Constructor intent error

Question

I'm getting this error: "The constructor Intent(NewsFragment, Class<BlogWebViewActivity>) is undefined"

for this line:

Intent intent = new Intent(this,BlogWebViewActivity.class);

any help would be appreciated!

Answer 1 · 2014-02-26T18:26:46Z

February 26, 2014 6:26pm

The issue is that Fragment (the parent of NewsFragment, I'm assuming) is not a descendent of Context. This is one area where Activities and Fragments are different. We can use this to refer to the Context inside activities because the Activity base class extends the Context class.

Anyhow, a simple solution in Fragments is to use the method getActivity() instead of this when referring to the context. getActivity() gets the activity that the Fragment is currently running in, which is the appropriate context to use.

Answer 2 · 2014-02-26T18:33:19Z

February 26, 2014 6:33pm

Thanks, that worked great!

I have 1 more error that I'm unsure about that I think relates to the fact I am using a fragment instead of an activity on this line:

getSystemService(Context.CONNECTIVITY_SERVICE);

The method getSystemService(String) is undefined for the type NewsFragment

Answer 3 · 2014-02-26T19:23:31Z

February 26, 2014 7:23pm

There are no errors but now the app won't run. I'm getting these messages in the log cat

02-26 19:13:08.033: E/AndroidRuntime(1280): FATAL EXCEPTION: main

02-26 19:13:08.033: E/AndroidRuntime(1280): java.lang.NullPointerException

02-26 19:13:08.033: E/AndroidRuntime(1280): at com.teamtreehouse.ribbit.NewsFragment.onCreate(NewsFragment.java:65)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.app.Fragment.performCreate(Fragment.java:1477)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:893)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.app.FragmentManagerImpl.performPendingDeferredStart(FragmentManager.java:823)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.app.Fragment.setUserVisibleHint(Fragment.java:841)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.app.FragmentPagerAdapter.setPrimaryItem(FragmentPagerAdapter.java:130)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.view.ViewPager.populate(ViewPager.java:1066)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.view.ViewPager.populate(ViewPager.java:914)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.View.measure(View.java:15848)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.View.measure(View.java:15848)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:13:08.033: E/AndroidRuntime(1280): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:302)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.View.measure(View.java:15848)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

02-26 19:13:08.033: E/AndroidRuntime(1280): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.View.measure(View.java:15848)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.Choreographer.doCallbacks(Choreographer.java:562)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.Choreographer.doFrame(Choreographer.java:532)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.os.Handler.handleCallback(Handler.java:730)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.os.Handler.dispatchMessage(Handler.java:92)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.os.Looper.loop(Looper.java:137)

02-26 19:13:08.033: E/AndroidRuntime(1280): at android.app.ActivityThread.main(ActivityThread.java:5103)

02-26 19:13:08.033: E/AndroidRuntime(1280): at java.lang.reflect.Method.invokeNative(Native Method)

02-26 19:13:08.033: E/AndroidRuntime(1280): at java.lang.reflect.Method.invoke(Method.java:525)

02-26 19:13:08.033: E/AndroidRuntime(1280): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)

02-26 19:13:08.033: E/AndroidRuntime(1280): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)

02-26 19:13:08.033: E/AndroidRuntime(1280): at dalvik.system.NativeStart.main(Native Method)

02-26 19:19:37.457: D/dalvikvm(1488): GC_FOR_ALLOC freed 182K, 25% free 2784K/3680K, paused 3ms, total 3ms

02-26 19:19:37.461: D/dalvikvm(1488): GC_FOR_ALLOC freed 100K, 26% free 3002K/4004K, paused 2ms, total 2ms

02-26 19:19:37.469: I/dalvikvm-heap(1488): Grow heap (frag case) to 4.700MB for 1127532-byte allocation

02-26 19:19:37.489: D/dalvikvm(1488): GC_FOR_ALLOC freed <1K, 20% free 4103K/5108K, paused 21ms, total 21ms

