reduced multiple code blocks by adding BaseActionBarActivity class.

app/src/main/java/fr/gaulupeau/apps/Poche/BaseActionBarActivity.java

@@ -0,0 +1,37 @@
+package fr.gaulupeau.apps.Poche;
+
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.MenuItem;
+
+public class BaseActionBarActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		addBackButtonToActionBar();
+	}
+
+	@TargetApi(11)
+	protected void addBackButtonToActionBar() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+			try {
+				getActionBar().setDisplayHomeAsUpEnabled(true);
+			} catch (Exception e) {
+				//
+			}
+		}
+	}
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		if (item.getItemId() == android.R.id.home) {
+			this.finish();
+			return true;
+		}
+		return super.onOptionsItemSelected(item);
+	}
+}

app/src/main/java/fr/gaulupeau/apps/Poche/ListArticles.java

@@ -16,7 +16,7 @@ import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ListView;
 
-public class ListArticles extends Activity {
+public class ListArticles extends BaseActionBarActivity {
 
     private ArrayList<Article> readArticlesInfo;
 	private ListView readList;
@@ -25,15 +25,6 @@ public class ListArticles extends Activity {
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.list);
-
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-			try {
-				getActionBar().setDisplayHomeAsUpEnabled(true);
-			} catch (Exception e) {
-				//
-			}
-		}
-
 		setupDB();
 		setupList(false);
 	}
@@ -60,15 +51,12 @@ public class ListArticles extends Activity {
         switch (item.getItemId()) {
         	case R.id.menuShowAll:
         		setupList(true);
-        		return super.onOptionsItemSelected(item);
+        		return true;
         	case R.id.menuWipeDb:
         		ArticlesSQLiteOpenHelper helper = new ArticlesSQLiteOpenHelper(this);
         		helper.truncateTables(database);
         		setupList(false);
-        		return super.onOptionsItemSelected(item);
+        		return true;
-			case android.R.id.home:
-				this.finish();
-				return super.onOptionsItemSelected(item);
     		default:
     			return super.onOptionsItemSelected(item);
         }

app/src/main/java/fr/gaulupeau/apps/Poche/ReadArticle.java

@@ -34,7 +34,7 @@ import java.net.URL;
 
 import fr.gaulupeau.apps.InThePoche.R;
 
-public class ReadArticle extends Activity {
+public class ReadArticle extends BaseActionBarActivity {
 	WebView webViewContent;
 	Button btnMarkRead;
     SQLiteDatabase database;
@@ -42,19 +42,11 @@ public class ReadArticle extends Activity {
     ScrollView view;
     
 	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
 		requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
 		requestWindowFeature(Window.FEATURE_PROGRESS);
+		super.onCreate(savedInstanceState);
 		setContentView(R.layout.article);
 
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-			try {
-				getActionBar().setDisplayHomeAsUpEnabled(true);
-			} catch (Exception e) {
-				//
-			}
-		}
-
 		view = (ScrollView) findViewById(R.id.scroll);
 		ArticlesSQLiteOpenHelper helper = new ArticlesSQLiteOpenHelper(getApplicationContext());
 		database = helper.getWritableDatabase();
@@ -149,15 +141,4 @@ public class ReadArticle extends Activity {
 		super.onDestroy();
 		database.close();
 	}
-
-	@Override
-	public boolean onOptionsItemSelected(MenuItem item) {
-		switch (item.getItemId()) {
-			case android.R.id.home:
-				this.finish();
-				return super.onOptionsItemSelected(item);
-			default:
-				return super.onOptionsItemSelected(item);
-		}
-	}
 }

app/src/main/java/fr/gaulupeau/apps/Poche/Settings.java

@@ -13,7 +13,7 @@ import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
 
-public class Settings extends Activity {
+public class Settings extends BaseActionBarActivity {
 	Button btnDone;
 	EditText editPocheUrl;
 	EditText editAPIUsername;
@@ -26,14 +26,6 @@ public class Settings extends Activity {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.settings);
 
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-			try {
-				getActionBar().setDisplayHomeAsUpEnabled(true);
-			} catch (Exception e) {
-				//
-			}
-		}
-
         SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
         String pocheUrl = settings.getString("pocheUrl", "http://");
         String apiUsername = settings.getString("APIUsername", "");
@@ -63,15 +55,4 @@ public class Settings extends Activity {
 			//
 		}
 	}
-
-	@Override
-	public boolean onOptionsItemSelected(MenuItem item) {
-		switch (item.getItemId()) {
-			case android.R.id.home:
-				this.finish();
-				return true;
-			default:
-				return super.onOptionsItemSelected(item);
-		}
-	}
 }