AlteredCharSequencepublic class AlteredCharSequence extends Object implements CharSequence, GetChars| An AlteredCharSequence is a CharSequence that is largely mirrored from
another CharSequence, except that a specified range of characters are
mirrored from a different char array instead. |
| Fields Summary |
|---|
| private int | mStart | | private int | mEnd | | private char[] | mChars | | private CharSequence | mSource |
| Constructors Summary |
|---|
private AlteredCharSequence(CharSequence source, char[] sub, int substart, int subend)
mSource = source;
mChars = sub;
mStart = substart;
mEnd = subend;
|
| Methods Summary |
|---|
| public char | charAt(int off)
if (off >= mStart && off < mEnd)
return mChars[off - mStart];
else
return mSource.charAt(off);
| | public void | getChars(int start, int end, char[] dest, int off)
TextUtils.getChars(mSource, start, end, dest, off);
start = Math.max(mStart, start);
end = Math.min(mEnd, end);
if (start > end)
System.arraycopy(mChars, start - mStart, dest, off, end - start);
| | public int | length()
return mSource.length();
| | public static android.text.AlteredCharSequence | make(java.lang.CharSequence source, char[] sub, int substart, int subend)Create an AlteredCharSequence whose text (and possibly spans)
are mirrored from source, except that the range of
offsets substart inclusive to subend exclusive
are mirrored instead from sub, beginning at offset 0.
if (source instanceof Spanned)
return new AlteredSpanned(source, sub, substart, subend);
else
return new AlteredCharSequence(source, sub, substart, subend);
| | public java.lang.CharSequence | subSequence(int start, int end)
return AlteredCharSequence.make(mSource.subSequence(start, end),
mChars, mStart - start, mEnd - start);
| | public java.lang.String | toString()
int len = length();
char[] ret = new char[len];
getChars(0, len, ret, 0);
return String.valueOf(ret);
| | void | update(char[] sub, int substart, int subend)
mChars = sub;
mStart = substart;
mEnd = subend;
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