Come gestire più timer per il conto alla rovescia in RecyclerView?

Question

Ho un Recyclerview e ho bisogno di visualizzare un conto alla rovescia su ogni riga.

Ecco una domanda simile coutndown timers in listview Ha una buona soluzione, ma ho bisogno che con recyclerview

Ha una buona soluzione, ma ho bisogno che con recyclerview

Modifica:

quello che cercavo, ecco il mio codice Adattatore MyAdapter:

public class AdapterItems extends RecyclerView.Adapter<RecyclerView.ViewHolder> { 

private ArrayList<TopCompetitions> mListItems = new ArrayList<>(); 
private ImageLoader mImageLoader; 
private Context context; 
private Handler handler; 
/******************************************/ 
String current_date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()); 
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
Date d1 = null; 
Date d2 = null; 
long diff; 
long diffSeconds; 
long diffMinutes; 
long diffHours; 
long diffDays; 

String reachableDate = ""; 
/******************************************/ 
private ScheduledFuture updateFuture; 

public AdapterItems(Context context) { 

    this.context = context; 
    mImageLoader = AppController.getInstance().getImageLoader(); 

} 

public void setmListItems(ArrayList<TopCompetitions> mListItems) { 
    this.mListItems = mListItems; 
    //update the adapter to reflect the new set of mListItems 
    notifyDataSetChanged(); 
} 


@Override 
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 


    View itemView = LayoutInflater. 
      from(parent.getContext()). 
      inflate(R.layout.custom_horizontal_row, parent, false); 
    return new ItemHolder(itemView); 


} 

@Override 
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { 


    final TopCompetitions currentItem = mListItems.get(position); 
    final ItemHolder itemHolder = (ItemHolder) holder; 

    /* start_date , name_com_ar , name_com_en, 
      question_en,answer_ar1,answer_ar2,answer_ar3 
      ,answer_en1,answer_en2,answer_en3,right_answer; 
    */ 
    itemHolder.item_id.setText(currentItem.getPrize_id()); 
    itemHolder.item_description.setText(currentItem.getName_com_ar()); 
    itemHolder.start_date.setText(currentItem.getStart_date()); 
    itemHolder.end_date.setText(currentItem.getEnd_date()); 
    itemHolder.name_com_ar.setText(currentItem.getName_com_ar()); 
    itemHolder.name_com_en.setText(currentItem.getName_com_en()); 
    itemHolder.answer_en1.setText(currentItem.getAnswer_en1()); 
    itemHolder.answer_en2.setText(currentItem.getAnswer_en2()); 
    itemHolder.answer_en3.setText(currentItem.getAnswer_en3()); 
    itemHolder.answer_ar1.setText(currentItem.getAnswer_ar1()); 
    itemHolder.answer_ar2.setText(currentItem.getAnswer_ar2()); 
    itemHolder.answer_ar3.setText(currentItem.getAnswer_ar3()); 
    itemHolder.right_answer.setText(currentItem.getRight_answer()); 
    itemHolder.question_en.setText(currentItem.getQuestion_en()); 
    itemHolder.question_ar.setText(currentItem.getQuestion_ar()); 
    itemHolder.desc_ar.setText(currentItem.getPrize_desc_ar()); 
    itemHolder.desc_en.setText(currentItem.getPrize_desc_en()); 

    String urlLogo = currentItem.getPrize_pic1(); 
    loadImages(urlLogo, itemHolder); 
    setDefferinceTimer(itemHolder , currentItem.getEnd_date()); 


    if (updateFuture == null) { 
     final Handler mainHandler = new Handler(Looper.getMainLooper()); 
     updateFuture = Executors.newSingleThreadScheduledExecutor().scheduleAtFixedRate(new Runnable() { 
      @Override 
      public void run() { 
       setDefferinceTimer(itemHolder , currentItem.getEnd_date()); 
       notifyDataSetChanged(); 
       mainHandler.post(new Runnable() { 
        @Override 
        public void run() { 
         notifyDataSetChanged(); 
        } 
       }); 
      } 
     }, 0, 1000, TimeUnit.MILLISECONDS); 
    } 

    /* new Handler(Looper.getMainLooper()).post(new Runnable() { 
     @Override 
     public void run() { 
      new CountDownTimer(20000, 1000) { 

       public void onTick(long millisUntilFinished) { 
        startCountDown(itemHolder, currentItem.getEnd_date() + " 00:00:00"); 
        notifyDataSetChanged(); 
       } 

       public void onFinish() { 
        //counterTextView.setText("done!"); 
       } 
      }.start(); 
     } 
    }); 
     */ 

