Provides common utility methods such as date/time manipulation, base64 encoders
and decoders, string and number conversion methods, and XML utilities.
| ArrayMap<K, V> |
ArrayMap is a generic key->value mapping data structure that is
designed to be more memory efficient than a traditional HashMap.
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| ArraySet<E> |
ArraySet is a generic set data structure that is designed to be more memory efficient than a
traditional HashSet.
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| AtomicFile |
Helper class for performing atomic operations on a file by writing to a new file and renaming it
into the place of the original file after the write has successfully completed.
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| Base64 |
Utilities for encoding and decoding the Base64 representation of
binary data.
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| Base64InputStream |
An InputStream that does Base64 decoding on the data read through
it.
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| Base64OutputStream |
An OutputStream that does Base64 encoding on the data written to
it, writing the resulting data to another OutputStream.
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| CloseGuard |
CloseGuard is a mechanism for flagging implicit finalizer cleanup of
resources that should have been cleaned up by explicit close
methods (aka "explicit termination methods" in Effective Java).
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| 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.
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| DebugUtils |
Various utilities for debugging and logging.
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| DisplayMetrics |
A structure describing general information about a display, such as its
size, density, and font scaling.
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| EventLog |
Access to the system diagnostic event record.
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| EventLog.Event |
A previously logged event read from the logs.
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| EventLogTags |
This class is deprecated.
This class is no longer functional.
Use EventLog instead.
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| EventLogTags.Description |
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| FloatMath |
This class is deprecated.
Use Math instead.
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| FloatProperty<T> |
An implementation of Property to be used specifically with fields of type
float.
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| Half |
The Half class is a wrapper and a utility class to manipulate half-precision 16-bit
IEEE 754
floating point data types (also called fp16 or binary16).
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| IntProperty<T> |
An implementation of Property to be used specifically with fields of type
int.
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| JsonReader |
Reads a JSON (RFC 4627)
encoded value as a stream of tokens.
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| JsonWriter |
Writes a JSON (RFC 4627)
encoded value to a stream, one token at a time.
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| LayoutDirection |
A class for defining layout directions.
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| Log |
API for sending log output.
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| LogPrinter |
Implementation of a Printer that sends its output
to the system log.
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| LongSparseArray<E> |
SparseArray mapping longs to Objects.
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| LruCache<K, V> |
A cache that holds strong references to a limited number of values.
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| MonthDisplayHelper |
Helps answer common questions that come up when displaying a month in a
6 row calendar grid format.
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| MutableBoolean |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableByte |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableChar |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableDouble |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableFloat |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableInt |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableLong |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| MutableShort |
This class is deprecated.
This class will be removed from a future version of the Android API.
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| Pair<F, S> |
Container to ease passing around a tuple of two objects.
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| Patterns |
Commonly used regular expression patterns.
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| PrintStreamPrinter |
Implementation of a Printer that sends its output
to a PrintStream.
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| PrintWriterPrinter |
Implementation of a Printer that sends its output
to a PrintWriter.
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| Property<T, V> |
A property is an abstraction that can be used to represent a mutable value that is held
in a host object.
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| Range<T extends Comparable<? super T>> |
Immutable class for describing the range of two numeric values.
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| Rational |
An immutable data type representation a rational number.
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| Size |
Immutable class for describing width and height dimensions in pixels.
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| SizeF |
Immutable class for describing width and height dimensions in some arbitrary
unit.
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| SparseArray<E> |
SparseArray maps integers to Objects and, unlike a normal array of Objects,
its indices can contain gaps.
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| SparseBooleanArray |
SparseBooleanArrays map integers to booleans.
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| SparseIntArray |
SparseIntArrays map integers to integers.
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| SparseLongArray |
SparseLongArrays map integers to longs.
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| StateSet |
State sets are arrays of positive ints where each element
represents the state of a View (e.g.
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| StatsLog |
StatsLog provides an API for developers to send events to statsd.
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| StringBuilderPrinter |
Implementation of a Printer that sends its output
to a StringBuilder.
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| TimeUtils |
A class containing utility methods related to time zones.
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| TimingLogger |
This class is deprecated.
Use Trace, or
Android Studio. In
general, milliseconds is the wrong granularity for method-level tracing. Rounding errors
can overemphasize cheap operations, or underemphasize repeated operations. This timing
system also does not take CPU scheduling or frequency into account.
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| TypedValue |
Container for a dynamically typed data value.
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| Xml |
XML utility methods.
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