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Advanced Download Manager is a powerful Android app. It lets you download files of any type and up to 3 files at once to your Android device. The app automatically recognizes downloadable links. AlarmClock; BlockedNumberContract; BlockedNumberContract.BlockedNumbers; Browser; CalendarContract; CalendarContract.Attendees; CalendarContract.CalendarAlerts. Using external storage is great for files that you want to share with other apps or allow the user to access with a computer. External storage is usually available through removable devices, such as an SD card. Android represents these devices using a path, such as /sdcard.
Home >Android Backup > How to Transfer Files from Android to External Hard Drive Effectively?
Summary: This article is written to teach you an easy but effective way to transfer files from Android to external hard drive. For the users who are eager to move Android files to external hard drive, it can be a helpful tutorial.
Due to the portability and convenience, people save more and more files like music, photos, movies, SMS, contacts, etc. in their Android phones. However, the storage space of the device is limited so you need to backup data on Android. How about sending them to the computer? It is good but the PC may be broken or infected by virus so it is not safe also. Then transferring files from Android to external hard drive seems to be a better choice. But how to achieve this goal? Just see here! You will know an easy-learning method as long as you read the article and follow the steps below.
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User Guide on How to Sync Files from Android to External Hard Drive
First of all, you need to prepare some necessary tools: Avast for mac iphone connect to desktop.
- A suitable USB cable;
- An external hard drive;
- A computer;
- A professional Android data transferring program.
After getting these tools, you can start to perform the moving process. The first thing you need to do is to sync the Android files to PC. Here we would like to recommend you an amazing tool named Android Mobile Manager that allows you to transfer the files from Android to computer in two ways- one click to backup all kinds of files like photos, music, videos, text messages, contacts to PC or copy certain data to computer. After that, you can send the data from PC to the external hard drive for a lifetime reservation.
Now let's start to move Android files to external hard drive!
Step 1. Download and Install the Program
Daisydisk mac key crack. First, you need to download the software by clicking the icon below, the program was designed to suit for both Windows Version and Mac Version. Then you can go with the instructions to properly install it.
Step 2. Make Your Device Be Recognized
Link your Android phone to the computer by using USB cable and run the program. You will see an interface popping up like the picture shows. Your device will be detected after you enable USB debugging and install USB driver on the computer.
Step 3. Move the Android Files to Computer
Once the Android phone is detected, you can begin to transfer the files. Here you are free to export the files selectively or altogether.
1. Export Special Files to PC
After the procedure finishes scanning your device, a window will pop up, and you can see different categories in the left column. Click the folder you want to backup, which will bring up the detailed contents in the right panel. Just preview the files and mark the ones you want to save. After that, you can click the 'Export' button to sync and save your files on computer.
2. One Click to Backup Android Files
Select 'Super Toolkit' option from the top menu and then choose 'Backup'. After that, you will see several categories are listed in a window. Just tick off all the folders and select a location to save the files. At last, you should hit on 'Back Up' button to transfer the Android files to computer.
Step 4. Sync Android Files from PC to External Hard Drive
![External Download Manager For Android External Download Manager For Android](/uploads/1/3/3/2/133296221/399105713.jpg)
The final step is to transfer the exported files to external hard drive. Just disconnect your Android phone and then connect an external hard drive to the PC by using the USB cable. When the external hard drive is recognized by the computer, an icon will appear on the desktop. You need to double click it to open the external hard drive. Next, you can copy the data transferred from Android phone and paste them in the external hard drive.
That's it! Now all your wanted files will be saved in the external hard drive and you do not need to worry about the data loss anymore. If you really wish to backup your Android files and do not want to lose them, just take action to protect them.
Related Article: Iphone 6 notification tone download for android.
-->External storage refers to file storage that is not on internal storage and not exclusively accessible to the app that is responsible for the file. 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.
Historically speaking, external storage referred to a disk partition on removable media such as an SD card (was also known as portable storage). This distinction is no longer as relevant as Android devices have evolved and many Android devices no longer support removable storage. Instead some devices will allocate some of their internal non-volatile memory which Android to perform the same function removable media. This is known as emulated storage and is still considered to be external storage. Alternately, some Android devices may have multiple external storage partitions. For example, an Android tablet (in addition to its internal storage) might have emulated storage and one or more slots for an SD card. All of these partitions are treated by Android as external storage.