02-26 19:19:37.501: D/dalvikvm(1488): GC_FOR_ALLOC freed <1K, 20% free 4103K/5108K, paused 7ms, total 7ms

02-26 19:19:37.509: I/dalvikvm-heap(1488): Grow heap (frag case) to 7.119MB for 2536932-byte allocation

02-26 19:19:37.533: D/dalvikvm(1488): GC_FOR_ALLOC freed 0K, 14% free 6580K/7588K, paused 3ms, total 3ms

02-26 19:19:37.545: I/MainActivity(1488): neil

02-26 19:19:37.581: D/AndroidRuntime(1488): Shutting down VM

02-26 19:19:37.581: W/dalvikvm(1488): threadid=1: thread exiting with uncaught exception (group=0xa4baa648)

02-26 19:19:37.581: E/AndroidRuntime(1488): FATAL EXCEPTION: main

02-26 19:19:37.581: E/AndroidRuntime(1488): java.lang.NullPointerException

02-26 19:19:37.581: E/AndroidRuntime(1488): at com.teamtreehouse.ribbit.NewsFragment.onCreate(NewsFragment.java:65)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.app.Fragment.performCreate(Fragment.java:1477)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:893)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.app.FragmentManagerImpl.performPendingDeferredStart(FragmentManager.java:823)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.app.Fragment.setUserVisibleHint(Fragment.java:841)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.app.FragmentPagerAdapter.setPrimaryItem(FragmentPagerAdapter.java:130)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.view.ViewPager.populate(ViewPager.java:1066)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.view.ViewPager.populate(ViewPager.java:914)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.View.measure(View.java:15848)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.View.measure(View.java:15848)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:19:37.581: E/AndroidRuntime(1488): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:302)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.View.measure(View.java:15848)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)

02-26 19:19:37.581: E/AndroidRuntime(1488): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.View.measure(View.java:15848)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.Choreographer.doCallbacks(Choreographer.java:562)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.Choreographer.doFrame(Choreographer.java:532)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.os.Handler.handleCallback(Handler.java:730)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.os.Handler.dispatchMessage(Handler.java:92)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.os.Looper.loop(Looper.java:137)

02-26 19:19:37.581: E/AndroidRuntime(1488): at android.app.ActivityThread.main(ActivityThread.java:5103)

02-26 19:19:37.581: E/AndroidRuntime(1488): at java.lang.reflect.Method.invokeNative(Native Method)

02-26 19:19:37.581: E/AndroidRuntime(1488): at java.lang.reflect.Method.invoke(Method.java:525)

02-26 19:19:37.581: E/AndroidRuntime(1488): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)

02-26 19:19:37.581: E/AndroidRuntime(1488): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)

02-26 19:19:37.581: E/AndroidRuntime(1488): at dalvik.system.NativeStart.main(Native Method)

Answer 4 · 2014-02-26T21:20:56Z

February 26, 2014 9:20pm

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.util.ArrayList;
import java.util.HashMap;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.text.Html;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class NewsFragment extends ListFragment{

    public static final int NUMBER_OF_POSTS = 20;
    public static final String TAG = NewsFragment.class.getSimpleName();
    protected JSONObject mBlogData;
    protected ProgressBar mProgressBar;

    private final String KEY_TITLE = "title";
    private final String KEY_DATE = "date";

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_news_list,
                container, false);
        mProgressBar = (ProgressBar) rootView.findViewById(R.id.progressBar1);

        return rootView;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if(NetworkIsAvailable())    {
            mProgressBar.setVisibility(View.VISIBLE);
            GetBlogPostsTask getBlogPostsTask = new GetBlogPostsTask();
            getBlogPostsTask.execute();
        }
        else {
            Toast.makeText(getActivity(), "Network is unavailable!", Toast.LENGTH_LONG).show();
        }

        //String message = getString(R.string.no_items);
        //Toast.makeText(this, message, Toast.LENGTH_LONG).show();

