Add Apply Window Insets Listener to Floating Action Button on Collaborators and Edit Tags Screens (#1739)

Author: mzorz

Simplenote/src/main/java/com/automattic/simplenote/CollaboratorsActivity.kt

@@ -13,8 +13,8 @@ import androidx.appcompat.widget.Toolbar
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.automattic.simplenote.databinding.ActivityCollaboratorsBinding
 import com.automattic.simplenote.utils.CollaboratorsAdapter
-import com.automattic.simplenote.utils.CollaboratorsAdapter.*
 import com.automattic.simplenote.utils.CollaboratorsAdapter.CollaboratorDataItem.*
+import com.automattic.simplenote.utils.DisplayUtils
 import com.automattic.simplenote.utils.IntentUtils
 import com.automattic.simplenote.utils.SystemBarUtils
 import com.automattic.simplenote.utils.toast
@@ -48,7 +48,7 @@ class CollaboratorsActivity : ThemedAppCompatActivity() {
             setObservers()
 
             viewModel.loadCollaborators(noteId)
-            
+
             // Setup edge-to-edge display with proper WindowInsets handling
             // Use auto-theming to properly handle status bar appearance based on theme
             val toolbar = findViewById<Toolbar>(R.id.toolbar)
@@ -90,6 +90,9 @@ class CollaboratorsActivity : ThemedAppCompatActivity() {
         collaboratorsList.setEmptyView(empty.root)
 
         buttonAddCollaborator.setOnClickListener { viewModel.clickAddCollaborator() }
+        buttonAddCollaborator.setOnApplyWindowInsetsListener { view, insets ->
+            DisplayUtils.applyWindowInsetsForFloatingActionButton(insets, resources, view)
+        }
 
         empty.image.setImageResource(R.drawable.ic_collaborate_24dp)
         empty.title.text = getString(R.string.no_collaborators)

Simplenote/src/main/java/com/automattic/simplenote/TagsActivity.kt

@@ -37,7 +37,7 @@ class TagsActivity : ThemedAppCompatActivity() {
         binding.setObservers()
 
         viewModel.start()
-        
+
         // Setup edge-to-edge display with proper WindowInsets handling
         // Use auto-theming to properly handle status bar appearance based on theme
         val toolbar = findViewById<Toolbar>(R.id.toolbar)
@@ -73,6 +73,9 @@ class TagsActivity : ThemedAppCompatActivity() {
             viewModel.longClickAddTag()
             true
         }
+        buttonAdd.setOnApplyWindowInsetsListener { view, insets ->
+            DisplayUtils.applyWindowInsetsForFloatingActionButton(insets, resources, view)
+        }
     }
 
     private fun ActivityTagsBinding.setObservers() {

Simplenote/src/main/java/com/automattic/simplenote/utils/DisplayUtils.java

@@ -3,12 +3,17 @@
 import android.app.Activity;
 import android.content.Context;
 import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.graphics.Point;
+import android.os.Build;
 import android.util.TypedValue;
 import android.view.Display;
 import android.view.View;
+import android.view.WindowInsets;
 import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
+import android.widget.RelativeLayout;
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -149,4 +154,39 @@ public static void showKeyboard(@Nullable final View view) {
             inputMethodManager.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
         }
     }
+
+    /**
+     * Apply window insets for a {@link FloatingActionButton} in a {@link RelativeLayout} to the given {@link View}.
+     *
+     * @param insets     {@link WindowInsets} to apply to {@link View}.
+     * @param resources  {@link Resources} to get dimension value from.
+     * @param view       {@link View} to apply {@link WindowInsets} to.
+     *
+     * @return           {@link WindowInsets} supplied from a listener.
+     */
+    public static WindowInsets applyWindowInsetsForFloatingActionButton(WindowInsets insets, Resources resources, View view) {
+        int bottom;
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            bottom = insets.getInsets(WindowInsets.Type.systemBars()).bottom;
+        } else {
+            bottom = insets.getSystemWindowInsetBottom();
+        }
+
+        int button = (int) resources.getDimension(R.dimen.button_floating);
+        int margin = (int) resources.getDimension(R.dimen.margin_default);
+
+        RelativeLayout.LayoutParams buttonLayoutParams = new RelativeLayout.LayoutParams(
+            RelativeLayout.LayoutParams.WRAP_CONTENT,
+            RelativeLayout.LayoutParams.WRAP_CONTENT
+        );
+        buttonLayoutParams.setMargins(margin, 0, margin, bottom + margin);
+        buttonLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
+        buttonLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_END);
+        buttonLayoutParams.height = button;
+        buttonLayoutParams.width = button;
+        view.setLayoutParams(buttonLayoutParams);
+
+        return insets;
+    }
 }