Android清空编辑框内容功能的实现实例代码

/** *清空编辑框按钮 * @param editText 需要清空的EditText控件 * @param delImageView 清空数据的图片 */ protected void clearEditText(final EditText editText, final ImageView delImageView) { /文本框编辑的监听/ 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);      }    }  });  /**焦点变化监听**/  editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {    @Override    public void onFocusChange(View arg0, boolean arg1) {      // TODO Auto-generated method stub      if(editText.getText().length()!=0){      //删除图标显示        delImageView.setVisibility(View.VISIBLE);      } else {      //删除图标隐藏        delImageView.setVisibility(View.INVISIBLE);      }      if(arg1){        //得到焦点      } else {        //失去焦点，删除图标隐藏        delImageView.setVisibility(View.INVISIBLE);      }    }  });  //删除图标的点击监听事件  delImageView.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View arg0) {      // 执行清空EditText数据      editText.setText("");    }  });}