fix(android): fixed issues on android 15+ white space above keyboard (#2388)

Author: OS-kepatotorica

keyboard/android/src/main/java/com/capacitorjs/plugins/keyboard/Keyboard.java

@@ -2,7 +2,9 @@
 
 import android.content.Context;
 import android.graphics.Rect;
+import android.os.Build;
 import android.util.DisplayMetrics;
+import android.util.TypedValue;
 import android.view.View;
 import android.view.Window;
 import android.view.inputmethod.InputMethodManager;
@@ -13,6 +15,7 @@
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsAnimationCompat;
 import androidx.core.view.WindowInsetsCompat;
+import com.getcapacitor.Bridge;
 import java.util.List;
 
 public class Keyboard {
@@ -21,6 +24,7 @@ interface KeyboardEventListener {
         void onKeyboardEvent(String event, int size);
     }
 
+    private Bridge bridge;
     private AppCompatActivity activity;
     private View rootView;
     private int usableHeightPrevious;
@@ -39,6 +43,13 @@ public void setKeyboardEventListener(@Nullable KeyboardEventListener keyboardEve
     static final String EVENT_KB_WILL_HIDE = "keyboardWillHide";
     static final String EVENT_KB_DID_HIDE = "keyboardDidHide";
 
+    // From android 15 on, we need access to the bridge to get the config to resize the keyboard properly.
+    public Keyboard(Bridge bridge, boolean resizeOnFullScreen) {
+        this(bridge.getActivity(), resizeOnFullScreen);
+        this.bridge = bridge;
+    }
+
+    // We may want to deprecate this constructor in the future, but we are keeping it now to keep backward compatibility with cap 7
     public Keyboard(AppCompatActivity activity, boolean resizeOnFullScreen) {
         this.activity = activity;
 
@@ -131,9 +142,38 @@ private void possiblyResizeChildOfContent(boolean keyboardShown) {
     private int computeUsableHeight() {
         Rect r = new Rect();
         mChildOfContent.getWindowVisibleDisplayFrame(r);
+        if (shouldApplyEdgeToEdgeAdjustments()) {
+            WindowInsetsCompat insets = ViewCompat.getRootWindowInsets(rootView);
+            if (insets != null) {
+                int systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()).bottom;
+                if (systemBars > 0) {
+                    return r.bottom + systemBars;
+                }
+            }
+        }
+
         return isOverlays() ? r.bottom : r.height();
     }
 
+    private boolean shouldApplyEdgeToEdgeAdjustments() {
+        var adjustMarginsForEdgeToEdge = this.bridge == null ? "auto" : this.bridge.getConfig().adjustMarginsForEdgeToEdge();
+        if (adjustMarginsForEdgeToEdge.equals("force")) { // Force edge-to-edge adjustments regardless of app settings
+            return true;
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM && adjustMarginsForEdgeToEdge.equals("auto")) { // Auto means that we need to check the app's edge-to-edge preference
+            TypedValue value = new TypedValue();
+            boolean optOutAttributeExists = activity
+                .getTheme()
+                .resolveAttribute(android.R.attr.windowOptOutEdgeToEdgeEnforcement, value, true);
+
+            if (!optOutAttributeExists) { // Default is to apply edge to edge
+                return true;
+            } else {
+                return value.data == 0;
+            }
+        }
+        return false;
+    }
+
     @SuppressWarnings("deprecation")
     private boolean isOverlays() {
         final Window window = activity.getWindow();

keyboard/android/src/main/java/com/capacitorjs/plugins/keyboard/KeyboardPlugin.java

@@ -18,7 +18,7 @@ public void load() {
         execute(
             () -> {
                 boolean resizeOnFullScreen = getConfig().getBoolean("resizeOnFullScreen", false);
-                implementation = new Keyboard(getActivity(), resizeOnFullScreen);
+                implementation = new Keyboard(getBridge(), resizeOnFullScreen);
 
                 implementation.setKeyboardEventListener(this::onKeyboardEvent);
             }