from kivy.lang import Builder
from kivymd.app import MDApp
import add_owner
import create_account
from kivy.uix.screenmanager import ScreenManager
class MainApp(MDApp):
def build(self):
self.theme_cls.theme_style = "Light"
self.theme_cls.primary_palette = "BlueGray"
return Builder.load_file('home_page.kv')
def adder(self):
return add_owner
def creater(self):
return create_account
MainApp().run()
When I run this code which file i want to open by pressing a button they are opening without pressing button
Related
I am using a 3rd-party library it will hide iOS status bar when calling. After that, I can't show the status bar back on screen.
I can control status bar by StatusBar component in React Native normally.
However, I tried to call a iOS library https://www.dynamsoft.com/Products/dynamsoft-webcam-sdk.aspx it will hide the status bar when showing it's screen.
After it hide the status bar, I can't show it up again using StatusBar.setHidden(false).
It don't prompt any error, just simply no effect.
Anyone knows what's going on and how can I show the status bar back in this situation?
You can add the following code in your screen where you want to show your status bar
import React, { Component } from 'react';
import { StatusBar } from 'react-native';
class MyComponent extends Component {
componentDidMount() {
StatusBar.setHidden(false);
}
}
or you can also do
<StatusBar hidden={false} />
This will help you to show status bar in your desired screen
The workaround below may work.
import React, { Component } from 'react';
import { StatusBar } from 'react-native';
class MyComponent extends Component {
componentDidMount() {
setTimeout(() => {StatusBar.setHidden(false);},1000)
}
}
I am getting an error when using the following code in my index.ios.js file:
import React, { Component } from 'react';
import { AppRegistry, Text, View } from 'react-native';
import { Actions, Router, Route, Scene } from 'react-native-router-flux';
import {Categories} from './Components/Categories';
import {CarRacing} from './Components/CarRacing';
const scenes = Actions.create(
<Scene key="root">
<Scene key="Categories" name="Categories" component={Categories} title="Categories" initial={true}/>
<Scene key="CarRacing" name="CarRacing" component={CarRacing} title="CarRacing"/>
</Scene>
);
export default class Motorsport extends Component {
render() {
return (
<Router scenes={scenes}/>
);
}
}
AppRegistry.registerComponent('Motorsport', () => Motorsport);
Categories are a list of categories in a tableview done by 'react-native-tableview'. When clicking on the the CarRacing TableView row, I get the following error:
route.children.forEach is not a function. (In 'route.children.forEach(function(r,i) {(0,_Util.assert)(scenes[r],'Empty scene for key='+route.key);if*scenes[r].inital) {index=i;}})','route.children.forEach' is undefined)
I am not sure what I have done wrong here. I understand the error, but I don't quite get what I did in my code to mess this up.
Any ideas? Thanks!
I want to start a 30 sec timer as soon as button is clicked.
My attempt:
#!/usr/bin/kivy
import kivy
kivy.require('1.7.2')
from random import random
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.gridlayout import GridLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.popup import Popup
from random import random
from random import choice
from kivy.properties import StringProperty
import time
from kivy.clock import Clock
t=30
check=0
def my_callback(dt):
global t
t=t-1
self.ids['timer'].text=str(t)
Builder.load_string("""
<MenuScreen>:
GridLayout:
cols: 1
Button:
id: btn_0
text: "press me to start timer"
on_press: root.val0()
Label:
text:'timer'
Label:
id: timer
text:str(30)
""")
class MenuScreen(Screen):
def val0(self):
global check
if(check==0):
check=check+1
Clock.schedule_interval(my_callback, 1)
sm = ScreenManager()
menu_screen = MenuScreen(name='menu')
sm.add_widget(menu_screen)
class TestApp(App):
def build(self):
return sm
if __name__ == '__main__':
TestApp().run()
I am not able to figure out, how to use kivy clock to change data on label. Currently i am getting error that self is not defined. Please advice.
The error is because you reference self, but this isn't defined within the my_callback function, you must pass it as an argument.
A convenient way is to use functools.partial. You could replace the Clock scheduling with:
from functools import partial
Clock.schedule_interval(partial(my_callback, self), 1)
and declare my_callback as
def my_callback(screen, dt):
global t
t -= 1
screen.ids.timer.text = str(t)
While inclement's method would work, it would be even simpler to add the callback as a method of the class MenuScreen
class MenuScreen(Screen):
def my_callback(self, dt):
global t
t=t-1
self.ids['timer'].text=str(t)
Then change the call to schedule the clock so it points to the method
Clock.schedule_interval(self.my_callback, 1)
I have recently shifted from c# to try Javafx2. I am also new to this forum.
