如何从任何地方获得包的名字吗? [英] How to get package name from anywhere?
问题描述
我知道<一的可用性href="http://developer.android.com/reference/android/content/Context.html#getApplicationContext%28%29">Context.getApplicationContext()和<一href="http://developer.android.com/reference/android/view/View.html#getContext%28%29">View.getContext(),通过它我可以真正称之为<一href="http://developer.android.com/reference/android/content/Context.html#getPackageName%28%29">Context.getPackageName()检索应用程序的包名称
I am aware of the availability of Context.getApplicationContext() and View.getContext(), through which I can actually call Context.getPackageName() to retrieve the package name of an application.
他们的工作,如果我从一个方法调用到一个查看
或活动
对象是可用的,但如果我想从一个完全独立的阶级,没有查看
或活动
查找软件包名称,有没有办法做到这(直接或间接)?
They work if I call from a method to which a View
or an Activity
object is available, but if I want to find the package name from a totally independent class with no View
or Activity
, is there a way to do that (directly or indirectly)?
推荐答案
这是想法是在你的主要活动一个静态变量,实例化是包名。然后,只需引用该变量。
An idea is to have a static variable in your main activity, instantiated to be the package name. Then just reference that variable.
您必须初始化它的主要活动的的onCreate()
方法:
You will have to initialize it in the main activity's onCreate()
method:
全球的类:
public static String PACKAGE_NAME;
然后..
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
PACKAGE_NAME = getApplicationContext().getPackageName();
}
您可以然后通过 Main.PACKAGE_NAME
访问它。
You can then access it via Main.PACKAGE_NAME
.
这篇关于如何从任何地方获得包的名字吗?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!