On devices that have multiple users, each user will have a dedicated directory on the primary external storage partition for their external storage. Apps running as one user will not have access to files from another user on the device. The files for all users are still world-readable and world-writeable; however, Android will sandbox each user profile fromthe others.
Reading and writing to files is almost identical in Xamarin.Android as it is to any other .NET application. The Xamarin.Android app determines the path to the file that will be manipulated, then uses standard .NET idioms for file access. 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. Instead, Xamarin.Android exposes the native Android APIs that will help with determining the path to files on internal and external storage.
This guide will discuss the concepts and APIs in Android that are specific to external storage.
Public and private files on external storage
There are two different types of files that an app may keep on external storage:
- Private files – Private files are files that are specific to your application (but are still world-readable and world-writable). Android expects that private files are stored in a specific directory on external storage. Even though the files are called 'private', they are still visible and accessible by other apps on the device, they are not afforded any special protection by Android. Bollywood full movie free download.
- Public files – These are files that are not considered to be specific to the application and are meant to be freely shared.
The differences between these files is primarily conceptual. Private files are private in the sense that they are considered to be a part of the application, while public files are any other files that exist on external storage. Android provides two different APIs for resolving the paths to private and public files, but otherwise the same .NET APIs are used to read and write to these files. These are the same APIs that are discussed in the section on reading and writing.
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Private external files
Private external files are considered to be specific to an application (similar to internal files) but are being kept on external storage for any number of reasons (such as being too large for internal storage). Similar to internal files, these files will be deleted when the app is uninstalled by the user.
The primary location for private external files is found by calling the method
Android.Content.Context.GetExternalFilesDir(string type)
. This method will return a Java.IO.File
object that represents the private external storage directory for the app. Passing null
to this method will return the path to the user's storage directory for the application. As an example, for an application with the package name com.companyname.app
, the 'root' directory of the private external files would be:This document will refer to the storage directory for private files on external storage as PRIVATE_EXTERNAL_STORAGE.
The parameter for
GetExternalFilesDir()
is a string that specifies an application directory. This is a directory intended to provide a standard location for a logical organization of files. The string values are available through constants on the Android.OS.Environment
class:Android.OS.Environment | Directory |
---|---|
DirectoryAlarms | PRIVATE_EXTERNAL_STORAGE/Alarms |
DirectoryDcim | PRIVATE_EXTERNAL_STORAGE/DCIM |
DirectoryDownloads | PRIVATE_EXTERNAL_STORAGE/Download |
DirectoryDocuments | PRIVATE_EXTERNAL_STORAGE/Documents |
DirectoryMovies | PRIVATE_EXTERNAL_STORAGE/Movies |
DirectoryMusic | PRIVATE_EXTERNAL_STORAGE/Music |
DirectoryNotifications | PRIVATE_EXTERNAL_STORAGE/Notifications |
DirectoryPodcasts | PRIVATE_EXTERNAL_STORAGE/Podcasts |
DirectoryRingtones | PRIVATE_EXTERNAL_STORAGE/Ringtones |
DirectoryPictures | PRIVATE_EXTERNAL_STORAGE/Pictures |
For devices that have multiple external storage partitions, each partition will have a directory that is intended for private files. The method
Android.Content.Context.GetExternalFilesDirs(string type)
will return an array of Java.IO.Files
. Each object will represent a private application-specific directory on all shared/external storage devices where the application can place the files it owns.Important
The exact path to the private external storage directory can vary from device to device and between versions of Android. Because of this, apps must not hard code the path to this directory, and instead use the Xamarin.Android APIs, such as
Android.Content.Context.GetExternalFilesDir()
.Public external files
Public files are files that exist on external storage that are not stored in the directory that Android allocates for private files. Public files will not be deleted when the app is uninstalled. Android apps must be granted permission before they can read or write any public files. It is possible for public files to exist anywhere on external storage, but by convention Android expects public files to exist in the directory identified by the property
Android.OS.Environment.ExternalStorageDirectory
. This property will return a Java.IO.File
object that represents the primary external storage directory. As an example, Android.OS.Environment.ExternalStorageDirectory
may refer to the following directory:This document will refer to the storage directory for public files on external storage as PUBLIC_EXTERNAL_STORAGE.
