Android Proguard“找不到引用”

Question

我想生成一个签名的apk。但我达到了 64k 方法的限制，所以我搜索了一些解决方案，其中之一是使用 proguard。我像这样编辑了 build.gradle：

 buildTypes {

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

    }

当我尝试生成签名的 apk 时，我收到很多警告：

Warning:com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar$2: can't find referenced method 'android.widget.TextView access$000(com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar)' in program class com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar
Warning:com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar$2: can't find enclosing method 'void setTextProgressAlign()' in program class com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar
Warning:com.github.mikephil.charting.data.realm.base.RealmBarLineScatterCandleBubbleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmBarLineScatterCandleBubbleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmBaseDataSet: can't find referenced class io.realm.Sort
Warning:com.github.mikephil.charting.data.realm.base.RealmBaseDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmBaseDataSet: can't find referenced class io.realm.Sort
Warning:com.github.mikephil.charting.data.realm.base.RealmBaseDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmBaseDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmLineRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmLineScatterCandleRadarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmLineScatterCandleRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.base.RealmUtils: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmList
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmList
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmList
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmList
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmList
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmBubbleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmCandleDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmLineDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmPieDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmRadarDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterData: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterData: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.DynamicRealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmObject
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmResults
Warning:com.github.mikephil.charting.data.realm.implementation.RealmScatterDataSet: can't find referenced class io.realm.RealmObject
Warning:there were 283 unresolved references to classes or interfaces.
Warning:there were 2 unresolved references to program class members.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForFreeRelease'.
> java.io.IOException: Please correct the above warnings first.

所以问题似乎是我实现的存储库。我读到我必须配置 proguard-rules.pro 文件，但我以前从未使用过它，也不知道其语法。我该如何解决这个问题？

编辑 依赖关系：

compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:design:24.2.1'
    compile 'com.android.support:recyclerview-v7:24.2.1'
    compile 'com.android.support:cardview-v7:24.2.1'
    compile 'com.bignerdranch.android:expandablerecyclerview:2.1.1'
    compile 'com.github.lzyzsd:circleprogress:1.1.0@aar'
    compile 'com.github.PhilJay:MPAndroidChart:v2.2.3'
    compile 'net.qiujuer.genius:ui:1.5.2'
    compile 'com.akexorcist:RoundCornerProgressBar:2.0.3'
    compile 'com.rengwuxian.materialedittext:library:2.1.4'
    compile 'com.github.medyo:fancybuttons:1.8.1'
    compile 'com.google.android.gms:play-services:9.6.1'
    compile 'com.github.sundeepk:compact-calendar-view:1.9.3'

Answer 1

有两个有问题的库：

圆角进度条

MPAndroid图表

第一个问题是班级com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar。这里有一个解决方案可以通过添加到 Proguard 来克服这个问题：

-dontwarn com.akexorcist.roundcornerprogressbar.TextRoundCornerProgressBar

第二个问题可以简单地通过向 Proguard 添加两个语句来解决，库的作者在这里清楚地描述了这一点：

-keep class com.github.mikephil.charting.** { *; }
-dontwarn io.realm.**

您的 Proguard 文件应该包含这些行，并且问题应该消失。