/**
* 得到页面切换Switcher
*
* @return 页面切换Switcher
*/
public CoreSwitcher getSwitcher() {
synchronized (BaseFragment.this) { // 加强保护，保证pageSwitcher 不为null
if (mPageCoreSwitcher == null) {
if (this.mActivity != null && this.mActivity instanceof CoreSwitcher) {
mPageCoreSwitcher = (CoreSwitcher) this.mActivity;
}
if (mPageCoreSwitcher == null) {
BaseActivity topActivity = BaseActivity.getTopActivity();
if (topActivity != null && topActivity instanceof CoreSwitcher) {
mPageCoreSwitcher = (CoreSwitcher) topActivity;
}
}
}
}
return mPageCoreSwitcher;
}