    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        try {
        JSONArray jsonPosts = mBlogData.getJSONArray("posts");
        JSONObject jsonPost = jsonPosts.getJSONObject(position);
        String blogUrl = jsonPost.getString("url");

        Intent intent = new Intent(getActivity(),BlogWebViewActivity.class);
        intent.setData(Uri.parse(blogUrl));
        startActivity(intent);
    }
        catch (JSONException e) {
            logException(e);
        }
    }

    private void logException(Exception e) {
        Log.e(TAG, "Exception caught!", e);
    }

    private boolean NetworkIsAvailable() {
        ConnectivityManager manager = (ConnectivityManager) 
        getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = manager.getActiveNetworkInfo();

        boolean isAvailable = false;
        if(networkInfo != null && networkInfo.isConnected()) {
            isAvailable = true;
        }
        return isAvailable;
    }

    public void handleBlogResponse() {
        mProgressBar.setVisibility(View.INVISIBLE);
        if (mBlogData == null) {
            updateDisplayForError();
        }
        else { 
            try {
                JSONArray jsonPosts = mBlogData.getJSONArray("posts");
                ArrayList<HashMap<String, String>> blogPosts = new ArrayList<HashMap<String, String>>();
                for (int i = 0; i < jsonPosts.length(); i++) {
                    JSONObject post = jsonPosts.getJSONObject(i);
                    String title = post.getString(KEY_TITLE);
                    title = Html.fromHtml(title).toString();
                    String date = post.getString(KEY_DATE);
                    date = Html.fromHtml(date).toString();

                    HashMap<String, String> blogPost = new HashMap<String, String>();
                    blogPost.put(KEY_TITLE, title);
                    blogPost.put(KEY_DATE, date);

                    blogPosts.add(blogPost);
                }
                String[] keys = { KEY_TITLE, KEY_DATE };
                int[] ids = { android.R.id.text1, android.R.id.text2 };
                SimpleAdapter adapter = new SimpleAdapter(getActivity(), blogPosts, android.R.layout.simple_list_item_2, keys, ids);
                setListAdapter(adapter);
            } catch (JSONException e) {
                logException(e);
            }
        }

    }


    private void updateDisplayForError() {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());   
        builder.setTitle(getString(R.string.error_title));
        builder.setMessage(getString(R.string.error_message));
        builder.setPositiveButton(android.R.string.ok, null);
        AlertDialog dialog = builder.create();
        dialog.show();

        TextView emptyTextView = (TextView) getListView().getEmptyView();
        emptyTextView.setText(getString(R.string.no_items));
    }

    private class GetBlogPostsTask extends AsyncTask<Object, Void, JSONObject> {

        @Override
        protected JSONObject doInBackground(Object... params) {
            int responseCode = -1;
            JSONObject jsonResponse = null;
            StringBuilder builder = new StringBuilder();
            HttpClient client = new DefaultHttpClient();
            HttpGet httpget = new HttpGet("http://www.ilovelimerick.ie/?json=1&count=");

            try {
                HttpResponse response = client.execute(httpget);
                StatusLine statusLine = response.getStatusLine();
                responseCode = statusLine.getStatusCode();

                if (responseCode == HttpURLConnection.HTTP_OK) {
                    HttpEntity entity = response.getEntity();
                    InputStream content = entity.getContent();
                    BufferedReader reader = new BufferedReader(new InputStreamReader(content));
                    String line;
                    while((line = reader.readLine()) != null){
                        builder.append(line);
                    }

                    jsonResponse = new JSONObject(builder.toString());
                }
                else {
                    Log.i(TAG, String.format("Unsuccessful HTTP response code: %d", responseCode));
                }
            }
            catch (JSONException e) {
                logException(e);
            }
            catch (Exception e) {
                logException(e);
            }           

            return jsonResponse;
        }   

        @Override
        protected void onPostExecute(JSONObject result) {
            mBlogData = result;
            handleBlogResponse();
        }

