RecyclerView Adapter onBind方法 [英] RecyclerView Adapter onBind method

问题描述

我在MainActivity 3 RecyclerViews中.

其中一个是底部表单，它是主要表单(默认情况下，底部表单是Open To Display this)，这是其 适配器的onbind方法 做了一个 onClickListener ，以便当用户单击该项目时我想要

One of them in a bottom sheet and it is the main one (By Default the Bottom sheet is Open To Display this one ), in its adapter's onbind method I made an onClickListener so that I want when the user clicks on an item in it,

我想返回到主活动类，以设置要开始滚动的方法，是要关闭底部工作表并为下一个回收视图设置数据(当底页已关闭)

I want to go back to the main activity class to set To Start a method which it's rolled is to close the Bottom Sheet and set the data for the next recycling view (which will appear when the Bottom Sheet is closed)

....这里的问题是如何从onBind方法的Listener启动此方法，并从此viewHolder中为其指定一个参数作为其名称和一些属性

..... The issue here is how to start this method from the onBind method's Listener and give it a parameter from this viewHolder as its name and some of its attributes

如果有不清楚的地方，请告诉我

if there is something not clear please let me know

@Override
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int position) {

        viewHolder.categoryImage.setImageResource(mRowOfCategories.get(position).getCategoryImage());
        viewHolder.categoryName.setText(mRowOfCategories.get(position).getCategoryName());
        viewHolder.mCardView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


            }
        });


    }

推荐答案

最简单:

您在活动"中声明要调用的方法.它必须是公开的:

You declare the method you want to call in your Activity. It has to be public:

public void method(){}

然后，在适配器的构造函数中，将对Activity的引用作为参数传递:

Then, in the Constructor of the Adapter, you pass a reference to the Activity as a parameter:

public MyAdapter(Activity activity){}

而且，在onBindViewHolder中:

And, in the onBindViewHolder:

MyActivity mActivity=(MyActivity)activity;
mActivity.method();

这篇关于RecyclerView Adapter onBind方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！