fresco混淆问题

1.debug包下没问题,release包就崩溃
原因是因为没有混淆

参考文章:https://pagespeed.v2ex.com/t/440528
https://www.fresco-cn.org/docs/proguard.html

解决方案:
添加混淆:

#fresco
# Keep our interfaces so they can be used by other ProGuard rules.
# See http://sourceforge.net/p/proguard/bugs/466/
-keep,allowobfuscation @interface com.facebook.common.internal.DoNotStrip
-keep,allowobfuscation @interface com.facebook.soloader.DoNotOptimize

# Do not strip any method/class that is annotated with @DoNotStrip
-keep @com.facebook.common.internal.DoNotStrip class *
-keepclassmembers class * {
    @com.facebook.common.internal.DoNotStrip *;
}

# Do not strip any method/class that is annotated with @DoNotOptimize
-keep @com.facebook.soloader.DoNotOptimize class *
-keepclassmembers class * {
    @com.facebook.soloader.DoNotOptimize *;
}

# Keep native methods
-keepclassmembers class * {
    native <methods>;
}

-dontwarn okio.**
-dontwarn com.squareup.okhttp.**
-dontwarn okhttp3.**
-dontwarn javax.annotation.**
-dontwarn com.android.volley.toolbox.**
-dontwarn com.facebook.infer.**
#fresco end