网上添加的混淆过滤规则试了好多中都不能用，后来升级okhttp的版本至
implementation 'com.squareup.okhttp3:okhttp:3.14.0'
【android okhttp3 3.10.0 开启混淆报错】混淆规则：
#-------------- okhttp3 start------------- # OkHttp3 # https://github.com/square/okhttp # okhttp -keepattributes Signature -keepattributes *Annotation* -keep class com.squareup.okhttp.* { *; } -keep interface com.squareup.okhttp.** { *; } -dontwarn com.squareup.okhttp.**# okhttp 3 -keepattributes Signature -keepattributes *Annotation* -keep class okhttp3.** { *; } -keep interface okhttp3.** { *; } -dontwarn okhttp3.**# Okio -dontwarn com.squareup.** -dontwarn okio.** -keep public class org.codehaus.* { *; } -keep public class java.nio.* { *; } #----------okhttp end--------------
