使用 Kotlin 将片段上的 itemClickCallBack RecyclerView 转到 DetailActiviy

Question

我尝试在我的适配器中制作 itemClickCallback 并尝试在我的片段中实现它。我的问题是单击卡片时 DetailActivity 无法显示。

CardViewMovieAdapter

class CardViewMovieAdapter(private val listMovie: ArrayList<Movie>) : RecyclerView.Adapter<CardViewMovieAdapter.CardViewViewHolder>() {

.................

*intent*
                itemView.setOnClickListener {

                    val intent = Intent( context, DetailMovieActivity::class.java)
                    intent.putExtra(DetailMovieActivity.EXTRA_MOVIE, movie)
                    startActivity(context,intent,Bundle())
                }
...............................

interface OnItemClickCallback {
        fun onItemClicked(data: Movie)
    }

}

电影片段

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        ........

*the itmeclikcallback*
        cardViewMovieAdapter.setOnItemClickCallback(object : CardViewMovieAdapter.OnItemClickCallback{
            override fun onItemClicked(data: Movie) {
                showSelectedHero(data)

...............

fun showSelectedHero(movie: Movie) {
        val intent = Intent( context, DetailMovieActivity::class.java)
      intent.putExtra(DetailMovieActivity.EXTRA_MOVIE, movie)
       startActivity(intent)

DetailMovieActivity

class DetailMovieActivity : AppCompatActivity() {

    companion object{
        const val EXTRA_MOVIE = "extra_movie"
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_detail)

*get data intent*

        val moviesData = intent.getParcelableArrayExtra(EXTRA_MOVIE) as Movie

        val imgPhotoMovie: ImageView = img_item_photo
        val tvMovieNane : TextView = tv_item_name
        val tvMovieDescription : TextView = tv_item_description
        val tvMovieDetail: TextView = tv_item_description2

        tvMovieNane.setText(moviesData.name)
        tvMovieDescription.setText(moviesData.description)
        tvMovieDetail.setText(moviesData.detail)

        Glide.with(this)
            .load(moviesData.photo)
            .into(imgPhotoMovie)

    }
}

如何修复此意图以显示带有数据的 detailActivity？

Answer 1

Activityclass中没有startActivity (context, intent, Bundle())等带参数的方法，有ex这样的方法。 startActivity(intent, new Bundle());.
您不能从视图中调用 startActivity，您应该通过上下文或 activity 调用它，例如 context.startActivity(...) 或 activity.startActivity(...) 您可以在视图中执行此操作，例如：

val intent = Intent(view.context, YourActivity::class.java) view?.context?.startActivity(intent, new Bundle())

所以只需要更换

startActivity (context, intent, Bundle())

有

context.startActivity(intent)

使用 Kotlin 将片段上的 itemClickCallBack RecyclerView 转到 DetailActiviy

itemClickCallBack RecyclerView on fragment to DetailActiviy with Kotlin

android

kotlin

onclicklistener