From 62943ba4d33f65ce0019f28f9ad2be7e811c272a Mon Sep 17 00:00:00 2001
From: vladgba <vlad.gba@gmail.com>
Date: Wed, 24 May 2023 20:23:28 +0300
Subject: [PATCH] Fix gravity of keyboard in full screen (#363)

Set keyboard bottom gravity and adjust inputArea height so it doesn't appear on top in fullscreen.
---
 srcs/juloo.keyboard2/Keyboard2.java | 63 ++++++++++++++++++++++++++---
 1 file changed, 58 insertions(+), 5 deletions(-)

diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index 6348a1b..c41a22f 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -9,11 +9,7 @@ import android.os.IBinder;
 import android.text.InputType;
 import android.util.Log;
 import android.util.LogPrinter;
-import android.view.ContextThemeWrapper;
-import android.view.KeyEvent;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.ViewParent;
+import android.view.*;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.view.inputmethod.InputMethodInfo;
@@ -23,6 +19,8 @@ import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
 
 public class Keyboard2 extends InputMethodService
   implements SharedPreferences.OnSharedPreferenceChangeListener
@@ -288,6 +286,61 @@ public class Keyboard2 extends InputMethodService
     if (parent != null && parent instanceof ViewGroup)
       ((ViewGroup)parent).removeView(v);
     super.setInputView(v);
+    updateSoftInputWindowLayoutParams();
+  }
+
+
+  @Override
+  public void updateFullscreenMode() {
+    super.updateFullscreenMode();
+    updateSoftInputWindowLayoutParams();
+  }
+
+  private void updateSoftInputWindowLayoutParams() {
+    final Window window = getWindow().getWindow();
+    updateLayoutHeightOf(window, ViewGroup.LayoutParams.MATCH_PARENT);
+    final View inputArea = window.findViewById(android.R.id.inputArea);
+
+    updateLayoutHeightOf(
+            (View) inputArea.getParent(),
+            isFullscreenMode()
+                    ? ViewGroup.LayoutParams.MATCH_PARENT
+                    : ViewGroup.LayoutParams.WRAP_CONTENT);
+    updateLayoutGravityOf((View) inputArea.getParent(), Gravity.BOTTOM);
+
+  }
+
+  private static void updateLayoutHeightOf(final Window window, final int layoutHeight) {
+    final WindowManager.LayoutParams params = window.getAttributes();
+    if (params != null && params.height != layoutHeight) {
+      params.height = layoutHeight;
+      window.setAttributes(params);
+    }
+  }
+
+  private static void updateLayoutHeightOf(final View view, final int layoutHeight) {
+    final ViewGroup.LayoutParams params = view.getLayoutParams();
+    if (params != null && params.height != layoutHeight) {
+      params.height = layoutHeight;
+      view.setLayoutParams(params);
+    }
+  }
+
+  private static void updateLayoutGravityOf(final View view, final int layoutGravity) {
+    final ViewGroup.LayoutParams lp = view.getLayoutParams();
+    if (lp instanceof LinearLayout.LayoutParams) {
+      final LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) lp;
+      if (params.gravity != layoutGravity) {
+        params.gravity = layoutGravity;
+        view.setLayoutParams(params);
+      }
+    } else if (lp instanceof FrameLayout.LayoutParams) {
+      final FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) lp;
+      if (params.gravity != layoutGravity) {
+        params.gravity = layoutGravity;
+        view.setLayoutParams(params);
+      }
+    }
   }
 
   @Override