From 08d3438dde59333327eb0d6c1ceccda4c41b9399 Mon Sep 17 00:00:00 2001
From: Konrad Pozniak <k.pozniak@gmx.at>
Date: Fri, 2 Oct 2020 21:12:12 +0200
Subject: [PATCH] improve layout of LoginActivity when keyboard is extended and
 animate changes

---
 app/src/main/AndroidManifest.xml              |  3 +-
 .../components/login/LoginActivity.kt         | 31 +++++++++++++++++--
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index a1911b7..c44f130 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -35,7 +35,8 @@
         </activity>
         <activity
                 android:name=".components.login.LoginActivity"
-                android:theme="@style/AppTheme.Fullscreen">
+                android:theme="@style/AppTheme.Fullscreen"
+                android:windowSoftInputMode="adjustResize">
 
         </activity>
         <activity
diff --git a/app/src/main/kotlin/at/connyduck/pixelcat/components/login/LoginActivity.kt b/app/src/main/kotlin/at/connyduck/pixelcat/components/login/LoginActivity.kt
index 9bf273a..adb626b 100644
--- a/app/src/main/kotlin/at/connyduck/pixelcat/components/login/LoginActivity.kt
+++ b/app/src/main/kotlin/at/connyduck/pixelcat/components/login/LoginActivity.kt
@@ -19,6 +19,7 @@
 
 package at.connyduck.pixelcat.components.login
 
+import android.animation.ValueAnimator
 import android.app.Activity
 import android.content.Context
 import android.content.Intent
@@ -29,7 +30,9 @@ import android.view.ViewGroup
 import androidx.activity.viewModels
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.WindowInsetsCompat.Type.ime
 import androidx.core.view.WindowInsetsCompat.Type.systemBars
+import androidx.core.view.updatePadding
 import androidx.lifecycle.lifecycleScope
 import at.connyduck.pixelcat.R
 import at.connyduck.pixelcat.components.about.AboutActivity
@@ -63,9 +66,23 @@ class LoginActivity : BaseActivity() {
         setContentView(binding.root)
 
         ViewCompat.setOnApplyWindowInsetsListener(binding.root) { _, insets ->
-            val top = insets.getInsets(systemBars()).top
+            val insetTop = insets.getInsets(systemBars()).top
             val toolbarParams = binding.loginToolbar.layoutParams as ViewGroup.MarginLayoutParams
-            toolbarParams.topMargin = top
+            toolbarParams.topMargin = insetTop
+
+            val insetBottom = insets.getInsets(ime()).bottom
+            val paddingBottom = binding.root.paddingBottom
+
+            if (paddingBottom != insetBottom) {
+                // animate the bottom padding when the soft keyboard visibility changed
+                val animator = ValueAnimator.ofInt(paddingBottom, insetBottom)
+                animator.addUpdateListener { valueAnimator ->
+                    binding.root.updatePadding(bottom = valueAnimator.animatedValue as Int)
+                }
+                animator.duration = 200
+                animator.start()
+            }
+
             WindowInsetsCompat.CONSUMED
         }
 
@@ -155,7 +172,15 @@ class LoginActivity : BaseActivity() {
             }
             LoginState.SUCCESS -> {
                 setLoading(true)
-                startActivityForResult(LoginWebViewActivity.newIntent(loginModel.domain!!, loginModel.clientId!!, loginModel.clientSecret!!, this), REQUEST_CODE)
+                startActivityForResult(
+                    LoginWebViewActivity.newIntent(
+                        loginModel.domain!!,
+                        loginModel.clientId!!,
+                        loginModel.clientSecret!!,
+                        this
+                    ),
+                    REQUEST_CODE
+                )
             }
             LoginState.SUCCESS_FINAL -> {
                 setLoading(true)