This will allow you to persist the app's state through reloads. You may even go a step further and keep your app running as new versions of your files are injected into the JavaScript bundle automatically by enabling Hot Reloading from the Developer Menu.
Automatic reloading can be enabled by selecting "Enable Live Reload" from the Developer Menu. You can speed up your development times by having your app reload automatically any time your code changes. You can also press ⌘R in the iOS Simulator, or tap R twice on Android emulators. To do so, select "Reload" from the Developer Menu. Instead of recompiling your app every time you make a change, you can reload your app's JavaScript code instantly. The Developer Menu is disabled in release (production) builds.
Alternatively for Android, you can run the command adb shell input keyevent 82 to open the dev menu (82 being the Menu key code). You can also use the ⌘D keyboard shortcut when your app is running in the iOS Simulator, or ⌘M when running in an Android emulator. You can access the developer menu by shaking your device or by selecting "Shake Gesture" inside the Hardware menu in the iOS Simulator. To enable them, open the Hardware menu, select Keyboard, and make sure that "Connect Hardware Keyboard" is checked. React Native supports a few keyboard shortcuts in the iOS Simulator.
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