Android 回收器使用重复值更新
我使用wipe to delete方法删除一行,当我从“回收器列表”视图中删除一行时,它会复制刚好低于我删除的一行的值。 如果我从列表中删除“测试3” 它在第3和第4位置显示“测试4”的副本 我的全部代码用于创建和删除列表,有人能帮我吗Android 回收器使用重复值更新,android,listview,android-recyclerview,Android,Listview,Android Recyclerview,我使用wipe to delete方法删除一行,当我从“回收器列表”视图中删除一行时,它会复制刚好低于我删除的一行的值。 如果我从列表中删除“测试3” 它在第3和第4位置显示“测试4”的副本 我的全部代码用于创建和删除列表,有人能帮我吗 public class fragmnetPendingAct extends Fragment { private SwipeRefreshLayout refreshLayout; private RecyclerView recycl
public class fragmnetPendingAct extends Fragment {
private SwipeRefreshLayout refreshLayout;
private RecyclerView recyclerView;
ArrayList<String> activitynames;
FirebaseAuth mAuth;
View view;
List<modelclasspendingact> modelclasspendingactList = new ArrayList<>();
public fragmnetPendingAct() {
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_pendingactivity,container,false);
refreshLayout = (SwipeRefreshLayout) v.findViewById(R.id.swipe_activitypend);
recyclerView = v.findViewById(R.id.recyclerviewpendingact);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
new ItemTouchHelper(itemtouchHelpercalback).attachToRecyclerView(recyclerView);
//listen to swipe horizontal
refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
// Get new Instance ID token
FirebaseUser mUser = mAuth.getInstance().getCurrentUser();
mUser.getIdToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String token = task.getResult().getToken();
// Send token to your backend via HTTPS
getdatafromserver(token);
} else {
// Handle error -> task.getException();
Log.w(TAG, "getInstanceId failed second", task.getException());
}
}
});
refreshitems();
}
});
// Get new Instance ID token
FirebaseUser mUser = mAuth.getInstance().getCurrentUser();
mUser.getIdToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String token = task.getResult().getToken();
Log.d(TAG, "onComplete lead: "+token);
// Send token to your backend via HTTPS
getdatafromserver(token);
} else {
// Handle error -> task.getException();
Log.w(TAG, "getInstanceId failed second", task.getException());
}
}
});
return v;
}
public void getdatafromserver(String token){
//new code using curl
String serverurl="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, serverurl,null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
Log.d(TAG, "activity list: "+response);
JSONObject alldata=response.getJSONObject("payload");
JSONArray assetaarray=alldata.getJSONArray("activities");
modelclasspendingactList.removeAll(modelclasspendingactList);
for(int i=0;i<assetaarray.length();i++)
{
JSONObject getactivity=assetaarray.getJSONObject(i);
String activityid = String.valueOf(getactivity.getInt("id"));
String activityname = getactivity.getString("title");
String activitydesc = getactivity.getString("description");
Log.d(TAG, "activity name: "+activityname);
//list crreation
modelclasspendingactList.add(new modelclasspendingact(activityname,activitydesc,activityid));
pendingactAdapter adapter = new pendingactAdapter(modelclasspendingactList);
recyclerView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
}
){
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> headers=new HashMap<String,String>();
headers.put("Accept","*/*");
headers.put("Cache-Control","no-cache");
headers.put("cache-control","no-cache");
headers.put("token",token);
return headers;
}
};
singletonclasshttp.getInstance(getActivity()).addtorequestque(jsonObjectRequest);
}
private void refreshitems()
{
refreshLayout.setRefreshing(false);
