问题描述
我遵循有关kotlin编程语言解析API的本教程：https://www.youtube.com/watch?v=2W41M9fWf6I&list=PL0dzCUj1L5JGfHj1lwxOq67zAJV3e1S9S&index=5，
并且为了跟随下面的教程链接，我使用androidx api版本30
但是我大约在14:54被困住了
"client.newCall(request).enqueue(object : Callback){
}"
在CourseDetailActivity的第（45）行出现错误
错误是：
Too many arguments for public abstract fun enqueue(responseCallback: Callback): Unit defined in okhttp3.Call
这是我的CourseDetailActivity：
class CourseDetailActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// recyclerView_main.setBackgroundColor(Color.RED)
recyclerView_main.layoutManager = linearlayoutmanager(this)
recyclerView_main.adapter = CourseDetailAdapter()
val navbarTitle = intent.getStringExtra(CustumViewHolder.VIDEO_TITLE_KEY)
supportActionBar?.title = navbarTitle
// println(courseDetailUrl)
fetcJson()
}
private fun fetcJson() {
val videoID = intent.getIntExtra(CustumViewHolder.VIDEO_ID_KEY,-1)
val courseDetailUrl = "https://api.letsbuildthatapp.com/youtube/course_detail?id=" + videoID
val client = OkHttpClient()
val request = Request.Builder().url(courseDetailUrl).build()
client.newCall(request).enqueue(object : Callback){
}
}
private class CourseDetailAdapter : RecyclerView.Adapter<CourseLessonViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup,viewType: Int): CourseLessonViewHolder {
val layoutInflater = LayoutInflater.from(parent?.context)
val custumView = layoutInflater.inflate(R.layout.course_lesson_row,parent,false)
// val blueView = View(parent?.context)
// blueView.setBackgroundColor(Color.RED)
// blueView.minimumHeight = 50
return CourseLessonViewHolder(custumView)
}
override fun getItemCount(): Int {
return 5
}
override fun onBindViewHolder(holder: CourseLessonViewHolder,position: Int) {
}
}
}
private class CourseLessonViewHolder(val custumView: View) : RecyclerView.ViewHolder
(custumView) {
}
这是我的MainAdapter.kt类：
class MainAdapter(val homeFeed: HomeFeed) : RecyclerView.Adapter<CustumViewHolder>() {
val videoTitles = listof("First Title","Second","3rd")
override fun getItemCount(): Int {
return homeFeed.videos.count()
}
override fun onCreateViewHolder(parent: ViewGroup,viewType: Int): CustumViewHolder {
val layoutInflater = LayoutInflater.from(parent?.context)
val cellForRow = layoutInflater.inflate(R.layout.video_row,false)
return CustumViewHolder(cellForRow)
}
override fun onBindViewHolder(holder: CustumViewHolder,position: Int) {
val video = homeFeed.videos.get(position)
holder?.view?.textView_video_title?.text = video.name
holder?.view?.textview_channel_name?.text =
video.channel.name + "+" + "20k Views\n" + "2 days ago"
val thumbnailImageView = holder?.view?.imageView_video_thumbnail
Picasso.get().load(video.imageUrl).into(thumbnailImageView)
val channelProfileImageView = holder?.view?.imageView_channel_profile
Picasso.get().load(video.imageUrl).into(channelProfileImageView)
holder?.video = video
}
}
class CustumViewHolder(val view: View,var video: Video? = null) : RecyclerView.ViewHolder(view) {
companion object {
val VIDEO_TITLE_KEY = "VIDEO_TITLE"
val VIDEO_ID_KEY = "VIDEO_ID"
}
init {
view.setonClickListener {
val intent = Intent(view.context,CourseDetailActivity::class.java)
intent.putExtra(VIDEO_TITLE_KEY,video?.name)
intent.putExtra(VIDEO_ID_KEY,video?.id)
view.context.startActivity(intent)
}
}
}
解决方法
您在实现接口“回调”的匿名类中犯了一个错误。
相反
<html>
<body>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/require1k.min.js"></script>
<script>
R(function (require,module,exports) {
const {SimpleTest} = require("./target/ng-demo.cjs");
new SimpleTest("commonjs");
});
</script>
</body>
</html>
使用此
client.newCall(request).enqueue(object : Callback){
}