首先EditText所在的父佈局或最外層的佈局需要新增屬性：

android:clickable="true"
android:focusableInTouchMode="true"

    public void setHideKeyBoard(final Context context,EditText etView) {
        etView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View view, boolean
 
 hasFocus) {
                if(!hasFocus){
                    hideKeyboardViewCommon(context,view);
                }
            }
        });
    }

    public void hideKeyboardViewCommon(Context context,View view) {
        InputMethodManager manager = ((InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE));
        
 
if (manager != null)
            manager.hideSoftInputFromWindow(view.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
    }

呼叫：

//點選軟鍵盤外部，收起軟鍵盤
DigitKeyboardUtils digitKeyboardUtils = new DigitKeyboardUtils();
digitKeyboardUtils.setHideKeyBoard(getActivity(),etTransmoney);