}
//swipe function
ItemTouchHelper.SimpleCallback itemtouchHelpercalback = new ItemTouchHelper.SimpleCallback(0,ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {
@Override
public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, @NonNull RecyclerView.ViewHolder viewHolder1) {
return false;
}
@Override
public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
Log.d(TAG, "onSwiped: "+modelclasspendingactList.get(viewHolder.getAdapterPosition()).getPendid());
Log.d(TAG, "onSwiped: position "+viewHolder.getAdapterPosition());
String activeid = modelclasspendingactList.get(viewHolder.getAdapterPosition()).getPendid();
// Get new Instance ID token
FirebaseUser mUser = mAuth.getInstance().getCurrentUser();
mUser.getIdToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String token = task.getResult().getToken();
//send token and activity id to update function
markascompleted(activeid,token);
} else {
// Handle error -> task.getException();
Log.w(TAG, "getInstanceId failed second", task.getException());
}
}
});
Log.d(TAG, "onSwiped: position "+viewHolder.getAdapterPosition());
Log.d(TAG, "onSwiped: first list size "+modelclasspendingactList.size());
pendingactAdapter adapter = new pendingactAdapter(modelclasspendingactList);
modelclasspendingactList.remove(viewHolder.getAdapterPosition());
recyclerView.removeViewAt(viewHolder.getAdapterPosition());
adapter.notifyItemRemoved(viewHolder.getAdapterPosition());
// adapter.notifyItemRangeChanged(viewHolder.getAdapterPosition(), modelclasspendingactList.size());
// adapter.notifyDataSetChanged();
Log.d(TAG, "onSwiped: list size "+modelclasspendingactList.size());
// pendingactAdapter adapter = new pendingactAdapter(modelclasspendingactList);
// modelclasspendingactList.remove(viewHolder.getAdapterPosition());
// adapter.notifyItemRemoved(viewHolder.getAdapterPosition());
}
};
private void markascompleted(String activeid,String token)
{
//send data to server
//curl function
String serverurl="xxxxxxxxxxxxxxxxxxxxxxx";
Map<String, Object> jsonParams = new ArrayMap<>();
jsonParams.put("id", activeid);
jsonParams.put("activityStatus", "COMPLETED");
jsonParams.put("targetEmployeeId", "1001");
jsonParams.put("score", "1");
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.PUT, serverurl,new JSONObject(jsonParams),
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d(TAG, "response: "+response);
try {
if (response.optBoolean("success")==true)
{
Toast.makeText(getActivity(), response.getString("message"),Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(getActivity(),"Data Not Updated",Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
Toast.makeText(getActivity(),"Data Not Updated",Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(),"Data Not Saved",Toast.LENGTH_SHORT).show();
error.printStackTrace();
}
}
){
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> headers=new HashMap<String,String>();
headers.put("Accept","*/*");
headers.put("Cache-Control","no-cache");
headers.put("Connection","keep-alive");
headers.put("Content-Type","application/json");
headers.put("cache-control","no-cache");
headers.put("token",token);
return headers;
}
};
singletonclasshttp.getInstance(getActivity()).addtorequestque(jsonObjectRequest);
}
}
公共类fragmnetPendingAct扩展片段{
私人交换机布局刷新布局;
私人回收站;
ArrayList活动名称;
FirebaseAuth mAuth;
视图;
List modelclasspendingactList=new ArrayList();
公共fragmnetPendingAct(){
}
@可空
@凌驾
