uix/transition: add MDSharedAxisTransistion

examples/md_axis_transition.py

@@ -0,0 +1,204 @@
+from kivy.lang import Builder
+import os
+import kivymd
+from kivymd.app import MDApp
+from kivy.uix.screenmanager import ScreenManager
+from kivymd.uix.screen import MDScreen
+from kivymd.uix.transition import MDSharedAxisTransition
+from examples.common_app import CommonApp
+
+KV = """
+<Check@MDCheckbox>:
+    group: 'group'
+    size_hint: None, 1
+    width:self.height
+
+<SettingsItem@ButtonBehavior+BoxLayout>:
+    icon:"wifi"
+    text:"Network & Internet"
+    subtext:"Network settings"
+    size_hint_y:None
+    height:dp(70)
+    padding:dp(10)
+    spacing:dp(10)
+    on_release:
+        app.root.get_screen("battery").ids.main_icon.icon = self.icon
+        app.root.get_screen("battery").ids.main_text.text = self.text
+        app.root.transition.opposite = False
+        app.root.current = "battery"
+    MDIconButton:
+        style: "tonal"
+        size_hint:None, 1
+        width:self.height
+        icon:root.icon
+    BoxLayout:
+        orientation:"vertical"
+        MDLabel:
+            text:root.text
+            font_style:"Title"
+            role:"medium"
+        MDLabel:
+            text:root.subtext
+            font_style:"Label"
+            role:"large"
+            theme_text_color:"Custom"
+            text_color:app.theme_cls.surfaceContainerLowestColor[:-1] + [0.5]
+    
+<SettingsScreen@MDScreen>:
+    name:"main"
+    md_bg_color:app.theme_cls.surfaceContainerLowColor
+    MDBoxLayout:
+        padding:[dp(10), 0]
+        orientation:"vertical"
+        BoxLayout:
+            size_hint_y:None
+            height:dp(70)
+            padding:[0, dp(10)]
+            MDIconButton:
+                size_hint:None, None
+                size:[dp(50)] * 2
+                on_release: app.open_menu(self)
+                icon: "menu"
+            Widget:
+            MDIconButton:
+                size_hint:None, None
+                size:[dp(50)] * 2
+                on_release: app.open_menu(self)
+                icon: "magnify"
+            MDIconButton:
+                size_hint:None, None
+                size:[dp(50)] * 2
+                on_release: app.open_menu(self)
+                icon: "dots-vertical"
+        MDLabel:
+            text:"Settings"
+            halign:"center"
+            theme_font_size:"Custom"
+            font_size:"30sp"
+            style:"bold"
+            size_hint_y:None
+            height:dp(70)
+        MDBoxLayout:
+            md_bg_color:app.theme_cls.surfaceContainerHighColor
+            padding:[dp(10), 0]
+            radius:[self.height / 2]*4
+            size_hint_y:None
+            height:dp(60)
+            padding:[dp(10), dp(10)]
+            spacing:dp(10)
+            MDIconButton:
+                size_hint_y:1
+                icon:"magnify"
+                size_hint_x:None
+                width:self.height
+            MDLabel:
+                text:"Search in settings"
+                font_style:"Body"
+                role:"large"
+                theme_text_color:"Custom"
+                text_color:app.theme_cls.surfaceContainerLowestColor[:-1] + [0.5]
+            Image:
+                size_hint_y:1
+                source:app.image_path
+                size_hint_x:None
+                width:self.height
+        BoxLayout:
+            size_hint_y:None
+            height:dp(20)
+        MDBoxLayout:
+            md_bg_color:app.theme_cls.surfaceContainerHighColor
+            radius:[dp(25)] * 4
+            size_hint_y:None
+            height:self.minimum_height
+            orientation:"vertical"
+            SettingsItem:
+                icon:"wifi"
+            SettingsItem:
+                icon:"battery-90"
+                text:"Battery & Power"
+                subtext:"42% - About 14hr left"
+            SettingsItem:
+                icon:"palette-outline"
+                text:"Wallpaper & Style"
+                subtext:"Colors, theme style"
+            SettingsItem:
+                icon:"android"
+                text:"System Info"
+                subtext:"About system"
+        BoxLayout:
+            size_hint_y:None
+            height:dp(70)
+            padding:[(self.width - dp(50)*6), dp(25)]
+            spacing:dp(10)
+            Check:
+                active:True
+                on_active:
+                    setattr(app.transition, "transition_axis", "x") if self.active else app
+            MDLabel:
+                size_hint_x:None
+                width:dp(50)
+                text:"X"
+            Check:
+                on_active:
+                    setattr(app.transition, "transition_axis", "y") if self.active else app
+            MDLabel:
+                size_hint_x:None
+                width:dp(50)
+                text:"Y"
+            Check:
+                on_active:
+                    setattr(app.transition, "transition_axis", "z") if self.active else app
+            MDLabel:
+                size_hint_x:None
+                width:dp(50)
+                text:"Z"
+        Widget:
+        
+<BatteryScreen@MDScreen>:
+    name:"battery"
+    md_bg_color:app.theme_cls.surfaceContainerLowColor
+    MDLabel:
+        id:main_text
+        text:"Battery"
+        halign:"center"
+        theme_font_size:"Custom"
+        font_size:"30sp"
+        style:"bold"
+        size_hint_y:None
+        height:dp(100)
+        pos_hint:{"center_y":0.8}
+    MDIconButton:
+        id:main_icon
+        icon:"wifi"
+        style:"tonal"
+        pos_hint:{"center_y":0.7, "center_x":0.5}
+    MDButton:
+        pos_hint:{"center_x":0.5, "center_y":0.5}
+        style: "filled"
+        on_release:
+            app.root.transition.opposite = True
+            app.root.current = "main"
+        MDButtonText:
+            text: "Go Back" 
+
+ScreenManager:
+    transition:app.transition
+    canvas:
+        Color:
+            # this is important, else you will see black 
+            rgba:app.theme_cls.surfaceContainerLowColor
+        Rectangle:
+            pos:self.pos
+            size:self.size
+    SettingsScreen:
+    BatteryScreen:
+"""
+
+
+class ExampleApp(MDApp, CommonApp):
+    image_path = os.path.join(kivymd.__path__[0], "images", "logo", "kivymd-icon-256.png")
+    def build(self):
+        self.transition = MDSharedAxisTransition()
+        return Builder.load_string(KV)
+
+ExampleApp().run()

kivymd/uix/transition/__init__.py

@@ -2,4 +2,5 @@
     MDFadeSlideTransition,
     MDSlideTransition,
     MDSwapTransition,
+    MDSharedAxisTransition,
 )