android-calendar
how to show milliseconds in days:hours:min:seconds
A simple way to calculate the time is to use something like long seconds = timeInMilliSeconds / 1000; long minutes = seconds / 60; long hours = minutes / 60; long days = hours / 24; String time = days + “:” + hours % 24 + “:” + minutes % 60 + “:” + … Read more
Calender.getInstance() gives error in Android Studio
You have the wrong import statement for Calendar. It needs to be java.util.Calendar. My guess is that you have an import for android.icu.util.Calendar.
Is there any way to dynamically change an app icon like Calendar app does?
Whatever your home screen is has special hooks for whatever your calendar app is and whatever your alarm clock app is. In general, apps cannot update their icons. What do you mean by hooks? For example, Samsung can ship a Samsung calendar app on Samsung devices. Samsung’s home screen on those same Samsung devices can … Read more
java.lang.IllegalArgumentException: Bad class: class java.util.GregorianCalendar
A Calendar can’t be directly formatted, you need to get the Date from the Calendar, like this: String formattedDate = dateFormat.format(someDate.getTime());