Added functionality to AddFeedActivity

res/layout/addfeed.xml

@@ -1,15 +1,30 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	android:layout_width="fill_parent"
+	android:layout_height="fill_parent"
+	android:orientation="vertical" >
+	<TextView
+		android:id="@+id/txtvFeedurl"
+		android:text="@string/feedurl_label"
 		android:layout_width="fill_parent"
-		android:layout_height="fill_parent"
-		android:orientation="vertical" >
+		android:layout_height="wrap_content"
+		/>
 	<EditText android:id="@+id/etxtFeedurl"
-				android:layout_width="fill_parent"
-				android:layout_height="wrap_content"
-				/>
-	<Button android:id="@+id/butConfirm"
-				android:text="@string/confirm_label"
-				android:layout_width="wrap_content"
-				android:layout_height="wrap_content"
-				/>
+		android:layout_width="fill_parent"
+		android:layout_height="wrap_content"/>
+	<LinearLayout
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:orientation="horizontal">
+		<Button android:id="@+id/butConfirm"
+			android:text="@string/confirm_label"
+			android:layout_width="0px"
+			android:layout_height="wrap_content"
+			android:layout_weight="1"/>
+		<Button android:id="@+id/butCancel"
+			android:layout_width="0px"
+			android:layout_height="wrap_content"
+			android:layout_weight="1"
+			android:text="@string/cancel_label"/>
+	</LinearLayout>
 </LinearLayout>

res/values/strings.xml

@@ -9,6 +9,10 @@
 
 	<!-- 				-->
 	<string name="confirm_label">Confirm</string>
+	<string name="cancel_label">Cancel</string>
+
+	<!-- AddFeed Activity labels -->
+	<string name="feedurl_label">Feed URL</string>
 
 	<!-- Feeditemview labels-->
 	<string name="download_label">Download</string>

src/de/podfetcher/activity/AddFeedActivity.java

@@ -7,6 +7,7 @@ import android.view.View;
 import de.podfetcher.R;
 import de.podfetcher.feed.Feed;
 import de.podfetcher.storage.DownloadRequester;
+import de.podfetcher.util.URLChecker;
 import com.actionbarsherlock.app.SherlockActivity;
 import com.actionbarsherlock.view.Menu;
 import com.actionbarsherlock.view.MenuInflater;
@@ -18,6 +19,7 @@ public class AddFeedActivity extends SherlockActivity {
     
 	private EditText etxtFeedurl;
 	private Button butConfirm;
+	private Button butCancel;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
@@ -26,25 +28,38 @@ public class AddFeedActivity extends SherlockActivity {
 
 		etxtFeedurl = (EditText) findViewById(R.id.etxtFeedurl);
 		butConfirm = (Button) findViewById(R.id.butConfirm);
+		butCancel = (Button) findViewById(R.id.butCancel);
 
 		butConfirm.setOnClickListener(new View.OnClickListener() {
 			@Override
 			public void onClick(View v) {
 				addNewFeed();		
+			}
+		});
+
+		butCancel.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				setResult(RESULT_CANCELED);
 				finish();
 			}
 		});
 
+
 		
 	}
 
 	private void addNewFeed() {
 		String url = etxtFeedurl.getText().toString();	
-		Feed feed = new Feed(url);
-		DownloadRequester req = DownloadRequester.getInstance();
-		req.downloadFeed(this, feed);
-
+		url = URLChecker.prepareURL(url);
 
+		if(url != null) {
+			Feed feed = new Feed(url);
+			DownloadRequester req = DownloadRequester.getInstance();
+			req.downloadFeed(this, feed);
+			setResult(RESULT_OK);
+			finish();
+		}
 	}
 	
 	

src/de/podfetcher/util/URLChecker.java

@@ -0,0 +1,29 @@
+package	de.podfetcher.util;
+
+import android.webkit.URLUtil;
+import android.util.Log;
+
+/** Provides methods for checking and editing a URL */
+public class URLChecker {
+
+	private static final String TAG = "URLChecker";	
+	private static final String FEEDBURNER_URL = "feeds.feedburner.com";
+	private static final String FEEDBURNER_PREFIX = "?format=xml";
+
+	/** Checks if URL is valid and modifies it if necessary */
+	public static String prepareURL(String url) {
+		StringBuilder builder = new StringBuilder();
+
+		if(!url.startsWith("http")) {
+			builder.append("http://");
+			Log.d(TAG, "Missing http; appending");
+		}
+		builder.append(url);
+
+		if(url.contains(FEEDBURNER_URL)) {
+			Log.d(TAG, "URL seems to be Feedburner URL; appending prefix");
+			builder.append(FEEDBURNER_PREFIX);
+		}
+		return builder.toString();	
+	}
+}