Android 使用SharedReference保存高分

我正在制作一个游戏，我想保存一个用户的最高分数，所有的都在我的游戏中工作，但问题是，当我退出游戏时，用户的最高分数会自动重新设置，但我想让它显示给所有用户，直到它中断，然后它会更新

退出游戏后显示的对话框：

 private void showGameOverDialog() {





            int previousScore=getHighScore();
            if(playerScore>previousScore){
                saveHighScore();
            }

            //AlertDialog
            //AlertDialog.Builder

            AlertDialog.Builder builder= new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("Exit Game");
            builder.setMessage("Afraid?");
            //Positive, Negative, Neutral
            //Anonymous Inner Type Interface Implementation
            builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    exitGame();

                }
            });
            builder.setNegativeButton("No",

                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            resetGame();
                        }
                    }
            );
            AlertDialog exitDialog=builder.create();
            exitDialog.show();


}

获得高分的方法

 private int getHighScore(){
    SharedPreferences highScore=getSharedPreferences("high",0);
    return highScore.getInt("highScore",0);
}

private void saveHighScore(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0);
    SharedPreferences.Editor writer=sharedPreferences.edit();

    int displayValue=playerScore;
    //Username-Highscore
    writer.putInt("display",displayValue);

    writer.commit();
    display();

}

 private void display(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0 );
    String userString=sharedPreferences.getString("playerName","Nothing found");
    int highScore=sharedPreferences.getInt("display",0);
    username.setText(userString+"-"+highScore);
}

保存高分

 private int getHighScore(){
    SharedPreferences highScore=getSharedPreferences("high",0);
    return highScore.getInt("highScore",0);
}

private void saveHighScore(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0);
    SharedPreferences.Editor writer=sharedPreferences.edit();

    int displayValue=playerScore;
    //Username-Highscore
    writer.putInt("display",displayValue);

    writer.commit();
    display();

}

 private void display(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0 );
    String userString=sharedPreferences.getString("playerName","Nothing found");
    int highScore=sharedPreferences.getInt("display",0);
    username.setText(userString+"-"+highScore);
}

高分

 private int getHighScore(){
    SharedPreferences highScore=getSharedPreferences("high",0);
    return highScore.getInt("highScore",0);
}

private void saveHighScore(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0);
    SharedPreferences.Editor writer=sharedPreferences.edit();

    int displayValue=playerScore;
    //Username-Highscore
    writer.putInt("display",displayValue);

    writer.commit();
    display();

}

 private void display(){

    SharedPreferences sharedPreferences=getSharedPreferences("data",0 );
    String userString=sharedPreferences.getString("playerName","Nothing found");
    int highScore=sharedPreferences.getInt("display",0);
    username.setText(userString+"-"+highScore);
}

用此替换getHighScore（）方法，然后重试。。这可能有用

 private int getHighScore(){
        SharedPreferences highScore=getSharedPreferences("data",0);
        return highScore.getInt("display",0);
    }

试试这个

保存高分：

SharedPreferences preferences = 
PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = preferences.edit();

editor.putInt("myHighScore", --your high score--);
editor.commit();

展示

SharedPreferences preferences = 
PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
int myInt = preferences.getInt("myHighScore", -1);
username.setText("High Score : " + myInt);

除去

SharedPreferences preferences = 
PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = preferences.edit();

editor.remove("myHighScore");

editor.commit();

---

首先，你要在你的应用程序上创建两个共享首选项位置，一个叫做“高”，第二个叫做“数据”，然后你要将高分值保存在一个位置，并尝试从另一个位置获取它。我希望你现在明白了问题所在。 这是一个更好的解决方案示例

private static final String HIGH_PREF_KEY = "high_score";
SharedPreferences sharedPreferences=getSharedPreferences("GAME_SHAREDPREF",0);


puplic void saveHighScore(int score){
SharedPreferences.Editor writer = sharedPreferences.edit();
writer.putInt(HIGH_PREF_KEY,score).commit();
}

puplic int getHighScore(){
return sharedPreferences.getInt(HIGH_PREF_KEY, 0);
}

---

创建具有名称的共享首选项，即“数据”。用“highScore”键设置高分，然后输入你的分数。当您检索时，获得“highScore”并更新

您可以使用，一个用于android共享首选项的包装工具

如果使用此库，请在应用程序中创建共享首选项

Preference.load().using(this).with(PREFERENCE_NAME).prepare();

只需一行即可保存分数

private void saveHighScore(){
    Preference.putInt("highScore", highScore);
}

得分

private int getHighScore(){
    return Preference.getInt("highScore");
}

并使用

private void resetScore() {
    Preference.remove("highScore);
}

显示分数

private void display(){
    int highScore = getHighScore();
    username.setText(userString + "-" + highScore);
}

---

@VishalSharma首选项文件的名称是“data”，您在其中保存高分，因此在检索名称时，应仅使用“data”而不是“high”，请尝试上述解决方案，让我知道这是否有效。@VishalSharma请立即尝试。。。你用来保存和检索高分的关键是不同的，但高分和用户名在我们创建新高分时会发生变化，否则它会显示默认文本视图。我想每次都显示高分。因此，请告诉我如何保存、更新或从共享首选项中删除高分