AppDataFileSource Class
Definition
Important
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A source representing a file within the calling application's private app data directory.
[Android.Runtime.Register("android/os/storage/operations/sources/AppDataFileSource", ApiSince=37, DoNotGenerateAcw=true)]
public sealed class AppDataFileSource : Android.OS.Storage.Operations.Sources.OperationSource[<Android.Runtime.Register("android/os/storage/operations/sources/AppDataFileSource", ApiSince=37, DoNotGenerateAcw=true)>]
type AppDataFileSource = class
inherit OperationSource- Inheritance
- Attributes
Remarks
A source representing a file within the calling application's private app data directory.
This source is restricted to files located inside the application's internal data directory (as returned by Context.getDataDir()). Operation Rejection
To ensure system security and integrity, operations using an AppDataFileSource will be rejected with FileOperationResult.ERROR_UNSUPPORTED_SOURCE or FileOperationResult.ERROR_INVALID_REQUEST if: The provided path is not absolute; The path contains path traversal elements (e.g., "..") or redundant segments; The path contains unsafe control characters (e.g., null, newline); The file is outside the application's internal data directory (CE or DE storage). Locations such as external storage or system directories are strictly prohibited.
// Obtain the application's data directory using Context
Context context = getApplicationContext();
File myDataFile = new File(context.getDataDir(), "subfolder/my_data.txt");
// Construct the AppDataFileSource with the File object
AppDataFileSource source = new AppDataFileSource(myDataFile);
// The source can now be used in storage operations
Android reference for android.os.storage.operations.sources.AppDataFileSource.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| Name | Description |
|---|---|
| AppDataFileSource(File) |
Creates a new source for the specified file. |
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| File |
Returns the file associated with this source. |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniManagedPeerState | (Inherited from JavaObject) |
| JniPeerMembers | |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| ThresholdClass | (Inherited from OperationSource) |
| ThresholdType | (Inherited from OperationSource) |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (Inherited from Object) |
| DisposeUnlessReferenced() | (Inherited from JavaObject) |
| Equals(Object) | (Inherited from JavaObject) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Obsolete.
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetPeerReference(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToString() |
Returns a string representation of this source for debugging. |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| Name | Description |
|---|---|
| IJavaPeerable.Disposed() | (Inherited from JavaObject) |
| IJavaPeerable.Finalized() | (Inherited from JavaObject) |
| IJavaPeerable.JniObjectReferenceControlBlock | (Inherited from JavaObject) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from JavaObject) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from JavaObject) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from JavaObject) |
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |