CODEWITHSUNDEEP
javaandroidsharedpreferences
Ricci
Ricci

Reputation: 217

How to Totalize all the score with Sharedpreferences?

As i know the basic of save int value with sharedpreferences method is using this

    SharedPreferences pref = getSharedPreferences("SavedGame", MODE_PRIVATE);
    SharedPreferences.Editor editor = pref.edit();
    editor.putInt("savedscore", Score);
    editor.commit();

and then we can get the int value in another activity using this

SharedPreferences pref = getSharedPreferences("SavedGame", MODE_PRIVATE); 
Score = pref.getInt("savedscore", 0);
Scoretext = (TextView)findViewById(R.id.textscore);
Scoretext.setText(String.valueOf(score));

and my question is how to totalize all the score that we got when we playing in another activity?

example ;

when i play for the first time i got the score 4000 , so of course when we use this method editor.putInt("savedscore", Score); it will save the score value and then we got the score value in another activity with using this Score = pref.getInt("savedscore", 0); it will make the int Score value to 4000

and then i play again then i got score 2000 , so of course the sharedpreferences Score = pref.getInt("savedscore", 0); int Score value will change to 2000 and not totalize

so that is my question how to Totalize the score?

Upvotes: 1

Views: 78

Answers (1)

bonnyz
bonnyz

Reputation: 13558

Simply create another preference entry "totalScore" and increment it accordingly (each time you save a new score):

//...
SharedPreferences pref = getSharedPreferences("SavedGame", MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
editor.putInt("savedscore", Score);
editor.commit();
updateTotalScore(Score)
//..


private void updateTotalScore(int newScore){
   SharedPreferences pref = getSharedPreferences("totalScore", MODE_PRIVATE);
   int current = pref.getInt("totalScore", 0);
   SharedPreferences.Editor editor = pref.edit();
   editor.putInt("totalScore", current+newScore);
   editor.commit();
}


private int getTotalScore(){
   SharedPreferences pref = getSharedPreferences("totalScore", MODE_PRIVATE);
   return pref.getInt("totalScore", 0);

}

Upvotes: 1

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