public class InputTxtFilter{
public static final int INPUT_TYPE_EN = 0x01;
public static final int INPUT_TYPE_CH = 0x02;
private static final String[] SPELL = new String[]{
"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z",
"ā","á","ǎ","à","ō","ó","ǒ","ò","ē","é","ě","è","ī","í","ǐ","ì","ū","ú","ǔ","ù","ǖ","ǘ","ǚ","ǜ","ü"
};
private static char[] chineseParam = new char[]{'」','，','。','？','…','：','～','【','＃','、','％','＊','＆','＄','（','‘','’','“','”','『','〔','｛','【'
,'￥','￡','‖','〖','《','「','》','〗','】','｝','〕','』','”','）','！','；','—'};
private InputTxtFilter( ){
}
public static void inputFilter( final Context context, final EditText editText, final int type, final int inputLimit){
InputFilter[] filters = new InputFilter[1];
filters[0] = new InputFilter.LengthFilter(inputLimit){
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend){
boolean isRightCharater = false;
if(type == INPUT_TYPE_EN){
isRightCharater = isLetter(source.toString());
}else if(type == INPUT_TYPE_CH){
isRightCharater = isChineseWord(source.toString());
}
if ( !isRightCharater|| dest.toString( ).length( )>=inputLimit ){
return "";
}
return source;
}
};
editText.setFilters(filters);
}
/**
* 检测String是否全是中文
*
*/
public static boolean isChineseWord( String name ){
boolean res=true;
char[] cTemp = name.toCharArray( );
for( int i = 0; i < name.length( ); i++ ){
if( !isChinese( cTemp[ i ] ) ){
res=false;
break;
}
}
return res;
}
/**
* 是否为英文字母
*
* */
public static boolean isLetter( String inputStr ){
char[] inputArray = inputStr.toCharArray( );
List<String> spellList = Arrays.asList( SPELL );
for( char input : inputArray ){
if( !spellList.contains( input + "" ) ){
return false;
}
}
return true;
}
/**
* 判定输入汉字
* @param c
*/
public static boolean isChinese( char c ){
for( char param : chineseParam ){
if( param == c ){
return false;
}
}
Character.UnicodeBlock ub = Character.UnicodeBlock.of( c );
if ( ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS ){
return true;
}
return false;
}
}