The Android docs give the following snippet for how to encrypt a message in AES: val plaintext: ByteArray = ... val keygen = KeyGenerator.getInstance("AES") keygen.init(256) val key: SecretKey = keygen.generateKey() val cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING") cipher.init(Cipher.ENCRYPT_MODE, key) val ciphertext: ByteArray =…
I have two activity, cartActivity and paymentActivity.When I click back in payment activity it has to go back to the cartActivity but instead the app is closing completely. I don't get any error also. override fun onBackPressed() { this.finish() }…
I have a music list obtained from: MusicDatabase.kt override fun getContentProviderValue(): MutableList<Songs> { val songList = mutableListOf<Songs>() val collection = sdk29AndUp { MediaStore.Audio.Media.getContentUri(MediaStore.VOLUME_EXTERNAL) } ?: MediaStore.Audio.Media.EXTERNAL_CONTENT_URI //Get songs from provider context.contentResolver.query( collection, projection, selection, null, PreferenceHelper.storeAllSongsSortOrder //Sort order. ).use {…
I have I time picker in my code and when I press the edit text it shows up and everything looks good but I want to set a default time for my time picker so when the user opens the…
I have a cartActivity and when I click the proceed button it goes to PaymentActivity. Now, If I click baack button from the paymentActivity I want to go back to the CartActivity. CartActivity class CartActivity : AppCompatActivity() { lateinit var…
I want to make a custom dialog that I can re-use to configure some parameters. I added a default hint that I want to modify each time the user opens the Dialog. <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" android:layout_width="match_parent"…
I can't launch widgets on android 11. This code works on my android 9 phone, but android 11 Google Pixel 3a emulator not working. what should I do for this. Ok, so what I want to do is create a…
So I am brand new to coding and I'm making an app in Android Studio in Kotlin and on the homepage of my app I have a button that is supposed to take me to another activity and every time…
When I try to override the onCreateDialog method of androidx.fragment.app.DialogFragment I get the following error: 'onCreateDialog overrides nothing'. According to developer.android.com I should be able to override it as it's defined as open. I am using the following code import…
I have a search bar, after searching in the search bar, if I click back button the app closes. What I want is if I click back button after searching in search bar the default list must be shown. activity?.onBackPressedDispatcher?.addCallback(this,…