CropImageView | Super easy component for Android to crop an image | Computer Vision library

So I have added some security rules to my firebase storage when I use the simulation it works as expected but when I actually perform from my app it shows me this error

I am trying to crop a selected portion of NSImage which is fitted as per ProportionallyUpOrDown(AspectFill) Mode. I am drawing a frame using mouse dragged event like this:

I try the tutorial from Youtube to make Text Recognition from Camera, but somehow the app force close

I'm trying to use a native android library called "ImageCropper" available here: https://github.com/ArthurHub/Android-Image-Cropper

I created android bindings, but when I try to consume it from XF custom rendered, it throws an error saying: "java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/appcompat/app/AppCompatActivity"

I'm compiling my XF app with target version set to API 29. Not sure what I'm missing or how would I proceed to fix this issue. Any suggestions are heartly appreciated. Thanks.

PS: XF custom renderer: https://pastebin.com/85Mdsy8c

I have been trying to make a chatting app in android studio with java. I have successfully written the code to upload a image and transfer it from Firebase storage to Firebase Database. When I try to retrieve the image in a method with picasso, the image view in which I am trying to do so gets invisible.

What I want to accomplish is to select a sperate image whenever I click on a separate Imageview. For example, If a click on ImageView_1 I can select one image from the gallery and if I click on Imagview_2 I can select a separate image from the gallery. I have seen there are already many answers to this question but they are all different from what is I want to do. In the previous answers, they get all the images as a list in OnActivity Results and all the images are selected at once from the gallery.

My code

Dependency Used

implementation 'com.theartofdev.edmodo:android-image-cropper:2.8.+'

I have been struggling to get download url for an image uploaded to firebase storage from my app. I want to send this url to firestore databse (not realtime database). I am setting itemImageUri to uri.toString() but in onCreate() method itemImageUrl is null and shows null in firestore. I cannot use CollectionRefernece addItemRef in onSuccess method as it gives error for all string variables: Variable is accessed from within inner class needs to be declared final.

I do not know why I can't add boolean insertData = dbHelper.addData(emailString, nameString,ageString, preferencesString,passwordString) where the addData keep showing error in the lines of code provided below. I wanted to add the if-else statement there is because I wanted it to make sure during the insert data process, a user has to fill in all the details in order to create an account, but not leaving blanks on any of the fields given for them to fill in. or I need to do it in another way? I'm still a newbie for android studio. Please help me.

Having a slight problem with some logic that I am trying to implement to test whether a String variable has been modified or not. So in EditProfileActivity the user has the option of changing their name,username, and bio. Only thing is that when they enter the EditProfileActivity, if the username was Not changed, then when the user clicks on the checkmark to save changes it checks to see if the username already exists in the database. If so, a Toast message comes up indicating that that username already exist, and for you to pick another one.

The problem is that if the user doesn't change anything, and clicks the checkmark the Toast message pops up anyways, because that username that the user didn't change exists in the database obviously.

How can I change the code or implement logic so that even if the user clicks in the checkmark, and if the username wasn't changed the Toast message doesn't pop up and just the Activity finish();?

I tried implementing another condition in the updateProfile(); method to the if statement to check whether the original username was the same as the final username, but didn't work... I'm pretty sure that's where the I have to add another condition to check whether or not it's the same username. This is the logic that I added, but didn't work:

&& !mUsername.getText().toString().toLowerCase().equals(mUsername1.toLowerCase()).

EditProfileActivity