I am going to enrol on a course to learning Android Development. There it says it "write apps for Android 8 Oreo with Kotlin" But Android 11 is already out there. So is the course worth it in 2021. Or…
I have a code where I called sharedPref.edit() and sharedPref.apply() multiple times. How to make convert it to call only once. if (success) { val data = response.getJSONObject("data") sharedPreferences.edit().putBoolean("isLoggedIn", true).apply() sharedPreferences.edit() .putString("user_id", data.getString("user_id")).apply() sharedPreferences.edit().putString("name", data.getString("name")) .apply() sharedPreferences.edit().putString("email", data.getString("email")) .apply() sharedPreferences.edit()…
I get error when I press button inside recycler view. My application is not crashing. I am trying to set a button in the recycler view and callingsetOnClickListener inside onBindViewHolder. Inside the holder.Button.setOnClickListener{}I change the button text to notified. But…
The build.gradle script (module) structure is: plugin { ... id 'org.jetbrains.kotlin.kapt' } android { ... buildTypes { ... } dataBinding { enabled = true } } If I try to sync my project I get: Could not set unknown property…
package com.example.tipcalculator import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Button import android.widget.EditText import android.widget.TextView import kotlin.text.toFloat as kotlinTextToFloat class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) supportActionBar?.hide() val tenPerTip: Button = findViewById(R.id.tenPerTipButton) val fifteenPerTip: Button = findViewById(R.id.fifteenPerTipButton) val…
I am building a small dictioanry app, screenshot below: Screenshot When I click on a letter from mRecyclerView1, I want to scroll mRecyclerView2 to the the first word which starts with this particular letter. Inside the mRecyclerView1 adapter I've made…
Is there any minimum recommended or required Gradle or Gradle Plugin versions if we intend to target Android 30?
I'm trying to update my application to Android SDK 31 but I'm having an issue with MediaSessionCompat. I have a MediaService that extends the MediaBrowserServiceCompat() and in method onCreate of that service I initialise the MediaSessionCompat. override fun onCreate() {…
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() }…