I have a Activity which parses json and displays into a list view. Now I want to use this Activity with a navigation Drawer.
So I want to convert this Activity into Fragment. I Tried myself and converted some part of the Activity using this one.
I moved all the process to the On Activity Created. But it shows many Errors, so i removed it.
I Don't know where did i go Wrong. So please guide me. Thanks in Advance.
Activity
public class FeedListActivity extends Activity {
private Toolbar mToolbar;
private NavigationDrawerFragment mNavigationDrawerFragment;
private static final String TAG = "FeedListActivity";
private ListView NewsView;
private FeedListAdapter listAdapter;
private List<FeedItem> feedItems;
ProgressBarCircularIndetermininate progressBar;
private String URL_FEED = "http://www.amss.et/ins/ws.json";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_feed_list);
mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
progressBar = (ProgressBarCircularIndetermininate) findViewById(R.id.progressBar);
progressBar.setVisibility(View.VISIBLE);
mNavigationDrawerFragment = (NavigationDrawerFragment) getFragmentManager().findFragmentById(R.id.fragment_drawer);
mNavigationDrawerFragment.setup(R.id.fragment_drawer, (DrawerLayout) findViewById(R.id.drawer), mToolbar);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(this, feedItems);
NewsView = (ListView) findViewById(R.id.feed_list);
NewsView.setAdapter(listAdapter);
// making fresh volley request and getting json
GsonRequest<FeedResult> gsonRequest = new GsonRequest<FeedResult>(URL_FEED, FeedResult.class,
new Response.Listener<FeedResult>() {
@Override
public void onResponse(FeedResult response) {
feedItems = response.getFeedItems();
listAdapter.setData(feedItems);
listAdapter.notifyDataSetChanged();
progressBar.setVisibility(View.INVISIBLE);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d(TAG, "Error: " + error.getMessage());
}
});
// Adding request to volley request queue
AppController.getInstance().addRequest(gsonRequest, TAG);
getimg();
}
// @Override protected int getLayoutResource() {
// return R.layout.activity_feed_list;
// }
/**
* Parsing json reponse and passing the data to News view list adapter
*/
private void parseJsonFeed(JSONObject response) {
try {
JSONArray feedArray = response.getJSONArray("feed");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
FeedItem item = new FeedItem();
item.setId(feedObj.getInt("id"));
item.setName(feedObj.getString("name"));
// Image might be null sometimes
String image = feedObj.isNull("image") ? null : feedObj
.getString("image");
item.setImageUrl(image);
item.setStatus(feedObj.getString("status"));
item.setProfilePic(feedObj.getString("profilePic"));
item.setTimeStamp(feedObj.getString("timeStamp"));
// url might be null sometimes
String feedUrl = feedObj.isNull("url") ? null : feedObj
.getString("url");
item.setUrl(feedUrl);
feedItems.add(item);
}
// notify data changes to list adapater
listAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
public void getimg(){
Log.d(TAG,"Entered");
NewsView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
img(feedItems.get(arg2).getImageUrl());
}
});
}
public void img(String img){
Toast.makeText(this, img, Toast.LENGTH_LONG).show();
}
public void Search(View v){
Intent intent = getIntent();
finish();
startActivity(intent);
Toast.makeText(this, "Searching", Toast.LENGTH_LONG).show();
}
}
Converted Fragment
public class FeedFragment extends Fragment {
public FeedFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_feed, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ListView NewsView;
final FeedListAdapter listAdapter;
final List<FeedItem> feedItems;
final ProgressBarCircularIndetermininate progressBar;
String URL_FEED = "http://www.amss.et/ins/ws.json";
View v = getView();
progressBar = (ProgressBarCircularIndetermininate) v.findViewById(R.id.progressBar);
progressBar.setVisibility(View.VISIBLE);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(getActivity(), feedItems);
NewsView = (ListView) v.findViewById(R.id.feed_list);
NewsView.setAdapter(listAdapter);
}
public interface OnFragmentInteractionListener {
public void onFragmentInteraction(Uri uri);
}
}
