预期 Android Studio 首选项 Editor.putString 标识符 [重复]

Question

在下面的代码中获取 - 无法解析符号“putString”“putInt”“commit”。请帮助。

      public class Alpha extends Activity {

      public static final String GAME_PREFERENCES = "GamePrefs";
      SharedPreferences settings =getSharedPreferences(GAME_PREFERENCES,MODE_PRIVATE);

      SharedPreferences.Editor prefEditor = settings.edit();
      prefEditor.putString("Gama x","Blue Spec");
      prefEditor.putInt("Wave",292);
      prefEditor.commit();


 }

Answer 1

在开始随机编码之前，先看看一些 android 教程，例如 this is the best在我看来。

之后就可以开始编码了。

顺便说一句，解决方案正在“onCreate”方法中移动它：

public class Alpha extends Activity {
  public static final String GAME_PREFERENCES = "GamePrefs";
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

      SharedPreferences settings =getSharedPreferences(GAME_PREFERENCES,MODE_PRIVATE);

      SharedPreferences.Editor prefEditor = settings.edit();
      prefEditor.putString("Gama x","Blue Spec");
      prefEditor.putInt("Wave",292);
      prefEditor.commit();
  }
}