Android 的65535放法数超限问题解决方案-AS方式、apk解析合并多dex、smali文件问题

• 我们在开发android应用的时候，如果依赖了很多三方库，应该会遇到65535放法数超限的问题，比如使用Android Studio进行构建apk的时候失败了，并报出如下错误日志

  AGPBI: {"kind":"error","text":"Cannot fit requested classes in a single dex file (# methods: 102169 > 65536)","sources":[{}],"tool":"D8"}
  com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
  The number of method references in a .dex file cannot exceed 64K.
  Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html
  	at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:132)
  	at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:119)
  	at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:102)
  	at com.android.build.gradle.internal.tasks.DexMergingTaskRunnable.run(DexMergingTask.kt:445)
  	at com.android.build.gradle.internal.tasks.Workers$ActionFacade.run(Workers.kt:348)
  	at org.gradle.workers.internal.AdapterWorkAction.execute(AdapterWorkAction.java:50)
  	at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:47)
  	at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1$1.create(NoIsolationWorkerFactory.java:65)
  	at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1$1.create(NoIsolationWorkerFactory.java:61)
  	at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:98)
  	at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.execute(NoIsolationWorkerFactory.java:61)
  	at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
  	at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.j