源码位置：frameworks/base/core/java/com/android/internal/os/BinderInternal.java

方法

• getContextObject

  156     /**
  157      * Return the global "context object" of the system.  This is usually
  158      * an implementation of IServiceManager, which you can use to find
  159      * other services.
  160      */
  161     @UnsupportedAppUsage
  162     public static final native IBinder getContextObject();

  native实现见：http://xinyiworld.top/wordpress_it/?p=14428