From b05d9d0cf3fdba283e6c4b5d832985afb04633ef Mon Sep 17 00:00:00 2001
From: Thomas Andres Gomez <thomas.andres.gomez@gmail.com>
Date: Fri, 7 May 2021 17:57:08 +0200
Subject: [PATCH] Keyboard management on login screen.

---
 .idea/misc.xml                                |  2 ++
 .../screen/LoginScreenComposable.kt           | 34 ++++++++++++++++---
 2 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6c70665..8d206dc 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -79,6 +79,8 @@
         <entry key="../../../../../layout/compose-model-1620400432847.xml" value="0.28125" />
         <entry key="../../../../../layout/compose-model-1620400507721.xml" value="0.2962962962962963" />
         <entry key="../../../../../layout/compose-model-1620400535629.xml" value="0.16300675675675674" />
+        <entry key="../../../../../layout/compose-model-1620401962136.xml" value="0.28125" />
+        <entry key="../../../../../layout/compose-model-1620402873003.xml" value="0.28125" />
         <entry key="app/src/main/res/drawable-v24/ic_launcher_foreground.xml" value="0.2898148148148148" />
         <entry key="app/src/main/res/drawable/ic_baseline_local_library_24.xml" value="0.25462962962962965" />
         <entry key="app/src/main/res/drawable/ic_google.xml" value="0.2962962962962963" />
diff --git a/app/src/main/java/com/pixelized/biblib/ui/composable/screen/LoginScreenComposable.kt b/app/src/main/java/com/pixelized/biblib/ui/composable/screen/LoginScreenComposable.kt
index c87a365..4f84925 100644
--- a/app/src/main/java/com/pixelized/biblib/ui/composable/screen/LoginScreenComposable.kt
+++ b/app/src/main/java/com/pixelized/biblib/ui/composable/screen/LoginScreenComposable.kt
@@ -4,11 +4,12 @@ import androidx.compose.foundation.Image
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.*
 import androidx.compose.material.ButtonDefaults.outlinedButtonColors
 import androidx.compose.material.TextFieldDefaults.outlinedTextFieldColors
-import androidx.compose.material.TextFieldDefaults.textFieldColors
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.sharp.Visibility
 import androidx.compose.material.icons.sharp.VisibilityOff
@@ -16,8 +17,12 @@ import androidx.compose.runtime.*
 import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.text.input.VisualTransformation
 import androidx.compose.ui.tooling.preview.Preview
@@ -63,17 +68,24 @@ fun LoginScreenComposable(
 
         Spacer(modifier = Modifier.weight(1f))
 
+        val focusRequester = remember { FocusRequester() }
+        val localFocus = LocalFocusManager.current
         LoginField(
             viewModel = authenticationViewModel,
             modifier = Modifier
                 .fillMaxWidth()
-                .padding(bottom = 16.dp)
+                .padding(bottom = 16.dp),
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Next),
+            keyboardActions = KeyboardActions { focusRequester.requestFocus() }
         )
         PasswordField(
             viewModel = authenticationViewModel,
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(bottom = 16.dp)
+                .focusRequester(focusRequester),
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
+            keyboardActions = KeyboardActions { localFocus.clearFocus() }
         )
         CredentialRemember(
             viewModel = authenticationViewModel,
@@ -122,7 +134,12 @@ fun LoginScreenComposable(
 }
 
 @Composable
-private fun LoginField(viewModel: AuthenticationViewModel, modifier: Modifier = Modifier) {
+private fun LoginField(
+    viewModel: AuthenticationViewModel,
+    modifier: Modifier = Modifier,
+    keyboardOptions: KeyboardOptions = KeyboardOptions.Default,
+    keyboardActions: KeyboardActions = KeyboardActions(),
+) {
     val login: State<String?> = viewModel.login.observeAsState()
     TextField(
         modifier = modifier,
@@ -132,11 +149,18 @@ private fun LoginField(viewModel: AuthenticationViewModel, modifier: Modifier =
         colors = outlinedTextFieldColors(),
         maxLines = 1,
         singleLine = true,
+        keyboardOptions = keyboardOptions,
+        keyboardActions = keyboardActions,
     )
 }
 
 @Composable
-private fun PasswordField(viewModel: AuthenticationViewModel, modifier: Modifier = Modifier) {
+private fun PasswordField(
+    viewModel: AuthenticationViewModel,
+    modifier: Modifier = Modifier,
+    keyboardOptions: KeyboardOptions = KeyboardOptions.Default,
+    keyboardActions: KeyboardActions = KeyboardActions(),
+) {
     val password = viewModel.password.observeAsState()
     var passwordVisibility by remember { mutableStateOf(false) }
     TextField(
@@ -156,6 +180,8 @@ private fun PasswordField(viewModel: AuthenticationViewModel, modifier: Modifier
                 )
             }
         },
+        keyboardOptions = keyboardOptions,
+        keyboardActions = keyboardActions,
     )
 }