环信easeui集成 、登录环信之后， 退出应用anr

就按照文档 先导入easeui   ， 关联model, 设置manifest，application初始化， 然后在登录界面登录环信。登录成功之后，退出应用就报anr。请问有遇到的吗，是如何解决的。环信3.4.1。（项目中集成了 极光推送、网宿直播）
 
找了一下午   定位到这一句
System.exit(0);
退出应用， 暂不知什么原因

ANR in com.dotlearnedu.education (com.dotlearnedu.education/com.android.yuexun.android_classroom.ui.activity.MainActivity)
    PID: 9046
    Reason: Input dispatching timed out (com.dotlearnedu.education/com.android.yuexun.android_classroom.ui.activity.MainActivity, Waiting to send key event because the focused window has not finished processing all of the input events that were previously delivered to it.  Outbound queue length: 0.  Wait queue length: 1.)
    Load: 5.65 / 5.61 / 5.46
    CPU usage from 41871ms to 0ms ago:
      12% 17213/system_server: 6.8% user + 5.8% kernel / faults: 14903 minor
      10% 501/surfaceflinger: 4.3% user + 5.8% kernel / faults: 419 minor
      4.4% 430/logd: 0.9% user + 3.4% kernel / faults: 11 minor
      2.1% 26480/com.crypt.lord.service: 1.8% user + 0.3% kernel / faults: 2337 minor
      1.7% 17572/com.android.systemui: 1.2% user + 0.4% kernel / faults: 3029 minor 1 major
      1.4% 1682/com.iflytek.inputmethod: 1.1% user + 0.2% kernel / faults: 634 minor
      1.3% 737/adbd: 0.4% user + 0.9% kernel
      1% 32346/com.cleanmaster.mguard_cn:service: 0.6% user + 0.4% kernel / faults: 5012 minor 3 major
      0.9% 6095/kworker/u16:4: 0% user + 0.9% kernel
      0.8% 29086/kworker/u16:11: 0% user + 0.8% kernel
      0.7% 26362/com.service.usbhelper: 0.3% user + 0.3% kernel / faults: 541 minor
      0.6% 97/system: 0% user + 0.6% kernel
      0.6% 567/sensors.qcom: 0.3% user + 0.2% kernel / faults: 29 minor
      0.6% 32280/mdss_fb0: 0% user + 0.6% kernel
      0.6% 8457/logcat: 0.2% user + 0.3% kernel / faults: 8 minor
      0.6% 740/debuggerd: 0% user + 0.6% kernel / faults: 21 minor
      0.6% 7316/kworker/u16:2: 0% user + 0.6% kernel
      0.5% 8648/com.dotlearnedu.education:mult: 0.4% user + 0% kernel / faults: 4170 minor
      0.5% 29658/debuggerd64: 0.2% user + 0.3% kernel / faults: 1688 minor
      0.5% 5567/kworker/u16:3: 0% user + 0.5% kernel
      0.5% 32292/com.iflytek.inputmethod.assist: 0.2% user + 0.2% kernel / faults: 354 minor
      0.4% 18456/com.miui.home: 0.2% user + 0.1% kernel / faults: 640 minor
      0.4% 331/mmc-cmdqd/0: 0% user + 0.4% kernel
      0.3% 17694/com.miui.whetstone: 0.2% user + 0.1% kernel / faults: 502 minor
      0.3% 449/com.cleanmaster.mguard_cn:worker: 0.2% user + 0% kernel / faults: 830 minor 13 major
      0.3% 443/logcat: 0% user + 0.2% kernel / faults: 6 minor
      0.3% 17935/com.miui.powerkeeper:service: 0.1% user + 0.1% kernel / faults: 170 minor
      0.3% 18616/com.android.phone: 0.1% user + 0.1% kernel / faults: 292 minor
      0.2% 17088/netd: 0% user + 0.2% kernel / faults: 1214 minor
      0.2% 17534/sdcard: 0% user + 0.2% kernel / faults: 23 minor
      0.2% 7/rcu_preempt: 0% user + 0.2% kernel
      0.2% 1//init: 0.1% user + 0% kernel / faults: 100 minor
      0.2% 164/kswapd0: 0% user + 0.2% kernel
      0.2% 18266/mcd: 0.1% user + 0% kernel / faults: 10 minor
      0.1% 39/rcuop/4: 0% user + 0.1% kernel
      0.1% 73/kworker/u16:1: 0% user + 0.1% kernel
      0.1% 389/irq/72-atmel_mx: 0% user + 0.1% kernel
      0.1% 933/msm_irqbalance: 0% user + 0.1% kernel / faults: 4 minor
      0.1% 8135/kworker/7:1: 0% user + 0.1% kernel
      0.1% 10/rcuop/0: 0% user + 0.1% kernel
      0.1% 53/rcuop/6: 0% user + 0.1% kernel
      0.1% 500/servicemanager: 0% user + 0% kernel / faults: 1 minor
      0.1% 18526/com.miui.daemon: 0.1% user + 0% kernel / faults: 129 minor
      0.1% 30854/VosRXThread: 0% user + 0.1% kernel
      0.1% 320/cfinteractive: 0% user + 0.1% kernel
      0.1% 3515/perfd: 0% user + 0.1% kernel / faults: 53 minor
      0.1% 32425/com.tencent.qqlive:push: 0% user + 0% kernel / faults: 1 minor
      0% 25/rcuop/2: 0% user + 0% kernel
      0% 705/jbd2/dm-0-8: 0% user + 0% kernel
      0% 753/ptt_socket_app: 0% user + 0% kernel / faults: 7 minor
      0% 755/thermal-engine: 0% user + 0% kernel / faults: 9 minor
      0% 1471/logcat: 0% user + 0% kernel / faults: 5 minor
      0% 3465/irq/179-408000.: 0% user + 0% kernel
      0% 5595/kworker/0:2: 0% user + 0% kernel
      0% 7402/kworker/4:2: 0% user + 0% kernel
      0% 30860/wpa_supplicant: 0% user + 0% kernel / faults: 9 minor
      0% 31146/com.tencent.mm: 0% user + 0% kernel / faults: 247 minor
      0% 46/rcuop/5: 0% user + 0% kernel
      0% 30852/VosMCThread: 0% user + 0% kerne