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ImageTransformation
public
final
class
ImageTransformation
extends Object
implements
Transformation,
Parcelable
| java.lang.Object | |
| ↳ | android.service.autofill.ImageTransformation |
Replaces the content of a child ImageView of a
RemoteViews with the first image that matches a regular expression
(regex).
Typically used to display credit card logos. Example:
new ImageTransformation.Builder(ccNumberId, Pattern.compile("^4815.*$"),
R.drawable.ic_credit_card_logo1, "Brand 1")
.addOption(Pattern.compile("^1623.*$"), R.drawable.ic_credit_card_logo2, "Brand 2")
.addOption(Pattern.compile("^42.*$"), R.drawable.ic_credit_card_logo3, "Brand 3")
.build();
There is no imposed limit in the number of options, but keep in mind that regexs are expensive to evaluate, so use the minimum number of regexs and add the most common first (for example, if this is a tranformation for a credit card logo and the most common credit card issuers are banks X and Y, add the regexes that resolves these 2 banks first).
Summary
Nested classes | |
|---|---|
class |
ImageTransformation.Builder
Builder for |
Inherited constants |
|---|
Fields | |
|---|---|
public
static
final
Creator<ImageTransformation> |
CREATOR
|
Public methods | |
|---|---|
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 | |
|---|---|
Fields
Public methods
describeContents
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 |
toString
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. |
writeToParcel
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 |