2.0.0 - Material Design 3

Add new example.

examples/progressindicator.py

@@ -0,0 +1,162 @@
+from kivy.animation import Animation
+from kivy.clock import Clock
+from kivy.lang import Builder
+from kivy.properties import StringProperty, BooleanProperty
+
+from kivymd.app import MDApp
+from kivymd.uix.boxlayout import MDBoxLayout
+
+from examples.common_app import CommonApp
+
+KV = """
+<SelectedItem>
+    adaptive_size: True
+    spacing: "12dp"
+
+    MDCheckbox:
+        group: root.group
+        on_active: root.dispatch("on_active", self.active)
+        active: root.active
+
+    MDLabel:
+        text: root.text
+        theme_line_height: "Custom"
+        adaptive_size: True
+        pos_hint: {'center_y': .5}
+        line_height: 1
+
+
+MDScreen:
+    md_bg_color: self.theme_cls.backgroundColor
+
+    MDIconButton:
+        on_release: app.open_menu(self)
+        pos_hint: {"top": .98}
+        x: dp(12)
+        icon: "menu"
+
+    MDBoxLayout:
+        orientation: "vertical"
+        pos_hint: {'center_x': .5}
+        size_hint_x: .5
+        padding: 0, "100dp", 0, "24dp"
+        spacing: "24dp"
+
+        MDBoxLayout:
+            adaptive_height: True
+            spacing: "24dp"
+
+            MDLinearProgressIndicator:
+                id: linear_indicator_horizontal
+
+            MDLinearProgressIndicator:
+                id: linear_indicator_vertical
+                orientation: "vertical"
+                size_hint_y: None
+                height: "100dp"
+
+            MDCircularProgressIndicator:
+                id: circular_indicator
+                size_hint: None, None
+                size: "36dp", "36dp"
+                active: False
+
+        MDButton:
+            pos_hint: {'center_x': .5}
+            on_release: app.run_stop_demo()
+    
+            MDButtonText:
+                id: button_text
+                text: "Run demo"
+
+        Widget:
+
+        MDLabel:
+            text: "Type"
+            adaptive_height: True
+            pos_hint: {'center_y': .5}
+
+        MDBoxLayout:
+            adaptive_height: True
+            spacing: "12dp"
+
+            SelectedItem:
+                text: "Determinate"
+                on_active: app.set_type_indicator(*args, "determinate")
+
+            SelectedItem:
+                text: "Indeterminate"
+                active: True
+                on_active: app.set_type_indicator(*args, "indeterminate")
+"""
+
+
+class SelectedItem(MDBoxLayout):
+    active = BooleanProperty(False)
+    text = StringProperty()
+    group = StringProperty("type")
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.register_event_type("on_active")
+
+    def on_active(self, *args):
+        ...
+
+
+class Example(MDApp, CommonApp):
+    type_indicator = "indeterminate"
+    active_indicator = False
+    demo_is_run = False
+
+    def build(self):
+        self.theme_cls.primary_palette = "Olive"
+        self.theme_cls.theme_style = "Dark"
+        return Builder.load_string(KV)
+
+    def run_stop_demo(self):
+        self.demo_is_run = not self.demo_is_run
+        self.root.ids.button_text.text = (
+            "Stop demo" if self.demo_is_run else "Run demo"
+        )
+        linear_indicator_horizontal = self.root.ids.linear_indicator_horizontal
+        linear_indicator_vertical = self.root.ids.linear_indicator_vertical
+
+        if self.demo_is_run:
+            self.root.ids.circular_indicator.active = True
+            if self.type_indicator == "determinate":
+                linear_indicator_horizontal.start()
+                linear_indicator_vertical.start()
+            else:
+                Animation(value=80, d=0.2).start(linear_indicator_vertical)
+                Animation(value=80, d=0.2).start(linear_indicator_horizontal)
+        else:
+            self.root.ids.circular_indicator.active = False
+            if self.type_indicator == "determinate":
+                linear_indicator_horizontal.stop()
+                linear_indicator_vertical.stop()
+            else:
+                Animation(value=0, d=0.2).start(linear_indicator_vertical)
+                Animation(value=0, d=0.2).start(linear_indicator_horizontal)
+
+    def set_type_indicator(self, instance_check, active, type_indicator):
+        if active and self.demo_is_run:
+            self.run_stop_demo()
+
+        self.type_indicator = type_indicator
+        linear_indicator_horizontal = self.root.ids.linear_indicator_horizontal
+        linear_indicator_vertical = self.root.ids.linear_indicator_vertical
+
+        if active:
+            self.root.ids.circular_indicator.determinate = (
+                True if type_indicator == "determinate" else False
+            )
+            if type_indicator == "determinate":
+                linear_indicator_horizontal.type = type_indicator
+                linear_indicator_vertical.type = type_indicator
+
+    def disabled_widgets(self):
+        ...
+
+
+Example().run()