add view group alert

FCL/src/main/java/com/tungsten/fcl/control/GameMenu.java

@@ -9,6 +9,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.RelativeLayout;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -573,13 +574,21 @@ public class GameMenu implements MenuCallback, View.OnClickListener {
             dialog.show();
         }
         if (v == addButton) {
+            if (getViewGroup() == null) {
+                Toast.makeText(getActivity(), getActivity().getString(R.string.edit_view_no_group), Toast.LENGTH_SHORT).show();
+            } else {
                 EditViewDialog dialog = new EditViewDialog(getActivity(), new ControlButtonData(UUID.randomUUID().toString()), this, view -> viewManager.addView(view));
                 dialog.show();
             }
+        }
         if (v == addDirection) {
+            if (getViewGroup() == null) {
+                Toast.makeText(getActivity(), getActivity().getString(R.string.edit_view_no_group), Toast.LENGTH_SHORT).show();
+            } else {
                 EditViewDialog dialog = new EditViewDialog(getActivity(), new ControlDirectionData(UUID.randomUUID().toString()), this, view -> viewManager.addView(view));
                 dialog.show();
             }
+        }
         if (v == manageButtonStyle) {
             ButtonStyleDialog dialog = new ButtonStyleDialog(getActivity(), false, null, null);
             dialog.show();

FCL/src/main/java/com/tungsten/fcl/control/view/ViewManager.java

@@ -1,7 +1,9 @@
 package com.tungsten.fcl.control.view;
 
 import android.view.View;
+import android.widget.Toast;
 
+import com.tungsten.fcl.R;
 import com.tungsten.fcl.control.GameMenu;
 import com.tungsten.fcl.control.data.ControlButtonData;
 import com.tungsten.fcl.control.data.ControlDirectionData;
@@ -35,7 +37,8 @@ public class ViewManager {
     }
 
     public void addView(CustomControl control) {
-        if (gameMenu.getViewGroup() != null && gameMenu.isEditMode()) {
+        if (gameMenu.isEditMode()) {
+            if (gameMenu.getViewGroup() != null) {
                 if (control instanceof ControlButtonData) {
                     gameMenu.getViewGroup().getViewData().addButton((ControlButtonData) control);
                 } else {
@@ -43,6 +46,9 @@ public class ViewManager {
                 }
                 saveController();
                 loadView(control, true);
+            } else {
+                Toast.makeText(gameMenu.getActivity(), gameMenu.getActivity().getString(R.string.edit_view_no_group), Toast.LENGTH_SHORT).show();
+            }
         }
     }
 

FCL/src/main/res/values-zh/strings.xml

@@ -109,6 +109,7 @@
 
     <string name="edit_view_event">控件事件</string>
     <string name="edit_view_info">控件基本信息</string>
+    <string name="edit_view_no_group">请先添加或选择一个控件组！</string>
     <string name="edit_view_style">控件样式</string>
 
     <string name="edit_button_title">编辑按键</string>

FCL/src/main/res/values/strings.xml

@@ -120,6 +120,7 @@
 
     <string name="edit_view_event">View Event</string>
     <string name="edit_view_info">Base View Info</string>
+    <string name="edit_view_no_group">Please add or select a view group first!</string>
     <string name="edit_view_style">View Style</string>
 
     <string name="edit_button_title">Edit Button</string>