For example, a configuration file is best suited for a internal storage as it has no importance except to the app that creates it. This separation is invisible to apps as long as they do not hardcode paths to files on internal or external storage.Īs a rule of thumb, Xamarin.Android apps should prefer saving their files on internal storage when it is reasonable, and rely on external storage when files need to be shared with other apps, are very large, or should be retained even if the app is uninstalled. This directory is inaccessible to other users on the device. However, external storage is not always guaranteed to be present on a device and may require special permission from the user to access it.įor devices that support multiple users, Android will provide each user their own directory on both internal and external storage. The advantage of external storage is that it typically has much more space for files than internal storage. The primary purpose of external storage is to provide a place to put files that are meant to be shared between apps or that are too large to fit on the internal storage. The space available on internal storage maybe limited.Įxternal storage refers to file storage that is not internal storage and not exclusively accessible to an app.Files will be deleted when the app is uninstalled.Internal storage has the following disadvantages: On Android 6.0 or higher, files on internal storage may be automatically backed up by Google using the Auto Backup feature in Android 6.0. Internal storage is best suited for files that are only accessible to the app and that will not be shared with other apps or will have very little value once the app is uninstalled. When the app is uninstalled, all the files that are kept on internal storage in that directory will also be deleted. Android will allocate a directory in the internal storage partition for each app. This space is not accessible except by the operating system or apps. Internal storage refers to the non-volatile memory that Android allocates to the operating system, APKs, and for individual apps. This similarity may be confusing for developers who are not familiar with Android as it is not clear when an app should use internal storage vs external storage. Internal vs external storageĬonceptually, internal storage and external storage are very similar – they are both places at which a Xamarin.Android app may save files. This will be discussed in the next section. NET APIs for reading and writing files exposes the native Android APIs that will help with determining the path to files on internal and external storage.īefore discussing the APIs involved with file access, it is important to understand some of the details surrounding internal and external storage. Instead, use the Xamarin.Android APIs to determine the path to files. Opensong windows vs android file type code#Because the actual paths to internal and external storage may vary from device to device or from Android version to Android version, it is not recommended to hard code the path to the files. The Xamarin.Android app determines the path to the file that will be manipulated, then uses standard. Reading and writing to files is almost identical in Xamarin.Android as it is to any other. NET APIs, but are specific to Android and are not suitable for apps that are intended to be cross-platform. These are a completely acceptable alternative to the.
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