Distributed Calculator

Introduction

This sample implements a simple calculator app using JS distributed features. The calculator can perform simple numerical calculations and start a remote calculator Feature Ability (FA) to perform collaborative calculation.

• Remote startup: StartAbility is used to start a remote app.
• Collaborative calculation: The DistributedDataKit distributed data framework is used to implement data synchronization between remote applications.

Usage

• Touch the icon on the desktop to start the calculator.
• Touch the button in the upper right corner of the app, or swipe up, down, left, or right on the screen to display the device selection box.
• In the device selection box, touch the name of a peer device to start the remote app.
• After the remote app is started, perform operations on the app at either end. Data can be synchronized between the two apps in real time.
• In the device selection box, touch the local device to close the remote app.

Constraints

• This calculator implements only simple addition, subtraction, multiplication, and division operations. You can implement more complex arithmetic operations on the calc page based on the current framework.
• Distributed computing can be implemented only with distributed networking.