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QuizApp 4.1
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result);
TextView resultLabel = findViewById(R.id.resultLabel);
TextView totalScoreLabel = findViewById(R.id.totalScoreLabel);
// 正解数を取得
int score = getIntent().getIntExtra("RIGHT_ANSWER_COUNT", 0);
// トータルスコアの読み出し
SharedPreferences prefs = getSharedPreferences("quizApp", MODE_PRIVATE);
int totalScore = prefs.getInt("totalScore", 0);
// トータルスコアに今回のスコアを加算
totalScore += score;
// TextViewに表示する
resultLabel.setText(getString(R.string.result_score, score));
totalScoreLabel.setText(getString(R.string.result_total_score, totalScore));
// トータルスコアを保存
SharedPreferences.Editor editor = prefs.edit();
editor.putInt("totalScore", totalScore);
editor.apply();
}
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