如何从联机而不是资产文件夹读取Json

Question

下面是JSON结构。

{"questions" : [{"category":"general","question": "Grand Central Terminal, Park Avenue, New York is the world's", "choices": ["largest railway station","highest railway station","longest railway station","None of the above"], "correctAnswer":0},
    {"category":"science","question": "Entomology is the science that studies", "choices": ["Behavior of human beings","Insects","The origin and history of technical and scientific terms","the formation of rocks"], "correctAnswer":1},

    {"category":"science", "question":"What is known as the 'master gland' of the human body?", "choices":["Thyroid gland","Pituitary gland","Pineal gland","Pancreas"],"correctAnswer":1}
  ]}

从资产中读取的代码是

    private String loadJSONFromAsset() {
        String json = null;
        try {
            InputStream is = mContext.getAssets().open("questionsJSON.json");
            int size = is.available();
            byte[] buffer = new byte[size];
            is.read(buffer);
            is.close();
            json = new String(buffer, "UTF-8");
        } catch (IOException ex) {
            ex.printStackTrace();
            return null;
        }
        return json;
    }

我想显示的进度加载对话框，当下一个问题加载，任何帮助将非常感谢。提前道谢。

Answer 1

最好的选择是使用REST API，从服务器/数据库获取数据，这些数据可以从任何地方随时编辑

您可以学习使用Node js，这并不困难，而且它是基于JavaScript的。

为了从API获取JSON，可以使用reverfit