【发布时间】：2019-04-11 02:33:18
【问题描述】：
由于某种原因，毕加索只显示了 20 张图片中的 6 张。它会显示前 6 张图片，然后重复它们。我正在从网络上获取图像。
有什么想法吗？
Picasso.get().load(response.body().getMediaDetails()
.getSizes().getFull().getSourceUrl())
.fetch(new com.squareup.picasso.Callback() {
@Override
public void onSuccess() {}
@Override
public void onError(Exception e) {
// Try again online if cache failed
Picasso.get()
.load(response.body().getMediaDetails().getSizes().getFull().getSourceUrl())
.placeholder(R.drawable.test_img_size)
.error(R.drawable.test_img_size)
.into(imageView);
}
});
ViewAdapter.java
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.support.v7.widget.CardView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class RecyclerViewAdapter extends
RecyclerView.Adapter<RecyclerView.ViewHolder> {
private ArrayList<Model> dataset;
private Context mContext;
private ArrayList<Model> list;
private RecyclerViewAdapter adapter;
private RecyclerView recyclerView;
private LinearLayoutManager mLayoutManager;
public static List<WPPost> mListPost;
ArrayList<String> imagepath = new ArrayList<>();
private String baseURL = "https://www.myfitbytes.com/";
public RecyclerViewAdapter(ArrayList<Model> mlist, Context context) {
this.dataset = mlist;
this.mContext = context;
}
public static class ImageTypeViewHolder extends RecyclerView.ViewHolder{
TextView title, subtitle, date;
ImageView imageView;
CardView cardview;
public ImageTypeViewHolder(View itemView) {
super(itemView);
this.title = (TextView) itemView.findViewById(R.id.title);
//this.subtitle = (TextView) itemView.findViewById(R.id.subtitle);
this.date = (TextView) itemView.findViewById(R.id.date);
this.imageView = (ImageView) itemView.findViewById(R.id.Icon);
this.cardview = (CardView) itemView.findViewById(R.id.cardview);
}
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from( parent.getContext()).inflate(R.layout.postdetails, parent, false);
return new ImageTypeViewHolder(view) ;
}
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) {
final Model object = dataset.get(position);
// Log.d("RecyclerViewAdapter", "IMAGE="+object.Image);
imagepath.add(position, "");
if (Build.VERSION.SDK_INT >= 24)
{
//( (ImageTypeViewHolder) holder).subtitle.setText(Html.fromHtml(object.subtitle , Html.FROM_HTML_MODE_LEGACY));
( (ImageTypeViewHolder) holder).title.setText( Html.fromHtml(object.title , Html.FROM_HTML_MODE_LEGACY) );
( (ImageTypeViewHolder) holder).date.setText( Html.fromHtml(object.date , Html.FROM_HTML_MODE_LEGACY) );
}
else
{
//( (ImageTypeViewHolder) holder).subtitle.setText(Html.fromHtml(object.subtitle ));
( (ImageTypeViewHolder) holder).title.setText( Html.fromHtml(object.title ));
( (ImageTypeViewHolder) holder).date.setText( Html.fromHtml(object.date ));
}
( (ImageTypeViewHolder) holder).imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(mContext, WPPostDetails.class);
intent.putExtra("itemPosition", position);
mContext.startActivity(intent);
}
});
try {
getthumbnail(object.Image, ( (ImageTypeViewHolder) holder).imageView, position);
}catch (Exception e){
// Log.e("adapter ","failed to get image "+e.toString() );
}
/// dataset.get(position)
}
public void getthumbnail(String imageurl, final ImageView imageView, final int position){
ServiceWrapper serviceWrapper = new ServiceWrapper(null);
Call<GetThumbnail> call = serviceWrapper.getThumbnailCall(imageurl);
call.enqueue(new Callback<GetThumbnail>() {
@Override
public void onResponse(Call<GetThumbnail> call, final Response<GetThumbnail> response) {
if (response.body() != null && response.isSuccessful()) {
try {
if (response.body().getMediaDetails()!=null){
// Log.e("recycler adapter", " image is here-- " + response.body().getMediaDetails().getSizes().getThumbnail().getSourceUrl());
// Log.e("Full IMG SIZE - ", " THIS IS FULL IMAGE URL-- " + response.body().getMediaDetails().getSizes().getFull().getSourceUrl());
imagepath.add(position, response.body().getMediaDetails().getSizes().getFull().getSourceUrl());
Picasso.get()
.load(response.body().getMediaDetails().getSizes().getFull().getSourceUrl())
.fetch(new com.squareup.picasso.Callback() {
@Override
public void onSuccess() {
}
@Override
public void onError(Exception e) {
// Try again online if cache failed
Picasso.get()
.load(response.body().getMediaDetails().getSizes().getFull().getSourceUrl())
.placeholder(R.drawable.test_img_size)
.error(R.drawable.test_img_size)
.into(imageView);
}
});
//Glide.with(mContext)
//.load(response.body().getMediaDetails().getSizes().getFull().getSourceUrl())
//.downloadOnly(new SimpleTarget<File>() {
//@Override
//public void onResourceReady(File resource, GlideAnimation<? super File>
//glideAnimation) {
//Glide.with(mContext)
//.load(response.body().getMediaDetails().getSizes().getFull().getSourceUrl())
//.diskCacheStrategy(DiskCacheStrategy.SOURCE)
//.into(imageView);
//}
//});
}else {
}
}catch (Exception e){
// Log.e("adapter", "fail not media tag "+ e.toString());
}
}
}
@Override
public void onFailure(Call<GetThumbnail> call, Throwable t) {
// Log.e("adapter", " faile image "+t.toString());
}
});
}
@Override
public int getItemCount() {
return dataset.size() ;
}
}
所以，正如一些人建议的那样，正如您所见，我尝试使用 glade 但它没有用。 问题是一样的，当用户向上和向下滚动时，图像会一遍又一遍地重新加载。而且，有时它只缓存 20 张图片中的 6 张（它应该缓存每张图片，这样应用程序将显示缓存中的图片，而不是从网络获取）
【问题讨论】：