    }
}

Answer 5 · 2014-02-26T21:49:49Z

February 26, 2014 9:49pm

so by move do you mean swap the position of onCreate() with onCreateView() like so: it still doesn't run when I do that.

public class NewsFragment extends ListFragment{

public static final int NUMBER_OF_POSTS = 20;
public static final String TAG = NewsFragment.class.getSimpleName();
protected JSONObject mBlogData;
protected ProgressBar mProgressBar;

private final String KEY_TITLE = "title";
private final String KEY_DATE = "date";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if(NetworkIsAvailable())    {
        mProgressBar.setVisibility(View.VISIBLE);
        GetBlogPostsTask getBlogPostsTask = new GetBlogPostsTask();
        getBlogPostsTask.execute();
    }
    else {
        Toast.makeText(getActivity(), "Network is unavailable!", Toast.LENGTH_LONG).show();
    }

    //String message = getString(R.string.no_items);
    //Toast.makeText(this, message, Toast.LENGTH_LONG).show();

}

@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_news_list, container, false); mProgressBar = (ProgressBar) rootView.findViewById(R.id.progressBar1);

    return rootView;
}

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    try {
    JSONArray jsonPosts = mBlogData.getJSONArray("posts");
    JSONObject jsonPost = jsonPosts.getJSONObject(position);
    String blogUrl = jsonPost.getString("url");

    Intent intent = new Intent(getActivity(),BlogWebViewActivity.class);
    intent.setData(Uri.parse(blogUrl));
    startActivity(intent);
}
    catch (JSONException e) {
        logException(e);
    }
}

private void logException(Exception e) {
    Log.e(TAG, "Exception caught!", e);
}

private boolean NetworkIsAvailable() {
    ConnectivityManager manager = (ConnectivityManager) 
    getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo networkInfo = manager.getActiveNetworkInfo();

    boolean isAvailable = false;
    if(networkInfo != null && networkInfo.isConnected()) {
        isAvailable = true;
    }
    return isAvailable;
}

public void handleBlogResponse() {
    mProgressBar.setVisibility(View.INVISIBLE);
    if (mBlogData == null) {
        updateDisplayForError();
    }
    else { 
        try {
            JSONArray jsonPosts = mBlogData.getJSONArray("posts");
            ArrayList<HashMap<String, String>> blogPosts = new ArrayList<HashMap<String, String>>();
            for (int i = 0; i < jsonPosts.length(); i++) {
                JSONObject post = jsonPosts.getJSONObject(i);
                String title = post.getString(KEY_TITLE);
                title = Html.fromHtml(title).toString();
                String date = post.getString(KEY_DATE);
                date = Html.fromHtml(date).toString();

                HashMap<String, String> blogPost = new HashMap<String, String>();
                blogPost.put(KEY_TITLE, title);
                blogPost.put(KEY_DATE, date);

                blogPosts.add(blogPost);
            }
            String[] keys = { KEY_TITLE, KEY_DATE };
            int[] ids = { android.R.id.text1, android.R.id.text2 };
            SimpleAdapter adapter = new SimpleAdapter(getActivity(), blogPosts, android.R.layout.simple_list_item_2, keys, ids);
            setListAdapter(adapter);
        } catch (JSONException e) {
            logException(e);
        }
    }

}


private void updateDisplayForError() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());   
    builder.setTitle(getString(R.string.error_title));
    builder.setMessage(getString(R.string.error_message));
    builder.setPositiveButton(android.R.string.ok, null);
    AlertDialog dialog = builder.create();
    dialog.show();

