当用户从后台进入我的应用程序时，该应用程序将被冻结。 以下日志并没有告诉我任何关于这个问题的信息，但我什么也得不到。
过了一会儿ANR出现了。 附加信息：我正在使用smack连接到xmpp服务器。
05-19 12:51:53.733 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:51:53.733 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:51:53.743 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:51:55.956 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:51:55.966 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:51:55.966 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:51:55.976 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:51:56.296 23626-23641/com.es.ric I/art: Background sticky concurrent mark sweep GC freed 64498(4MB) AllocSpace objects, 158(2MB) LOS objects, 23% free, 24MB/31MB, paused 7.233ms total 72.058ms
05-19 12:51:58.308 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:51:58.308 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:51:58.318 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:51:58.318 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:00.531 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:00.531 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:00.531 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:00.531 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:02.733 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:02.743 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:02.763 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:02.763 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:05.005 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:05.005 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:05.005 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:05.015 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:06.247 23626-23636/com.es.ric W/art: Suspending all threads took: 14.191ms
05-19 12:52:07.228 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:07.228 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:07.228 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:07.228 23626-4086/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
05-19 12:52:09.460 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet+,hn 11(0x39322e35342e32),sn(),hints(known),family 0,flags 4
05-19 12:52:09.460 23626-4094/com.es.ric D/libc: [NET] android_getaddrinfofornet-, SUCCESS
这是traces.txt文件 https://gist.github.com/rchampa/7c085e8f04bef2bc40ee83501d641344