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Design Patterns for Tablets and SmartphonesMichael Galpin
This is a talk I gave at AnDevCon. It talks about ways to take advantage of features introduced in Android 3.0 to create more modular and better looking apps.
This is an introductory session to Android Wear. We will cover Design Principles and how to implement them. In particular, I will show how to enhance your existing notifications to make them shine on Android Wear, how to implement Android Wear apps that make use of the new possibilities Android Wear gives you as a developer such as voice input and GPS. Finally, we will take a look at implementing watch faces.
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Presentation on getting started with the Swiz framework for Adobe Flex. It concentrates on solving problems around IoC, dependency injection, event handling and interacting with external services.
package buttongui;
import static com.sun.deploy.config.JREInfo.clear;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.FlowPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class ButtonGUI extends Application implements EventHandler {
@Override
public void start(Stage primaryStage) {
btn.setText(\"Find\");
btn.setOnAction(this);
btn1.setText(\"Clear\");
btn1.setOnAction(this);
btn2.setText(\"Exit\");
btn2.setOnAction(this);
FlowPane flow = new FlowPane();
flow.getChildren().addAll(btn,btn1,btn2);
BorderPane border = new BorderPane();
border.setCenter(flow);
Scene scene = new Scene(border, 300,250);
primaryStage.setTitle(\"ButtonGUI\");
primaryStage.setScene(scene);
primaryStage.show();
}
@Override
public void handle(ActionEvent event) {
String tx =\"Hello world\";
System.out.println(tx);
if(btn2 == event.getSource()){
System.out.println(\"Exit Pressed\");
System.exit(0);
}
}
public static void main(String[] args)throws Exception {
launch(args);
}
}
Simple Exit & Clear Events) Add the Exit Event to your ButtonsGUI. Make it so that when the
user clicks on the Exit button, the application ends. Add the Clear Event to your ButtonsGUI.
Make it so that when the user clicks on the Clear button, the Text on all the Buttons is cleared.
please solve the clear button so that when the user clicks on the Clear button, the Text on all the
Buttons is cleared. thanks
Solution
Follow below steps to Add the Exit Event to your Buttons GUI:
1. Right Click on the Exit button and choose Events --> Action --> ActionPerformed.
2. The IDE will automatically add an ActionListener to the Exit button and generate a handler
method for handling the listener\'s actionPerformed method.
3. The IDE will open up the Source Code window and scroll to where you implement the action
you want the button to do when the button is pressed.
4. Add code for what we want the Exit Button to do. You will have to type System.exit(0);
5. Your final Exit button code should look like this:
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt)
{
System.exit(0);
}
Follow below steps to Add the Clear Event to your Buttons GUI:
In below example the text in two of our jTextFields will clear, it is overwriting the existing Text
with a blank.
1. Click on the Design tab at the top of your work area to go back to the Form Design
2. Right Click on the Clear button (jButton1). From the pop-up menu select Events --> Action --
> ActionPerformed.
3. Your final source code will be:
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)
{
jTextField1.setText(\"\");
jTextField2.setText(\"\");
}
Note: You can add as many jTextField depending upon number of buttons y.
56. extension CGRect
var width: CGFloat { get }
var height: CGFloat { get }
var minX: CGFloat { get }
var midX: CGFloat { get }
var maxX: CGFloat { get }
var minY: CGFloat { get }
var midY: CGFloat { get }
var maxY: CGFloat { get }
在superView上的座標位置