[Fix]Autoreload SDK,rem test code

Author: DeerajTheepshi

mode/languages/mode.properties

@@ -88,6 +88,7 @@ android_mode.dialog.cannot_export_package_body = The sketch still has the defaul
 android_mode.dialog.cannot_use_default_icons_title = Cannot export package...
 android_mode.dialog.cannot_use_default_icons_body = The sketch does not include all required app icons. Processing could use its default set of Android icons, which are okay to test the app on your device, but a bad idea to distribute it on the Play store. Create a full set of unique icons for your app, and copy them into the sketch folder. Once you have done that, try exporting the sketch again.<br><br>For more info on distributing apps from Processing,<br>check <a href=\"%s\">this online tutorial</a>.
 android_mode.warn.cannot_load_sdk_title = Bad news...
+android_mode.warn.broken_sdk_folder = Your SDK path seems to be broken as %s
 android_mode.warn.cannot_load_sdk_body = The Android SDK could not be loaded, because:\n%s.\nThe Android Mode will be disabled.
 android_mode.info.cannot_open_sdk_path = "Android SDK path couldn't be opened.";
 android_mode.error.cannot_create_avd = "Could not create a virtual device for the emulator.";

mode/src/processing/mode/android/AndroidEditor.java

@@ -183,22 +183,6 @@ public void actionPerformed(ActionEvent e) {
     });
     androidMenu.add(item);
 
-    //For testing SDK Downloader - Remove Later. --------------------------------------
-    item = new JMenuItem("SDK Downloader");
-    item.addActionListener(new ActionListener() {
-      public void actionPerformed(ActionEvent e) {
-        try {
-          AndroidSDK.download(null,androidMode);
-        } catch (AndroidSDK.BadSDKException ex) {
-          ex.printStackTrace();
-        } catch (AndroidSDK.CancelException ex) {
-          ex.printStackTrace();
-        }
-      }
-    });
-    androidMenu.add(item);
-    //--------------------------------------------------------------------
-
     androidMenu.addSeparator();
 
     fragmentItem = new JCheckBoxMenuItem(AndroidMode.getTextString("menu.android.app"));

mode/src/processing/mode/android/AndroidMode.java

@@ -157,7 +157,17 @@ public void checkSDK(Editor editor) {
     if (userCancelledSDKSearch) return;
     checkingSDK = true;
     Throwable tr = null;
-    if (sdk == null) {      
+    Boolean broken = false;
+    if (sdk != null) { //when mode changes, sdk object is not recreated, this ensures that
+      try {
+        sdk = new AndroidSDK(sdk.getSdkFolder());
+      } catch (AndroidSDK.BadSDKException | IOException e) {
+        Messages.showWarning(AndroidMode.getTextString("android_mode.warn.cannot_load_sdk_title"),
+                AndroidMode.getTextString("android_mode.warn.broken_sdk_folder",e.getMessage()));
+        broken = true;
+      }
+    }
+    if (sdk == null || broken) {
       try {
         sdk = AndroidSDK.load(true, editor);
         if (sdk == null) {