[mobile] ability to clear the log (and always show debug in menu)

mobile/res/layout/activity_main.xml

@@ -49,6 +49,16 @@
                 android:onClick="onToggleMapVisibility"
                 android:src="@drawable/ic_action_map"/>
 
+            <ImageButton
+                android:id="@+id/btnClearLog"
+                android:layout_width="@dimen/button_size"
+                android:layout_height="@dimen/button_size"
+                android:layout_gravity="bottom"
+                android:background="@android:color/transparent"
+                android:contentDescription="@string/clear_log"
+                android:onClick="onClearLog"
+                android:src="@drawable/ic_action_discard"/>
+
             <EditText
                 android:id="@+id/editCommand"
                 android:layout_width="0dp"

mobile/res/values/strings.xml

@@ -3,6 +3,7 @@
 
     <string name="app_name">IITC Mobile</string>
     <string name="toggle_map">Toggle map visibility</string>
+    <string name="clear_log">Clear log</string>
     <string name="debug_run">Run</string>
     <string name="activity_settings">IITC Mobile Settings</string>
     <string name="activity_plugins">IITC Plugins</string>

mobile/src/com/cradle/iitc_mobile/IITC_Mobile.java

@@ -142,7 +142,8 @@ public class IITC_Mobile extends Activity
 
         // enable/disable advance menu
         final String[] menuDefaults = getResources().getStringArray(R.array.pref_android_menu_default);
-        mAdvancedMenu = mSharedPrefs.getStringSet("pref_android_menu", new HashSet<String>(Arrays.asList(menuDefaults)));
+        mAdvancedMenu = mSharedPrefs
+                .getStringSet("pref_android_menu", new HashSet<String>(Arrays.asList(menuDefaults)));
 
         mPersistentZoom = mSharedPrefs.getBoolean("pref_persistent_zoom", false);
 
@@ -201,7 +202,7 @@ public class IITC_Mobile extends Activity
         } else if (key.equals("pref_fake_user_agent")) {
             mIitcWebView.setUserAgent();
         } else if (key.equals("pref_last_plugin_update")) {
-            Long forceUpdate = sharedPreferences.getLong("pref_last_plugin_update", 0);
+            final Long forceUpdate = sharedPreferences.getLong("pref_last_plugin_update", 0);
             if (forceUpdate == 0) mFileManager.updatePlugins(true);
             return;
         } else if (key.equals("pref_update_plugins_interval")) {
@@ -539,7 +540,7 @@ public class IITC_Mobile extends Activity
                     break;
 
                 case R.id.menu_debug:
-                    item.setVisible(enabled && visible);
+                    item.setVisible(enabled);
                     item.setChecked(mDebugging);
                     break;
 
@@ -802,6 +803,14 @@ public class IITC_Mobile extends Activity
         updateViews();
     }
 
+    /**
+     * onClick handler for R.id.btnClearLog, assigned in activity_main.xml
+     */
+    public void onClearLog(final View v)
+    {
+        ((IITC_LogAdapter) mLvDebug.getAdapter()).clear();
+    }
+
     private void deleteUpdateFile() {
         final File file = new File(getExternalFilesDir(null).toString() + "/iitcUpdate.apk");
         if (file != null) file.delete();