有时候我们需要限制EditText输入的字符类型,如空格,特殊字符等,这时候我们可以使用系统提供的输入过滤器——InputFilter。具体实现如下:
/**
* 禁止EditText输入空格
* @param editText
*/
public static void setEditTextInhibitInputSpace(EditText editText){
InputFilter filter=new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
if(source.equals(" ")return "";
else return null;
}
};
editText.setFilters(new InputFilter[]{filter});
}
/**
* 禁止EditText输入特殊字符
* @param editText
*/
public static void setEditTextInhibitInputSpeChat(EditText editText){
InputFilter filter=new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
String speChat="[`~!@#$%^&*()+=|{}':;',\\[\\].<>/?~!@#¥%……&*()——+|{}【】‘;:”“’。,、?]";
Pattern pattern = Pattern.compile(speChat);
Matcher matcher = pattern.matcher(source.toString());
if(matcher.find())return "";
else return null;
}
};
editText.setFilters(new InputFilter[]{filter});
}