Arkadaşlar merhaba;
Aşağıda kivy"nin sitesinden almış olduğum örnek RecycleView kodları bulunuyor. Burda yaptığım tek değişiklik multiselect özelliğini False yapmak.
link = https://kivy.org/docs/api-kivy.uix.recycleview.html
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.recycleview import RecycleView
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.label import Label
from kivy.properties import BooleanProperty
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
Builder.load_string('''
<SelectableLabel>:
# Draw a background to indicate selection
canvas.before:
Color:
rgba: (.0, 0.9, .1, .3) if self.selected else (0, 0, 0, 1)
Rectangle:
pos: self.pos
size: self.size
<RV>:
viewclass: 'SelectableLabel'
SelectableRecycleBoxLayout:
default_size: None, dp(56)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: False
touch_multiselect: True
''')
class SelectableRecycleBoxLayout(FocusBehavior,
LayoutSelectionBehavior, RecycleBoxLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableLabel(RecycleDataViewBehavior, Label):
''' Add selection support to the Label '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableLabel, self).refresh_view_attrs(
rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableLabel, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
if is_selected:
print("selection changed to {0}".format(rv.data[index]))
else:
print("selection removed for {0}".format(rv.data[index]))
class RV(RecycleView):
def __init__(self, **kwargs):
super(RV, self).__init__(**kwargs)
self.data = [{'text': str(x)} for x in range(100)]
class TestApp(App):
def build(self):
return RV()
if __name__ == '__main__':
TestApp().run()
Burada da ScreenManager ile ilgili almış olduğum örnek kodlar var
link = https://kivy.org/docs/api-kivy.uix.screenmanager.html
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
# Create both screens. Please note the root.manager.current: this is how
# you can control the ScreenManager from kv. Each screen has by default a
# property manager that gives you the instance of the ScreenManager used.
Builder.load_string("""
<MenuScreen>:
BoxLayout:
Button:
text: 'Goto settings'
on_press: root.manager.current = 'settings'
Button:
text: 'Quit'
<SettingsScreen>:
BoxLayout:
Button:
text: 'My settings button'
Button:
text: 'Back to menu'
on_press: root.manager.current = 'menu'
""")
# Declare both screens
class MenuScreen(Screen):
pass
class SettingsScreen(Screen):
pass
# Create the screen manager
sm = ScreenManager()
sm.add_widget(MenuScreen(name='menu'))
sm.add_widget(SettingsScreen(name='settings'))
class TestApp(App):
def build(self):
return sm
if __name__ == '__main__':
TestApp().run()
Ve son olarak yukarıdaki iki örnek kodları editleyerek kendi yazmış olduğum kodlar
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang.builder import Builder
from kivy.uix.recycleview import RecycleView
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.label import Label
from kivy.properties import BooleanProperty
Builder.load_string('''<TestScreen>:
viewclass: 'SelectableLabel'
SelectableRecycleBoxLayout:
default_size:None, dp(56)
default_size_hint:1, None
size_hint_y:None
height:self.minimum_height
orientation: 'vertical'
multiselect: False
touch_multiselect: True
<SelectableLabel>:
# Draw a background to indicate selection
canvas.before:
Color:
rgba: (.0, 0.9, .1, .3) if self.selected else (0, 0, 0, 1)
Rectangle:
pos: self.pos
size: self.size''')
class SelectableRecycleBoxLayout(FocusBehavior,
LayoutSelectionBehavior, RecycleBoxLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableLabel(RecycleDataViewBehavior, Label):
''' Add selection support to the Label '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableLabel, self).refresh_view_attrs(
rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableLabel, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
if is_selected:
print("selection changed to {0}".format(rv.data[index]))
else:
print("selection removed for {0}".format(rv.data[index]))
class TestScreen(Screen, RecycleView):
def __init__(self, **kwargs):
super(TestScreen, self).__init__(**kwargs)
self.data = [{'text': str(x)} for x in range(100)]
class TestScreen1(Screen):
pass
sm = ScreenManager()
sm.add_widget(TestScreen(name= 'Screen1'))
sm.add_widget(TestScreen1(name= 'Screen2'))
class MainApp(App):
def build(self):
return sm
if __name__ == '__main__':
MainApp().run()
Burada yapmaya çalıştığım şey şu RecycleView içindeki öğelerin herhangi birine tıklandığında Screen2 ye geçsin. Ancak kodları incelediğinizde göreceğiniz üzere RecycleView’i yukarıdaki gibi bir ScreenManager da görüntülediğim zaman seçim yapılamıyor. Yardımcı olabilirseniz çok sevinirim arkadaşlar, herkese iyi çalışmalar.