On Android Development stage 5 I'm suck on how to set the data from my Intent to mUrls.

Question

I understand why this works in the video and the app. At least I believe I do. So when we do the try block

            JSONArray jsonPosts = mBlogData.getJSONArray("posts");
            JSONObject jsonPost = jsonPosts.getJSONObject(position);
            String blogUrl = jsonPost.getString("url");
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setData(Uri.parse(blogUrl));
            startActivity(intent);

We are pulling the URL from the the json data based off where we click. My question in regards to the code challenge is this -

How can we pull the URL when there is no JSON data? The mUrls array is a string and I'm not exactly sure how to do this. Is there a way to pull an item from the array and set my intent to it? I'm trying to use the following

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(mUrls);
startActivity(intent);

But of course I'm getting an error stating that I cannot setData with a String[] data type. I'm stuck.

// CustomListActivity.java
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.view.View;
import android.view.ListView;
import android.content.Intent;
import android.net.Uri;

public class CustomListActivity extends ListActivity {

    protected String[] mUrls = { "http://www.teamtreehouse.com", "http://developer.android.com", "http://www.github.com" };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_custom_list);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mUrls);
        setListAdapter(adapter);
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        // Add code here!
      super.onListItemClick(l, v, position, id);
      Intent intent = new Intent(Intent.ACTION.VIEW);
      intent.getData(Uri.parse(mUrls));
      startActivity(intent);
    }
}

Answer 1 · 2014-12-20T11:30:47Z

December 20, 2014 11:30am

Yes, you should be able to pull items from an array completely fine! I have never tried this in the context of a URI/URL myself but believe that this will work (I don't see why it wouldn't).

Change this line:

intent.setData(Uri.parse(mUrls);

to this:

intent.setData(Uri.parse(mUrls[0]);

Here, replace the 0 with the number in the array that you want to set the data as.

Remember! Arrays start from 0 so, if you leave it as 0, it will use the teamtreehouse.com website!

To clarify: You can pull specific items from an array using this syntax: variable[positionInArray].

Hope it helps and, if you have any more questions, give me a shout! :)

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Robert Garza

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On Android Development stage 5 I'm suck on how to set the data from my Intent to mUrls.

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Harry James

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Robert Garza

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