extends

I want write code once and use in different activities. I have created a Base Activity class for that . Also the header of all the layouts in different activities are same. I have done that with the help of the <include layout > tag. Now the Problem is my BaseActivity code is not running. I am trying this first time se don't have much idea about that. 1.)The BaseActivity code is below : package com.waheguru.app; import android.R.integer; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener;

I am extending the change_list.html and I in need of outputting a variable defined in settings.py how do I pass that particular variable into the custom admin template context? class MyModelAdmin(admin.ModelAdmin): ... def changelist_view(self, request, extra_context=None): extra_context = extra_context or {} extra_context['some_var'] = 'This is what I want to show' return super(MyModelAdmin, self).changelist_view(request, extra_context=extra_context) See: https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.changelist_view 来源： https://stackoverflow.com

I want to save my time and to reuse common code across classes which extends PIXI classes (a 2d webGl renderer library). Object Interfaces: module Game.Core { export interface IObject {} export interface IManagedObject extends IObject{ getKeyInManager(key: string): string; setKeyInManager(key: string): IObject; } } My issue is that the code inside getKeyInManager and setKeyInManager will not change and I want to reuse it, not to duplicate it, here is the implementation: export class ObjectThatShouldAlsoBeExtended{ private _keyInManager: string; public getKeyInManager(key: string): string{

In my TypeScript project, I use DefinitelyTyped definitions for external js dependencies. Sometimes it might happen that these definitions are outdated. It might also happen than some libraries can add new methods at runtime, like express-validator in which you can define custom validator functions. Therefore I would like to extend those .d.ts definitions adding new methods and/or properties. So if I have my DefinitelyTyped defininiton in express-validator.d.ts : declare module ExpressValidator { export interface Validator { is(): Validator; not(): Validator; isEmail(): Validator; ... } } how