Chapter 6. Application Events and Storage
In the previous chapter, we learned how to communicate with the backend database using a Cordova/PhoneGap app. However, even in an increasingly connected world, mobile devices aren't always connected to the network. As such, our app needs to be sensitive to changes in the device's network connectivity. It also needs to be sensitive to the type of network (for example, cellular versus wired), not to mention being sensitive to the device the app itself is running on.
Given all this, in this chapter, we'll cover the following topics:
- Determining network connectivity
- Getting the current network type
- Detecting changes in connectivity
- Handling connectivity issues
- Handling changes in the application state
- Responding to application-level events
- Storing local data using SQLite
- Storing data in the iOS Keychain