创建视图时的公共视图(@NonNull LayoutInflater inflater、@Nullable ViewGroup container、@Nullable Bundle savedInstanceState){
视图v=充气机。充气(右侧布局。碎片悬而未决活动,容器,错误);
refreshLayout=(SwipeRefreshLayout)v.findViewById(R.id.swipe_ActivityEnd);
recyclerView=v.findViewById(R.id.recyclerviewpendingact);
LinearLayoutManager布局管理器=新的LinearLayoutManager(getActivity());
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
新的ItemTouchHelper(ItemTouchHelperCallback).attachToRecyclerView(recyclerView);
//听一听横扫
refreshLayout.setOnRefreshListener(新的SwipeRefreshLayout.OnRefreshListener(){
@凌驾
公共void onRefresh(){
//获取新实例ID令牌
FirebaseUser mUser=mAuth.getInstance().getCurrentUser();
mUser.getIdToken(真)
.addOnCompleteListener(新的OnCompleteListener(){
未完成的公共void(@NonNull任务){
if(task.issusccessful()){
字符串标记=task.getResult().getToken();
//通过HTTPS将令牌发送到后端
getdatafromserver(令牌);
}否则{
//Handle error->task.getException();
w(标记“getInstanceId第二次失败”,task.getException());
}
}
});
刷新项目();
}
});
//获取新实例ID令牌
FirebaseUser mUser=mAuth.getInstance().getCurrentUser();
mUser.getIdToken(真)
.addOnCompleteListener(新的OnCompleteListener(){
未完成的公共void(@NonNull任务){
if(task.issusccessful()){
字符串标记=task.getResult().getToken();
日志d(标签“未完成线索:”+标记);
//通过HTTPS将令牌发送到后端
getdatafromserver(令牌);
}否则{
//Handle error->task.getException();
w(标记“getInstanceId第二次失败”,task.getException());
}
}
});
返回v;
}
public void getdatafromserver(字符串令牌){
//使用curl的新代码
字符串serverurl=“xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx”;
JsonObjectRequest JsonObjectRequest=新的JsonObjectRequest(Request.Method.GET,serverurl,null,
新的Response.Listener(){
@凌驾
公共void onResponse(JSONObject响应){
试一试{
Log.d(标签,“活动列表:”+响应);
JSONObject alldata=response.getJSONObject(“有效负载”);
JSONArray assetarray=alldata.getJSONArray(“活动”);
removeAll(modelclasspendingactList);
for(int i=0;i task.getException();
w(标记“getInstanceId第二次失败”,task.getException());
}
}
});
Log.d(标记“onsweed:position”+viewHolder.getAdapterPosition());
Log.d(标记“onswaped:first list size”+modelclasspendingactList.size());
PendingAtadapter适配器=新的PendingAtadapter(ModelClassPendingAtList);
移除(viewHolder.getAdapterPosition());
removeViewAt(viewHolder.getAdapterPosition());
notifyItemRemoved(viewHolder.getAdapterPosition());
//notifyItemRangeChanged(viewHolder.getAdapterPosition(),modelclasspendingactList.size());
//adapter.notifyDataSetChanged();
Log.d(标记“onswaped:list size”+modelclasspendingactList.size());
//PendingAtadapter适配器=新的PendingAtadapter(ModelClassPendingAtList);
//移除(viewHolder.getAdapterPosition());
//notifyItemRemoved(viewHolder.getAdapterPosition());
}
};
私有无效标记已完成(字符串activeid、字符串标记)
{
//向服务器发送数据
//旋度函数
字符串serverurl=“xxxxxxxxxxxxxxxxxxxx”;
Map jsonParams=newarraymap();
jsonParams.put(“id”,activeid);
jsonParams.put(“活动状态”、“完成”);
jsonParams.put(“targetEmployeeId”、“1001”);
jsonParams.put(“分数”、“1”);
JsonObjectRequest JsonObjectRequest=新的JsonObjectRequest(Request.Method.PUT、serverurl、新的JSONObject(jsonParams),
新的Response.Listener(){
@凌驾
公共void onResponse(JSONObj
pendingactAdapter adapter = new pendingactAdapter(modelclasspendingactList);
RecyclerView recyclerView = view.findViewById(R.id.my_recycler_view);
recyclerView.adapter = adapter;
recyclerView.layoutManager = LinearLayoutManager(getActivity());
modelclasspendingactList.remove(viewHolder.getAdapterPosition());
adapter.notifyItemRemoved(viewHolder.getAdapterPosition());
pendingactAdapter adapter = new pendingactAdapter(modelclasspendingactList);
modelclasspendingactList.remove(viewHolder.getAdapterPosition());