ArrayListでどのように検索するのか？

Question

選択した日付私のカレンダーにいないときは、その時刻に「日付はカレンダーにはありません」というトーストが表示され、トーストには1回だけ表示されます。

String selectedGridDate = CalendarAdapter.dayString.get(position); //Selected Date today 
if (!selectedDate.equals("")) 
{ 
    ArrayList<Bookings> bookingsArrayList = new ArrayList<Bookings>(); 

    for(int i=0; i<bookingsArrayList.size(); i++) 
    { 
     if (bookingsArrayList.get(i).getFor_date().contains(selectedGridDate)) 
     { 
      Toast.makeText(CalendarActivity.this, "Selected Date Have in Calendar", Toast.LENGTH_SHORT).show(); 
     } else { 
      Toast.makeText(CalendarActivity.this, "Selected Date not in Caledar", Toast.LENGTH_SHORT).show(); 
     } 
    } 
} 

これは私がすべてのデータがフォームデータベースを来ているfor_dateでfor_dateを使用しています私のモーダルクラスです...

public class Bookings { 
    String created_at; 
    String for_date; 
    String id; 
    String property_id; 
    String status; 
    String updated_at; 
    String customer_name; 
    String customer_contact; 

    public String getCustomer_name() { 
     return customer_name; 
    } 

    public void setCustomer_name(String customer_name) { 
     this.customer_name = customer_name; 
    } 

    public String getCustomer_contact() { 
     return customer_contact; 
    } 

    public void setCustomer_contact(String customer_contact) { 
     this.customer_contact = customer_contact; 
    } 

    public String getCreated_at() { 
     return created_at; 
    } 

    public void setCreated_at(String created_at) { 
     this.created_at = created_at; 
    } 

    public String getFor_date() { 
     return for_date; 
    } 

    public void setFor_date(String for_date) { 
     this.for_date = for_date; 
    } 

    public String getId() { 
     return id; 
    } 

    public void setId(String id) { 
     this.id = id; 
    } 

    public String getProperty_id() { 
     return property_id; 
    } 

    public void setProperty_id(String property_id) { 
     this.property_id = property_id; 
    } 

    public String getStatus() { 
     return status; 
    } 

    public void setStatus(String status) { 
     this.status = status; 
    } 

    public String getUpdated_at() { 
     return updated_at; 
    } 

    public void setUpdated_at(String updated_at) { 
     this.updated_at = updated_at; 
    } 
} 

Answer 1

あなたの日付文字列を使用して実際の日付に変換します

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd h:m");//this can be your custom format. 

Date start = sdf.parse(selectedGridDate); 
Date end = sdf.parse(bookingsArrayList.get(i).getFor_date()); 

if (start.compareTo(end) == 0) { 
//your dates match 
} 

Answer 2

int count = 0; 
      if (!selectedDate.equals("")) 
      { 
       for(int i=0; i<bookingsArrayList.size(); i++) 
       { 
        String getDate = bookingsArrayList.get(i).getFor_date(); 
        if(getDate.contains(selectedGridDate)) 
        { 
         count++; 
        } 
       } 
       if(count==1) 

       { 
        Toast.makeText(CalendarActivity.this, "Selected Date here", Toast.LENGTH_SHORT).show(); 
       } 
       else 
        Toast.makeText(CalendarActivity.this, "not Selected Date here", Toast.LENGTH_SHORT).show(); 
      }