如何在android应用程序kotlin中将arrayList从适配器传递到新活动?
我是一个关于制作应用程序的新手。我想有目的地将数据从适配器传递到新活动。我想传输PastNotesActivity,但它不工作。因为oldTitleName向我显示错误:找到字符串,需要编辑。怎么才能修复它如何在android应用程序kotlin中将arrayList从适配器传递到新活动?,android,kotlin,Android,Kotlin,我是一个关于制作应用程序的新手。我想有目的地将数据从适配器传递到新活动。我想传输PastNotesActivity,但它不工作。因为oldTitleName向我显示错误:找到字符串,需要编辑。怎么才能修复它 class NoteAdapter(private var titleText: ArrayList<String>, private var image: ArrayList<String>) : RecyclerView.Adapter<NoteAdapte
class NoteAdapter(private var titleText: ArrayList<String>, private var image: ArrayList<String>) : RecyclerView.Adapter<NoteAdapter.ViewHolder>() {
inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val itemTitle : TextView = itemView.findViewById(R.id.recyclerTitleText)
val itemImage : ImageView = itemView.findViewById(R.id.recyclerImage)
init {
itemView.setOnClickListener { v: View ->
// Toast.makeText(itemView.context,"You clicked on item # ${position + 1}", Toast.LENGTH_SHORT).show()
val intent = Intent(itemView.context, PastNotesActivity::class.java)
intent.putExtra("oldTitle", titleText[position])
itemView.context.startActivity(intent)
}
}
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val v = LayoutInflater.from(parent.context).inflate(R.layout.recycler_row, parent, false)
return ViewHolder(v)
}
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
holder.itemTitle.text = titleText[position]
Picasso.get().load(image[position]).into(holder.itemImage)
}
override fun getItemCount(): Int {
return titleText.size
}
class PastNotesActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_past_notes)
val intent = intent
val oldTitleName = intent.getStringExtra("oldTitle")
pastTitleText.text = oldTitleName
val navBarTitle = intent.getStringExtra("oldTitle")
supportActionBar?.title = navBarTitle
}
}假设您正在将一个项目的文本从recyclerView传递到所需活动的textView 编码这个
val intent = Intent(itemView.context, PastNotesActivity::class.java)
intent.putExtra("sampledText", "test123")
并将其编码到您想要的活动中
val textFromIntent = intent.getStringExtra("sampledText")
textView.text = textFromintent
顺便说一句,别忘了检查我这是否对你有好处。它不起作用,我再次编辑了代码。我想,现在更清楚了。