EditText禁止输空格

1.EditText禁止输空格
editText.setFilters(new InputFilter[]{filter});

private InputFilter filter=new InputFilter() {   @Override   public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

//返回null表示接收输入的字符,返回空字符串表示不接受输入的字符
      if(source.equals(" "))return "";      else return null;   }};

2.EditText禁止输空格+换行键
editText.setFilters(new InputFilter[]{filter});
private InputFilter filter=new InputFilter() {   @Override   public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {      if(source.equals(" ")||source.toString().contentEquals("\n"))return "";      else return null;   }};