android - 将包发送到另一个 Activity

Question

我正在尝试将一个包从一个 Activity 发送到另一个 Activity 。当我在接收 Activity 中加载包时，所有信息似乎都是空的。这是一些代码:

Activity A(发送包):

public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
                Intent intent = new Intent(HotelsActivity.this, EditHotelActivity.class);
                Bundle b = new Bundle();
                b = toBundle(app.getHotelList().get(position));
                intent.putExtra("Hotel Bundle", b);
                startActivity(intent);
            }

            });

toBundle 方法只是将对象中的字符串添加到包中。我已将日志记录语句放入此方法中，并且包肯定不为空。

Activity B(加载包):

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView (R.layout.edit_hotel);
        setTitleFromActivityLabel (R.id.title_text);

        // Retrieve sent bundle
        Bundle b = this.getIntent().getExtras();
        String hotelName = b.getString("hotelname");
        if (hotelName == null)
            MyLog.i(TAG, "IT IS NULL");
    }

loggin 语句然后打印“IT IS NULL”，因为出于某种原因 hotelName 为 null，但这肯定是正确的键。

有人可以帮忙吗？

toBundle 方法:

public Bundle toBundle(HotelItem hotel) {
        Bundle b = new Bundle();
        b.putString("hotelname",hotel.getHotelName());
        b.putString("hotel address", hotel.getHotelAddress());
        b.putString("hotel telephone", hotel.getHotelTelephone());
        b.putString("hotel website", hotel.getHotelWebsite());


        return b;
    }

Answer 1

Bundle b = new Bundle();
b = toBundle(app.getHotelList().get(position));
intent.putExtras(b);
startActivity(intent);




//In your next activity
//Create another Bundle object and get the string by name

Bundle bundle = getIntent().getExtras();
if(bundle!=null){
 String hotelName = bundle.getString("hotelname");
}