:

This here is my Menu Fragment

I am trying to implement collapsing toolbar behaviour in my app with a tab layout. I want to hide the toolbar when in collapse mode and just show the tab layout in collapse mode and in normal mode until collapsed I want to show the toolbar with the title of the app. Currently, it works as I want in collapsed mode I just want to add a toolbar that hides in collapsed mode.

My code

I have included an icon in the image view which original color is white but after implementing it , the color changes to lite grey

Drawable XML

ic_baseline_settings_24.xml

Note: I have not include path data because otherwise the code will get long

I am trying to create an Android app in Android Studio, using Java that will import data from a CSV file to the SQLite database. The problem is that when I am trying to read from the CSV file using the code:

1st attempt:

I want to implementation Dependecy Injection using Hilt to ViewModel. And that working. but i can't test it. it show error. I was read some other post, but no one is answered.

This error maybe too many test dependency and conflict.

Hilt version = 2.35.1 Android Studio = 4.2.1

simplest code won't run

I'm trying to make a custom dialog box appear when I click on an image in recyclerview. However, though there are no apparent errors in code when compiling, my app keeps crashing when I click onto the menu-item to enter the page. The error in logcat says:

I'm trying to implement a feature on my application, where - if you click on a RecyclerView item - it opens up a dialog box for that item with a picture - kind of like InstaGram.

However, I am trying to make an onClickListener, where I get the position of the adapter. The goal is, that it reads what item I click on, so it can open up a dialog box for that specific item. But no matter what item in the recyclerview I click on, it returns the position as being -1.

Here is my code for it:

UserAdapter.java

Clicking on setupBtn saves the following com.google.android.gms.tasks.zzu@9138f83 instead of image links.

I think the whole problem is in this line Uri download_uri = Uri.parse(task.getResult().getMetadata().getReference().getDownloadUrl().toString());

Tell me what the problem is and how to fix it.

Complete code for Activity