我有一个fragment，假设用Picasso创建的Imageview填充背景。publicclassFragment1extendsSherlockFragment{@OverridepublicViewonCreateView(LayoutInflaterinflater,ViewGroupcontainer,BundlesavedInstanceState){Contextc=getActivity().getApplicationContext();ViewmyFragmentView=inflater.inflate(R.layout.home,container,false

我在fragment中的View上调用KeyEvent.KEYCODE_BACK，但由于某些奇怪的原因，它被调用了两次。我不知道为什么会这样。这是我的fragment:@OverridepublicViewonCreateView(LayoutInflaterinflater,ViewGroupcontainer,BundlesavedInstanceState){myFragmentView=inflater.inflate(R.layout.folders,container,false);myFragmentView.setFocusableInTouchMode(true);m