Need Technical Support

[Aladdin Hammodi]

hello 

im trying to write a kivy app 

when i try to run the .py file this is leading to not respond the python 

this is my main.py 

=============

#main.py

import kivy

kivy.require("1.9.1")

from kivy.app import App

from kivy.uix.widget import Widget

from kivy.uix.screenmanager import ScreenManager, Screen

from kivy.uix.floatlayout import FloatLayout

from kivy.uix.popup import Popup

from kivy.core.window import Window

from kivy.uix.textinput import TextInput

from kivy.properties import ObjectProperty

from kivy.lang import Builder

Builder.load_file(main.kv)

# Create a class for all screens in which you can include

# helpful methods specific to that screen

class ScreenOne(Screen):

    pass

 

 

class ScreenTwo(Screen):

    pass

 

 

# The ScreenManager controls moving between screens

screen_manager = ScreenManager()

 

# Add the screens to the manager and then supply a name

# that is used to switch screens

screen_manager.add_widget(ScreenOne(name="screen_one"))

screen_manager.add_widget(ScreenTwo(name="screen_two"))

 

class MainApp(App):

 

    def build(self):

        return screen_manager

 

sample_app = MainApp()

sample_app.run()

=======

# main.kv file 

<ScreenOne>:

    FloatLayout:

        canvas:

            source:'image1'  # making this picture as screen background

        Label:

            text:'Hello\n Welcome to my app\n'

            font_size: 40

        Button:

            text: 'Next'

            pos: 0,1

            font_size:20

            hint_size:0.1,0.05

            on_press:root.manager.current.'screen_two'

<ScreenTwo>:

    FloatLayout:

        canvas:

            source:'image1'

        Label:

            text:'Please insert your name'

            text:'Please insert your Password'

            font_size: 40

        Button:

            text: 'Next'

            pos: 0,1

            font_size:20

            hint_size:0.1,0.05

            on_press:root.manager.current.'screen_one'

Please help me find out what is my problem 

[Leonardo Rodriguez]

I don't know if there is another bug, but first of all is this line:

Builder.load_file(main.kv)

it should be 

Builder.load_file("main.kv")

Hope it helps

[John Anderson]

"hint_size" should be "size_hint".

To get your background image you need a Rectangle in the Canvas, like this:

        canvas:

            Rectangle:

                source: "image1"  # making this picture as screen background

                pos: self.pos

                size: self.size

Your "on_press" methods need to set a value like:

    on_press:root.manager.current='screen_two'

Your Label on screen 2 has two text properties. only the last will have effect. You can use two labels with different text properties, or

one label with a multiline text property like:

    text:'Please insert your name\nPlease insert your Password'

Hope this helps.