在StringBuilder中附加逗号

Question

我有一个小问题,我的代码工作,并向我发送经度和纬度的输出.我只想用逗号和空格来分隔textview中的值.我不想要行分隔符.

我得到的:32.67543-55.986454

我想要的:32.67543,-55.986454(逗号和空格)

有任何想法吗？

码:

/**
 * After completing background task Dismiss the progress dialog
 * *
 */
protected void onPostExecute(JSONObject product) {
    if (product != null) {
        // product with this pid found
        // Edit Text
        lblDummyLocation = (TextView) findViewById(R.id.lblDummyLocation);

        StringBuilder jsonStringBuilder = new StringBuilder(); //Create StringBuilder for concatenation of JSON results

        // display profile data in EditText
        try {
            //txtMessage.setText(product.getString(TAG_FIRSTNAME));  //Don't set the text here
            jsonStringBuilder.append(product.getString(TAG_LATITUDE)); //Concatenate each separate item
            jsonStringBuilder.append(System.getProperty("line.separator"));
        } catch (JSONException e) {
            e.printStackTrace();
        }
        try {
            //txtMessage.setText(product.getString(TAG_LASTNAME));
            jsonStringBuilder.append(product.getString(TAG_LONGITUDE));
            //jsonStringBuilder.append(System.getProperty("line.separator"));
        } catch (JSONException e) {
            e.printStackTrace();
        }

        lblDummyLocation.setText(jsonStringBuilder.toString());
    }

    // dismiss the dialog once got all details
    pDialog.dismiss();
}

}

Answer 1

获得纬度之后的line.separator会在它之后添加一个新行,我不认为你想要那个.

要添加逗号,只需另外添加.

失败时只需要一个try/catch块.

StringBuilder jsonStringBuilder = new StringBuilder(); 

// display profile data in EditText
try 
{
    jsonStringBuilder.append(product.getString(TAG_LATITUDE));
    jsonStringBuilder.append(", ");                                
    jsonStringBuilder.append(product.getString(TAG_LONGITUDE));
    lblDummyLocation.setText(jsonStringBuilder.toString());            
} 
catch (JSONException e) 
{
    e.printStackTrace(); // use a logger for this ideally
    lblDummyLocation.setText("Failed to get co-ordinates");            
}