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- public class new_fragment extends Fragment {
- private static final String ARG_PARAM1 = "param1";
- private static final String ARG_PARAM2 = "param2";
- private String mParam1;
- private String mParam2;
- private VolleySingleton volleySingleton;
- private ImageLoader imageLoader;
- private RequestQueue requestQueue;
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- if (getArguments() !=null){
- mParam1 = getArguments().getString(ARG_PARAM1);
- mParam2 = getArguments().getString(ARG_PARAM2);
- }
- volleySingleton = VolleySingleton.getsInstance();
- requestQueue = volleySingleton.getRequestQueue();
- RequestQueue requestQueue = VolleySingleton.getsInstance().getRequestQueue();
- JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,"http://10.0.8.152/json/new.json",null,
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- System.out.println(response);
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- requestQueue.add(request);
- }
- public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedIntanceState) {
- setHasOptionsMenu(true);
- View layout = inflater.inflate(R.layout.new_fragment, container, false);
- return layout;
- }
- @Override
- public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
- // TODO Auto-generated method stub
- super.onCreateOptionsMenu(menu, inflater);
- inflater.inflate(R.menu.ref_menu, menu);
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // handle item selection
- switch (item.getItemId()) {
- case R.id.refreshico:
- // do s.th.
- return true;
- default:
- return super.onOptionsItemSelected(item);
- }
- }
- }
- public class VolleySingleton {
- private static VolleySingleton sInstance = null;
- private ImageLoader mImageLoader;
- private RequestQueue mRequestQueue;
- private VolleySingleton(){
- mRequestQueue = Volley.newRequestQueue(appClass.getAppContext());
- mImageLoader = new ImageLoader(mRequestQueue,new ImageLoader.ImageCache() {
- private LruCache<String, Bitmap> cache = new LruCache<>((int)(Runtime.getRuntime().maxMemory()/1024)/8);
- @Override
- public Bitmap getBitmap(String url) {
- return cache.get(url);
- }
- @Override
- public void putBitmap(String url, Bitmap bitmap) {
- cache.put(url, bitmap);
- }
- });
- }
- public static VolleySingleton getsInstance(){
- if(sInstance==null){
- sInstance = new VolleySingleton();
- }
- return sInstance;
- }
- public RequestQueue getRequestQueue(){
- return mRequestQueue;
- }
- public ImageLoader getImageLoader(){
- return mImageLoader;
- }
- }
- JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,"http://10.0.8.152/json/new.json",(String)null,
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- System.out.println(response);
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,
- "http://10.0.8.152/json/new.json", (String) null, // here
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- System.out.println(response);
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- requestQueue.add(request);
- JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,"http://10.0.8.152/json/new.json",null,
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- System.out.println(response);
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- requestQueue.add(request);
- JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,"http://10.0.8.152/json/new.json",
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- System.out.println(response);
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- requestQueue.add(request);
- JsonObjectRequest jsonObjectRequest = new JsonObjectRequest("http://www.aaa.com/getJSON/dummyMeldung.json", null,
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- try {
- JSONArray jsonArray = response.getJSONArray("meldung");
- for (int i = 0; i <= jsonArray.length(); i++) {
- JSONObject meldung = jsonArray.getJSONObject(i);
- String comment = meldung.getString("comment");
- Log.d("ausgabe", comment);
- }
- } catch (JSONException e) {
- e.printStackTrace();
- }
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- JSONObject jsonObject = null;
- JsonObjectRequest request = new JsonObjectRequest(
- Request.Method.GET, "Your url", jsonObject,
- new Response.Listener<JSONObject>() {
- @Override
- public void onResponse(JSONObject response) {
- }
- },
- new Response.ErrorListener() {
- @Override
- public void onErrorResponse(VolleyError error) {
- }
- });
- dependencies {
- ......
- compile 'com.mcxiaoke.volley:library:1.0.0'
- .....
- }
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