Вам нужно сохранить высокий балл для Android-игры

Ответ 1

Если вам нужно сохранить целое число, то SharedPreferences будет лучше всего использовать:

//setting preferences
SharedPreferences prefs = this.getSharedPreferences("myPrefsKey", Context.MODE_PRIVATE);
Editor editor = prefs.edit();
editor.putInt("key", score);
editor.commit();

Чтобы получить предпочтение:

//getting preferences
SharedPreferences prefs = this.getSharedPreferences("myPrefsKey", Context.MODE_PRIVATE);
int score = prefs.getInt("key", 0); //0 is the default value

Конечно замените "key" ключом для вашего значения с высоким значением и "myPrefsKey" с помощью ключа для ваших предпочтений (это может быть что угодно. Просто полезно установить их на что-то узнаваемое и уникальное).

Ответ 2

Используйте общие настройки:

public class Calc extends Activity {
    public static final String PREFS_NAME = "MyPrefsFile";

    @Override
    protected void onCreate(Bundle state){
       super.onCreate(state);
       . . .

       // Restore preferences
       SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
       boolean silent = settings.getBoolean("silentMode", false);
       setSilent(silent);
    }

    @Override
    protected void onStop(){
       super.onStop();

      // We need an Editor object to make preference changes.
      // All objects are from android.context.Context
      SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
      SharedPreferences.Editor editor = settings.edit();
      editor.putBoolean("silentMode", mSilentMode);

      // Commit the edits!
      editor.commit();
    }
}

Самый простой способ сохранить такие вещи.

Ответ 3

Я думаю, эта ссылка поможет вам в этом:

The SharedPreferences class provides a general framework that allows you to save and
retrieve persistent key-value pairs of primitive data types. You can use
SharedPreferences to save any primitive data: booleans, floats, ints, longs, and strings. 
This data will persist across user sessions (even if your application is killed).

User Preferences

Shared preferences are not strictly for saving "user preferences," such as what ringtone
a user has chosen. If you're interested in creating user preferences for your
application, see PreferenceActivity, which provides an Activity framework for you to 
create user preferences, which will be automatically persisted (using shared preferences).

To get a SharedPreferences object for your application, use one of two methods:

    getSharedPreferences() - Use this if you need multiple preferences files identified
by name, which you specify with the first parameter.
    getPreferences() - Use this if you need only one preferences file for your Activity.
Because this will be the only preferences file for your Activity, you don't supply a name.

To write values:

    Call edit() to get a SharedPreferences.Editor.
    Add values with methods such as putBoolean() and putString().
    Commit the new values with commit()

To read values, use SharedPreferences methods such as getBoolean() and getString().

Как я вижу, лучший способ сохранить высокий балл - SharedPreferences.

Ответ 4

public class HighScores extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_high);

        //get text view
        TextView scoreView = (TextView)findViewById(R.id.high_scores_list);
        //get shared prefs
        SharedPreferences scorePrefs = getSharedPreferences(PlayGame.GAME_PREFS, 0);
        //get scores
        String[] savedScores = scorePrefs.getString("highScores", "").split("\\|");
        //build string
        StringBuilder scoreBuild = new StringBuilder("");
        for(String score : savedScores){
            scoreBuild.append(score+"\n");
        }
        //display scores
        scoreView.setText(scoreBuild.toString());
    }

}