Question

I’m trying to make an application that allows the user to access some information only once a day else to show the user how longer does he have to wait until it can see again that information.
Here is my code:

    long aux_time = prefs.getLong("AUX",System.currentTimeMillis());
    Log.v(TAG, "aux=" + aux_time);
    Log.v(TAG, "time" + System.currentTimeMillis());

if(System.currentTimeMillis() > aux_time + (10000 * 60 * 60 * 24))
    {   

        finish();
        Intent intent = new Intent(Castle.this, Hug.class);
        startActivity(intent);
    }        
   if (System.currentTimeMillis() >= aux_time + (10000 * 60 * 60 * 24))     
    {  
        SharedPreferences.Editor editor = prefs.edit();  
        editor.putLong("AUX", System.currentTimeMillis());
        editor.commit();

        finish();
        Intent intent = new Intent(Castle.this, Hug_Accepted.class);
        startActivity(intent);
    }

I tested the code. And, I believe, it does open after 24h, but it doesn’t opens when I first open the Activity because there is a difference of 0.00000000001 ms between those two when I compare them in the second if. Any ideas?

Answer 1

In addition to Jave’s answer

1. Don’t check of equality with current time, instead check if
(System.currentTimeMillis() > aux_time + (1000 * 60 * 60 * 24)).
   Here you check whether the current time is greater than aux_time by
   at least 24 hours.
2. What is the role of ‘k’ here? It’s value is never used.