EditText Filter (한글, 영어, 숫자만 입력, 특수문자 체크)

출처 - http://blog.naver.com/PostView.nhn?blogId=thesims1004&logNo=50182572762

 

// 영문만 허용

protected InputFilter filterAlpha = new InputFilter() {

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

Pattern ps = Pattern.compile("^[a-zA-Z]+$");

if (!ps.matcher(source).matches()) {

return "";

} 

return null;

} 

}; 

// 영문만 허용 (숫자 포함)

protected InputFilter filterAlphaNum = new InputFilter() {

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

Pattern ps = Pattern.compile("^[a-zA-Z0-9]+$");

if (!ps.matcher(source).matches()) {

return "";

} 

return null;

} 

}; 

// 한글만 허용

public InputFilter filterKor = new InputFilter() {

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

Pattern ps = Pattern.compile("^[ㄱ-ㅎ가-힣]+$");

if (!ps.matcher(source).matches()) {

return "";

} 

return null;

} 

}; 

//한글, 숫자, 영어 허용

protected InputFilter filterKoEnNum = new InputFilter() {

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

Pattern ps = Pattern.compile("^[a-zA-Z0-9ㄱ-ㅎ가-힣]+$");

if (!ps.matcher(source).matches()) {

return "";

} 

return null;

} 

}; 

//한글, 숫자, 영어소문자, 띄어쓰기 허용

protected InputFilter filterKoEnNum2 = new InputFilter() {

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

if(source.equals("")){ // for backspace

    return source;

  }

  if(source.toString().matches("[a-z0-9ㄱ-ㅎ가-힣 ]+")){

    return source;

  }

  Log.e("TAG", "특수문자 및 영문대문자는 입력하실 수 없습니다.");

  return "";

} 

}; 

//파일명에서 특수문자 사용 체크 

특수문자 체크 함수(validateFileName) : http://blog.naver.com/thesims1004/50187197892

InputFilter specialCharacterInFileNameFilter = new InputFilter() { 

@Override

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) { 

boolean isOK = false;

String sText = new StringBuilder(source).toString();

try{

isOK = validateFileName(sText);

}

catch (Exception e) {

}

if (!isOK) {    

Toast t = Toast.makeText(getBaseContext(), "Please try without special characters.", Toast.LENGTH_SHORT);

t.show();

return "";   

}    

return source;

}

};

// 필터 적용

mEditText.setFilters(new InputFilter[] { filterKoEnNum });