我是一个活泼的新手，我试图通过将它们嵌入Scatter小部件来移动一组小图片。实际尺寸为160 * 200像素的图片。 在我使用的FloatLayout上正确显示图片（右侧位置），但是当我尝试移动其中一个时，Scatter的边界框比图像大很多倍，我不能通过点击每个图片来挑选每个图片。图片。 我使用的非常基本的kv代码如下：
<TTTGame>:
FloatLayout:
Scatter:
pos: 200, 800
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/h2red.jpeg'
size_hint: 1, 1
allow_strech: True
keep_ratio: False
size: 70, 100
Scatter:
pos: 200+(300*1), 800
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/h3red.jpeg'
size_hint: None,None
size: 70, 100
Scatter:
pos: 200+(300*2), 800
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/h4red.jpeg'
size_hint: None,None
size: 70, 100
Scatter:
pos: 200, 400
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/c2black.jpeg'
size_hint: None,None
size: 70, 100
Scatter:
pos: 200+(300*1), 400
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/c3black.jpeg'
size_hint: None,None
size: 70, 100
Scatter:
pos: 200+(300*2), 400
size: 70,100
do_rotation: False
do_scale: False
do_translation: True
auto_bring_to_front: True
Image:
source: 'data/c4black.jpeg'
size_hint: None,None
size: 70, 100
Splitter:
sizable_from: 'left'
size_hint: 0.3, 1
BoxLayout:
orientation: 'vertical'
size_hint: 1, 1
spacing: 10
padding: 20
BoxLayout:
orientation: 'vertical'
size_hint: 0.7, 0.7
Label:
text: 'Game card'
size_hint: 1, 0.1
font_size: 20
Image:
source: 'data/h2red.jpeg'
size_hint: 0.9, 0.9
Button:
text: 'PASS'
size_hint: 1, .2
font_size: 18
on_press: root.pass_on_press_callback()
Button:
text: 'Help'
size_hint: 1, .2
font_size: 18
on_press: root.help_on_press_callback()
基本上，我希望Scatter和图片一样大。 请问有专家可以帮助我吗？
答案 0 :(得分：0)
我认为你需要的只是here。这是一个很好的文档示例，在Scatter中使用图片。
main.py：
import kivy
kivy.require('1.0.6')
from glob import glob
from random import randint
from os.path import join, dirname
from kivy.app import App
from kivy.logger import Logger
from kivy.uix.scatter import Scatter
from kivy.properties import StringProperty
# FIXME this shouldn't be necessary
from kivy.core.window import Window
class Picture(Scatter):
'''Picture is the class that will show the image with a white border and a
shadow. They are nothing here because almost everything is inside the
picture.kv. Check the rule named <Picture> inside the file, and you'll see
how the Picture() is really constructed and used.
The source property will be the filename to show.
'''
source = StringProperty(None)
class PicturesApp(App):
def build(self):
# the root is created in pictures.kv
root = self.root
# get any files into images directory
curdir = dirname(__file__)
for filename in glob(join(curdir, 'images', '*')):
try:
# load the image
picture = Picture(source=filename, rotation=randint(-30,30))
# add to the main field
root.add_widget(picture)
except Exception as e:
Logger.exception('Pictures: Unable to load <%s>' % filename)
def on_pause(self):
return True
if __name__ == '__main__':
PicturesApp().run()
pictures.kv：
#:kivy 1.0
#:import kivy kivy
#:import win kivy.core.window
FloatLayout:
canvas:
Color:
rgb: 1, 1, 1
Rectangle:
source: 'data/images/background.jpg'
size: self.size
BoxLayout:
padding: 10
spacing: 10
size_hint: 1, None
pos_hint: {'top': 1}
height: 44
Image:
size_hint: None, None
size: 24, 24
source: 'data/logo/kivy-icon-24.png'
Label:
height: 24
text_size: self.width, None
color: (1, 1, 1, .8)
text: 'Kivy %s - Pictures' % kivy.__version__
<Picture>:
# each time a picture is created, the image can delay the loading
# as soon as the image is loaded, ensure that the center is changed
# to the center of the screen.
on_size: self.center = win.Window.center
size: image.size
size_hint: None, None
Image:
id: image
source: root.source
# create initial image to be 400 pixels width
size: 400, 400 / self.image_ratio
# add shadow background
canvas.before:
Color:
rgba: 1,1,1,1
BorderImage:
source: 'shadow32.png'
border: (36,36,36,36)
size:(self.width+72, self.height+72)
pos: (-36,-36)
答案 1 :(得分：0)
一个最小的例子。
from kivy.app import App
from kivy.properties import StringProperty
from kivy.lang import Builder
KV = """
#:import win kivy.core.window
<Picture@Scatter>:
source: None
on_size: self.center = win.Window.center
size: image.size
size_hint: None, None
Image:
id: image
source: root.source
FloatLayout:
Picture:
source: "test.jpg"
Picture:
source: "test.jpg"
"""
class MyApp(App):
def build(self):
return Builder.load_string(KV)
MyApp().run()