Add list_view.py

owenthcarey · owenthcarey · commit 04b298ac0fb2 · 2023-07-09T17:09:05.000-07:00
diff --git a/apps/android_pythonnative_3/app/src/main/python/app/main_3.py b/apps/android_pythonnative_3/app/src/main/python/app/main_3.py
@@ -8,10 +8,9 @@ def __init__(self, native_instance):
     def on_create(self):
         super().on_create()
         stack_view = pn.StackView(self.native_instance)
-        button = pn.Button(self.native_instance, "Button")
-        label = pn.Label(self.native_instance, "Label")
-        stack_view.add_view(button)
-        stack_view.add_view(label)
+        list_data = ["item_{}".format(i) for i in range(100)]
+        list_view = pn.ListView(self.native_instance, list_data)
+        stack_view.add_view(list_view)
         self.set_root_view(stack_view)
 
     def on_start(self):
diff --git a/libs/pythonnative/pythonnative/__init__.py b/libs/pythonnative/pythonnative/__init__.py
@@ -3,6 +3,7 @@
 from .date_picker import DatePicker
 from .image_view import ImageView
 from .label import Label
+from .list_view import ListView
 from .material_activity_inidicator_view import MaterialActivityIndicatorView
 from .material_button import MaterialButton
 from .material_date_picker import MaterialDatePicker
@@ -27,6 +28,7 @@
     "DatePicker",
     "ImageView",
     "Label",
+    "ListView",
     "MaterialActivityIndicatorView",
     "MaterialButton",
     "MaterialDatePicker",
diff --git a/libs/pythonnative/pythonnative/list_view.py b/libs/pythonnative/pythonnative/list_view.py
@@ -0,0 +1,69 @@
+from abc import ABC, abstractmethod
+from .utils import IS_ANDROID
+from .view import ViewBase
+
+# ========================================
+# Base class
+# ========================================
+
+
+class ListViewBase(ABC):
+    @abstractmethod
+    def __init__(self) -> None:
+        super().__init__()
+
+    @abstractmethod
+    def set_data(self, data: list) -> None:
+        pass
+
+    @abstractmethod
+    def get_data(self) -> list:
+        pass
+
+
+if IS_ANDROID:
+    # ========================================
+    # Android class
+    # ========================================
+
+    from java import jclass
+
+    class ListView(ListViewBase, ViewBase):
+        def __init__(self, context, data: list = []) -> None:
+            super().__init__()
+            self.context = context
+            self.native_class = jclass("android.widget.ListView")
+            self.native_instance = self.native_class(context)
+            self.set_data(data)
+
+        def set_data(self, data: list) -> None:
+            adapter = jclass("android.widget.ArrayAdapter")(
+                self.context, jclass("android.R$layout").simple_list_item_1, data
+            )
+            self.native_instance.setAdapter(adapter)
+
+        def get_data(self) -> list:
+            adapter = self.native_instance.getAdapter()
+            return [adapter.getItem(i) for i in range(adapter.getCount())]
+
+else:
+    # ========================================
+    # iOS class
+    # ========================================
+
+    from rubicon.objc import ObjCClass
+
+    class ListView(ListViewBase, ViewBase):
+        def __init__(self, data: list = []) -> None:
+            super().__init__()
+            self.native_class = ObjCClass("UITableView")
+            self.native_instance = self.native_class.alloc().init()
+            self.set_data(data)
+
+        def set_data(self, data: list) -> None:
+            # Note: This is a simplified representation. Normally, you would need to create a UITableViewDataSource.
+            self.native_instance.reloadData()
+
+        def get_data(self) -> list:
+            # Note: This is a simplified representation. Normally, you would need to get data from the UITableViewDataSource.
+            return []
