CODEWITHSUNDEEP
pythonbuttoncenterkivy
user3509050
user3509050

Reputation: 31

like putting two buttons centered in kivy?

import kivy
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.gridlayout import GridLayout

class body(BoxLayout):
    def __init__(self, **kwargs):
        super(body,self).__init__(**kwargs);
        self.orientation = 'vertical';
        lst = ['button'];
        cont = len(lst);
        for d in lst:
            eval('self.'+d+'()');
        self.add(cont);

    def button(self):
        self.hLayout_1 = AnchorLayout(orientation='horizontal');
        self.button_1 = Button(text='conectar',size_hint=(None,None),size=(100,100));
        self.button_2 = Button(text='enviar',size_hint=(None,None),size=(100,100));
        self.hLayout_1.add_widget(self.button_1);
        self.hLayout_1.add_widget(self.button_2);

    def add(self,num):
        for n in range(num):
            eval('self.add_widget(self.hLayout_'+str(n+1)+')');

class Client(App):
    def build(self):
        b = body();
        return b


Client().run();

buttons leave me one on another, as I fix this?

or also with gridlayout

import kivy
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.gridlayout import GridLayout

class body(BoxLayout):
    def __init__(self, **kwargs):
        super(body,self).__init__(**kwargs);
        self.pos_hint={'center_x':.5}
        self.orientation = 'vertical';
        lst = ['button'];
        cont = len(lst);
        for d in lst:
            eval('self.'+d+'()');
        self.add(cont);

    def button(self):
        self.hLayout_1 = GridLayout(cols=2);
        self.button_1 = Button(text='conectar',size_hint=(None,None),size=(100,100));
        self.button_2 = Button(text='enviar',size_hint=(None,None),size=(100,100));
        self.hLayout_1.add_widget(self.button_1);
        self.hLayout_1.add_widget(self.button_2);

    def add(self,num):
        for n in range(num):
            eval('self.add_widget(self.hLayout_'+str(n+1)+')');

class Client(App):
    def build(self):
        b = body();
        return b


Client().run();

I can focus as the two buttons correctly?

I've tried with various layout, but it has not worked, maybe it's because it still did not quite understand that sirver "size_hint" appreciate some help.

Upvotes: 0

Views: 3414

Answers (2)

kitti
kitti

Reputation: 14814

Ok, I think this is what you want:

class Body(FloatLayout): # capitalize class per convention, and extend FloatLayout instead of BoxLayout
    def __init__(self, **kwargs):
        super(Body, self).__init__(**kwargs)
        # create a sized BoxLayout
        centerlayout = BoxLayout(size_hint=(None, None), size=(200, 100))
        # create and add buttons - they will be sized automatically in the BoxLayout
        button_1 = Button(text='conectar')
        button_2 = Button(text='enviar')
        centerlayout.add_widget(button_1)
        centerlayout.add_widget(button_2)
        # add the BoxLayout
        self.add_widget(centerlayout)
        # center the BoxLayout to our center - this needs to be bound, as Body is not yet positioned
        self.bind(center=centerlayout.setter('center'))

You should also look into the kv language; it makes things much easier, especially as your widgets get more complex.

from kivy.lang import Builder
body = Builder.load_string('''
FloatLayout:
    BoxLayout:
        size_hint: None, None
        size: 200, 100
        center: root.center

        Button:
            text: 'conectar'
        Button:
            text: 'enviar'
''')

demo image

Upvotes: 2

inclement
inclement

Reputation: 29460

buttons leave me one on another, as I fix this?

This is because you use an AnchorLayout. It aligns its children to the anchor, not to each other, so it's correct behaviour that they are placed in the same place.

The solution is to not use the AnchorLayout at all.

I can focus as the two buttons correctly?

Can you explain what you mean by this?

Also:

  • With python, you don't need semicolons at the ends of lines.
  • eval('self.'+d+'()'); is bad style, you could use getattr instead, e.g. getattr(self, d)().

Upvotes: 1

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