android.util
Class Util

java.lang.Object
  android.util.Util

public class Util
extends java.lang.Object

Wrapper class for various helper methods.

Field Summary

static java.lang.String	funcObjMethName Name of Handler Methods
static java.util.HashMap<java.lang.Class<?>,java.lang.Class<?>>	unboxed Unboxed -> Boxed primitive types

Constructor Summary

Util()

Method Summary

static java.lang.RuntimeException	addTop(java.lang.RuntimeException rte, java.lang.StackTraceElement top) Add an element to the top of a StackTrace, also used to hide implementation details
static java.lang.Object	applyFunc(java.lang.Object f, java.lang.reflect.Method m, java.lang.Object[] args) Apply the given method using the given Object and arguments
static java.lang.String	argsString(java.lang.Class<?>[] args, int i) Return a pretty argument string for displaying signatures
static java.lang.Class<?>	box(java.lang.Class<?> c) For predicting Box/Unboxing and the associated Type differences/subtyping
static java.lang.String	display(java.lang.Object o) Return a String representation of the given arbitrary Object
static java.lang.String	display(java.lang.Object o, java.lang.Class<?> c, java.lang.String idt) Return a String representation of the given Object of the given Class
static java.lang.String	display(java.lang.Object o, java.lang.String idt) Return a String representation of the given arbitrary Object
static java.lang.String	escape(char c) Return a String for a single expanded/escaped character
static java.lang.RuntimeException	exceptionDrop(int n, java.lang.String msg) Return an exception, but drop the top N frames (to hide implementation details)
static java.lang.reflect.Field[]	fields(java.lang.Class<?> c) Retrieve the (transitive) fields of the given class
static void	main(java.lang.String[] args) Simple Test for SExp output
static java.lang.String	repeat(char c, int times) Repeat a character a bunch of times
static boolean	subtype(java.lang.Class<?> a, java.lang.Class<?> b) Subtype comparison
static boolean	subtypes(java.lang.Class<?>[] a, java.lang.Class<?>[] b) Array Subtype comparison
static java.lang.String	toSExp(java.lang.Object o) Return a String representing an SExp of the given arbitrary Object

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

funcObjMethName

public static java.lang.String funcObjMethName

Name of Handler Methods

unboxed

public static java.util.HashMap<java.lang.Class<?>,java.lang.Class<?>> unboxed

Unboxed -> Boxed primitive types

Constructor Detail

Util

public Util()

Method Detail

main

public static void main(java.lang.String[] args)

Simple Test for SExp output

argsString

public static java.lang.String argsString(java.lang.Class<?>[] args,
                                          int i)

Return a pretty argument string for displaying signatures

box

public static java.lang.Class<?> box(java.lang.Class<?> c)

For predicting Box/Unboxing and the associated Type differences/subtyping

subtype

public static boolean subtype(java.lang.Class<?> a,
                              java.lang.Class<?> b)

Subtype comparison

subtypes

public static boolean subtypes(java.lang.Class<?>[] a,
                               java.lang.Class<?>[] b)

Array Subtype comparison

applyFunc

public static java.lang.Object applyFunc(java.lang.Object f,
                                         java.lang.reflect.Method m,
                                         java.lang.Object[] args)

Apply the given method using the given Object and arguments

exceptionDrop

public static java.lang.RuntimeException exceptionDrop(int n,
                                                       java.lang.String msg)

Return an exception, but drop the top N frames (to hide implementation details)

addTop

public static java.lang.RuntimeException addTop(java.lang.RuntimeException rte,
                                                java.lang.StackTraceElement top)

Add an element to the top of a StackTrace, also used to hide implementation details

display

public static java.lang.String display(java.lang.Object o)

Return a String representation of the given arbitrary Object

display

public static java.lang.String display(java.lang.Object o,
                                       java.lang.String idt)

Return a String representation of the given arbitrary Object

display

public static java.lang.String display(java.lang.Object o,
                                       java.lang.Class<?> c,
                                       java.lang.String idt)

Return a String representation of the given Object of the given Class

repeat

public static java.lang.String repeat(char c,
                                      int times)

Repeat a character a bunch of times

escape

public static java.lang.String escape(char c)

Return a String for a single expanded/escaped character

fields

public static java.lang.reflect.Field[] fields(java.lang.Class<?> c)

Retrieve the (transitive) fields of the given class

toSExp

public static java.lang.String toSExp(java.lang.Object o)

Return a String representing an SExp of the given arbitrary Object