问datepicker在DatePicker中指明出生日期，然后显示下一个生日和生日的天数？

EN

 TextView aniv =(TextView) findViewById(R.id.txtaniv);
    TextView dias =(TextView) findViewById(R.id.diasfaltam);

    // Resource Recovery
SharedPreferences dados=getSharedPreferences("info",0);
int dia = dados.getInt("dia",0);
//para mes ficar com a nomeração "normal"
int mes = dados.getInt("mes",0)+1;
int ano = dados.getInt("ano",0);

aniv.setText(dia + "/" + mes + "/" +ano);



// Perform account to determine how many days are left until the birthday
// Create two instances in the calendar
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();



// Let's get the current system date
int anoatual =cal2.get(Calendar.YEAR);
int mesatual =cal2.get(Calendar.MONTH);
int diaatual =cal2.get(Calendar.DAY_OF_MONTH);



// need to check if the birthday has already occurred or not this year
if(mesatual>mes-1) {
anoatual=anoatual+1;
}

if(mesatual==mes-1&&diaatual>dia){
anoatual=anoatual+1;
}


// set the next anniversary date, based on the retrieved data
cal1.set(anoatual, mes-1, dia);

// You need to represent the date in milliseconds to be able to make the difference between them
long milis1 = cal1.getTimeInMillis();
long milis2 = cal2.getTimeInMillis();

// Calculate the difference between the dates
long diff = milis1 - milis2;



// convert the difference in milliseconds to days
long diffDays = diff / (24 * 60 * 60 * 1000);


// Test the displayed result, to check that there are no errors in the calculations
Toast toast = Toast.makeText(getApplicationContext(),"number of days until anniversary
" +diffDays,Toast.LENGTH_LONG);
toast.show();
dias.setText(""+diffDays);
}