Android   Data Binding 在 library module 中遇到错误及解决办法

android { 
 dataBinding {
  enabled = true
 }
}

public void writeViewBinderInterfaces(boolean isLibrary) {
 ensureDataBinder();
 mDataBinder.writerBaseClasses(isLibrary);
}

public void writerBaseClasses(boolean isLibrary) {
 for (LayoutBinder layoutBinder : mLayoutBinders) {
  try {
   Scope.enter(layoutBinder);
   if (isLibrary || layoutBinder.hasVariations()) {
    String className = layoutBinder.getClassName();
    String canonicalName = layoutBinder.getPackage() + "." + className;
    if (mWrittenClasses.contains(canonicalName)) {
     continue;
    }
    L.d("writing data binder base %s", canonicalName);
    mFileWriter.writeToFile(canonicalName,
      layoutBinder.writeViewBinderBaseClass(isLibrary));
    mWrittenClasses.add(canonicalName);
   }
  } catch (ScopedException ex){
   Scope.defer(ex);
  } finally {
   Scope.exit();
  }
 }
}

public String writeViewBinderBaseClass(boolean forLibrary) {
 ensureWriter();
 return mWriter.writeBaseClass(forLibrary);
}

public fun writeBaseClass(forLibrary : Boolean) : String =
 kcode("package ${layoutBinder.`package`};") {
  Scope.reset()
  nl("import android.databinding.Bindable;")
  nl("import android.databinding.DataBindingUtil;")
  nl("import android.databinding.ViewDataBinding;")
  nl("public abstract class $baseClassName extends ViewDataBinding {")
  layoutBinder.sortedTargets.filter{it.id != null}.forEach {
   tab("public final ${it.interfaceClass} ${it.fieldName};")
  }
  nl("")
  tab("protected $baseClassName(android.databinding.DataBindingComponent bindingComponent, android.view.View root_, int localFieldCount") {
   layoutBinder.sortedTargets.filter{it.id != null}.forEach {
    tab(", ${it.interfaceClass} ${it.constructorParamName}")
   }
  }
  tab(") {") {
   tab("super(bindingComponent, root_, localFieldCount);")
   layoutBinder.sortedTargets.filter{it.id != null}.forEach {
    tab("this.${it.fieldName} = ${it.constructorParamName};")
   }
  }
  tab("}")
  nl("")
  variables.forEach {
   if (it.userDefinedType != null) {
    val type = ModelAnalyzer.getInstance().applyImports(it.userDefinedType, model.imports)
    tab("public abstract void ${it.setterName}($type ${it.readableName});")
   }
  }
  tab("public static $baseClassName inflate(android.view.LayoutInflater inflater, android.view.ViewGroup root, boolean attachToRoot) {") {
   tab("return inflate(inflater, root, attachToRoot, android.databinding.DataBindingUtil.getDefaultComponent());")
  }
  tab("}")
  tab("public static $baseClassName inflate(android.view.LayoutInflater inflater) {") {
   tab("return inflate(inflater, android.databinding.DataBindingUtil.getDefaultComponent());")
  }
  tab("}")
  tab("public static $baseClassName bind(android.view.View view) {") {
   if (forLibrary) {
    tab("return null;")
   } else {
    tab("return bind(view, android.databinding.DataBindingUtil.getDefaultComponent());")
   }
  }
  tab("}")
  tab("public static $baseClassName inflate(android.view.LayoutInflater inflater, android.view.ViewGroup root, boolean attachToRoot, android.databinding.DataBindingComponent bindingComponent) {") {
   if (forLibrary) {
    tab("return null;")
   } else {
    tab("return DataBindingUtil.<$baseClassName>inflate(inflater, ${layoutBinder.modulePackage}.R.layout.${layoutBinder.layoutname}, root, attachToRoot, bindingComponent);")
   }
  }
  tab("}")
  tab("public static $baseClassName inflate(android.view.LayoutInflater inflater, android.databinding.DataBindingComponent bindingComponent) {") {
   if (forLibrary) {
    tab("return null;")
   } else {
    tab("return DataBindingUtil.<$baseClassName>inflate(inflater, ${layoutBinder.modulePackage}.R.layout.${layoutBinder.layoutname}, null, false, bindingComponent);")
   }
  }
  tab("}")
  tab("public static $baseClassName bind(android.view.View view, android.databinding.DataBindingComponent bindingComponent) {") {
   if (forLibrary) {
    tab("return null;")
   } else {
    tab("return ($baseClassName)bind(bindingComponent, view, ${layoutBinder.modulePackage}.R.layout.${layoutBinder.layoutname});")
   }
  }
  tab("}")
  nl("}")
 }.generate()
}