    TextView emptyTextView = (TextView) getListView().getEmptyView();
    emptyTextView.setText(getString(R.string.no_items));
}

private class GetBlogPostsTask extends AsyncTask<Object, Void, JSONObject> {

    @Override
    protected JSONObject doInBackground(Object... params) {
        int responseCode = -1;
        JSONObject jsonResponse = null;
        StringBuilder builder = new StringBuilder();
        HttpClient client = new DefaultHttpClient();
        HttpGet httpget = new HttpGet("http://www.ilovelimerick.ie/?json=1&count=");

        try {
            HttpResponse response = client.execute(httpget);
            StatusLine statusLine = response.getStatusLine();
            responseCode = statusLine.getStatusCode();

            if (responseCode == HttpURLConnection.HTTP_OK) {
                HttpEntity entity = response.getEntity();
                InputStream content = entity.getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(content));
                String line;
                while((line = reader.readLine()) != null){
                    builder.append(line);
                }

                jsonResponse = new JSONObject(builder.toString());
            }
            else {
                Log.i(TAG, String.format("Unsuccessful HTTP response code: %d", responseCode));
            }
        }
        catch (JSONException e) {
            logException(e);
        }
        catch (Exception e) {
            logException(e);
        }           

        return jsonResponse;
    }   

    @Override
    protected void onPostExecute(JSONObject result) {
        mBlogData = result;
        handleBlogResponse();
    }

}

}

Answer 6 · 2014-02-26T22:08:44Z

February 26, 2014 10:08pm

That worked perfectly! Thanks Ben :)

Answer 7 · 2014-02-26T22:28:13Z

February 26, 2014 10:28pm

For some reason now once I click into a blog post title to try and open the post, the app crashes!

02-26 22:26:40.695: E/AndroidRuntime(1277): FATAL EXCEPTION: main

02-26 22:26:40.695: E/AndroidRuntime(1277): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.teamtreehouse.ribbit/com.teamtreehouse.ribbit.BlogWebViewActivity}; have you declared this activity in your AndroidManifest.xml?

02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): 02-26 22:26:40.695: E/AndroidRuntime(1277): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1628) at android.app.Instrumentation.execStartActivity(Instrumentation.java:1424) at android.app.Activity.startActivityForResult(Activity.java:3390) at android.app.Activity.startActivityForResult(Activity.java:3351) at android.support.v4.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:848) at android.support.v4.app.Fragment.startActivity(Fragment.java:878) at com.teamtreehouse.ribbit.NewsFragment.onListItemClick(NewsFragment.java:83) at android.support.v4.app.ListFragment$2.onItemClick(ListFragment.java:58) at android.widget.AdapterView.performItemClick(AdapterView.java:298) at android.widget.AbsListView.performItemClick(AbsListView.java:1100) at android.widget.AbsListView$PerformClick.run(AbsListView.java:2788) at android.widget.AbsListView$1.run(AbsListView.java:3463) at android.os.Handler.handleCallback(Handler.java:730) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5103) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method)

it asks have you declared this activity in your AndroidManifest.xml? which I have...

Answer 8 · 2014-02-26T22:28:36Z

February 26, 2014 10:28pm

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.teamtreehouse.ribbit" android:versionCode="1" android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="14"
    android:targetSdkVersion="19" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" android:name="RibbitApplication">
    <activity
        android:name="com.teamtreehouse.ribbit.MainActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.teamtreehouse.ribbit.LoginActivity"
        android:label="@string/title_activity_login"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name="com.teamtreehouse.ribbit.SignUpActivity"
        android:label="@string/title_activity_sign_up"
        android:parentActivityName="com.teamtreehouse.ribbit.LoginActivity"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name="com.neils.blogreader.BlogWebViewActivity"
        android:label="@string/title_activity_blog_web_view" >
    </activity>
</application>

</manifest>

Answer 9 · 2014-02-26T22:36:49Z

February 26, 2014 10:36pm

sorry about that, heres the new post: https://teamtreehouse.com/forum/fragment-webviewactivity-error

Welcome to the Treehouse Community

Looking to learn something new?

Neil Quinn

Neil Quinn

Constructor intent error

9 Answers

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Neil Quinn

Neil Quinn

Ben Jakuben

Ben Jakuben

Neil Quinn

Neil Quinn

Neil Quinn

Neil Quinn