} 

public void setDefferinceTimer(final RecyclerView.ViewHolder holder , String itemEndDate){ 

    final ItemHolder itemHolder = (ItemHolder) holder; 

    current_date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()); 
    // reachableDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(itemEndDate); 

    try { 
     d1 = format.parse(current_date); 
     d2 = format.parse(itemEndDate+" 00:00:00"); 
    } catch (ParseException e) { 
     e.printStackTrace(); 
    } 

    diff = d2.getTime() - d1.getTime(); 

    diffSeconds = diff/1000 % 60; 
    diffMinutes = diff/(60 * 1000) % 60; 
    diffHours = diff/(60 * 60 * 1000) % 24; 
    diffDays = diff/(24 * 60 * 60 * 1000); 

    itemHolder.days_tf.setText(""+diffDays); 
    itemHolder.hours_tf.setText(""+diffHours); 
    itemHolder.minutes_tf.setText(""+diffMinutes); 
    itemHolder.seconds_tf.setText(""+diffSeconds); 

} 

private void loadImages(String urlThumbnail, final RecyclerView.ViewHolder holder) { 
    final ItemHolder itemHolder = (ItemHolder) holder; 
    mImageLoader.get(urlThumbnail, new ImageLoader.ImageListener() { 
     @Override 
     public void onResponse(ImageLoader.ImageContainer response, boolean isImmediate) { 
      itemHolder.item_image.setImageBitmap(response.getBitmap()); 
      //holder.salon_gender.setImageBitmap(response.getBitmap()); 
     } 

     @Override 
     public void onErrorResponse(VolleyError error) { 

     } 
    }); 
} 


@Override 
public int getItemCount() { 
    return mListItems.size(); 
} 


private class ItemHolder extends RecyclerView.ViewHolder { 

    public TextView item_id, item_description, end_date, 
      start_date, name_com_ar, name_com_en, question_ar, 
      question_en, answer_ar1, answer_ar2, answer_ar3, answer_en1, 
      answer_en2, answer_en3, right_answer , desc_ar , desc_en; 
    public TextView days_tf, hours_tf, minutes_tf, seconds_tf; 
    public CircleImageView item_image; 

    public ItemHolder(View itemView) { 
     super(itemView); 

     start_date = (TextView) itemView.findViewById(R.id.start_date); 
     end_date = (TextView) itemView.findViewById(R.id.end_date); 
     name_com_ar = (TextView) itemView.findViewById(R.id.name_com_ar); 
     name_com_en = (TextView) itemView.findViewById(R.id.name_com_en); 
     question_en = (TextView) itemView.findViewById(R.id.question_en); 
     question_ar = (TextView) itemView.findViewById(R.id.question_ar); 
     desc_ar = (TextView) itemView.findViewById(R.id.desc_ar); 
     desc_en = (TextView) itemView.findViewById(R.id.desc_en); 
     answer_ar1 = (TextView) itemView.findViewById(R.id.answer_ar1); 
     answer_ar2 = (TextView) itemView.findViewById(R.id.answer_ar2); 
     answer_ar3 = (TextView) itemView.findViewById(R.id.answer_ar3); 
     answer_en1 = (TextView) itemView.findViewById(R.id.answer_en1); 
     answer_en2 = (TextView) itemView.findViewById(R.id.answer_en2); 
     answer_en3 = (TextView) itemView.findViewById(R.id.answer_en3); 
     right_answer = (TextView) itemView.findViewById(R.id.right_answer); 


     item_id = (TextView) itemView.findViewById(R.id.item_id); 
     item_description = (TextView) itemView.findViewById(R.id.item_description); 
     item_image = (CircleImageView) itemView.findViewById(R.id.item_image); 


     days_tf = (TextView) itemView.findViewById(R.id.days_tf); 
     hours_tf = (TextView) itemView.findViewById(R.id.hours_tf); 
     minutes_tf = (TextView) itemView.findViewById(R.id.minutes_tf); 
     seconds_tf = (TextView) itemView.findViewById(R.id.seconds_tf); 

    } 



} 

Answer 1

aggiungere un membro CountDownTimer nel ViewHolder. In getView() impostare e avviare il contatore e non dimenticare di cancellare uno esistente nella stessa istanza di ViewHolder. In onTick() è necessario aggiornare il valore sul display, non avviare il contatore.

