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public
final
class
CharSequenceTransformation
extends Object
implements
Transformation,
Parcelable
java.lang.Object | |
↳ | android.service.autofill.CharSequenceTransformation |
Replaces a TextView
child of a CustomDescription
with the contents of one or
more regular expressions (regexs).
When it contains more than one field, the fields that match their regex are added to the overall transformation result.
For example, a transformation to mask a credit card number contained in just one field would be:
new CharSequenceTransformation .Builder(ccNumberId, Pattern.compile("^.*(\\d\\d\\d\\d)$"), "...$1") .build();
But a transformation that generates a Exp: MM / YYYY
credit expiration date from two
fields (month and year) would be:
new CharSequenceTransformation .Builder(ccExpMonthId, Pattern.compile("^(\\d\\d)$"), "Exp: $1") .addField(ccExpYearId, Pattern.compile("^(\\d\\d\\d\\d)$"), " / $1");
Nested classes | |
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class |
CharSequenceTransformation.Builder
Builder for |
Inherited constants |
---|
Fields | |
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public
static
final
Creator<CharSequenceTransformation> |
CREATOR
|
Public methods | |
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int
|
describeContents()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
String
|
toString()
Returns a string representation of the object. |
void
|
writeToParcel(Parcel parcel, int flags)
Flatten this object in to a Parcel. |
Inherited methods | |
---|---|
public int describeContents ()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation. For example, if the object will
include a file descriptor in the output of writeToParcel(android.os.Parcel, int)
,
the return value of this method must include the
CONTENTS_FILE_DESCRIPTOR
bit.
Returns | |
---|---|
int |
a bitmask indicating the set of special object types marshaled
by this Parcelable object instance.
Value is either 0 or CONTENTS_FILE_DESCRIPTOR |
public String toString ()
Returns a string representation of the object. In general, the
toString
method returns a string that
"textually represents" this object. The result should
be a concise but informative representation that is easy for a
person to read.
It is recommended that all subclasses override this method.
The toString
method for class Object
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `@
', and
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
Returns | |
---|---|
String |
a string representation of the object. |
public void writeToParcel (Parcel parcel, int flags)
Flatten this object in to a Parcel.
Parameters | |
---|---|
parcel |
Parcel : The Parcel in which the object should be written. |
flags |
int : Additional flags about how the object should be written.
May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE .
Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |