在EditText 过滤Filtering 数据-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_15461/article/details/81861777

emailText.setKeyListener(new NumberKeyListener() {
@Override
public int getInputType() {
return InputType.TYPE_MASK_VARIATION;
}

@Override
protected char[] getAcceptedChars() {
  return new char[]{'i', 'o', 'p', 'a', 's', 'd', 'f', 'g',
                        'h', 'j', 'k', 'l', 'z', 'x', 'q', 'w', 'e', 'r', 't',
   'y', 'u', 'c', 'v', 'b', 'n', 'm', '.', '@', '_', '1', '2',
   '3', '4', '5', '6', '7', '8', '9', '0',};
}
});

-------------------------------------------------------------------------------

emailText.setKeyListener(new NumberKeyListener() {
@Override
public int getInputType() {
return InputType.TYPE_NULL;
}

.....................................................................................

emailText.setText("EditText element");
emailText.setKeyListener(new NumberKeyListener() {
@Override
public CharSequence filter(CharSequence source, int start, int end,
Spanned dest, int dstart, int dend) {
return source.length() < 1 ? dest.subSequence(dstart, dend) : "";
}

@Override
public int getInputType() {
  return InputType.TYPE_MASK_VARIATION;
}
@Override
protected char[] getAcceptedChars() {
  return new char[]{'i', 'o', 'p', 'a', 's', 'd', 'f', 'g',
                'h', 'j', 'k', 'l', 'z', 'x', 'q', 'w', 'e', 'r', 't',
  'y', 'u', 'c', 'v', 'b', 'n', 'm', '.', '@', '_', '1', '2',
  '3', '4', '5', '6', '7', '8', '9', '0',};
}
});