#Android open any file android#
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.
#Android open any file 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. The native Java file access APIs (provided by Java and wrapped by Xamarin.Android) – Java provides its own APIs for reading and writing files.NET APIs provide the best cross-platform compatibility and as such the focus of this guide will be on these APIs. NET APIs (provided by Mono and wrapped by Xamarin.Android) – These includes the file system helpers provided by Xamarin.Essentials. There are two sets of APIs that a Xamarin.Android application may use for file access: Regardless of the partition the APIs for reading, writing, or creating files is the same.
It is possible that certain devices may have multiple partitions that are considered to be external storage. An Android device will always provide partition for internal storage and external storage. These groupings are conceptual only, and don't necessarily refer to a single partition or directory on the device. On some devices, external storage may be removable (such as an SD card). External Storage – this is a partition for the storage of files that is accessible by all apps, the user, and possibly other devices.Internal Storage – this is a portion of the file system that can be accessed only by the application or the operating system.Android groups the filesystem into two different types of storage: Android (which is based on Linux) supports this by providing space for file storage.
#Android open any file for android#
A common requirement for Android apps is to manipulate files – saving pictures, downloading documents, or exporting data to share with other programs.
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