More code cleanup/review

vector/src/main/java/im/vector/riotx/core/extensions/EditText.kt

@@ -18,25 +18,22 @@ package im.vector.riotx.core.extensions
 
 import android.text.Editable
 import android.text.InputType
-import android.text.TextWatcher
 import android.view.MotionEvent
 import android.view.View
 import android.view.inputmethod.EditorInfo
 import android.widget.EditText
 import androidx.annotation.DrawableRes
 import im.vector.riotx.R
+import im.vector.riotx.core.platform.SimpleTextWatcher
 
 fun EditText.setupAsSearch(@DrawableRes searchIconRes: Int = R.drawable.ic_filter,
                            @DrawableRes clearIconRes: Int = R.drawable.ic_x_green) {
 
-    addTextChangedListener(object : TextWatcher {
-        override fun afterTextChanged(editable: Editable?) {
-            val clearIcon = if (editable?.isNotEmpty() == true) clearIconRes else 0
+    addTextChangedListener(object : SimpleTextWatcher() {
+        override fun afterTextChanged(s: Editable) {
+            val clearIcon = if (s.isNotEmpty()) clearIconRes else 0
             setCompoundDrawablesWithIntrinsicBounds(searchIconRes, 0, clearIcon, 0)
         }
-
-        override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) = Unit
-        override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) = Unit
     })
 
     maxLines = 1

vector/src/main/java/im/vector/riotx/core/platform/ConfigurationViewModel.kt

@@ -19,6 +19,7 @@ package im.vector.riotx.core.platform
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import im.vector.riotx.core.extensions.postLiveEvent
 import im.vector.riotx.core.utils.LiveEvent
 import im.vector.riotx.features.configuration.VectorConfiguration
 import timber.log.Timber
@@ -46,7 +47,7 @@ class ConfigurationViewModel @Inject constructor(
             if (newHash != currentConfigurationValue) {
                 Timber.v("Configuration: recreate the Activity")
                 currentConfigurationValue = newHash
-                _activityRestarter.postValue(LiveEvent(Unit))
+                _activityRestarter.postLiveEvent(Unit)
             }
         }
     }

vector/src/main/java/im/vector/riotx/core/platform/SimpleTextWatcher.kt

@@ -19,6 +19,7 @@ package im.vector.riotx.core.platform
 import android.text.Editable
 import android.text.TextWatcher
 
+
 /**
  * TextWatcher with default no op implementation
  */

vector/src/main/java/im/vector/riotx/features/home/createdirect/CreateDirectRoomActivity.kt

@@ -24,11 +24,7 @@ import android.os.Bundle
 import android.view.View
 import androidx.appcompat.app.AlertDialog
 import androidx.lifecycle.ViewModelProviders
-import com.airbnb.mvrx.Async
-import com.airbnb.mvrx.Fail
-import com.airbnb.mvrx.Loading
-import com.airbnb.mvrx.Success
-import com.airbnb.mvrx.viewModel
+import com.airbnb.mvrx.*
 import im.vector.matrix.android.api.session.room.failure.CreateRoomFailure
 import im.vector.riotx.R
 import im.vector.riotx.core.di.ScreenComponent
@@ -39,7 +35,6 @@ import im.vector.riotx.core.extensions.observeEvent
 import im.vector.riotx.core.platform.SimpleFragmentActivity
 import im.vector.riotx.core.platform.WaitingViewData
 import kotlinx.android.synthetic.main.activity.*
-import timber.log.Timber
 import javax.inject.Inject
 
 class CreateDirectRoomActivity : SimpleFragmentActivity() {
@@ -98,7 +93,7 @@ class CreateDirectRoomActivity : SimpleFragmentActivity() {
         } else
             AlertDialog.Builder(this)
                     .setMessage(errorFormatter.toHumanReadable(error))
-                    .setPositiveButton(R.string.ok) { dialog, id -> dialog.cancel() }
+                    .setPositiveButton(R.string.ok, null)
                     .show()
     }
 

vector/src/main/java/im/vector/riotx/features/home/createdirect/CreateDirectRoomViewModel.kt

@@ -21,7 +21,9 @@ package im.vector.riotx.features.home.createdirect
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import arrow.core.Option
-import com.airbnb.mvrx.*
+import com.airbnb.mvrx.ActivityViewModelContext
+import com.airbnb.mvrx.MvRxViewModelFactory
+import com.airbnb.mvrx.ViewModelContext
 import com.jakewharton.rxrelay2.BehaviorRelay
 import com.squareup.inject.assisted.Assisted
 import com.squareup.inject.assisted.AssistedInject
@@ -33,10 +35,8 @@ import im.vector.matrix.rx.rx
 import im.vector.riotx.core.extensions.postLiveEvent
 import im.vector.riotx.core.platform.VectorViewModel
 import im.vector.riotx.core.utils.LiveEvent
-import io.reactivex.Observable
 import io.reactivex.Single
 import io.reactivex.android.schedulers.AndroidSchedulers
-import io.reactivex.functions.BiFunction
 import java.util.concurrent.TimeUnit
 
 private typealias KnowUsersFilter = String
@@ -103,7 +103,6 @@ class CreateDirectRoomViewModel @AssistedInject constructor(@Assisted
                 .execute {
                     copy(createAndInviteState = it)
                 }
-                .disposeOnClear()
     }
 
     private fun handleRemoveSelectedUser(action: CreateDirectRoomActions.RemoveSelectedUser) = withState { state ->

vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt

@@ -300,8 +300,9 @@ class RoomDetailFragment :
         composerLayout.collapse()
     }
 
-    private fun enterSpecialMode(event: TimelineEvent, @DrawableRes
-    iconRes: Int, useText: Boolean) {
+    private fun enterSpecialMode(event: TimelineEvent,
+                                 @DrawableRes iconRes: Int,
+                                 useText: Boolean) {
         commandAutocompletePolicy.enabled = false
         //switch to expanded bar
         composerLayout.composerRelatedMessageTitle.apply {

vector/src/main/java/im/vector/riotx/features/home/room/list/RoomListViewModel.kt

@@ -84,7 +84,7 @@ class RoomListViewModel @AssistedInject constructor(@Assisted initialState: Room
     // PRIVATE METHODS *****************************************************************************
 
     private fun handleSelectRoom(action: RoomListActions.SelectRoom) {
-        _openRoomLiveData.postValue(LiveEvent(action.roomSummary.roomId))
+        _openRoomLiveData.postLiveEvent(action.roomSummary.roomId)
     }
 
     private fun handleToggleCategory(action: RoomListActions.ToggleCategory) = setState {