Added episode cache size preference

res/values/arrays.xml

@@ -21,6 +21,15 @@
         <item>24</item>
     </string-array>
     
+    <string-array name="episode_cache_size">
+        <item>10</item>
+        <item>20</item>
+        <item>40</item>
+        <item>60</item>
+        <item>80</item>
+        <item>100</item>
+    </string-array>
+    
     <string-array name="autodl_select_networks_default_entries">
         <item>N/A</item>
     </string-array>

res/values/strings.xml

@@ -177,6 +177,7 @@
     <string name="pref_automatic_download_sum">Configure the automatic download of episodes.</string>
     <string name="pref_autodl_wifi_filter_title">Enable Wi-Fi filter</string>
     <string name="pref_autodl_wifi_filter_sum">Allow automatic download only for selected Wi-Fi networks.</string>
+    <string name="pref_episode_cache_title">Episode cache</string>
 
     <!-- Search -->
     <string name="search_hint">Search for Feeds or Episodes</string>

res/xml/preferences.xml

@@ -35,9 +35,10 @@
             android:summary="@string/pref_mobileUpdate_sum"
             android:title="@string/pref_mobileUpdate_title" />
         <CheckBoxPreference android:summary="@string/pref_autoQueue_sum" android:defaultValue="true" android:key="prefAutoQueue" android:title="@string/pref_autoQueue_title"/>
-        <PreferenceScreen android:summary="@string/pref_automatic_download_sum" android:key="prefAutoDownloadSettings" android:title="@string/pref_automatic_download_title">
+        <ListPreference android:defaultValue="20" android:entries="@array/episode_cache_size" android:key="prefEpisodeCacheSize" android:title="@string/pref_episode_cache_title" android:entryValues="@array/episode_cache_size"/><PreferenceScreen android:summary="@string/pref_automatic_download_sum" android:key="prefAutoDownloadSettings" android:title="@string/pref_automatic_download_title">
             <CheckBoxPreference android:key="prefEnableAutoDownloadWifiFilter" android:title="@string/pref_autodl_wifi_filter_title" android:summary="@string/pref_autodl_wifi_filter_sum"/>
         </PreferenceScreen>
+        
     </PreferenceCategory>
     <PreferenceCategory android:title="@string/flattr_settings_label" >
         <PreferenceScreen

src/de/danoeh/antennapod/activity/PreferenceActivity.java

@@ -144,6 +144,20 @@ public class PreferenceActivity extends SherlockPreferenceActivity {
 								}
 							}
 						});
+		findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE)
+				.setOnPreferenceChangeListener(
+						new OnPreferenceChangeListener() {
+
+							@Override
+							public boolean onPreferenceChange(
+									Preference preference, Object newValue) {
+								if (newValue instanceof String) {
+									setEpisodeCacheSizeText(Integer
+											.valueOf((String) newValue));
+								}
+								return true;
+							}
+						});
 		buildAutodownloadSelectedNetworsPreference();
 		setSelectedNetworksEnabled(UserPreferences
 				.isEnableAutodownloadWifiFilter());
@@ -162,6 +176,7 @@ public class PreferenceActivity extends SherlockPreferenceActivity {
 	protected void onResume() {
 		super.onResume();
 		checkItemVisibility();
+		setEpisodeCacheSizeText(UserPreferences.getEpisodeCacheSize());
 		setDataFolderText();
 	}
 
@@ -175,6 +190,12 @@ public class PreferenceActivity extends SherlockPreferenceActivity {
 
 	}
 
+	private void setEpisodeCacheSizeText(int cacheSize) {
+		findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE).setSummary(
+				Integer.toString(cacheSize)
+						+ getString(R.string.episodes_suffix));
+	}
+
 	private void setDataFolderText() {
 		File f = UserPreferences.getDataFolder(this, null);
 		if (f != null) {

src/de/danoeh/antennapod/preferences/UserPreferences.java

@@ -41,6 +41,7 @@ public class UserPreferences implements
 	public static final String PREF_DATA_FOLDER = "prefDataFolder";
 	public static final String PREF_ENABLE_AUTODL_WIFI_FILTER = "prefEnableAutoDownloadWifiFilter";
 	private static final String PREF_AUTODL_SELECTED_NETWORKS = "prefAutodownloadSelectedNetworks";
+	public static final String PREF_EPISODE_CACHE_SIZE = "prefEpisodeCacheSize";
 
 	private static UserPreferences instance;
 	private Context context;
@@ -57,6 +58,7 @@ public class UserPreferences implements
 	private int theme;
 	private boolean enableAutodownloadWifiFilter;
 	private String[] autodownloadSelectedNetworks;
+	private int episodeCacheSize;
 
 	private UserPreferences(Context context) {
 		this.context = context;
@@ -101,6 +103,8 @@ public class UserPreferences implements
 				PREF_ENABLE_AUTODL_WIFI_FILTER, false);
 		autodownloadSelectedNetworks = StringUtils.split(
 				sp.getString(PREF_AUTODL_SELECTED_NETWORKS, ""), ',');
+		episodeCacheSize = Integer.valueOf(sp.getString(
+				PREF_EPISODE_CACHE_SIZE, "20"));
 	}
 
 	private int readThemeValue(String valueFromPrefs) {
@@ -181,6 +185,11 @@ public class UserPreferences implements
 		return instance.autodownloadSelectedNetworks;
 	}
 
+	public static int getEpisodeCacheSize() {
+		instanceAvailable();
+		return instance.episodeCacheSize;
+	}
+
 	@Override
 	public void onSharedPreferenceChanged(SharedPreferences sp, String key) {
 		if (AppConfig.DEBUG)
@@ -231,10 +240,14 @@ public class UserPreferences implements
 		} else if (key.equals(PREF_AUTODL_SELECTED_NETWORKS)) {
 			autodownloadSelectedNetworks = StringUtils.split(
 					sp.getString(PREF_AUTODL_SELECTED_NETWORKS, ""), ',');
+		} else if (key.equals(PREF_EPISODE_CACHE_SIZE)) {
+			episodeCacheSize = Integer.valueOf(sp.getString(
+					PREF_EPISODE_CACHE_SIZE, "20"));
 		}
 	}
 
-	public static void setAutodownloadSelectedNetworks(Context context, String[] value) {
+	public static void setAutodownloadSelectedNetworks(Context context,
+			String[] value) {
 		SharedPreferences.Editor editor = PreferenceManager
 				.getDefaultSharedPreferences(context.getApplicationContext())
 				.edit();