I have been stuck trying to implement internal frames in Javafx.
I stumbled upon this link:
Internal Frames in JavaFX
I have managed to add jfxtras 8 jar file to my project as well as in scene builder 2.
However, am stuck in aligning the controls on the window.
This is the fxml file code:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import jfxtras.labs.scene.control.window.*?>
<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="500.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="trials.MamaCont">
<children><Window fx:id="wini" layoutX="122.0" layoutY="105.0" prefHeight="190.0" prefWidth="313.0" title="Window" />
</children></AnchorPane>
and this is the controller class code:
package trials;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import jfxtras.labs.scene.control.window.CloseIcon;
import jfxtras.labs.scene.control.window.MinimizeIcon;
import jfxtras.labs.scene.control.window.Window;
/**
* FXML Controller class
*
* #author smoothie
*/
public class MamaCont implements Initializable {
/**
* Initializes the controller class.
*/
/*#FXML
private Button pb;
#FXML
private Label lb;*/
#FXML
private Window wini;
/*#FXML
void pressed(ActionEvent event) {
lb.setText("Gotcha!!!....");
}*/
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
wini.getLeftIcons().add(new CloseIcon(wini));
wini.getRightIcons().add(new MinimizeIcon(wini));
//wini.setVisible(false);
Button butt = new Button("Enter");
/*butt.setLayoutX(100);
butt.setLayoutY(100);*/
Label lab = new Label();
/*lab.setLayoutX(261);
lab.setLayoutY(192);*/
butt.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent t) {
lab.setText("I've been pressed!!!");
}
});
wini.getContentPane().getChildren().add(butt);
wini.getContentPane().getChildren().add(lab);
}
}
Now, does anyone know how I can be able to align the label so that its text appears below the button? When one clicks on the button the text from the label appears over the button instead of below it.
Has anyone been able to implement internal frames with javafx2 and could you please share how you have managed to put well arranged controls within the internal frames?
Lastly, does anyone know how to make a scene builder control a child of a custom control in scene builder?
I managed to add jfxtras controls to scene builder but unfortunately am not able to add javafx controls to the jfxtras window. In this case, I tried to add a javafx button to the jfxtras window via scene builder but it never worked because it was added to the anchor pane instead of the window resulting to the both the jfxtras window and javafx button being children of the anchor pane.
I managed to solve the issue after toying with the code for some time. What I did was to create the GUI using Scene Builder and linking it with the Java code using a controller.
Below are the fxml files:
tingiGUI.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="202.0" prefWidth="325.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ting.TingiCont">
<children><Button fx:id="si" layoutX="137.0" layoutY="112.0" mnemonicParsing="false" onAction="#Onyesha" text="Show" /><Label fx:id="lbi" layoutX="100.0" layoutY="70.0" prefHeight="17.0" prefWidth="124.0" />
</children></Pane>
tinGUI.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="200.0" prefWidth="325.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ting.TinCont">
<children><Button fx:id="bb" layoutX="137.0" layoutY="88.0" mnemonicParsing="false" onAction="#Boom" text="BOOM" /><Label fx:id="lbx" layoutX="84.0" layoutY="147.0" prefHeight="17.0" prefWidth="157.0" />
</children></Pane>
tingGUI.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="219.0" prefWidth="323.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ting.TingCont">
<children><Button fx:id="cmb" layoutX="127.0" layoutY="126.0" mnemonicParsing="false" onAction="#clicked" text="Click me..." /><Label fx:id="lb" layoutX="93.0" layoutY="80.0" prefHeight="17.0" prefWidth="121.0" />
</children></AnchorPane>
Below are the controllers. They extend the Main java class.
TinCont.java
package ting;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.Pane;
import jfxtras.labs.scene.control.window.CloseIcon;
import jfxtras.labs.scene.control.window.Window;
public class TinCont extends Main implements Initializable{
#FXML
private Button bb;
#FXML
private Label lbx;
/**
* Initializes the controller class.
*/
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
#FXML
void Boom(ActionEvent event) throws IOException {
lbx.setText("KAMIKAZE!!!!!!");
Pane coco = FXMLLoader.load(getClass().getResource("tingiGUI.fxml"));
Window x = new Window("TINGI WINDOW");
// set the window position to 10,10 (coordinates inside canvas)
x.setLayoutX(10);
x.setLayoutY(10);
// define the initial window size
x.setPrefSize(330, 210);
x.setResizableWindow(false);
// either to the left
x.getRightIcons().add(new CloseIcon(x));
// add some content
x.getContentPane().getChildren().add(coco);
anchor.getChildren().add(x);
}
}
TingiCont.java
package ting;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.event.ActionEvent;
/**
* Created by Udeman on 2/1/14.
