我点击了recycleview中的图片并将新图片上传到服务器。如果图片上传成功，那么它应该反映在recycleview中。我正在使用此代码：
private void get_cardview_data(String response) {
r_View_StudentInfo.setHasFixedSize(true);
recyclerViewlayoutManager = new GridLayoutManager(this, 3);
r_View_StudentInfo.setLayoutManager(recyclerViewlayoutManager);
try {
JSONArray jsonArray=new JSONArray(response);
if(jsonArray.length()>0){
for(int n = 0; n < jsonArray.length(); n++) {
getDataAdapter_studentInfo = new GetDataAdapter_StudentInfo();
JSONObject jsonObject = null;
jsonObject = jsonArray.getJSONObject(n);
image= jsonObject.getString("pic_url");
if(image.equals("")){
getDataAdapter_studentInfo.setImageUrl(Config.NULL_IMAGE);
}
else {
getDataAdapter_studentInfo.setImageUrl(Config.SET_IMAGE+dbname+"/"+image);
}
getDataAdapter_studentInfo.setId(jsonObject.getInt(Config.JSON_ID)); getDataAdapter_studentInfo.setSname(jsonObject.getString(Config.JSON_SNAME));
getDataAdapter_studentInfo.setRollno(jsonObject.getString(Config.JSON_ROLLNO));
getDataAdapter_studentInfo.setPname(jsonObject.getString(Config.JSON_PNAME));
getDataAdapter_studentInfo.setPmobile(jsonObject.getString(Config.JSON_PMOBILE));
getDataAdapter_studentInfos.add(getDataAdapter_studentInfo);
recyclerViewadapter = new RecyclerViewAdapter_StudentInfo(getDataAdapter_studentInfos, (Context) this);
// getDataAdapter_studentInfos.clear();
r_View_StudentInfo.setAdapter(recyclerViewadapter);
r_View_StudentInfo.getAdapter().notifyDataSetChanged();
text_nodata.setVisibility(View.GONE);
}
}
else{
text_nodata.setVisibility(View.VISIBLE);
}
}
catch (JSONException e) {
e.printStackTrace();
}
}
但这不是重装。如果我关闭应用程序然后启动它将显示上传的图像。请帮我解决。
public class RecyclerViewAdapter_StudentInfo extends RecyclerView.Adapter<RecyclerViewAdapter_StudentInfo.ViewHolder> {
ImageLoader imageLoader;
Context context;
List<GetDataAdapter_StudentInfo> getDataAdapter_studentInfos;
public RecyclerViewAdapter_StudentInfo(List<GetDataAdapter_StudentInfo> getDataAdapter, Context context){
super();
this.getDataAdapter_studentInfos = getDataAdapter;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items_student_info, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
GetDataAdapter_StudentInfo getDataAdapter_document = getDataAdapter_studentInfos.get(position);
try {
imageLoader = ServerImageParseAdapter.getInstance(context).getImageLoader();
imageLoader.get(getDataAdapter_document.getImageUrl(),
ImageLoader.getImageListener(
holder.imageView,//Server Image
R.mipmap.ic_launcher,//Before loading server image the default showing image.
R.drawable.profile_image //Error image if requested image dose not found on server.
)
);
holder.imageView.setImageUrl(getDataAdapter_document.getImageUrl(), imageLoader);
}catch (Exception e){ }
holder.textView1.setText(String.valueOf(getDataAdapter_document.getId()));
holder.textView2.setText(getDataAdapter_document.getSname());
holder.textView3.setText(getDataAdapter_document.getRollno());
holder.textView4.setText(getDataAdapter_document.getPname());
holder.textView5.setText(getDataAdapter_document.getPmobile());
// holder.imageView.setImageResource(getDataAdapter_document.getImageUrl());
}
public void refreshEvents(List<GetDataAdapter_StudentInfo> getDataAdapter_studentInfos) {
this.getDataAdapter_studentInfos.clear();
this.getDataAdapter_studentInfos.addAll(getDataAdapter_studentInfos);
notifyDataSetChanged();
}
@Override
public int getItemCount() {
return getDataAdapter_studentInfos.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
public TextView textView1,textView2,textView3,textView4,textView5;
public NetworkImageView imageView;
public ViewHolder(View itemView) {
super(itemView);
imageView = (NetworkImageView)itemView.findViewById(R.id.student_image);
textView1 = (TextView) itemView.findViewById(R.id.textView1) ;
textView2 = (TextView) itemView.findViewById(R.id.textView2) ;
textView3 = (TextView) itemView.findViewById(R.id.textView3) ;
textView4 = (TextView) itemView.findViewById(R.id.textView4) ;
textView5 = (TextView) itemView.findViewById(R.id.textView5) ;
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
GetDataAdapter_StudentInfo getDataAdapterDocument = getDataAdapter_studentInfos.get(getAdapterPosition());
Intent intent=new Intent(context,StudentInfo_CardClick.class);
intent.putExtra("student_pic", getDataAdapterDocument.getImageUrl());
intent.putExtra("stud_name", getDataAdapterDocument.getSname());
intent.putExtra("stud_rollno", getDataAdapterDocument.getRollno());
intent.putExtra("stud_id", String.valueOf(getDataAdapterDocument.getId()));
intent.putExtra("stud_pname", getDataAdapterDocument.getPname());
intent.putExtra("stud_pmobile", getDataAdapterDocument.getPmobile());
context.startActivity(intent);
}
});
}
}
}
private void selected_section_id() {
StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.C_SEND_SECTION_ID,
new Response.Listener<String>() {
@Override
public void onResponse(String response)
{
//Toast.makeText(Dashboard.this,response,Toast.LENGTH_LONG).show();
// getDataAdapter_studentInfos.clear();
get_cardview_data(response);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(Dashboard.this,error.toString(),Toast.LENGTH_LONG).show();
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put(Config.C_DB_NAME_D,dbname);
params.put(Config.C_AC_YEAR_ID_SEC,ac_yearid);
params.put(Config.C_CLASS_ID,value_class);
params.put(Config.C_SECTION_ID,value_section);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(Dashboard.this);
requestQueue.add(stringRequest);
}
答案 0 :(得分：0)
从图像上传到服务器后获得的响应，执行此操作
if (image.equals("")) {
getDataAdapter_studentInfo.setImageUrl(Config.NULL_IMAGE);
} else {
getDataAdapter_studentInfo.setImageUrl(Config.SET_IMAGE + dbname + "/" + image);
}
getDataAdapter_studentInfo.setId(jsonObject.getInt(Config.JSON_ID));
getDataAdapter_studentInfo.setSname(jsonObject.getString(Config.JSON_SNAME));
getDataAdapter_studentInfo.setRollno(jsonObject.getString(Config.JSON_ROLLNO));
getDataAdapter_studentInfo.setPname(jsonObject.getString(Config.JSON_PNAME));
getDataAdapter_studentInfo.setPmobile(jsonObject.getString(Config.JSON_PMOBILE));
getDataAdapter_studentInfos.set(position, getDataAdapter_studentInfo);
adapter.notifyDataSetChanged();
或
再次回忆所有列表api并在添加之前清除列表 所以它不会被追加并创造进一步的混乱
致电
....
getDataAdapter_studentInfos.clear();
if(jsonArray.length()>0){
for(int n = 0; n < jsonArray.length(); n++) {
....
答案 1 :(得分：0)
最后，我使用Glide代替Imageloader获取输出，并将属性设置为diskCacheStrategy(DiskCacheStrategy.NONE)和skipMemoryCache(true)。