Created base files for UI Designer

.idea/jarRepositories.xml

@@ -31,5 +31,10 @@
       <option name="name" value="Google" />
       <option name="url" value="https://dl.google.com/dl/android/maven2/" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenLocal" />
+      <option name="name" value="MavenLocal" />
+      <option name="url" value="file:/C:/Users/Akash%20Yadav/.m2/repository/" />
+    </remote-repository>
   </component>
 </project>

.idea/misc.xml

@@ -3,9 +3,26 @@
   <component name="DesignSurface">
     <option name="filePathToZoomLevelMap">
       <map>
-        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_main.xml" value="0.264" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/bg_ripple.xml" value="0.3105485232067511" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/bg_ripple_pressed.xml" value="0.3105485232067511" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/bg_widget_group_selected.xml" value="0.33" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/ic_replace.xml" value="0.3105485232067511" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/ic_widget_edittext.xml" value="0.3105485232067511" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/drawable/ic_widget_seekbar.xml" value="0.3105485232067511" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_designer.xml" value="0.33" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_download.xml" value="0.30128205128205127" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_editor.xml" value="0.30128205128205127" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_simple_icon_text.xml" value="0.30128205128205127" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_widget_group_item.xml" value="0.33" />
+        <entry key="..\:/Projects/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_widget_item.xml" value="0.33" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/drawable/ic_website.xml" value="0.2189873417721519" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/drawable/ic_widget_button.xml" value="0.22179487179487178" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_designer.xml" value="0.264" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/activity_main.xml" value="0.33" />
         <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_create_project.xml" value="0.20854700854700856" />
         <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_create_project_content.xml" value="0.33" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/layout/layout_widget_item.xml" value="0.264" />
+        <entry key="..\:/Users/Akash Yadav/AndroidStudioProjects/android-ide/app/src/main/res/menu/menu_designer_widgets.xml" value="0.20854700854700856" />
       </map>
     </option>
   </component>

app/build.gradle

@@ -31,7 +31,9 @@ android {
                 "SmallSp"
     }
 	
-	buildFeatures.viewBinding true
+	buildFeatures {
+        viewBinding true
+    }
     
     signingConfigs {
         

app/src/main/java/com/itsaky/androidide/DesignerActivity.java

@@ -17,18 +17,43 @@
 **************************************************************************************/
 package com.itsaky.androidide;
 
-import android.content.Context;
 import android.os.Bundle;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.CheckedTextView;
+import android.widget.EditText;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ProgressBar;
+import android.widget.RadioButton;
+import android.widget.RelativeLayout;
+import android.widget.SeekBar;
+import android.widget.Spinner;
 import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.core.content.ContextCompat;
+
 import com.blankj.utilcode.util.ThrowableUtils;
+import com.itsaky.androidide.adapters.WidgetGroupItemAdapter;
+import com.itsaky.androidide.adapters.WidgetItemAdapter;
 import com.itsaky.androidide.app.StudioActivity;
 import com.itsaky.androidide.databinding.ActivityDesignerBinding;
+import com.itsaky.androidide.models.UIWidget;
+import com.itsaky.androidide.models.UIWidgetGroup;
 import com.itsaky.androidide.utils.Logger;
 import com.itsaky.layoutinflater.ILayoutInflater;
 import com.itsaky.layoutinflater.IView;
+import com.itsaky.toaster.Toaster;
+
+import org.jetbrains.annotations.Contract;
+
+import java.util.ArrayList;
+import java.util.List;
 
 public class DesignerActivity extends StudioActivity {
     
@@ -37,6 +62,13 @@ public class DesignerActivity extends StudioActivity {
     public static final String KEY_LAYOUT_PATH = "designer_layoutPath";
     private static final Logger LOG = Logger.instance("DesignerActivity");
 
+    private final List<UIWidgetGroup> widgetGroups = new ArrayList<>();
+
+    private final WidgetItemAdapter.OnWidgetDragListener dragListener = (widget, v, event) -> {
+        getApp().toast("Dragging: " + widget.getName(), Toaster.Type.INFO);
+        return true;
+    };
+
     @Override
     protected View bindLayout() {
         mBinding = ActivityDesignerBinding.inflate(getLayoutInflater());
@@ -47,9 +79,12 @@ public class DesignerActivity extends StudioActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        final var toggle = new ActionBarDrawerToggle(this, mBinding.getRoot(), mBinding.toolbar, R.string.app_name, R.string.app_name);
+        mBinding.getRoot().addDrawerListener(toggle);
+        toggle.syncState();
+
         setSupportActionBar(mBinding.toolbar);
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        mBinding.toolbar.setNavigationOnClickListener(v -> onBackPressed());
         
