StringDefValuesHandler.java 文件源码

@Override
public void process(TypeSpec.Builder typeBuilder, TypeModel typeModel) {
    String valuesStr = "";
    for (String key : getEnumValues(typeModel)) {
        valuesStr += key + ", ";
        typeBuilder.addField(FieldSpec.builder(ClassName.get(String.class), key)
                .addModifiers(Modifier.PUBLIC, Modifier.STATIC, Modifier.FINAL)
                .initializer("$S", key)
                .build());
    }

    AnnotationSpec.Builder retentionAnnotation = AnnotationSpec.builder(ClassName.get(Retention.class)).
            addMember("value", "$T.SOURCE", ClassName.get(RetentionPolicy.class));
    AnnotationSpec.Builder intDefAnnotation = AnnotationSpec.builder(ClassName.get("android.support.annotation", "StringDef"))
            .addMember("value", "{ $L }", valuesStr.substring(0, valuesStr.length() - 2));

    typeBuilder.addType(TypeSpec.annotationBuilder(metaInfo.getClassName() + "Def").
            addModifiers(Modifier.PUBLIC).
            addAnnotation(retentionAnnotation.build()).
            addAnnotation(intDefAnnotation.build()).
            build());
}