Merge branch 'fix-hide-keyboard' into 'develop'

Fix Keyboard not hidden before login

See merge request !33

app/src/main/java/fr/chenry/android/freshrss/activities/LoginActivity.kt

@@ -5,6 +5,7 @@ import android.animation.AnimatorListenerAdapter
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.os.ResultReceiver
 import android.view.View
 import android.view.inputmethod.EditorInfo
 import android.view.inputmethod.InputMethodManager
@@ -19,7 +20,11 @@ import fr.chenry.android.freshrss.store.Store
 import fr.chenry.android.freshrss.utils.InstanceUrl
 import fr.chenry.android.freshrss.utils.Try
 import fr.chenry.android.freshrss.utils.e
+import fr.chenry.android.freshrss.utils.whenNotNull
+import fr.chenry.android.freshrss.utils.whenNull
 import kotlinx.android.synthetic.main.activity_login.*
+import nl.komponents.kovenant.deferred
+import nl.komponents.kovenant.resolve
 import nl.komponents.kovenant.ui.failUi
 import nl.komponents.kovenant.ui.successUi
 import java.util.Properties
@@ -134,11 +139,15 @@ class LoginActivity : AppCompatActivity() {
     }
 
     private fun hideKeyboard() {
+        val deferred = deferred<Unit, Exception>()
         val view = this.currentFocus
-        view?.let {
+        view.whenNotNull {
             val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
-            imm.hideSoftInputFromWindow(it.windowToken, 0)
-        }
+            imm.hideSoftInputFromWindow(it.windowToken, 0, object : ResultReceiver(null) {
+                override fun onReceiveResult(resultCode: Int, resultData: Bundle?) = deferred.resolve()
+            })
+        }.whenNull { deferred.resolve() }
+        deferred.promise.get()
     }
 
     private fun showProgress(show: Boolean) {