Question

正如标题所说，我试图在SparseGridLayout上移动小部件。原因是在高辐射环境中测试显示器。在以前的代码迭代中，我在没有SparseGridLayout的情况下设置了动画小部件，但它们无法调整大小。当我搬到SparsGridLayout时，他们消失了！经过一番工作，我创建了第二个FloatLayout。现在我看到了小部件，但无论我做什么，它们都是静止的！我一直在使用Kivy Crash Course的代码来获取动画，并修改了inclem.net的布局代码。我使用的是kivy 1.9.1和python 2.7。以下是一些代码：

`<CombinedLayout>:
    SparseGridLayout:


    BlackHorizontalRect
    BlackVerticalRect
.
.
.
 class CombinedLayout(FloatLayout):
    pass
.
.
.
class BlackHorizontalRect(Widget):
    velocity = ListProperty([0, 2])

    def __init__(self, **kwargs):
        super(BlackHorizontalRect,self).__init__(**kwargs)
        Clock.schedule_interval(self.update, 1/60.)

    def update(self, *args):
        self.x += self.velocity[0]
        self.y += self.velocity[1]

        if self.x <0 or (self.x + self.width) > Window.width:
            self.velocity[0] *= -1
        if self.y <0 or (self.y + self.height) > Window.height:
            self.velocity[1] *= -1
class SparseGridLayout(FloatLayout): 


    rows = NumericProperty(1) 
    columns = NumericProperty(1) 
    shape = ReferenceListProperty(rows, columns) 


    def do_layout(self, *args): 
        shape_hint = (1. / self.columns, 1. / self.rows) 
        for child in self.children: 
            child.size_hint = shape_hint 
            if not hasattr(child, 'row'): 
                child.row = 0 
            if not hasattr(child, 'column'): 
                child.column = 0 


            child.pos_hint = {'x': shape_hint[0] * child.row, 
                              'y': shape_hint[1] * child.column} 

        super(SparseGridLayout, self).do_layout(*args) 
class ExampleApp(App): 

    def build(self): 
        labels = [] 
        for i in range(5): 
            for j in range(5): 
                if (i == 0 and j==2) or (i ==1 and j ==1) or (i == 2 and j ==0):
                    labels.append(GridLabel0(row=i, column=j)) 
                if (i == 1 and j == 2) or (i == 2 and j == 1) or (i == 3 and j == 0):
                    labels.append(GridLabel1(row=i, column=j)) 
                if (i == 2 and j==2) or (i==3 and j==1) or (i ==4 and j==0):
                    labels.append(GridLabel2(row=i, column=j))
                if (i == 3 and j ==2) or (i==4 and j==1) or (i==0 and j==0):
                    labels.append(GridLabel3(row=i, column=j))
                if (i == 4 and j==2) or (i==0 and j==1) or (i==1 and j==0):
                    labels.append(GridLabel4(row=i, column=j))   
        layout = SparseGridLayout(rows=3, columns=5) 
        for label in labels: 
            layout.add_widget(label)
        c = CombinedLayout()

        wid1 = BlackVerticalRect()
        wid2 = BlackHorizontalRect()

        c.add_widget(layout, index = 1)
        c.add_widget(wid1)
        c.add_widget(wid2)






        return c


if __name__ == '__main__':
    ExampleApp().run()'

非常感谢任何帮助。

在SparseGridLayout上移动小部件

0 个答案: