Use this https://github.com/amirmehdizadeh/JalaliCalendar to get the Jalali date
first get the year, month and day from your date like
String date = "2016-08-01 19:55:16";
String[] parts = date.split(" ");
String datePart = parts[0];
String timePart = parts[1];
int year;
int month;
int day;
String[] dateParts = datePart.split("-");
year = Integer.parseInt( dateParts[0]);
month = Integer.parseInt( dateParts[1]);
day = Integer.parseInt( dateParts[2]);
then create the Object to pass to that library
JalaliCalendar.YearMonthDate georgianDate = new JalaliCalendar.YearMonthDate(year,month,day);
and then call its method that convert from Georgian date to Jalali Date
JalaliCalendar.YearMonthDate JalaliDate = JalaliCalendar.gregorianToJalali(georgianDate);
And Finally append the date with time to show in text view
String jalaliDateTime = JalaliDate.toString() + " " + timePart;
textView.setText(jalaliDateTime);