Android WebViewClient 属性 中的 "isForMainFrame" 请求是什么意思？
What is "isForMainFrame" request in Android WebViewClient property meaning?
isForMainFrame 是什么意思 (android-21)？
whether the request was made for the main frame. Will be false for iframes, for example.
不清楚，因为它下面的日志 returns false 用于主机请求。
和android-19中的isMainFrame一样吗？
对于 "google.com"（根据我的语言环境立即重定向到 "google.ru"）我得到以下 android-19 的日志：
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=true for http://www.google.com/
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://ssl.gstatic.com/gb/images/qi2_00ed8ca1.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/branding/googlelogo/2x/googlelogo_color_160x56dp.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/nav_logo242_hr.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.gstatic.com/og/_/js/k=og.mob.en_US.p8Smm-clGwA.O/rt=j/m=md/exm=mih,mab,meb/d=1/ed=1/rs=AA2YrTsvrSisM1LDBap6j28t9xwsb4oJBg
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sx,c,sb_mob,bct,cdos,elog,hsm,jsa,mbsf,r,qsm,d,csi/am=AIG2TGBhALBBYgn5FBACKAE/rt=j/d=1/t=zcms/rs=ACT90oHeC71MlDyUp6g3gXk23kbF4ygyvw
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sy7,sy13,em2,sy12,aa,abd,sy55,sy54,sy53,sy57,em10,async,sy280,sy320,sy319,dvl,sy425,foot,ipv6,shm/am=AIG2TGBhALBBYgn5FBACKAE/rt=j/d=0/t=zcms/rs=ACT90oHeC71MlDyUp6g3gXk23kbF4ygyvw
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/branding/product/ico/googleg_lodp.ico
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/nav_logo242.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/gen_204?v=3&s=mobilewebhp&atyp=csi&ei=7kT-V-OSNcOfsgHEgL2gAw&imc=1&imn=1&imp=1&adh=&xjs=init.251.13.sb_mob.199.dvl.23.c.8.async.6.jsa.5&ima=1&rt=xjsls.161,prt.164,iml.716,dcl.574,xjses.1086,xjsee.1535,xjs.1536,ol.1873,aft.716,wsrt.1937,cst.728,dnst.1,rqst.219,rspt.36,sslt.721,rqstt.1645,unt.862,cstt.916,dit.2155
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.gstatic.com/og/_/ss/k=og.mob.-1m1er1bg50qhy.L.W.O/m=md/excm=mih,mab,meb/d=1/ed=1/rs=AA2YrTuS2ZHRm9kj5jyes52ZN2R47G8RQQ
对于 android-21 我可以看到：
1725-1851 D/IoThreadClientInvocationHandler: 21: true for http://www.google.com/
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/branding/googlelogo/2x/googlelogo_color_160x56dp.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://ssl.gstatic.com/gb/images/qi2_00ed8ca1.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/nav_logo242_hr.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.gstatic.com/og/_/js/k=og.mob.en_US.p8Smm-clGwA.O/rt=j/m=md/exm=mih,mab,meb/d=1/ed=1/rs=AA2YrTsvrSisM1LDBap6j28t9xwsb4oJBg
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sx,c,sb_mob,bct,cdos,elog,hsm,jsa,mbsf,r,qsm,d,csi/am=AIG2ZGBhALBBYgn5FBACKAE/rt=j/d=1/t=zcms/rs=ACT90oGqh459Mg-Bg7N2WXgWV78Tvd2J1A
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sy7,sy13,em2,sy12,aa,abd,sy55,sy54,sy53,sy57,em10,async,sy280,sy320,sy319,dvl,sy425,foot,ipv6,shm,udlg/am=AIG2ZGBhALBBYgn5FBACKAE/rt=j/d=0/t=zcms/rs=ACT90oGqh459Mg-Bg7N2WXgWV78Tvd2J1A
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/nav_logo242.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/gen_204?v=3&s=mobilewebhp&atyp=csi&ei=Qkb-V4-7AoOisAGdzq24Bg&imc=1&imn=1&imp=1&adh=&xjs=init.181.13.sb_mob.151.c.12.mbsf.4.jsa.4.async.4&conn=unknown&ima=1&rt=xjsls.146,prt.155,iml.4995,dcl.4791,xjses.5597,xjsee.6069,xjs.6070,ol.6264,aft.4995,wsrt.1045,cst.155,dnst.0,rqst.127,rspt.9,sslt.147,rqstt.837,unt.671,cstt.681,dit.1305
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.gstatic.com/og/_/ss/k=og.mob.-1m1er1bg50qhy.L.W.O/m=md/excm=mih,mab,meb/d=1/ed=1/rs=AA2YrTuS2ZHRm9kj5jyes52ZN2R47G8RQQ
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/branding/product/1x/gsa_shadowed_144dp.png
我希望看到所有资源的 true，因为它是来自位于 "google.ru" 的主（和单个）框架的资源。我错了吗？
isForMainFrame方法其实是继承自WebKit。例如，这里是 Apple docs
因此，这里的MainFrame指的是WebKit的概念，也就是根WebFrame。
Behind the scenes, WebFrame objects encapsulate the content contained in a single frame element. A hierarchy of WebFrame objects is used to model an entire webpage where the root is called the main frame
您可以在 the docs
中找到更多相关信息
根据这个定义，只有初始请求是针对 "main frame" 的，其余都是针对子 WebFrames 的请求。
isForMainFrame 是什么意思 (android-21)？
whether the request was made for the main frame. Will be false for iframes, for example.
