Fikky Note's

To Fix that, very simple: Just include this code in theme.xml, inside of base style.

It's very simple just change appBarConfiguration like this. binding.bottomNavigationView.setupWithNavController(navController) appBarConfiguration = AppBarConfiguration(binding.bottomNavigationView.menu) setupActionBarWithNavController(navController, appBarConfiguration)

 in build.gradle -> android -> defaultConfig write this code: Properties properties = new Properties() properties.load(project.rootProject.file("local.properties").newDataInputStream()) buildConfigField "String", "API_KEY", "\"${properties.getProperty("API_KEY")}\"" in local.properties , write your api key API_KEY=your_api_key and then sync and rebuild project to use, just called BuildConfig.API_KEY

  - setup build.gradle plugins {     id 'kotlin-kapt'     id 'kotlin-parcelize' } buildFeatures {     viewBinding true } dependencies {     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0'     implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.4.0'     implementation 'androidx.room:room-runtime:2.3.0'     kapt 'androidx.room:room-compiler:2.3.0' } - create entity @Entity @Parcelize data class Note(     @PrimaryKey(autoGenerate = true)     @ColumnInfo(name = "id")     var id: Int = 0,       @ColumnInfo(name = "title")     var title: String? = null,       @ColumnInfo(name = "description")     var description: String? = null,       @ColumnInfo(name = "date")     var date: String? = null ) : Parcelable - create dao @Dao interface NoteDao {     @Insert(onConflict = OnConflictStra...

 - apply dependencies implementation "androidx.datastore:datastore-preferences:$latestversion" - create instance prefrences data store val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "settings") - define preferences datastore key word val EXAMPLE_COUNTER = intPreferencesKey("example_counter") - get value from preferences datastore val exampleCounterFlow: Flow<Int> = context.dataStore.data   .map { preferences ->     // No type safety.     preferences[EXAMPLE_COUNTER] ?: 0 } - saving value suspend fun incrementCounter() {   context.dataStore.edit { settings ->     // get value      val currentCounterValue = settings[EXAMPLE_COUNTER] ?: 0       // edit value      settings[EXAMPLE_COUNTER] = currentCounterValue + 1   } }

To Convert HTML Tag to String XML it was simple, Just use Html.fromHtml() Keep simple!

  To change action bar title in fragment with kotlin it was simple. just use supportActionBar.title

 First adding dependencies in build.gradle Make Data Class, based on response api Make Api Service, based on URL API, for example:  https://reqres.in/ api/users ?page=1 Base URL : https://reqres.in/  Endpoint : api/users  Parameter : ?page=1  Create Api Config Last, getting data response using enqueue method.

@Headers : adding additional information in header request like Authorization, data type, etc. @Query : add paraneters in @Get method. @Path : adding dynamic variable as endpoint, like {id}. @FormUrlEncoded : mark function on @Post method as form-url-encoded. @Field : pass parameters to the @Post method. @Multipart : marks a function that it is multi-part. @Part : sending files in a multi-part way. @PartMap : sending other data than files on a multi-part.