Android get application context by reflect.

ReflectApplication.java

import android.content.Context;

import java.lang.reflect.Method;

public class ReflectApplication {

    private static Context CONTEXT;

    private ReflectApplication() {
    }

    public static Context getApplicationContext() {
        if (CONTEXT != null) {
            return CONTEXT;
        } else {
            try {
                Class activityThreadClass = Class.forName("android.app.ActivityThread");
                Method method = activityThreadClass.getMethod("currentApplication");
                CONTEXT = (Context) method.invoke(null);
                return CONTEXT;
            } catch (Exception e) {
                return null;
            }
        }
    }
}

Refer from https://github.com/eleme/UETool/blob/master/uetool-base/src/main/java/me/ele/uetool/base/Application.java