How to send my room database saving image or data one activity to another

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Hello everyone I trying to do when I click my Recycler View Item then it go another activity and show Recycler View Clicked item image and title. MY recycler View Item click to go another activity work done but how I can solve image and title send another activity. I am using room database. So anyone please help me.

MainActivity

  private fun getAllCompletedData(registerDao: registerDao){
        lifecycleScope.launch {
            registerDao.fetchAllData().collect { allCompletedData->
                val list = ArrayList(allCompletedData)
                setUpListOfDataIntoRecyclerView(list, registerDao)

            }
        }
    }

 private fun setUpListOfDataIntoRecyclerView(registerList:ArrayList<registerEntity>,
                                                registerDao: registerDao){


        if(registerList.isNotEmpty()){
            val itemAdapter = MainAdapter(registerList)

            itemAdapter.onItemClick = { goToAnotherActivity()}

            binding?.rvHappyPlaceList?.layoutManager = LinearLayoutManager(this)
            binding?.rvHappyPlaceList?.adapter = itemAdapter
            }
    }


    fun goToAnotherActivity() {

        val intent = Intent(this, HappyPlaceDetailsActivity::class.java)
        startActivity(intent)
    }

MainAdapter

class MainAdapter(val items: ArrayList<registerEntity>,
                  var onItemClick: (() -> Unit)? = null):
    RecyclerView.Adapter<MainAdapter.MainHolder>() {

    private var onClickListener: AdapterView.OnItemClickListener? = null

    inner class MainHolder(var binding: ItemHappyPlaceBinding): RecyclerView.ViewHolder(binding.root) {


        init {
            binding.root.setOnClickListener {
                onItemClick?.invoke()
            }
        }
                                val llTitle = binding.tvTitle
                                 val llDescription = binding.tvDescription
                                  var llImage = binding.ivPlaceImage
                         }
android-room android-recyclerview kotlin serialization android
1 Answers

Try this

Data class, can be modify to your

import java.io.Serializable

data class RegisterEntity(
   var llImage: String,
   var llTitle: String,
   var llDescription: String
): Serializable

Adapter class

class MainAdapter(val items: ArrayList<RegisterEntity>,
              var onItemClick: ((RegisterEntity) -> Unit)? = null):
RecyclerView.Adapter<MainAdapter.MainHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MainAdapter.MainHolder {
    val layoutInflater = LayoutInflater.from(parent.context)
    val binding: ListItemBinding = DataBindingUtil.inflate(
        layoutInflater,
        R.layout.list_item,
        parent,
        false
    )
    return ItemHappyPlaceBinding(binding)
}

override fun onBindViewHolder(holder: MainAdapter.MainHolder, position: Int) {
    val item= items[position]
    holder.bind(item)
}

override fun getItemCount(): Int  = items.size

inner class MainHolder(val binding: ItemHappyPlaceBinding) :
    RecyclerView.ViewHolder(binding.root) {

        fun bind(item: RegisterEntity) {
            val llTitle = binding.tvTitle
            val llDescription = binding.tvDescription
            var llImage = binding.ivPlaceImage
            // you should be able to set the text here
            //e.g llTitle.text = item.title

            binding.root.setOnClickListener {
                onItemClick?.invoke(item)
            }
            llTitle.text = item.llTitle.toString()
            llDescription.text = item.llDescription.toString()
        
        }
     }
  }

Now in your MainActivity

class FirstActivity : AppCompatActivity() {
var binding: ActivityMainBinding? = null
val items: ArrayList<RegisterEntity> = arrayListOf()

lateinit var adapter: MainAdapter
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
    adapter = MainAdapter(items){
        goToAnotherActivity(it)
    }


    val registerDao: registerDao = registerDao()// replace with your dao
    getAllCompletedData(registerDao)

}

private fun getAllCompletedData(registerDao: registerDao){
    lifecycleScope.launch {
        registerDao.fetchAllData().collect { allCompletedData->
            val list = ArrayList(allCompletedData)
            setUpListOfDataIntoRecyclerView(list, registerDao)

        }
    }
}

private fun setUpListOfDataIntoRecyclerView(registerList:ArrayList<RegisterEntity>,
                                            registerDao: registerDao){


    if(registerList.isNotEmpty()){
        val itemAdapter = MainAdapter(registerList)

        itemAdapter.onItemClick = { goToAnotherActivity()}

        binding?.rvHappyPlaceList?.layoutManager = LinearLayoutManager(this)
        binding?.rvHappyPlaceList?.adapter = itemAdapter
    }
}


private fun goToAnotherActivity(registerEntity: RegisterEntity) {
    val intent = Intent(this, HappyPlaceDetailsActivity::class.java)
    intent.putExtra("data", registerEntity)
    startActivity(intent)
  }

}

Now in your second activity that want to receive the object

 class HappyPlaceDetailsActivity : AppCompatActivity() {
var binding: ActivityMainBinding? = null
val items: ArrayList<RegisterEntity> = arrayListOf()

lateinit var adapter: MainAdapter
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    binding = DataBindingUtil.setContentView(this, R.layout.second_activity)


    val registerEntity = intent.getSerializableExtra("data") as? RegisterEntity

    }

   // you should be able to get your way from here

 }

If you need more clarification, check this How to pass values from RecycleAdapter

user_80864010
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