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Jeremy Martin
Courses Plus Student 2,521 PointsTrouble with Intents using String[]
Code Challenge: The member variable 'mUrls' is filled with a few URLs. In the 'onListItemClick()' method, declare and start an Intent that causes the URL tapped on to be viewed in the browser. Hint: The String URL needs to be set as the data for the Intent as a Uri object.
The trouble is with the Strings and Intents at the bottom.
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) {
super.onListItemClick(l, v, position, id);
String URLs = mUrls.getString(position);
String URL = URLs.getString();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(URL));
startActivity(intent);
}
}
10 Answers
Deoward Kotze
14,604 PointsHey Jeremy, I had a look and the following seems to pass the challenge:
String URL = mUrls[position];
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(URL));
startActivity(intent);
Deoward Kotze
14,604 PointsI don't see any problems with the way you are creating the Intent and setting the Uri, so I would think the problem lies in the way you are retrieving the String you want to pass as the uri from mUrls array.
String URL = URLs.getString();
Why are you calling getString() again without parameters?
You could just do the following:
String URL = mUrls.getString(position);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(URL));
startActivity(intent);
Jeremy Martin
Courses Plus Student 2,521 PointsThanks for the feedback! I put the extra getString() in there because I was desperate... lol. Tried a number of String combinations including what you have here. Been a this one for hours and I am really not sure what else to try.
Any suggestions?
Deoward Kotze
14,604 PointsCould you give me some specifics about the errors or exceptions you are getting?
perhaps try the following:
String URL = (String) getListAdapter().getItem(position);
Jeremy Martin
Courses Plus Student 2,521 PointsThe error message from the original code posted:
Bummer! Compilation Error! Check your syntax and make sure you are correctly declaring your intent, setting its data, and then starting it using the 'startActivity' method.
I receive the same error message for both suggested solutions as well.
Forgive my ambiguity, I'm a newbie.
Deoward Kotze
14,604 PointsAgh apologies buddy, I didn't realise it was a code challenge...:)
perhaps they want you to create the intent and pass the uri as data in the same line.
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(URL));
Jeremy Martin
Courses Plus Student 2,521 PointsOkay, I tried that as well and I received the same error message as before. I am so lost with this one. I feel like I'm being tricked. Lol
Deoward Kotze
14,604 Pointsyeah I know the feeling - but without proper debugging tools it can be very to hard to find out what you are doing wrong! What course is this code challenge from & what video is the challenge based on? Perhaps I can have a look at it and see if I can figure out exactly what they want you to do here....
Jeremy Martin
Courses Plus Student 2,521 PointsI think Ben said they would be working on a debugging functionality for the Code Challenges this week...
Jeremy Martin
Courses Plus Student 2,521 PointsTrack: Android Development
Project: Build a Blog Reader Android App
Stage 5: Using Intents to Display and Share Posts
Video: Opening a Webpage in the Browser
.... It's the first video and Code Challenge of the bunch... which is crazy because I was able to finish the other ones in this section.
Jeremy Martin
Courses Plus Student 2,521 PointsWow... Thank you!!!
So, 'String URL = mUrls[position];' does not accomplish the same result as using 'String URL = mUrls.getString(position);'???
Lyubomyr Ostapiv
1,119 PointsHey. thanks for answer guys. I had no luck with intent.setData(Uri.parse(mUrls[position])); but two-line code worked String URL = mUrls.[position]; intent.setData(Uri.parse(URL));