Android，确实会降低应用程序速度

Question

在我的应用程序中，我有很多日志行，例如log.i（），log.e（）和log.d（）。我通过应用程序广泛使用这些日志。

运行应用程序后，如果将设备连接到Eclipse，我可以看到数百行日志。我的问题是这种行为会降低应用程序速度吗？

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更新

感谢弗兰克的建议。我将提出的代码添加到proguard.cfg，然后导出新的APK文件。花了很多时间，但最终生成了新的APK文件。但是，当我在真实设备中测试它时，我仍然可以看到日志。

这是我的proguard.cfg：

# This is a configuration file for ProGuard.
# http://proguard.sourceforge.net/index.html#manual/usage.html
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose
# Optimization is turned off by default. Dex does not like code run
# through the ProGuard optimize and preverify steps (and performs some
# of these optimizations on its own).
-dontoptimize
-dontpreverify
# Note that if you want to enable optimization, you cannot just
# include optimization flags in your own project configuration file;
# instead you will need to point to the
# "proguard-android-optimize.txt" file instead of this one from your
# project.properties file.
-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService
# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
    native <methods>;
}
# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
   void set*(***);
   *** get*();
}
# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}
# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
    public static <fields>;
}
# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version.  We know about them, and they are safe.
-dontwarn android.support.**
# Hesam - Remove all logs
-assumenosideeffects class android.util.Log {
    public static int v(...);
    public static int d(...);
    public static int i(...);
    public static int w(...);
    public static int e(...);
}
#-libraryjars /libs/gcm.jar
#-libraryjars /libs/libGoogleAnalytics.jar
#-libraryjars /libs/twitter4j-core-android-2.2.6.jar
#-libraryjars /libs/universal-image-loader-1.5.4.jar
-dontwarn javax.management.**
-dontwarn java.lang.management.**
-dontwarn org.apache.**
-dontwarn org.slf4j.**
-dontwarn org.json.*
-keep class com.google.** { *; }
-keep class twitter4j.** { *; }
-keep class com.nostra13.** { *; }

Answer 1

答案很明显，是的。

但是有一个解决方案，您可以要求Proguard删除所需的任何级别的日志语句。像这样

将for添加到您的proguard config：

-assumenosideeffects class android.util.Log {
    public static *** d(...);
    public static *** v(...);
    public static *** i(...);
    public static *** w(...);
    public static *** e(...);
    public static *** wtf(...);
    }

这将删除log.d and log.v语句，您可以按照自己的方式展开。