android 如果用户没有登录，就跳到登录页面应该这个逻辑应该在activity的什么地方实现比较好？

Question

android如果用户没有登录，就跳到登录页面应该这个逻辑应该在activity的什么地方实现比较好？

Answer 1

两种处理方式吧：@ShawnXiaFei所说的写到BaseActivity里publicclassBaseActivityextendsAppCompatActivity{publicbooleanacquireAuthorization(){if(!isAuthorized()){if(!onAcquireAuthorization()){finish();returnfalse;}}returntrue;}publicbooleanisAuthorized(){returntrue;}publicbooleanonAcquireAuthorization(){returnfalse;}}publicclassAppActivityextendsBaseActivity{@OverridepublicbooleanisAuthorized(){//TODOreturnsuper.isAuthorized();}@OverridepublicbooleanonAcquireAuthorization(){//TODOreturnsuper.onAcquireAuthorization();}}publicclassMainActivityextendsAppActivity{@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);if(acquireAuthorization()){//TODO...}}}

Answer 2

1、添加启动页，启动页上做判断，登录了就调到主页，没登录就跳登录页。2、主页onCreate时判断，没登录直接跳登录页，同时finish主页。