Android中如何将两个JSON数组分别设置到两个Spinner中？

Let’s walk through completing your code to parse the API response and populate your two Spinners correctly. Here’s a step-by-step implementation tailored to your use case:

Step 1: Complete the AsyncHttpClient Request & JSON Parsing #

First, finish your getdata() method with proper response handling and parsing logic:

private void getdata() {
    if (isNetworkAvailable()) {
        AsyncHttpClient client = new AsyncHttpClient();
        client.setTimeout(800000);
        
        // Replace with your actual API endpoint URL
        String apiUrl = "your_api_endpoint_url";
        
        client.get(apiUrl, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
                try {
                    // Convert raw response to a readable string
                    String responseString = new String(responseBody);
                    
                    // Parse the JSON array (your response is wrapped in an array)
                    JSONArray responseArray = new JSONArray(responseString);
                    // Extract the first (and only) object from the array
                    JSONObject responseObj = responseArray.getJSONObject(0);
                    
                    // Validate the API status
                    if (responseObj.getString("status").equals("success")) {
                        // Pull out the two data arrays from the response
                        JSONArray data1 = responseObj.getJSONArray("Data1");
                        JSONArray data2 = responseObj.getJSONArray("Data2");
                        
                        // Convert JSON arrays to ArrayLists for Spinner adapters
                        ArrayList<String> spinner1Items = convertJSONArrayToArrayList(data1);
                        ArrayList<String> spinner2Items = convertJSONArrayToArrayList(data2);
                        
                        // Populate each Spinner
                        setupSpinner(spinner1Items, yourFirstSpinner); // Replace with your first Spinner instance
                        setupSpinner(spinner2Items, yourSecondSpinner); // Replace with your second Spinner instance
                    } else {
                        Toast.makeText(getApplicationContext(), "API request failed", Toast.LENGTH_SHORT).show();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                    Toast.makeText(getApplicationContext(), "Failed to parse response", Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
                error.printStackTrace();
                Toast.makeText(getApplicationContext(), "Network request failed", Toast.LENGTH_SHORT).show();
            }
        });
    } else {
        Toast.makeText(getApplicationContext(), "No network connection", Toast.LENGTH_SHORT).show();
    }
}

Step 2: Helper Method to Convert JSONArray to ArrayList #

This reusable method converts the JSON arrays into a format that works with Spinner adapters:

private ArrayList<String> convertJSONArrayToArrayList(JSONArray jsonArray) throws JSONException {
    ArrayList<String> itemList = new ArrayList<>();
    for (int i = 0; i < jsonArray.length(); i++) {
        itemList.add(jsonArray.getString(i));
    }
    return itemList;
}

Step 3: Helper Method to Setup Spinner Adapter #

This method takes your item list and Spinner instance to apply the adapter:

private void setupSpinner(ArrayList<String> items, Spinner spinner) {
    // Create a default ArrayAdapter for the Spinner
    ArrayAdapter<String> adapter = new ArrayAdapter<>(this, 
            android.R.layout.simple_spinner_item, items);
    // Set the layout for the dropdown menu
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    // Attach the adapter to the Spinner
    spinner.setAdapter(adapter);
}

Important Reminders: #

• Replace your_api_endpoint_url with your actual API address.
• Replace yourFirstSpinner and yourSecondSpinner with the Spinner objects you’ve initialized via findViewById in your activity/fragment.
• The code includes error handling for network issues, JSON parsing errors, and API status checks to keep your app stable.

内容的提问来源于stack exchange，提问作者Sonal Patel