         final Bundle extras = getIntent().getExtras();
         final String path = extras.getString(KEY_LAYOUT_PATH, null);
@@ -57,25 +92,60 @@ public class DesignerActivity extends StudioActivity {
         try {
             final ILayoutInflater inflater = getApp().getLayoutInflater();
             inflater.resetContextProvider(newContextProvider());
-            final IView view = inflater.inflatePath(path, mBinding.realContainer);
+            final IView view = inflater.inflatePath(path, mBinding.layoutContainer);
-            mBinding.realContainer.addView(view.asView());
+            mBinding.layoutContainer.addView(view.asView());
         } catch (Throwable th) {
-            mBinding.realContainer.removeAllViews();
+            mBinding.layoutContainer.removeAllViews();
-            mBinding.realContainer.addView(createErrorText(th));
+            mBinding.layoutContainer.addView(createErrorText(th));
             
             LOG.error (getString(R.string.err_cannot_inflate_layout));
         }
+
+        setupWidgets();
     }
 
+    private void setupWidgets() {
+        final var common = new UIWidgetGroup(getString(R.string.widget_group_android));
+        common.addChild(new UIWidget(getString(R.string.widget_button), R.drawable.ic_widget_button, Button.class));
+        common.addChild(new UIWidget(getString(R.string.widget_checkbox), R.drawable.ic_widget_checkbox, CheckBox.class));
+        common.addChild(new UIWidget(getString(R.string.widget_checked_textview), R.drawable.ic_widget_checked_textview, CheckedTextView.class));
+        common.addChild(new UIWidget(getString(R.string.widget_edittext), R.drawable.ic_widget_edittext, EditText.class));
+        common.addChild(new UIWidget(getString(R.string.widget_image_button), R.drawable.ic_widget_image, ImageButton.class));
+        common.addChild(new UIWidget(getString(R.string.widget_image_view), R.drawable.ic_widget_image, ImageView.class));
+        common.addChild(new UIWidget(getString(R.string.widget_progressbar), R.drawable.ic_widget_progress, ProgressBar.class));
+        common.addChild(new UIWidget(getString(R.string.widget_radio_button), R.drawable.ic_widget_radio_button, RadioButton.class));
+        common.addChild(new UIWidget(getString(R.string.widget_seekbar), R.drawable.ic_widget_seekbar, SeekBar.class));
+        common.addChild(new UIWidget(getString(R.string.widget_spinner), R.drawable.ic_widget_spinner, Spinner.class));
+        common.addChild(new UIWidget(getString(R.string.widget_textview), R.drawable.ic_widget_textview, TextView.class));
+
+        // IMPORTANT: Do not select any other groups here
+        common.setSelected(true);
+        widgetGroups.add(common);
+
+        final var layouts = new UIWidgetGroup("Layouts");
+        layouts.addChild(new UIWidget("LinearLayout", R.drawable.ic_widget_linear, LinearLayout.class));
+        layouts.addChild(new UIWidget("RelativeLayout", R.drawable.ic_widget_relative, RelativeLayout.class));
+
+        widgetGroups.add(layouts);
+
+        final var adapter = new WidgetGroupItemAdapter(widgetGroups, this::showWidgetGroup);
+        mBinding.groupItems.setAdapter(adapter);
+
+        showWidgetGroup(common);
+    }
+
+    private void showWidgetGroup (@NonNull UIWidgetGroup group) {
+        final var children = group.getChildren();
+        mBinding.widgetItems.setAdapter(new WidgetItemAdapter(children, dragListener));
+    }
+
+    @NonNull
+    @Contract(pure = true)
     private ILayoutInflater.ContextProvider newContextProvider() {
-        return new ILayoutInflater.ContextProvider() {
+        return () -> DesignerActivity.this;
-            @Override
-            public Context getContext() {
-                return DesignerActivity.this;
-            }
-        };
     }
     
