Android：如何将 Activity 从 MainActivity 传递给单独的非 Activity class

Question

I am writing an Android application in which I am accessing a shared resource, implemented through extending the Application class to a public class (shared resource). Below is the code containing my shared resource ( ScheduleStorage.java ):

import android.app.Application;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class ScheduleStorage extends Application {
    private Map<String, Match> schedule = new HashMap<String, Match>();

    // Getter
    public Map<String, Match> getSchedule() {
        return schedule;
    }

    // Setter
    public void setSchedule(Map<String, Match> newSchedule) {
        this.schedule = newSchedule;
    }
}

The following line of code accesses the schedule property of ScheduleStorage :

fun getSchedule(): Map<String, Match> {
    return (getApplication() as ScheduleStorage).schedule
}

As you can see, in order to access the ScheduleStorage resource, I need to get the application first. However, when I am passing the Context into another class, when I execute the following line of code:

ScheduleStorage scheduleStorage = context.getApplication().getSchedule();

Cannot resolve method getApplication()

How do I get the Activity in a non-Activity class?

Answer 1

You have to cast view's context to activity which the view is running in

((Activity's name which pass to constructor of view) 
getContext()).getApplication().getSchedule();