android.text.method.DigitsKeyListener
For digits-only text entry
Summary
Public Constructors
Public Methods
Protected Methods
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CharSequence |
filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) |
abstract |
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char[] |
getAcceptedChars() |
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int |
lookup(KeyEvent event, Spannable content) |
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static |
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boolean |
ok(char[] accept, char c) |
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boolean |
onKeyDown(View view, Editable content, int keyCode, KeyEvent event) |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Public Constructors
public
DigitsKeyListener()
Allocates a DigitsKeyListener that accepts the digits 0 through 9.
public
DigitsKeyListener(boolean sign, boolean decimal)
Allocates a DigitsKeyListener that accepts the digits 0 through 9,
plus the minus sign (only at the beginning) and/or decimal point
(only one per field) if specified.
Public Methods
public
CharSequence
filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
This method is called when the buffer is going to replace the
range dstart … dend
of dest
with the new text from the range start … end
of source
. Return the CharSequence that you would
like to have placed there instead, including an empty string
if appropriate, or null
to accept the original
replacement. Be careful to not to reject 0-length replacements,
as this is what happens when you delete text. Also beware that
you should not attempt to make any changes to dest
from this method; you may only examine it for context.
public
static
DigitsKeyListener
getInstance(boolean sign, boolean decimal)
Returns a DigitsKeyListener that accepts the digits 0 through 9,
plus the minus sign (only at the beginning) and/or decimal point
(only one per field) if specified.
Returns a DigitsKeyListener that accepts the digits 0 through 9.
Returns a DigitsKeyListener that accepts only the characters
that appear in the specified String. Note that not all characters
may be available on every keyboard.
Protected Methods
protected
char[]
getAcceptedChars()
You can say which characters you can accept.