/** *清空編輯框按鈕 * @param editText 需要清空的EditText控件 * @param delImageView 清空數據的圖片 */ protected void clearEditText(final EditText editText, final ImageView delImageView) { /文本框編輯的監聽/ editText.addTextChangedListener(new TextWatcher() {    @Override    public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {      // TODO Auto-generated method stub    }    @Override    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,                   int arg3) {      // TODO Auto-generated method stub    }    @Override    public void afterTextChanged(Editable arg0) {      // TODO Auto-generated method stub      if(editText.getText().length()!=0){        delImageView.setVisibility(View.VISIBLE);      } else {        delImageView.setVisibility(View.INVISIBLE);      }    }  });  /**焦點變化監聽**/  editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {    @Override    public void onFocusChange(View arg0, boolean arg1) {      // TODO Auto-generated method stub      if(editText.getText().length()!=0){      //刪除圖標顯示        delImageView.setVisibility(View.VISIBLE);      } else {      //刪除圖標隱藏        delImageView.setVisibility(View.INVISIBLE);      }      if(arg1){        //得到焦點      } else {        //失去焦點，刪除圖標隱藏        delImageView.setVisibility(View.INVISIBLE);      }    }  });  //刪除圖標的點擊監聽事件  delImageView.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View arg0) {      // 執行清空EditText數據      editText.setText("");    }  });}