AbstractPreferences.KeysSpi Method
Definition
Important
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Returns all of the keys that have an associated value in this preference node.
[Android.Runtime.Register("keysSpi", "()[Ljava/lang/String;", "GetKeysSpiHandler")]
protected abstract string[]? KeysSpi ();[<Android.Runtime.Register("keysSpi", "()[Ljava/lang/String;", "GetKeysSpiHandler")>]
abstract member KeysSpi : unit -> string[]Returns
an array of the keys that have an associated value in this preference node.
- Attributes
Exceptions
if the backing store is unavailable or causes an operation failure.
Remarks
Returns all of the keys that have an associated value in this preference node. (The returned array will be of size zero if this node has no preferences.) It is guaranteed that this node has not been removed.
This method is invoked with the lock on this node held.
If this node throws a BackingStoreException, the exception will propagate out beyond the enclosing #keys() invocation.
Java documentation for java.util.prefs.AbstractPreferences.keysSpi().
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