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class BootReceiver : BroadcastReceiver() { private val TAG = BootReceiver::class.java.simpleName override fun onReceive(context: Context?, intent: Intent?) { Log.d(TAG, "onReceive") val randomUuid = UUID.randomUUID() val cFormat = SimpleDateFormat("hh:mm:ss") val currentDate = cFormat.format(Date()) val file:String = currentDate val data:String = intent?.action.toString() val fileOutputStream: F..

class MyForegroundService : Service() { private val TAG = MyForegroundService::class.java.simpleName private val NOTIFICATION_ID = 10 override fun onCreate() { super.onCreate() Log.d(TAG, "onCreate") } override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int { Log.d(TAG, "onConStartCommandreate") Log.d(TAG, intent?.action.toString()) val channelId = "com.codechacha.sample1" va..

@Database(entities = [TextEntity::class], version = 1) abstract class TextDatabase : RoomDatabase() { abstract fun textDao() : TextDao companion object { @Volatile private var INSTANCE : TextDatabase? = null fun getDatabase( context : Context ) : TextDatabase { return INSTANCE ?:synchronized(this){ val instance = Room.databaseBuilder( context.applicationContext, TextDatabase::class.java, "text_d..

class AlarmReceiver : BroadcastReceiver() { companion object { const val TAG = "AlarmReceiver" const val NOTIFICATION_ID = 0 const val PRIMARY_CHANNEL_ID = "primary_notification_channel" } lateinit var notificationManager: NotificationManager override fun onReceive(context: Context, intent: Intent) { Log.d(TAG, "Received intent : $intent") notificationManager = context.getSystemService( Context...

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val bottomNavigationView = findViewById(R.id.bottomNavigationView) val navController = findNavController(R.id.fragmentContainerView) // val appBarConfiguration = AppBarConfiguration(setOf(R.id.a1, R.id.a2, R.id.a3)) // setupActi..

freeCompilerArgs += [ "-Xjvm-default=all", ] gradle 에 넣어주면 끝.

// dataStore implementation "androidx.datastore:datastore-preferences:1.0.0" // ViewModelScope implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1" class MainActivity : AppCompatActivity() { private val TAG = MainActivity::class.java.simpleName lateinit var viewModel : MainViewModel lateinit var viewModelFactory: MainViewModelFactory private val customAdapter : CustomAdapter by lazy..

build.gradle에 아래와 같이 buildscript를 만들어주면 됩니다.

안드로이드 DataStore에 대해서 알아보겠습니다. implementation("androidx.datastore:datastore-preferences:1.0.0") implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.5.1" class TestActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_test) val userManager = UserManager(applicationContext) lifecycleScope.laun..

class MainActivity : AppCompatActivity() { private lateinit var viewModel: MainViewModel private lateinit var binding : ActivityMainBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = DataBindingUtil.setContentView(this, R.layout.activity_main) viewModel = ViewModelProvider(this).get(MainViewModel::class.java) binding.vm = viewModel binding.l..