EditText禁止輸入空格 Android

public static void setEditTextNoSpace(final 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});


        TextWatcher textChanged = new TextWatcher() {

            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int start, int before, int count) {
                // 禁止EditText輸入空格
                if (charSequence.toString().contains(" ")) {
                    String[] str = charSequence.toString().split(" ");
                    StringBuffer sb = new StringBuffer();
                    for (int i = 0; i < str.length; i++) {
                        sb.append(str[i]);
                    }
                    editText.setText(sb.toString());
                    editText.setSelection(start);
                }
            }

            @Override
            public void afterTextChanged(Editable editable) {

            }
        };

        editText.addTextChangedListener(textChanged);

    }

 

inputET.setsetEditTextNoSpace();