android.util

Provides common utility methods such as date/time manipulation, base64 encoders and decoders, string and number conversion methods, and XML utilities.

Interfaces

AttributeSet	A collection of attributes, as found associated with a tag in an XML document.
Printer	Simple interface for printing text, allowing redirection to various targets.

Classes

Base64	Utilities for encoding and decoding the Base64 representation of binary data.
Base64InputStream	An InputStream that does Base64 decoding on the data read through it.
Base64OutputStream	An OutputStream that does Base64 encoding on the data written to it, writing the resulting data to another OutputStream.
Config	This class is deprecated. This class is not useful, it just returns the same value for all constants, and has always done this. Do not use it.
DebugUtils	Various utilities for debugging and logging.
DisplayMetrics	A structure describing general information about a display, such as its size, density, and font scaling.
EventLog	Access to the system diagnostic event record.
EventLog.Event	A previously logged event read from the logs.
EventLogTags	This class is deprecated. This class is no longer functional. Use `EventLog` instead.
EventLogTags.Description
FloatMath	Math routines similar to those found in `Math`.
JsonReader	Reads a JSON (RFC 4627) encoded value as a stream of tokens.
JsonWriter	Writes a JSON (RFC 4627) encoded value to a stream, one token at a time.
Log	API for sending log output.
LogPrinter	Implementation of a `Printer` that sends its output to the system log.
LruCache<K, V>	A cache that holds strong references to a limited number of values.
MonthDisplayHelper	Helps answer common questions that come up when displaying a month in a 6 row calendar grid format.
Pair<F, S>	Container to ease passing around a tuple of two objects.
Patterns	Commonly used regular expression patterns.
PrintStreamPrinter	Implementation of a `Printer` that sends its output to a `PrintStream`.
PrintWriterPrinter	Implementation of a `Printer` that sends its output to a `PrintWriter`.
Property<T, V>	A property is an abstraction that can be used to represent a mutable value that is held in a host object.
SparseArray<E>	SparseArrays map integers to Objects.
SparseBooleanArray	SparseBooleanArrays map integers to booleans.
SparseIntArray	SparseIntArrays map integers to integers.
StateSet	State sets are arrays of positive ints where each element represents the state of a `View` (e.g.
StringBuilderPrinter	Implementation of a `Printer` that sends its output to a `StringBuilder`.
TimeUtils	A class containing utility methods related to time zones.
TimingLogger	A utility class to help log timings splits throughout a method call.
TypedValue	Container for a dynamically typed data value.
Xml	XML utility methods.

Enums

JsonToken	A structure, name or value type in a JSON-encoded string.
Xml.Encoding	Supported character encodings.

Exceptions

AndroidException	Base class for all checked exceptions thrown by the Android frameworks.
AndroidRuntimeException	Base class for all unchecked exceptions thrown by the Android frameworks.
Base64DataException	This exception is thrown by `Base64InputStream` or `Base64OutputStream` when an error is detected in the data being decoded.
MalformedJsonException	Thrown when a reader encounters malformed JSON.
NoSuchPropertyException	Thrown when code requests a `Property` on a class that does not expose the appropriate method or field.
TimeFormatException