Created
September 28, 2019 21:55
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ArrayAdapter for Recycler View
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import android.view.LayoutInflater | |
import android.view.View | |
import android.view.ViewGroup | |
import android.widget.TextView | |
import androidx.annotation.IdRes | |
import androidx.annotation.LayoutRes | |
import androidx.recyclerview.widget.RecyclerView | |
class RecyclerViewArrayAdapter<T>(@LayoutRes var resource: Int, | |
var objects: List<T>, | |
@IdRes var textViewResourceId: Int = 0 | |
) : RecyclerView.Adapter<RecyclerViewArrayAdapter.ViewHolder>() { | |
class ViewHolder(view: View, textViewResourceId: Int) : RecyclerView.ViewHolder(view) { | |
var textView: TextView = | |
when (textViewResourceId) { | |
0 -> view as TextView | |
else -> view.findViewById(textViewResourceId) | |
} | |
} | |
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder { | |
val view = LayoutInflater.from(parent.context).inflate(resource, parent, false) | |
return ViewHolder(view, textViewResourceId) | |
} | |
override fun getItemCount(): Int { | |
return objects.size | |
} | |
override fun onBindViewHolder(holder: ViewHolder, position: Int) { | |
val item = objects[position] | |
if (item is CharSequence) { | |
holder.textView.text = item | |
} else { | |
holder.textView.text = item.toString() | |
} | |
} | |
} |
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