[英]Launching BottomSheet from a RecyclerViewAdapter that extends with RecyclerView.Adapter inside onBindViewHolder
[英]cannot resolve symbol findViewById in class with extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>
这是我的课
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
我尝试了声明foto = (ImageView) findViewById(R.id.Foto);
在方法@Override public void onBindViewHolder(ViewHolder Viewholder, int position) {
并且我尝试使用protected void onCreate(Bundle savedInstanceState) {
但这仍然是错误的
适配器类
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
Context context;
private static final String TAG = RecyclerViewAdapter.class.getSimpleName();
List<GetDataAdapter> getDataAdapter;
ImageLoader imageLoader1;
private ImageView foto;
String getFoto;
String FIXURL = "http://192.168.0.103/AndroidFileUpload/";
String url = FIXURL + "uploads/";
public RecyclerViewAdapter(List<GetDataAdapter> getDataAdapter, Context context) {
super();
this.getDataAdapter = getDataAdapter;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder Viewholder, int position) {
final GetDataAdapter getDataAdapter1 = getDataAdapter.get(position);
imageLoader1 = ServerImageParseAdapter.getInstance(context).getImageLoader();
// imageLoader1.get(getDataAdapter1.getFoto(),
// ImageLoader.getImageListener(
// Viewholder.networkImageView,//Server Image
// R.mipmap.ic_launcher,//Before loading server image the default showing image.
// android.R.drawable.ic_dialog_alert //Error image if requested image dose not found on server.
// )
// );
// getFoto = getDataAdapter1.getIdJalan();;
// String FullURL = url+getFoto;
foto = (ImageView) findViewById(R.id.Foto);
// Picasso.with(getApplicationContext()).load(url + getDataAdapter1.getFoto()).into(foto);
Viewholder.networkImageView.setImageUrl(getDataAdapter1.getFoto(), imageLoader1);
Viewholder.ImageTitleNameView.setText(getDataAdapter1.getIdJalan());
Viewholder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "coba nih5 : "+getDataAdapter1.getIdJalan());
//
// Intent intent = new Intent(v.getContext(), SeconActivity.class);
// intent.putExtra("key",getDataAdapter1.getImageTitleName());// getDataAdapter1 in your case
// context.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return getDataAdapter.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
public TextView ImageTitleNameView;
public NetworkImageView networkImageView;
public ViewHolder(View itemView) {
super(itemView);
ImageTitleNameView = (TextView) itemView.findViewById(R.id.textView_item);
networkImageView = (NetworkImageView) itemView.findViewById(R.id.VollyNetworkImageView1);
}
}
}
这是布局
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardview1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardElevation="3dp"
card_view:contentPadding="3dp"
card_view:cardCornerRadius="3dp"
card_view:cardMaxElevation="3dp"
>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<de.hdodenhof.circleimageview.CircleImageView
android:id="@+id/Foto"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="@mipmap/ic_launcher"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Image Name"
android:id="@+id/textView_item"
android:layout_centerVertical="true"
android:layout_toRightOf="@+id/VollyNetworkImageView1"
android:layout_toEndOf="@+id/VollyNetworkImageView1"
android:layout_marginLeft="20dp"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
此错误意味着您使用了错误的对象来调用findViewById()
。 您必须使用Activity
或View
来调用此方法。 您最有可能需要从ViewHolder
获取视图,该视图已传递给onBindViewHolder()
方法。 像这样
View v = viewholder.itemView;
foto = (ImageView) v.findViewById(R.id.Foto);
ps声明ViewHolder Viewholder
令人难以置信。 通常,变量名以小写字母开头。 更好的是,使用明显不同的词,例如ViewHolder holder
。 这样就可以清楚地知道类型和名称,而不必仔细查看确切的字母和大小写。
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