不清楚，因为它下面的日志 returns false 用于主机请求。
和android-19中的isMainFrame一样吗？
对于 "google.com"（根据我的语言环境立即重定向到 "google.ru"）我得到以下 android-19 的日志：
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=true for http://www.google.com/
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://ssl.gstatic.com/gb/images/qi2_00ed8ca1.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/branding/googlelogo/2x/googlelogo_color_160x56dp.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/nav_logo242_hr.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.gstatic.com/og/_/js/k=og.mob.en_US.p8Smm-clGwA.O/rt=j/m=md/exm=mih,mab,meb/d=1/ed=1/rs=AA2YrTsvrSisM1LDBap6j28t9xwsb4oJBg
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sx,c,sb_mob,bct,cdos,elog,hsm,jsa,mbsf,r,qsm,d,csi/am=AIG2TGBhALBBYgn5FBACKAE/rt=j/d=1/t=zcms/rs=ACT90oHeC71MlDyUp6g3gXk23kbF4ygyvw
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sy7,sy13,em2,sy12,aa,abd,sy55,sy54,sy53,sy57,em10,async,sy280,sy320,sy319,dvl,sy425,foot,ipv6,shm/am=AIG2TGBhALBBYgn5FBACKAE/rt=j/d=0/t=zcms/rs=ACT90oHeC71MlDyUp6g3gXk23kbF4ygyvw
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/branding/product/ico/googleg_lodp.ico
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/images/nav_logo242.png
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.google.ru/gen_204?v=3&s=mobilewebhp&atyp=csi&ei=7kT-V-OSNcOfsgHEgL2gAw&imc=1&imn=1&imp=1&adh=&xjs=init.251.13.sb_mob.199.dvl.23.c.8.async.6.jsa.5&ima=1&rt=xjsls.161,prt.164,iml.716,dcl.574,xjses.1086,xjsee.1535,xjs.1536,ol.1873,aft.716,wsrt.1937,cst.728,dnst.1,rqst.219,rspt.36,sslt.721,rqstt.1645,unt.862,cstt.916,dit.2155
3068-3088 D/IoThreadClientInvocationHandler: isMainFrame=false for https://www.gstatic.com/og/_/ss/k=og.mob.-1m1er1bg50qhy.L.W.O/m=md/excm=mih,mab,meb/d=1/ed=1/rs=AA2YrTuS2ZHRm9kj5jyes52ZN2R47G8RQQ
对于 android-21 我可以看到：
1725-1851 D/IoThreadClientInvocationHandler: 21: true for http://www.google.com/
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/branding/googlelogo/2x/googlelogo_color_160x56dp.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://ssl.gstatic.com/gb/images/qi2_00ed8ca1.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/nav_logo242_hr.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.gstatic.com/og/_/js/k=og.mob.en_US.p8Smm-clGwA.O/rt=j/m=md/exm=mih,mab,meb/d=1/ed=1/rs=AA2YrTsvrSisM1LDBap6j28t9xwsb4oJBg
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sx,c,sb_mob,bct,cdos,elog,hsm,jsa,mbsf,r,qsm,d,csi/am=AIG2ZGBhALBBYgn5FBACKAE/rt=j/d=1/t=zcms/rs=ACT90oGqh459Mg-Bg7N2WXgWV78Tvd2J1A
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/xjs/_/js/k=xjs.qs.ru.WqzjCT34eOw.O/m=sy7,sy13,em2,sy12,aa,abd,sy55,sy54,sy53,sy57,em10,async,sy280,sy320,sy319,dvl,sy425,foot,ipv6,shm,udlg/am=AIG2ZGBhALBBYgn5FBACKAE/rt=j/d=0/t=zcms/rs=ACT90oGqh459Mg-Bg7N2WXgWV78Tvd2J1A
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/nav_logo242.png
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/gen_204?v=3&s=mobilewebhp&atyp=csi&ei=Qkb-V4-7AoOisAGdzq24Bg&imc=1&imn=1&imp=1&adh=&xjs=init.181.13.sb_mob.151.c.12.mbsf.4.jsa.4.async.4&conn=unknown&ima=1&rt=xjsls.146,prt.155,iml.4995,dcl.4791,xjses.5597,xjsee.6069,xjs.6070,ol.6264,aft.4995,wsrt.1045,cst.155,dnst.0,rqst.127,rspt.9,sslt.147,rqstt.837,unt.671,cstt.681,dit.1305
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.gstatic.com/og/_/ss/k=og.mob.-1m1er1bg50qhy.L.W.O/m=md/excm=mih,mab,meb/d=1/ed=1/rs=AA2YrTuS2ZHRm9kj5jyes52ZN2R47G8RQQ
1725-1851 D/IoThreadClientInvocationHandler: 21: false for https://www.google.ru/images/branding/product/1x/gsa_shadowed_144dp.png
我希望看到所有资源的 true，因为它是来自位于 "google.ru" 的主（和单个）框架的资源。我错了吗？
isForMainFrame方法其实是继承自WebKit。例如，这里是 Apple docs
因此，这里的MainFrame指的是WebKit的概念，也就是根WebFrame。
Behind the scenes, WebFrame objects encapsulate the content contained in a single frame element. A hierarchy of WebFrame objects is used to model an entire webpage where the root is called the main frame
您可以在 the docs
中找到更多相关信息根据这个定义，只有初始请求是针对 "main frame" 的，其余都是针对子 WebFrames 的请求。