我有一个列表视图，其中每个项目都有一个倒计时。我想在特定时间到达时设置通知。
这是我通常设置通知的方式：
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, "")
.setSmallIcon(R.drawable.refreshicon)
.setContentTitle("Notification")
.setContentText("Hurry up!")
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
notificationManager.notify(0, mBuilder.build());
这是我的适配器类：
public class TicketAdapter extends ArrayAdapter<TicketModel> implements View.OnClickListener{
private ArrayList<TicketModel> dataSet;
Context mContext;
// View lookup cache
private class ViewHolder {
TextView txtName;
TextView txtType;
TextView txtTempsRestant;
TextView txtDate;
TextView txtSLA;
ImageView info;
RelativeLayout layout;
boolean isSLAlate = false;
Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
Bundle bundle = msg.getData();
long timeLeftMS = bundle.getLong("time");
String Nom = bundle.getString("name");
int day = (int) ((timeLeftMS / (24*3600000)));
int hour = (int) ((timeLeftMS / (1000*60*60)) % 24);
int minute = (int) ((timeLeftMS / (60000)) % 60);
int seconde = (int)timeLeftMS % 60000 / 1000;
String timeLeftText = "";
if (day<10) timeLeftText += "0";
timeLeftText += day;
timeLeftText += ":";
if (hour<10) timeLeftText += "0";
timeLeftText += hour;
timeLeftText += ":";
if (minute<10) timeLeftText += "0";
timeLeftText += minute;
timeLeftText += ":";
if (seconde<10) timeLeftText += "0";
timeLeftText += seconde;
txtTempsRestant.setText(timeLeftText);
if (timeLeftMS == getMSfromTime("00:00:05:00")){
// I want to set a notification right here !
}
info.setImageResource(getIconUrgence(timeLeftMS));
}
};
Handler handlerLate = new Handler(){
@Override
public void handleMessage(Message msg) {
txtTempsRestant.setText("En retard");
txtTempsRestant.setTextColor(Color.parseColor("#434343"));
layout.setBackgroundColor(Color.parseColor("#3caa0000"));
info.setImageResource(R.drawable.haute);
}
};
Handler handlerAttente = new Handler(){
@Override
public void handleMessage(Message msg) {
txtTempsRestant.setText("En attente...");
txtTempsRestant.setTextColor(Color.parseColor("#434343"));
layout.setBackgroundColor(Color.parseColor("#949494"));
info.setImageResource(R.drawable.enattente);
}
};
public void startTimer(long timeLeftMS, String statut, final String Nom) {
if(statut.equals("4")){
handlerAttente.sendEmptyMessage(0);
}
else{
if (timeLeftMS<0){
handlerLate.sendEmptyMessage(0);
}
else{
CountDownTimer countDownTimer = new CountDownTimer(timeLeftMS, 1000) {
@Override
public void onTick(long l) {
Bundle bundle = new Bundle();
bundle.putLong("time", l);
bundle.putString("name", Nom);
Message message = new Message();
message.setData(bundle);
handler.sendMessage(message);
}
@Override
public void onFinish() {
handlerLate.sendEmptyMessage(0);
}
}.start();
}
}
}
}
public TicketAdapter(ArrayList<TicketModel> data, Context context) {
super(context, R.layout.row_item_ticket, data);
this.dataSet = data;
this.mContext=context;
}
@Override
public void onClick(View v) {
int position=(Integer) v.getTag();
Object object= getItem(position);
TicketModel TicketModel=(TicketModel)object;
switch (v.getId())
{
case R.id.item_info:
Snackbar.make(v, "is Late? : " +TicketModel.isTicketEnRetard(), Snackbar.LENGTH_LONG)
.setAction("No action", null).show();
break;
}
}
private int lastPosition = -1;
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Get the data item for this position
TicketModel TicketModel = getItem(position);
// Check if an existing view is being reused, otherwise inflate the view
final ViewHolder viewHolder; // view lookup cache stored in tag
final View result;
if (convertView == null) {
viewHolder = new ViewHolder();
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.row_item_ticket, parent, false);
viewHolder.txtName = (TextView) convertView.findViewById(R.id.titreTV);
viewHolder.txtDate = (TextView) convertView.findViewById(R.id.dateTV);
viewHolder.txtSLA = (TextView) convertView.findViewById(R.id.slaTV);
viewHolder.txtTempsRestant = (TextView) convertView.findViewById(R.id.SLARestantTV);
viewHolder.info = (ImageView) convertView.findViewById(R.id.item_info);
viewHolder.layout = (RelativeLayout) convertView.findViewById(R.id.backgroundRow);
long timeLeft = Long.valueOf(TicketModel.getTempsRestantTicket());
String Statut = TicketModel.getStatut();
String Nom = TicketModel.getTitreTicket();
result=convertView;
//viewHolder.startTimer(Long.valueOf(TicketModel.getTempsRestantTicket()));
viewHolder.startTimer(timeLeft, Statut, Nom);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
result=convertView;
}
Animation animation = AnimationUtils.loadAnimation(mContext, (position > lastPosition) ? R.anim.up_from_bottom : R.anim.down_from_top);
result.startAnimation(animation);
lastPosition = position;
viewHolder.txtName.setText(TicketModel.getTitreTicket());
viewHolder.txtDate.setText(TicketModel.getDateTicket());
viewHolder.txtSLA.setText(TicketModel.getSlaTicket());
viewHolder.info.setOnClickListener(this);
viewHolder.info.setTag(position);
System.out.println("Here : "+TicketModel.getTitreTicket()); //getting each item's name
System.out.println("Time = "+TicketModel.getTempsRestantTicket()); //getting each item's time left and it's correct
System.out.println("Rebours = "+calculRebours(Long.valueOf(TicketModel.getTempsRestantTicket())));
// Return the completed view to render on screen
return convertView;
}
private long getMSfromTime(String timeLeftText) {
long timeMS = 0;
//"00:01:21"
String days = timeLeftText.substring(0, 2);
String hours = timeLeftText.substring(3, 5);
String minutes = timeLeftText.substring(6, 8);
String seconds = timeLeftText.substring(9, 11);
//System.out.println("hours = "+hours+" | minutes = "+minutes+" | seconds = "+seconds);
long daysMS = 24*60*60*1000*Long.valueOf(days);
long hoursMS = 3600000*Long.valueOf(hours);
long minutesMS = 60000*Long.valueOf(minutes);
long secondsMS = 1000*Long.parseLong(seconds);
timeMS = daysMS + hoursMS + minutesMS + secondsMS;
return timeMS;
}
}
我已经指定了要设置通知的位置。我不知道它是否无效，因为它是一个非活动类，我还尝试通过从MainActivity调用方法来设置通知，但没有