SharedPreferences 没有保存我的数据

Question

So in my game I'm making, I'm using SharedPreferences to save my data, however it's not saving my data or restoring it (either or both). (And yes I know getting using double.valueOf() is inefficient but that's not the problem now)

Here's my onCreate (where I get all the saved data)

       public int hasPlayed = 0;
public double $money;
public int $isonmainpage = 1;
Random random = new Random();
public int $cantafford = 0;
public double $employertimer;
public double $employercounter;

public double $employeeupgrade1earnings;
public double $employeeupgrade1cost = 1;
public double $employeeupgrade1level;


public double $employerupgrade1level;
public double $employerupgrade1earnings;
public double $employerupgrade1cost = 1;
public double $allupgrades;
public String version = "0.0.1";
;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    SharedPreferences sharedpreferences = getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    SharedPreferences.Editor editor = sharedpreferences.edit();
    hasPlayed = sharedpreferences.getInt("hasPlayed", 1);
    sharedpreferences.getAll();

    if (hasPlayed == 1){
        $money = Double.valueOf(sharedpreferences.getString("money", (Double.toString($money))));
        $employercounter = Double.valueOf(sharedpreferences.getString("employercounter", (Double.toString($employercounter))));
        $employerupgrade1earnings = Double.valueOf(sharedpreferences.getString("employerupgrade1earnings", (Double.toString($employerupgrade1earnings))));
        $employerupgrade1level = Double.valueOf(sharedpreferences.getString("employerupgrade1level", (Double.toString($employerupgrade1level))));
        $employerupgrade1cost = Double.valueOf(sharedpreferences.getString("employerupgrade1cost", (Double.toString($employerupgrade1cost))));
        $employeeupgrade1level = Double.valueOf(sharedpreferences.getString("employeeupgrade1level", (Double.toString($employeeupgrade1level))));
        $employeeupgrade1earnings = Double.valueOf(sharedpreferences.getString("employeeupgrade1earnings", (Double.toString($employeeupgrade1earnings))));
        $employeeupgrade1cost = Double.valueOf(sharedpreferences.getString("employeeupgrade1cost", (Double.toString($employeeupgrade1cost))));
    }
    if (hasPlayed == 0) {
        hasPlayed = 1;
        editor.putInt("hasPlayed", 1);
        editor.commit();
    }
    updatemoney();
    timer();

}

And here's my onStop/onPause (when I save the data)

@Override
protected void onPause() {
    super.onPause();
    SharedPreferences sharedpreferences = getPreferences(MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedpreferences.edit();
    editor.putString("money", (Double.toString($money)));
    editor.putString("employercounter", (Double.toString($employercounter)));
    editor.putString("employerupgrade1earnings", (Double.toString($employerupgrade1earnings )));
    editor.putString("employerupgrade1level", (Double.toString($employerupgrade1level)));
    editor.putString("employerupgrade1cost", (Double.toString($employerupgrade1cost)));
    editor.putString("employeeupgrade1level", (Double.toString($employeeupgrade1level)));
    editor.putString("employeeupgrade1earnings", (Double.toString($employeeupgrade1earnings)));
    editor.putString("employeeupgrade1cost", (Double.toString($employeeupgrade1cost)));
    editor.commit();
}

@Override
protected void onStop() {
    super.onStop();
    SharedPreferences sharedpreferences = getPreferences(MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedpreferences.edit();
    editor.putString("money", (Double.toString($money)));
    editor.putString("employercounter", (Double.toString($employercounter)));
    editor.putString("employerupgrade1earnings", (Double.toString($employerupgrade1earnings )));
    editor.putString("employerupgrade1level", (Double.toString($employerupgrade1level)));
    editor.putString("employerupgrade1cost", (Double.toString($employerupgrade1cost)));
    editor.putString("employeeupgrade1level", (Double.toString($employeeupgrade1level)));
    editor.putString("employeeupgrade1earnings", (Double.toString($employeeupgrade1earnings)));
    editor.putString("employeeupgrade1cost", (Double.toString($employeeupgrade1cost)));
    editor.commit();
}

edit: im never going to learn why i'm being downvoted if i'm not told why i'm being downvoted. thanks

Answer 1

Replace

SharedPreferences savefile = getPreferences(MODE_PRIVATE);

with

SharedPreferences  sharedpreferences = getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);

and follow this link

Answer 2

我想这应该是因为这个hasplayed和hasPlayed ，关键应区分大小写

savefile.getInt("hasplayed", 0);

editor.putInt("hasPlayed", 1);