ListView and items with countdown timer

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有刺的猬
有刺的猬 2021-01-12 02:16

i have a issue with my Listview, i want to set a countdown timer to all ListView\'s items, and i allready have googled a solution for this, but it isn\'t work correctly. The

2条回答
  •  不要未来只要你来
    2021-01-12 02:16

    You can use the recyclerview. Download source code from here ()

    activity_main.xml

    
    
     
    
     
    

    MainActivity.java

    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);
        }
    }
    

    adapter_layout.xml

    
    
    
        
    
     
    

    Custom Adapter:

    package com.androidsolutionworld.multipletimer;
    
    
    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();
        }
    
    
    
    }
    

    Thanks!

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