只需要在为EditText添加一个过滤器就够了。
代码如下：
public class MainActivity extends AppCompatActivity {
private EditText mEditText;
public static String stringFilter(String str) throws PatternSyntaxException{
String regEx = "[/\\:*?<>|\"\n\t]";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(str);
return m.replaceAll("");
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mEditText= (EditText) findViewById(R.id.id_et);
mEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
mEditText.addTextChangedListener(new TextWatcher() {
private int cou = 0;
int selectionEnd = 0;
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
cou = before + count;
String editable = mEditText.getText().toString();
String str = stringFilter(editable); //过滤特殊字符
if (!editable.equals(str)) {
mEditText.setText(str);
}
mEditText.setSelection(mEditText.length());
cou = mEditText.length();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
}