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Android also supports the concept of application directories on PUBLIC_EXTERNAL_STORAGE. These directories are exactly the same as the application directories for
PRIVATE_EXTERNAL_STORAGE
https://renewleaders140.weebly.com/blog/download-xbmc-for-android-40-4. and are described in the table in the previous section. The method Android.OS.Environment.GetExternalStoragePublicDirectory(string directoryType)
will return a Java.IO.File
object that correspond to a public application directory. The directoryType
parameter is a mandatory parameter and cannot be null
.For example, calling
Environment.GetExternalStoragePublicDirectory(Environment.DirectoryDocuments).AbsolutePath
will return a string which will resemble:Important
Soundtoys 64 bit mac crack. The exact path to the public external storage directory can vary from device to device and between versions of Android. Because of this, apps must not hard code the path to this directory, and instead use the Xamarin.Android APIs, such as
Android.OS.Environment.ExternalStorageDirectory
.Working with external storage
Once a Xamarin.Android app has obtained the full path to a file, it should utilize any of the standard .NET APIs for creating, reading, writing, or deleting files. This maximizes the amount of cross platform compatible code for an app. However, before attempting to access a file a Xamarin.Android app must ensure that is it possible to access that file.
- Verify external storage – Depending on the nature of the external storage, it is possible that it might not be mounted and usable by the app. All apps should check the state of the external storage before attempting to use it.
- Perform a runtime permission check – An Android app must request permission from the user in order to access external storage. This means that a run time permission request should be performed prior to any file access. The guide Permissions In Xamarin.Android contains more details on Android permissions.
Each of these two tasks will be discussed below.
Verifying that external storage is available
The first step before writing to external storage is to check that it is readable or writeable. The
Android.OS.Environment.ExternalStorageState
property holds a string that identifies the state of the external storage. This property will return a string that represents the state. This table is a list of the ExternalStorageState
values that might be returned by Environment.ExternalStorageState
:ExternalStorageState | Description |
---|---|
MediaBadRemoval | The media was abruptly removed without being properly unmounted. |
MediaChecking | The media is present but undergoing a disk check. |
MediaEjecting | Media is in the process of being unmounted and ejected. |
MediaMounted | Media is mounted and can be read or written to. |
MediaMountedReadOnly | Media is mounted but can only be read from. |
MediaNofs | Media is present but does not contain a filesystem suitable for Android. |
MediaRemoved | There is no media present. |
MediaShared | Media is present, but is not mounted. It is being shared via USB with another device. |
MediaUnknown | The state of the media is unrecognized by Android. |
MediaUnmountable | The media is present but cannot be mounted by Android. |
MediaUnmounted | The media is present but is not mounted. |
Most Android apps will only need to check if external storage is mounted. The following code snippet shows how to verify that external storage is mounted for read-only access or read-write access:
External storage permissions
Android considers accessing external storage to be a dangerous permission, which typically requires the user to grant their permission to access the resource. The user may revoke this permission at any time. This means that a run time permission request should be performed prior to any file access. Apps are automatically granted permissions to read and write their own private files. It is possible for apps to read and write the private files that belong to other apps after being granted permission by the user.
All Android apps must declare one of the two permissions for external storage in the AndroidManifest.xml . To identify the permissions, one of the following two
uses-permission
elements must be add to AndroidManifest.xml:Note
If the user grants
WRITE_EXTERNAL_STORAGE
, then READ_EXTERNAL_STORAGE
is also implicitly granted. It is not necessary to request both permissions in AndroidManifest.xml.The permissions may also be added using the Android Manifest tab of the solution properties:
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The permissions may also be added using the Android Manifest tab of the solution properties pad:
Generally speaking, all dangerous permissions must be approved by the user. The permissions for external storage are an anomaly in that there are exceptions to this rule, depending on the version of Android that the app is running:
For more information on performing runtime permission requests, please consult the guide Permissions In Xamarin.Android. The monodroid-sampleLocalFiles also demonstrates one way of performing runtime permission checks.
Granting and revoking permissions with ADB
In the course of developing an Android app, it may be necessary to grant and revoke permissions to test the various work flows involved with runtime permission checks. It is possible to do this at the command prompt using ADB. The following command line snippets demonstrate how to grant or revoke permissions using ADB for an Android app whose package name is com.companyname.app:
Deleting files
Any of the standard C# APIs can be used to delete a file from external storage, such as
System.IO.File.Delete
. It is also possible to use the Java APIs at the expense of code portability. For example: