Implemented closing Autocomplete popup on back button press

ui/BankingAndroidApp/src/main/java/net/dankito/banking/fints4java/android/ui/dialogs/AddAccountDialog.kt

@@ -20,6 +20,7 @@ import kotlinx.android.synthetic.main.dialog_add_account.view.*
 import net.dankito.banking.fints4java.android.R
 import net.dankito.banking.fints4java.android.di.BankingComponent
 import net.dankito.banking.fints4java.android.ui.adapter.presenter.BankInfoPresenter
+import net.dankito.banking.fints4java.android.ui.extensions.closePopupOnBackButtonPress
 import net.dankito.banking.fints4java.android.util.StandardAutocompleteCallback
 import net.dankito.banking.ui.model.responses.AddAccountResponse
 import net.dankito.banking.ui.presenter.BankingPresenter
@@ -87,6 +88,7 @@ open class AddAccountDialog : DialogFragment() {
             .with(autocompleteCallback)
             .with(BankInfoPresenter(presenter, rootView.context))
             .build()
+            .closePopupOnBackButtonPress(dialog)
     }
 
     protected open fun addAccount() {

ui/BankingAndroidApp/src/main/java/net/dankito/banking/fints4java/android/ui/dialogs/TransferMoneyDialog.kt

@@ -20,6 +20,7 @@ import net.dankito.banking.fints4java.android.di.BankingComponent
 import net.dankito.banking.fints4java.android.ui.adapter.BankAccountsAdapter
 import net.dankito.banking.fints4java.android.ui.adapter.presenter.RemitteePresenter
 import net.dankito.banking.fints4java.android.ui.extensions.addEnterPressedListener
+import net.dankito.banking.fints4java.android.ui.extensions.closePopupOnBackButtonPress
 import net.dankito.banking.fints4java.android.ui.listener.ListItemSelectedListener
 import net.dankito.banking.fints4java.android.util.StandardAutocompleteCallback
 import net.dankito.banking.fints4java.android.util.StandardTextWatcher
@@ -182,6 +183,7 @@ open class TransferMoneyDialog : DialogFragment() {
             .with(autocompleteCallback)
             .with(RemitteePresenter(remitteeSearcher, edtxtRemitteeName.context))
             .build()
+            .closePopupOnBackButtonPress(dialog)
     }
 
 

ui/BankingAndroidApp/src/main/java/net/dankito/banking/fints4java/android/ui/extensions/AutocompleteExtensions.kt

@@ -0,0 +1,28 @@
+package net.dankito.banking.fints4java.android.ui.extensions
+
+import android.app.Dialog
+import android.view.KeyEvent
+import com.otaliastudios.autocomplete.Autocomplete
+
+
+/**
+ * This will not work if Dialog is null!
+ *
+ * Making the Dialog parameter nullable is just for convienience to be able to call
+ * Autocomplete
+ *  .on<>(view)
+ *  .build()
+ *  .closePopupOnBackButtonPress(dialog)
+ */
+fun Autocomplete<*>.closePopupOnBackButtonPress(dialog: Dialog?) {
+    dialog?.setOnKeyListener { _, keyCode, _ ->
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            if (this.isPopupShowing) { // close autocomplete popup on back button press
+                this.dismissPopup()
+                return@setOnKeyListener true
+            }
+        }
+
+        false
+    }
+}