如何在Android中使用Javapoet生成StringDef
如何在Javapoet中生成@StringDef枚举?如何在Android中使用Javapoet生成StringDef,android,annotation-processing,javapoet,Android,Annotation Processing,Javapoet,如何在Javapoet中生成@StringDef枚举? 注释仅适用于方法或类型构建器,StringDef是三条注释语句,但两者都没有 使用JavaPoter 1.8.0+可以使用如下代码: private void createEnumStringDef(TypeSpec.Builder beanBuilder, String enumName, List<String> enumValues) { String defValues = "{"; for (Str
注释仅适用于方法或类型构建器,StringDef是三条注释语句,但两者都没有 使用JavaPoter 1.8.0+可以使用如下代码:
private void createEnumStringDef(TypeSpec.Builder beanBuilder, String enumName, List<String> enumValues) {
String defValues = "{";
for (String defVal :enumValues) {
defValues += enumName +"." +defVal.toUpperCase() +",";
}
defValues = Utils.removeLastChar(defValues) + "}";
TypeSpec.Builder stringDef = TypeSpec.annotationBuilder(enumName)
.addModifiers(Modifier.PUBLIC)
.addAnnotation(AnnotationSpec.builder(ClassName.get("android.support.annotation", "StringDef")).addMember("value", defValues).build())
.addAnnotation(AnnotationSpec.builder(ClassName.get("java.lang.annotation", "Retention")).addMember("value", "$T.SOURCE", ClassName.get("java.lang.annotation", "RetentionPolicy")).build());
for (String defVal : field.enumValues) {
stringDef.addField(FieldSpec.builder(String.class, defVal.toUpperCase())
.addModifiers(Modifier.PUBLIC, Modifier.STATIC, Modifier.FINAL)
.initializer("$S", defVal)
.build());
}
beanBuilder.addType(stringDef.build());
}
private void createEnumStringDef(TypeSpec.Builder beanBuilder、字符串enumName、列表EnumValue){
字符串defValues=“{”;
for(字符串定义:枚举值){
defValues+=enumName+“+defVal.toUpperCase()+”,“;
}
defValues=Utils.removeLastChar(defValues)+“}”;
TypeSpec.Builder stringDef=TypeSpec.annotationBuilder(enumName)
.addModifiers(Modifier.PUBLIC)
.addAnnotation(AnnotationSpec.builder(ClassName.get(“android.support.annotation”,“StringDef”)).addMember(“value”,defValues).build()
.addAnnotation(AnnotationSpec.builder(ClassName.get(“java.lang.annotation”,“Retention”)).addMember(“value”,“$T.SOURCE”,ClassName.get(“java.lang.annotation”,“RetentionPolicy”)).build();
for(字符串定义:field.enumValues){
stringDef.addField(FieldSpec.builder(String.class,defVal.toUpperCase())
.addModifiers(Modifier.PUBLIC、Modifier.STATIC、Modifier.FINAL)
.初始值设定项($S),定义值)
.build());
}
addType(stringDef.build());
}