Answer 2

la soluzione più semplice sarebbe:

Handler handler=new Handler(); 
handler.postDelayed(new UpdateTimerThread(holder),0); 

public Class UpdateTimerThread implements Runnable{ 
Holder holder; 

    public UpdateTimerThread(Holder holder){ 
     this.holder=holder; 
    } 
    @Override 
    public void run() { 
     lgetCreatedTime = lgetCreatedTime + 1000; 
     long diffSeconds; 
     long diffMinutes; 
     long diffHours; 
     diffSeconds = lgetCreatedTime/1000 % 60; 
     diffMinutes = lgetCreatedTime/(60 * 1000) % 60; 
     diffHours = lgetCreatedTime/(60 * 60 * 1000) % 24; 
     holder.GameTimer.setText(String.format("%02d:%02d:%02d", diffHours, diffMinutes, diffSeconds)); 
     handler.postDelayed(this,1000); 
    } 
} 

Nota: 1.holder è l'oggetto della classe ViewHolder

2.Creare un UpdateTimerThread classe implementa Runnable

3.Convert Data e Tempo di attesa e archiviazione in lgetCreatedTime

4. Gestore di marcia ogni 1 secondo per selezionare il tempo

Answer 3

Qui è possibile controllare e scaricare il codice sorgente di Countdown timers in a RecyclerView

activity_main.xml

<RelativeLayout android:layout_width=”match_parent” 
android:layout_height=”match_parent” 
xmlns:android=”http://schemas.android.com/apk/res/android”&gt; 

<android.support.v7.widget.RecyclerView 
android:id=”@+id/recycler_view” 
android:layout_width=”match_parent” 
android:layout_height=”wrap_content” 
android:scrollbars=”vertical” /> 

</RelativeLayout> 

adapter_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="match_parent" 
android:layout_height="wrap_content"> 

<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textSize="15dp" 
    android:padding="10dp" 
    android:id="@+id/tv_timer"/> 

</LinearLayout> 

MainActivity.java

01.235.

package com.androidsolutionworld.multipletimer; 

import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.widget.LinearLayout; 
import java.util.ArrayList; 

public class MainActivity extends AppCompatActivity { 
private RecyclerView recyclerView; 
private ArrayList al_data = new ArrayList<>(); 
private Adapter obj_adapter; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    recyclerView = (RecyclerView)findViewById(R.id.recycler_view); 
    al_data.add("1234"); 
    al_data.add("1257"); 
    al_data.add("100"); 
    al_data.add("1547"); 
    al_data.add("200"); 
    al_data.add("500"); 
    al_data.add("2000"); 
    al_data.add("1000"); 

    obj_adapter = new Adapter(al_data); 
    LinearLayoutManager layoutManager = new LinearLayoutManager(getApplicationContext(),LinearLayoutManager.VERTICAL,false); 
    recyclerView.setLayoutManager(layoutManager); 
    recyclerView.setAdapter(obj_adapter); 
} 
} 

adattatore personalizzato:

import android.os.CountDownTimer; 
import android.support.v7.widget.RecyclerView; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.TextView; 
import java.util.ArrayList; 

public class Adapter extends RecyclerView.Adapter{ 

private ArrayList al_data; 

public class MyViewHolder extends RecyclerView.ViewHolder{ 
    public TextView tv_timer; 
    CountDownTimer timer; 

    public MyViewHolder (View view){ 
     super(view); 
     tv_timer = (TextView)view.findViewById(R.id.tv_timer); 

    } 


} 

public Adapter(ArrayList al_data) { 
    this.al_data = al_data; 
} 

@Override 
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.adapter_layout,parent,false); 


    return new MyViewHolder(view); 
} 

@Override 
public void onBindViewHolder(final MyViewHolder holder, int position) { 

    holder.tv_timer.setText(al_data.get(position)); 

    if (holder.timer != null) { 
     holder.timer.cancel(); 
    } 
    long timer = Long.parseLong(al_data.get(position)); 

    timer = timer*1000; 

    holder.timer = new CountDownTimer(timer, 1000) { 
     public void onTick(long millisUntilFinished) { 
      holder.tv_timer.setText("" + millisUntilFinished/1000 + " Sec"); 
     } 

     public void onFinish() { 
      holder.tv_timer.setText("00:00:00"); 
     } 
    }.start(); 


} 

@Override 
public int getItemCount() { 
    return al_data.size(); 
} 

} 

Answer 4

È possibile creare di riferimento CountDownTimer in classe ViewHolder e creare la sua istanza di metodo onBindViewHolder di adattatore.

Funziona perfettamente.

Tested Myself.