1. If you want to have a valid image resource URL you can use Google Blogger, just insert image in article, publish and look image address.
  2. Site www.htmlpasta.com enable publish html page(have a valid URL) without registration and other formality (required to be not a robot).
  3. If you have problem with validation Google sites page in console, create it in old format, then convert to new one.
  4. Google sites page do not allow use local storage (address is random), instead OK for www.htmlpasta.com (#2)
  5. If in Android Studio you can not switch off debug mode "Tools- > Android -> AVD -> Menu -> Cold boot now" can help in some cases
  6. Install APK in Android Studio can be by drag/drop APK file (StackOverflow).
  7. If you have an APK sertificat error message generate APK with both key checked (StackOverflow).
  8. Android Studio onTouch function must return true, in other case ACTION_MOVE does not work (StackOverflow).
  9. If tooltip does not work in VisualStudio Express application insert this in your code #pragma comment(linker,"\"/manifestdependency:type='win32' \name='Microsoft.Windows.Common-Controls' version='6.0.0.0' \processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")