在我的android应用程序中,我在另一个Adatper
中使用Adapter
。比方说孩子和父母Adapter
。在父Adapter
中,我对一个项使用了onclick
方法,并实例化了子Adapter
。现在onClick
在子Adapter
中的视图上,我想向父Adapter
发送信号并运行一个函数
这是我的代码:
// This is in parent layout
holder.liker.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
holder.reaction_layout.setVisibility(View.VISIBLE);
if(holder.cursor.getCount()>0)
{
holder.show_reaction=true;
holder.tinyDB.putString("post_id",String.valueOf(holder.username.getTag()));
holder.tinyDB.putString("act_id",String.valueOf(holder.post_comment.getTag()));
while(holder.cursor.moveToNext())
{
holder.imageModelArrayList.add(new ReactionModel(holder.cursor.getString(1),holder.cursor.getString(3),holder.cursor.getString(2)));
holder.recyclerView.setAdapter(holder.adapter); //Here i instantiate the child adapter
}
}
return true;
}
});
现在这是子Adapter
:的点击功能
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
tinyDB.putString("image",imageModelArrayList.get(position).getImage_drawable());
String react_id=String.valueOf(holder.title.getTag());
String act_id=tinyDB.getString("act_id");
String post_id=tinyDB.getString("post_id");
NetworkController.postLikePojoClassCall(base64,Integer.parseInt(act_id),Integer.parseInt(react_id),Integer.parseInt(post_id)).enqueue(new retrofit2.Callback<PostLikePojoClass>() {
@Override
public void onResponse(Call<PostLikePojoClass> call, retrofit2.Response<PostLikePojoClass> response) {
if(response.isSuccessful()) {
System.out.println("response__ " + response.body().getSuccess());
}else{
System.out.println("response__ " + response.errorBody());
}
}
@Override
public void onFailure(Call<PostLikePojoClass> call, Throwable t) {
System.out.println("failure__ " + t.getMessage());
}
});
}
});
在这次点击中,我想向父Adapter
发送项目已被点击的信号。
使用回调方法触发父适配器
创建接口
public interface MyInterface{
void click();
}
使父适配器实现接口
class YourParentAdapter extends RecyclerView.Adapter<YourViewHolder> implements MyInterface
通过构造函数将父适配器传递给子适配器
public ChildAdapter(MyInterface myInterface){
this.myInterface = interface;
}
现在,您可以在子适配器中使用父适配器中的函数:
myInterface.click();