RecyclerView:获取位置并切换到活动 [英] RecyclerView : get position and switch to activity
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问题描述
如何获得在 RecyclerView
行中点击的项目的位置,然后在 onClick
方法中对活动进行意图?这是我的适配器:
How is it possible to get the position of the item which was clicked in the RecyclerView
row and than make a intent to an activity in the onClick
method ?
Here is my adapter:
public class SergejAdapter extends RecyclerView.Adapter<SergejAdapter.MyViewHolder>{
private LayoutInflater inflater;
List<Information> data= Collections.emptyList();
public SergejAdapter(Context context, List<Information> data){
inflater = LayoutInflater.from(context);
this.data=data;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.navigation_drawer_custom_row,parent,false);
MyViewHolder holder= new MyViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Information current=data.get(position);
holder.title.setText(current.title);
}
@Override
public int getItemCount() {
return data.size();
}
class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
TextView title;
ImageView icon;
public MyViewHolder(View itemView){
super(itemView);
title= (TextView) itemView.findViewById(R.id.listText);
icon = (ImageView) itemView.findViewById(R.id.listIcon);
icon.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Context context = itemView.getContext();
Intent intent = new Intent(context, Ernaehrung.class);
context.startActivity(intent);
}
}
这里我只有一个 onClick
,当其中一张图片被点击时,但每张图片都有相同的意图.
Here I just have an onClick
when one of the images was clicked, but every image has the same intent.
推荐答案
您可以使用 getAdapterPosition()
方法从 ViewHolder 获取位置.就像下面的代码:
You can get postion from ViewHolder by using getAdapterPosition()
method. Like in code below:
public class SergejAdapter extends RecyclerView.Adapter<SergejAdapter.MyViewHolder>{
...
class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
@Override
public void onClick(View v) {
// here you use position
int position = getAdapterPosition();
...
}
}
}
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