android - 在 volley 请求中添加自定义 header

Question

我有一个 Volley 请求码

RequestQueue queue = Volley.newRequestQueue(this);
String url =<My URL>;

// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
            new Response.Listener<String>() {
    @Override
    public void onResponse(String response) {
        // Display the first 500 characters of the response string.
        mTextView.setText("Response is: "+ response.substring(0,500));
    }
}, new Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error) {
        mTextView.setText("That didn't work!");
    }
});
// Add the request to the RequestQueue.
queue.add(stringRequest);

如何在此设置名为 Authorization 的 header ？

Answer 1

覆盖请求中的 getHeaders，例如:

 StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    // Display the first 500 characters of the response string.
                    mTextView.setText("Response is: "+ response.substring(0,500));
                }
            }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            mTextView.setText("That didn't work!");
        }
    }){
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            Map<String,String> params =  super.getHeaders();
            if(params==null)params = new HashMap<>();
            params.put("Authorization","Your authorization");
            //..add other headers
            return params;
        }
    };