Getting Device Information Using react-native-device-info
Overview
Device characteristics are crucial for developers to maximize app performance and provide additional details for tracking down app errors. For instance, the amount of total and utilized RAM, the device's maker, if the device is charging while in use, etc. These details are crucial while making a business choice. Particularly now as the framework is starting to include other platforms, like Windows, you might need to access data about the user's device. Utilizing the plugin for react-native-device-info is the simplest method to achieve this. This article will contain a demonstration of how to install the module, and how to use it, and provide some sample code in this post.
How to Install React Native Device Info?
The command to install react-native-device-info is as follows:
Using npm:
or using yarn:
React Native Device Info APIs
Keep in mind that a lot of APIs are platform-specific. The "default" return values you will get for a platform if there isn't an implementation are "unknown" for strings, -1 for numbers, and false for booleans. Objects ([]) and Arrays ([]) will both be empty.
The majority of APIs return a Promise, but they also provide an equivalent Sync API that runs synchronously. To prevent async calls during the initial phases of the app launch, you could want to run isCameraPresentSync() during the app's bootstrap.
Remarks on getUserAgentSync:
GetUserAgentSync is only supported on Android, however, the asynchronous function getUserAgent is accessible on both platforms.
React Native Device Info Usage
ES6+ destructured imports:
React Native Device Info Implementation
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Using react-native-device-info, find the device's battery level. The getBatteryLevel function allows you to determine the user's device's current battery level:
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Using react-native-device-info, check to see if the battery is charged. Use the isBatteryCharging function to determine whether the device's battery is being charged at the moment:
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Using react-native-device-info, find a device's power state. With the help of the getPowerState function, you can also determine a device's current power status, which includes its battery level, whether it's plugged in or not, and if it's in low power mode.
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Using react-native-device-info, determine if the current device is an actual one or an emulator.
Use the isEmulator method to determine if your program is presently running on an actual device or an emulator:
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Using react-native-device-info, you can find out when an app was initially installed.
Use the getFirstInstallTime method to determine when an app was originally installed on Android or Windows:
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Using react-native-device-info, determine if a device is in portrait or landscape mode.
Depending on whether the smartphone is in portrait or landscape mode, you might occasionally need to alter the app layout. Use the isLandscape function to verify this:
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Utilise react-native-device-info to determine if a device has location functionality turned on. The isLocationEnabled function allows you to determine if the user has enabled location services on their device. Please be aware that this just determines if the user has provided permission for your app to access location services, not whether location services have been enabled for the user's entire device. If you wish to access location services, you must separately ask the user for their consent.
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Using react-native-device-info, to find the device font size. The ratio between the basic font size and the current system font is known as the font scale. For instance, the font scale would be 2.0 if the base size was 10px and the system font was set to 20px.
Why is this crucial? This informs you whether the user's device's accessibility settings have been modified. To respect this configuration, we might also need to modify our opinions to account for the higher font size.
The getFontScale method is used to obtain this data:
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react-native-device-info allows you to find out when an app was last updated.
Use the getLastUpdateTime method on Android to determine when an app was updated:
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Using react-native-device-inf, determine if the smartphone has a camera. To determine if an Android or Windows device has a camera available, use the isCameraPresent method. Note that this only indicates whether the device has a camera accessible; it does not provide you authorization to use the camera; you must get authorization before using the device's camera.
FAQs
Q. What to do if I get too many warnings (battery state, etc)?
A. In some circumstances, like as on tvOS or the iOS simulator, some APIs (like getBatteryState) will issue warnings. Even though this won't be seen in the finished result, it could be annoying during development. The warnings are helpful since it might be unexpected for certain devices to provide no state, which can cause problems with github support. The purpose of the warnings is to inform you as a developer. If the warnings bother you, you might try adding the following to your code to silence them:
Q. How to use getUniqueId?
A. If used without user agreement or for prohibited reasons, this identification is regarded as sensitive information in certain app stores (such as Huawei or Google Play) and may result in your app being withdrawn or rejected. For further details, consult the shop policies (see the comments below).
gets the special ID for the gadget. It is presently the same as getAndroidId() in this module for Android. It makes use of the DeviceUID unique ID in iOS. It operates on Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation.id on Windows.
Q. What are some common use cases for react-native-device-info?
A. Some common use cases for react-native-device-info include:
- Retrieving the device model and manufacturer.
- Getting the operating system name and version.
- Accessing unique identifiers such as the device ID or serial number.
- Determining the device's screen dimensions and pixel density.
- Checking if the device is running in emulator/simulator mode.
Conclusion
- The command to install react-native-device-info is as follows npm install --save react-native-device-info.
- The majority of APIs in this package return a Promise, but they also provide an equivalent Sync API that runs synchronously.
- GetUserAgentSync is only supported on Android, however the asynchronous function getUserAgent is accessible on both platforms.
- The getBatteryLevel function allows you to determine the user's device's current battery level.
- Use the isBatteryCharging function to determine whether the device's battery is being charged at the moment.
- With the help of the getPowerState function, you can also determine a device's current power status, which includes its battery level.
- Use the isEmulator method to determine if your program is presently running on an actual device or an emulator.
- Use the getFirstInstallTime method to determine when an app was originally installed on Android or Windows