基于Google Volley二次封装
Application 启动时，在onCreate()里面添加Volley初始化代码
RequestManager.getInstance().init(this);
发送一个请求
RequestCallback callback = new RequestCallback(){
@Override
public void onSuccess(String res) {
//请求成功
}
@Override
public void onError(VolleyError err) {
//请求失败
}
};
Object TAG = "VOLLEY_TAG";
Map<String, String> params = new HashMap<String, String>();
params.put("key", "value");
StringRequest request = (StringRequest) StringRequestBuilder.getInstance(Method.POST, url, callback).setTag(TAG).setParams(params).build();
RequestManager.getInstance().addRequest(request);
取消一个请求
RequestManager.getInstance().cance(TAG);