android7.0及以上系统往system目录复制证书文件

adb push 269953fb.0 /sdcard/tmp/269953fb.0
adb root
adb remount
adb shell
su
mv /sdcard/tmp/269953fb.0 /system/etc/security/cacerts/269953fb.0
cd /system/etc/security/cacerts
chmod 644 269953fb.0

如果是android studio自带的模拟器则需要通过emulater.exe -writable-system -avd 5.1_WVGA_API_28 -no-snapshot-load -qemu这种方式启动模拟器

原文：https://www.cnblogs.com/m00219907/p/13884093.html