[英]How do I pass back a date to an Activity from a DialogFragment / DatePickerFragment?
我知道如何使用Intent做到這一點,但是我該怎么做...。
這是我必須打開DatePickerFragment
的代碼:
DialogFragment newFragment = new DatePickerFragment();
Bundle bundle = new Bundle();
bundle.putString("date", (String) itemDict.get(Helper.convertKeyString(name, false)));
newFragment.setArguments(bundle);
newFragment.show(getFragmentManager(), "datePicker");
打開后,如何將選擇的日期返回Activity
?
您可以創建interface
,將其傳遞給DatePickerFragment
(在構造函數中),然后在關閉對話框之前調用方法。
例如:
您的界面:
public interface OnDatePicked{
void onDatePicked();
}
您的活動:
public YourActivity implements OnDatePicked{
//your Activity
}
和您的DatePickerFragment:
public class DatePickerFragment { //change Object to required type
private OnDatePicked listener;
public DatePickerFragment(OnDatePickedlistener){
this.listener=listener;
}
//required methods
protected void method(Object o){
//your stuff
listener.onDatePicked();
}
}
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