如何在recyclerView中的图像上添加onClickListener

Question

我正试图使用Glide框架在这段代码中的图像上附加onclick监听器，但我找不到解决方案。有人能帮忙吗？

图像已显示在模拟器中。

提前感谢

package com.example.andoridlifecycle.adapters
import android.content.Context
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.Toast
import androidx.recyclerview.widget.RecyclerView
import com.bumptech.glide.Glide
import com.bumptech.glide.load.engine.DiskCacheStrategy
import com.example.andoridlifecycle.R
import kotlinx.android.synthetic.main.item_custom_row.view.*
class ItemAdapter(private val context: Context, private val urls: ArrayList<String>) :
RecyclerView.Adapter<ItemAdapter.ViewHolder>() {

/**
* Inflates the custom view which is designed in xml layout file
*/
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
return ViewHolder(
LayoutInflater.from(context).inflate(
R.layout.item_custom_row,
parent,
false
)
)
}

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
// Array with urls
val url = urls[position]
Glide.with(context)
.load(url)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.placeholder(R.drawable.placeholder)
.into(holder.imageView)
}
// Gets the number of items in the list
override fun getItemCount(): Int {
return urls.size
}
// A ViewHolder describes an item view and metadata about its place within the RecyclerView.
class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
val imageView: ImageView = view.iv_image
}
}

Answer 1

我是Java开发人员，所以我不能用Kotlin编写代码，但我将向您展示如何在imageView上设置OnClickListener。对于在imageView上使用OnclickListener，不需要Glide Library。只需在onBindViewHolder 中添加以下行

holder.imageView.setOnClickListener(view -> {
Toast.makeText(context, "this is number: "+position+" Image Selected", Toast.LENGTH_SHORT).show();
// or your code for imageView
});

您的新代码如下所示：-

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
// Array with urls
val url = urls[position]
//code for onClick on image
holder.imageView.setOnClickListener(view -> {
Toast.makeText(context, "this is number: "+position+" Image Selected", Toast.LENGTH_SHORT).show();
// or your code for imageView
});

Glide.with(context)
.load(url)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.placeholder(R.drawable.placeholder)
.into(holder.imageView)
}

请确保在我的代码中将JAVA更改为Kotlin。如果你有任何问题，请告诉我