使用 Picasso 和 minifyEnabled 时应用程序崩溃 true

Posted 2023-04-15

【中文标题】使用 Picasso 和 minifyEnabled 时应用程序崩溃 true

【英文标题】：App crashing with Picasso and minifyEnabled true

【发布时间】：2017-07-25 13:14:44

【问题描述】：

Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.OkHttpClient
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Cache
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.OkHttpClient
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Request$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.OkHttpClient
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Call
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Response
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.ResponseBody
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Response
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.ResponseBody
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.OkHttpClient
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Cache
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Request$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Response
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Cache
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Request
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Call
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Response
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.ResponseBody
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.OkHttpClient
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.CacheControl
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Request$Builder
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Response
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.ResponseBody
Warning:com.squareup.picasso.OkHttpDownloader: can't find referenced class com.squareup.okhttp.Cache
Warning:there were 52 unresolved references to classes or interfaces.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
Job failed, see logs for details

这是我在尝试构建 release.apk 时遇到的错误。

我尝试通过添加来修复它：

-dontwarn com.squareup.picasso.**

在我的pro guard-rules.pro 文件中。

release.apk 现在可以正确构建，至少表面上是这样。

但是当我在我的手机（或任何手机）上安装该应用程序时，它会在启动时崩溃，我想当它开始使用 Picasso 加载图像时。

请帮我解决这个问题。

我尝试了一些在互联网上找到并建议您的解决方案，它们似乎都可以正确构建，但应用程序仍然不断崩溃。它会依赖于除专业守卫规则之外的其他东西吗？

这就是我的 gradle 的样子：

buildTypes 
    release 
        shrinkResources true
        minifyEnabled true
        proguardFile 'proguard-rules.pro'
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    

【问题讨论】：

github.com/krschultz/android-proguard-snippets/blob/master/…

@cricket_007 谢谢，我也试过这个，也没有运气:(

这至少应该修复毕加索，而不是任何其他图书馆

@cricket_007 没有其他库会发出任何警告。另外，代码必须没问题，因为在调试模式下构建 apk 时它可以工作

试试这些？ github.com/krschultz/android-proguard-snippets/blob/master/…

【参考方案1】：

你似乎还在缩小 OkHTTP

can't find referenced class <b>com.squareup.okhttp</b>

前往Picasso's Github page

-dontwarn com.squareup.okhttp.**

【讨论】：

感谢您的回答。我也尝试使用这个，但没有任何运气。它确实修复了它，因为 apk 是正常生成的。仍然当我安装该应用程序时，它会在启动时崩溃，因为它必须使用 Picasso 加载图像

你能过滤 logcat 的错误而不是警告吗？

您确定在 Gradle 中加载了正确的 proguard 文件吗？

这实际上修复了毕加索错误。应用程序崩溃是因为SearchView 无法加载。我将-keep class android.support.v7.widget.SearchView *; 添加到我的专业守卫规则中，该应用程序运行良好。

这与是否“缩小 OkHTTP”无关。那将是-keep。这里有-dontwarn。 docs 说：“指定不警告未解决的引用和其他重要问题。 […] 忽略警告可能很危险。例如，如果确实需要处理未解析的类或类成员，则处理后的代码将无法正常运行。”但是根据this issue，这些警告确实可以忽略。

【参考方案2】：

在你的 proguard.cfg 中试试这些：

#### -- Picasso --
 -dontwarn com.squareup.picasso.**

 #### -- OkHttp --

 -dontwarn com.squareup.okhttp.internal.**

 #### -- Apache Commons --

 -dontwarn org.apache.commons.logging.** 

【讨论】：

谢谢你的回答，我试试这个

我想你想要keep 而不是dontwarn

没有，它构建正确，但在启动时不断崩溃

@cricket_007 我应该怎么keep？

@Daniele 这个答案所做的就是让警告静音。它不能修复未解决的类

【参考方案3】：

已解决在proguard-rules.pro 中添加这一行：

-dontwarn com.squareup.okhttp.**

【参考方案4】：

在你的应用 gradle 中试试这个

minifyEnabled 假 收缩资源错误

【讨论】：

这个想法不好，你正在尝试禁用Proguard

【参考方案5】：

我的问题是我无法使用 minifyEnabled true 生成签名的 apk，我已通过将以下内容添加到 proguard-rules.pro 文件来修复它：

#for Picasso library
-dontwarn okio.
# JSR 305 annotations are for embedding nullability information.
-dontwarn javax.annotation.**
# A resource is loaded with a relative path so the package of this class must be preserved.
-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase
# Animal Sniffer compileOnly dependency to ensure APIs are compatible with older versions of Java.
-dontwarn org.codehaus.mojo.animal_sniffer.*
# OkHttp platform used only on JVM and when Conscrypt dependency is available.
-dontwarn okhttp3.internal.platform.ConscryptPlatform

如果上述问题仍然存在，您可以使用以下方法：

#for Picasso library
-dontwarn com.squareup.okhttp3.**
-keep class com.squareup.okhttp3.*  *;
-dontwarn okio.
-dontwarn okhttp3.internal.platform.ConscryptPlatform
-dontwarn javax.annotation.Nullable
-dontwarn javax.annotation.ParametersAreNonnullByDefault