public void afterTextChanged(Editable arg0) {// 文字改變后出發(fā)事件String content = editText.getText().toString();    //若輸入框內(nèi)容為空按鈕可點擊，字體為藍色if (!content.isEmpty()) {textView.setClickable(true);textView.setEnabled(true);textView.setTextColor(Color.BLUE);} else {textView.setClickable(false);textView.setEnabled(false);textView.setTextColor(Color.GRAY);}}@Overridepublic void beforeTextChanged(CharSequence arg0, int arg1, int arg2,int arg3) {// TODO Auto-generated method stub}@Overridepublic void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {// TODO Auto-generated method stub}