Why does onBindViewHolder is not able to catch exception from onBindBaseViewHolder?-CodePudding

Basically, I've 2 adapter class, one is MyAdapter class and another is BaseRecyclerViewAdapter.

So, MyAdapter extends BaseRecyclerViewAdapter

BaseRecyclerViewAdapter

import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView

abstract class BaseRecyclerViewAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

    abstract fun onCreateBaseViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder
    abstract fun onBindBaseViewHolder(viewHolder: RecyclerView.ViewHolder, viewType: Int)
    abstract fun getBaseItemCount(): Int

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
        return onCreateBaseViewHolder(parent, viewType)
    }

    override fun onBindViewHolder(viewHolder: RecyclerView.ViewHolder, viewType: Int) {
        try {
            onBindBaseViewHolder(viewHolder, viewType)
        } catch (e: Exception) {
            e.printStackTrace()
        }
    }

    override fun getItemCount(): Int {
        return getBaseItemCount()
    }
}

MyAdapter:

class MyAdapter: BaseRecyclerViewAdapter {

...

override fun onBindBaseViewHolder(viewHolder: RecyclerView.ViewHolder, viewType: Int) {
// manually creating to exception for testing purpose

val test = ""
val count = test.get(5)

}
......

}

Now, inside MyAdapter class, I extended BaseRecyclerViewAdapter and overridden 3 methods, and written all logic. Now inside, (MyAdapter -> onBindBaseViewHolder) if any exception is coming then ideally it should catch inside (BaseRecyclerViewAdapter -> onBindViewHolder) but it is still going here (MyAdapter -> onBindBaseViewHolder)

EDIT: No try catch block exist inside MyAdapter - onBindBaseViewHolder, And I don't want that. See I've 50 adapter classes, and I want all route through this base class and if exception comes then should catch from base class, so that I don't need to add from every class.

CodePudding user response：

Check it out:

override fun onBindViewHolder(viewHolder: RecyclerView.ViewHolder, viewType: Int) {
        try {
            test(viewHolder, viewType)
        } catch (e: Exception) {
            LogUtils.d("Hello print")
            e.printStackTrace()
        }
    }

    override fun getItemCount(): Int {
        return getBaseItemCount()
    }

    fun test(viewHolder: RecyclerView.ViewHolder, viewType: Int) {
        onBindBaseViewHolder(viewHolder, viewType)
    }