Time based actions or texts

Question

I am trying to make an app for students, and in the home screen of the app I would like to display a message like "Hey! Good Morning" and it should change to "Hey!Good evening" when it is after 15:00hrs of a day and so on. How can I achieve this ?

Use system, i.e mobile, time. see this http://stackoverflow.com/questions/5369682/get-current-time-and-date-on-android — Mehraj Malik, Jul 29 '16 at 12:11

score 0 · Answer 1 · answered Jul 29 '16 at 12:13

you can get the time or hour by

import java.util.Calendar

Calendar c = Calendar.getInstance(); 
int hours = c.get(Calendar.HOUR);

from this you can choose a String for your textview:

TextView mytextview=(TextView) findViewByID(...);
String message="";
if(hours<11){
message="good morning"
}else if(hours>=11 & hours<17){
message=...}
mytextview.setText(message);

Mehraj Malik · Accepted Answer · 2016-07-29T12:23:50.613

Please check this one.It may help you.

      Calendar c = Calendar.getInstance();
        int timeOfDay = c.get(Calendar.HOUR_OF_DAY);

        if(timeOfDay >= 0 && timeOfDay < 12){
            Toast.makeText(this, "Good Morning", Toast.LENGTH_SHORT).show();        
        }else if(timeOfDay >= 12 && timeOfDay < 16){
            Toast.makeText(this, "Good Afternoon", Toast.LENGTH_SHORT).show();
        }else if(timeOfDay >= 16 && timeOfDay < 21){
            Toast.makeText(this, "Good Evening", Toast.LENGTH_SHORT).show();
        }else if(timeOfDay >= 21 && timeOfDay < 24){
            Toast.makeText(this, "Good Night", Toast.LENGTH_SHORT).show(); 
}

score 0 · Answer 3 · answered Jul 29 '16 at 12:14

You can place a check for time of day in your activity in onResume(). This will check whenever the screen which has to display the text comes to foreground. So, even when you return to it from a different screen, the check will be made. For realtime check you will need a mechanism for absolute callback of the event [of 1500 hrs].

This might be a bit cumbersome and we need more info to decide on a mechanism. You should also decide if this is exactly what you want to do or not.

Not showing checking code because of its trivial nature.

Time based actions or texts

3 Answers3