Android
android.text.method
public abstract class

android.text.method.NumberKeyListener

java.lang.Object
android.text.method.MetaKeyKeyListener
android.text.method.BaseKeyListener KeyListener
android.text.method.NumberKeyListener InputFilter

For numeric text entry

Known Direct Subclasses

Summary

Constants inherited from class android.text.method.MetaKeyKeyListener

Public Constructors

            NumberKeyListener()

Public Methods

          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.
          boolean  onKeyDown(View view, Editable content, int keyCode, KeyEvent event)
Handles presses of the meta keys.

Protected Methods

abstract          char[]  getAcceptedChars()
You can say which characters you can accept.
          int  lookup(KeyEvent event, Spannable content)
      static    boolean  ok(char[] accept, char c)
Methods inherited from class android.text.method.BaseKeyListener
Methods inherited from class android.text.method.MetaKeyKeyListener
Methods inherited from class java.lang.Object
Methods inherited from interface android.text.InputFilter
Methods inherited from interface android.text.method.KeyListener

Details

Public Constructors

public NumberKeyListener()

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 boolean onKeyDown(View view, Editable content, int keyCode, KeyEvent event)

Handles presses of the meta keys.

Protected Methods

protected abstract char[] getAcceptedChars()

You can say which characters you can accept.

protected int lookup(KeyEvent event, Spannable content)

protected static boolean ok(char[] accept, char c)

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