Proguard change to remove only the log files from android app

proguard-rules.pro

-dontwarn **
-target 1.7
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose

-optimizations !code/simplification/arithmetic,!code/allocation/variable
-keep class **
-keepclassmembers class *{*;}
-keepattributes *

#This will not remove error log
-assumenosideeffects class android.util.Log {
   #public static boolean isLoggable(java.lang.String, int);
    public static int v(...);
    public static int i(...);
    public static int w(...);
    public static int d(...);
   #public static int e(...);
}




-----------------------------build.gradle ---------------------
buildTypes {

        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

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