*/
public class TingiCont {
#FXML
private Label lbi;
#FXML
private Button si;
#FXML
void Onyesha(ActionEvent event) {
lbi.setText("You made it...");
}
}
TingCont.java
package ting;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.Pane;
import jfxtras.labs.scene.control.window.CloseIcon;
import jfxtras.labs.scene.control.window.Window;
public class TingCont extends Main implements Initializable{
#FXML
private Label lb;
#FXML
private Button cmb;
#Override
public void initialize(URL url, ResourceBundle resourceBundle) {
}
#FXML
void clicked(ActionEvent event) throws IOException {
lb.setText("I've been clicked...");
Pane balou = FXMLLoader.load(getClass().getResource("tinGUI.fxml"));
Window w = new Window("TIN WINDOW");
// set the window position to 10,10 (coordinates inside canvas)
w.setLayoutX(10);
w.setLayoutY(10);
// define the initial window size
w.setPrefSize(330, 210);
//w.setResizableWindow(false);
// either to the left
w.getRightIcons().add(new CloseIcon(w));
// add some content
w.getContentPane().getChildren().add(balou);
anchor.getChildren().add(w);
//((Node)(event.getSource())).getScene().getWindow().hide();
}
}
And this is the Main Class.
Main.java
package ting;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import jfxtras.labs.scene.control.window.CloseIcon;
import jfxtras.labs.scene.control.window.Window;
public class Main extends Application {
public static AnchorPane anchor = new AnchorPane();
#Override
public void start(Stage primaryStage) throws Exception{
Pane sunda = FXMLLoader.load(getClass().getResource("tingGUI.fxml"));
sunda.setLayoutX(130);
sunda.setLayoutY(60);
anchor.getChildren().add(sunda);
primaryStage.setTitle("TING");
primaryStage.setScene(new Scene(anchor, 600, 400));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
To be able to properly align elements it is best to use the Scene builder. Since I was planning on using internal frames I downloaded JFXtras 8 labs jar file from the JFxtras team. JavaFx8 does not currently support internal frames.
In the Main java class, I created a static anchorpane which the other controllers could inherit because they extend the Main class.
From there, I created a JFXtras window and loaded the contents of my fxml file using an fxml loader on a pane. I added the pane to the Jfxtras window and lastly added the window to the anchorpane which was created from the Main class.
In summary, to properly align GUI elements one is best of using scene builder. In order to share the same anchorpane its best to create a static anchorpane in one class and the rest of the controllers to inherit from that class.
It is now possible to add custom UI elements to the current Scene Builder but one is limited on how to use them from the scene builder. You cannot only drag and drop the custom controls but not modify them from Scene Builder
A quick remark, jfxtras window is currently the closest way to have internal frames in JavaFx8. Oracle have not implemented internal frames in Javafx8. However, jfxtras windows for one reason or the other blow out of proportion GUI elements from the fxml file.
Well, am going to take a break from coding with Javafx8 until internal frames are introduced. I heavily rely on them. Am returning to c# for now....
I'm in the middle of a project where i'm supposed to write a login system using JavaFX 2.0.
And right now i'm trying to write a tooltip with a connection to the password field, but the tooltip NEVER shows at all.. I'm using the FXML-LoginDemo project from the 'javafx-samples-2.0.3'. And then I tried to use: http://docs.oracle.com/javafx/2.0/ui_controls/tooltip.htm#BABHCHGG example 19.1.
If you need more code to see this problem please say so.. because I don't really know where the problem is..
Here's my code so far:
package demo;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.control.Label;
import javafx.scene.control.Tooltip;
/**
* Login Controller.
*/
public class LoginController {
#FXML private TextField userId;
#FXML private PasswordField password;
#FXML private Label errorMessage;
#FXML final Tooltip tooltip = new Tooltip();
#FXML protected void processLogin(ActionEvent event) {
tooltip.setText("\nYour password must be\n at least 8 characters in length\n");
password.setTooltip(tooltip);
if(!App.getInstance().userLogging(userId.getText(), password.getText())){
errorMessage.setText("Invalid username or password: " + userId.getText());
}
//Replaces inputed password with an empty String.
password.setText("");
}
}
Define an initialize method on the controller and, in that method, set the tooltip text and associate the tooltip with the password field. If you wait until the processLogin action is called to set the Tooltip, the scene has already been displayed and the user has already tried to login.
Also, you don't need to place the #FXML annotation in front of the Tooltip unless you are defining Tooltip properties in FXML, which is probably not necessary in this case.