v18.104.22.168: 1. removed the location permission request. v22.214.171.124: 1. supported assigning a name to every record. 2. supported displaying the name instead of the dates. 3. adjusted the UI color. v126.96.36.199: 1. save the comments after back button clicked. 2. removed the donate button as there is an ad-free version in market. 3. changed the background color for buttons. 4. adjusted the menu positions. 5. rewrite the settings activity. 6. code optimized.