+    @NonNull
     private TextView createErrorText (Throwable th) {
         final TextView error = new TextView (this);
         error.setText(ThrowableUtils.getFullStackTrace(th));

app/src/main/java/com/itsaky/androidide/adapters/SimpleIconTextAdapter.java

@@ -0,0 +1,105 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.adapters;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.itsaky.androidide.databinding.LayoutSimpleIconTextBinding;
+import com.itsaky.androidide.models.IconTextListItem;
+
+import java.util.List;
+
+/**
+ * A RecyclerView.Adapter which can be used to show a list with an icon and a text.
+ *
+ * @author Akash Yadav
+ */
+public class SimpleIconTextAdapter extends RecyclerView.Adapter<SimpleIconTextAdapter.VH> {
+
+    private final List<? extends IconTextListItem> items;
+    private OnBindListener bindListener;
+
+    public SimpleIconTextAdapter(@NonNull List<? extends IconTextListItem> items) {
+        this.items = items;
+    }
+
+    public SimpleIconTextAdapter setOnBindListener (OnBindListener listener) {
+        this.bindListener = listener;
+        return this;
+    }
+
+    @NonNull
+    @Override
+    public VH onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new VH (LayoutSimpleIconTextBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull VH holder, int position) {
+        final var binding = holder.binding;
+        final var item = items.get(position);
+
+        if (this.bindListener != null && this.bindListener.onBind(item, holder, position)) {
+            return;
+        }
+
+        final var icon = item.getIconResource();
+
+        if (icon == -1) {
+            binding.icon.setVisibility(View.GONE);
+        } else {
+            binding.icon.setImageResource(icon);
+        }
+        binding.text.setText(item.getText());
+
+        if (this.bindListener != null) {
+            this.bindListener.postBind(item, holder, position);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return items.size();
+    }
+
+    public IconTextListItem getItemAt (int index) {
+        return this.items.get(index);
+    }
+
+    public static class VH extends RecyclerView.ViewHolder {
+
+        public final LayoutSimpleIconTextBinding binding;
+
+        public VH(@NonNull LayoutSimpleIconTextBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+    }
+
+    public static interface OnBindListener {
+        boolean onBind (IconTextListItem item, VH holder, int position);
+
+        default void postBind (IconTextListItem item, VH holder, int position) {}
+    }
+}

app/src/main/java/com/itsaky/androidide/adapters/WidgetGroupItemAdapter.java

@@ -0,0 +1,60 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.adapters;
+
+import com.itsaky.androidide.models.IconTextListItem;
+import com.itsaky.androidide.models.UIWidgetGroup;
+
+import java.util.List;
+
+public class WidgetGroupItemAdapter extends SimpleIconTextAdapter implements SimpleIconTextAdapter.OnBindListener {
+
+    private final OnGroupClickListener clickListener;
+
+    public WidgetGroupItemAdapter(List<UIWidgetGroup> groups, OnGroupClickListener clickListener) {
+        super(groups);
+        this.clickListener = clickListener;
+    }
+
+    @Override
+    public boolean onBind(IconTextListItem item, VH holder, int position) {
+        final var binding = holder.binding;
+        final var group = (UIWidgetGroup) getItemAt(position);
+
+        if (this.clickListener != null) {
+            binding.getRoot().setOnClickListener(v -> this.clickListener.onGroupClick(group));
+        }
+
+        return false;
+    }
+
+    @Override
+    public void postBind(IconTextListItem item, VH holder, int position) {
+        final var binding = holder.binding;
+        final var group = (UIWidgetGroup) item;
+
+        if (group.isSelected()) {
+
+        }
+    }
+
+    public interface OnGroupClickListener {
+        void onGroupClick(UIWidgetGroup group);
+    }
+
+}

app/src/main/java/com/itsaky/androidide/adapters/WidgetItemAdapter.java

@@ -0,0 +1,58 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.adapters;
+
+import android.view.DragEvent;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+
+import com.itsaky.androidide.models.IconTextListItem;
+import com.itsaky.androidide.models.UIWidget;
+
+import java.util.List;
+
+public class WidgetItemAdapter extends SimpleIconTextAdapter implements SimpleIconTextAdapter.OnBindListener {
+
+    private final OnWidgetDragListener dragListener;
+
+    public WidgetItemAdapter(List<UIWidget> widgets, OnWidgetDragListener dragListener) {
+        super(widgets);
+        this.dragListener = dragListener;
+
+        setOnBindListener(this);
+    }
+
+    @Override
+    public boolean onBind(IconTextListItem item, @NonNull VH holder, int position) {
+        final var binding = holder.binding;
+        final var widget = (UIWidget) getItemAt(position);
+
+        if (this.dragListener != null) {
+            binding.getRoot().setOnDragListener((v, event) -> {
+                return this.dragListener.onDrag(widget, v, event);
+            });
+        }
+
+        return false; // Returning true will not set the text and icon
+    }
+
+    public static interface OnWidgetDragListener {
+        boolean onDrag(UIWidget widget, View v, DragEvent event);
+    }
+}