java - 根据设置android中的用户选择设置ImageView

Question

我正在尝试制作一个应用程序，该应用程序将根据用户在我的应用程序设置中选择 ListPreference 来更改图像。有两张图片，一个森林和一个海洋。When Ocean is selected the value sent to the string is 1, and 2 for the forest, but when I run this code it throws an error saying "Source not found." 有什么建议吗？

 public void showUserSettings() {
     String name;
     String pic;
     SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
     name = sharedPrefs.getString("your_name", "NULL");
     pic = sharedPrefs.getString("pic_what", "for");
     int whatPic = Integer.parseInt(pic);
     TextView tvName = (TextView) findViewById(R.id.tvName);
     tvName.setText(name);
     if(whatPic==1) {
              ImageView img = (ImageView) findViewById(R.id.iView);
             img.setImageResource(R.drawable.ocean);
     }else if(whatPic==2); {
         ImageView img = (ImageView) findViewById(R.id.iView);
         img.setImageResource(R.drawable.forest);    
     }

 }

}