第九章節(jié) ?打造適合電商主界面導(dǎo)航框架 ?入口activity中引導(dǎo)界面結(jié)束 用戶已經(jīng)登陸過@Override public?void?onLauncherFinish(OnLauncherFinishTag?tag)?{ ????switch?(tag)?{ ????????case?SIGNED: ????????????Toast.makeText(this,?"啟動(dòng)結(jié)束，用戶登錄了",?Toast.LENGTH_LONG).show(); ????????????getSupportDelegate().startWithPop(new?EcBottomDelegate());//進(jìn)入主頁 ????????????break; ????????case?NOT_SIGNED://沒有登錄跳到登錄界面 ????????????Toast.makeText(this,?"啟動(dòng)結(jié)束，用戶沒登錄",?Toast.LENGTH_LONG).show(); ????????????getSupportDelegate().startWithPop(new?SignInDelegate()); ????????????break; ????????default: ????????????break; ????} } 這行代碼沒走getSupportDelegate().startWithPop(new?EcBottomDelegate());//進(jìn)入主頁 上一行的吐司是出來了??但是跳轉(zhuǎn)到主頁卻顯示空白?報(bào)錯(cuò) E/Fragmentation:?LauncherDelegate's?FragmentManager?is?null,??Please?check?if?LauncherDelegate?is?destroyed!