检查String []中的String是否在ArrayList <string>中

Question

我刚刚构建了一个广播接收器,我可以使用它来获取传入的文本消息,而不是在有空格时分割文本消息并将其保存到String[].

现在我需要检查这String[]是否来自我的数据库.为此,我创建了一个ArrayList<String>,它从相应的列中获取所有条目.现在我需要检查ArrayList我String[]的文本消息中的字符串是否与我的字符串相同,但我不知道如何实现.

有没有一种简单快捷的方法来检查,我还需要知道它们中的哪个字符串？

SmileySmsReceiver:

  package de.retowaelchli.filterit.services;


    import java.util.ArrayList;

    import de.retowaelchli.filterit.database.SFilterDBAdapter;
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.database.Cursor;
    import android.os.Bundle;
    import android.telephony.SmsMessage;
    import android.util.Log;
    import android.widget.Toast;



    public class SmileySmsReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) 
        {
            //Datenbank definieren
            SFilterDBAdapter mDbHelper = new SFilterDBAdapter(context);


            //---get the SMS message passed in---
            Log.d("SmileySmsReceiver", "Yes it calls the onReceive");
            Bundle bundle = intent.getExtras();        
            SmsMessage[] msgs = null;
            String str = "";            
            if (bundle != null)
            {
                Log.d("SmileySmsReceiver", "Bundle is not null");
                //---retrieve the SMS message received---
                Object[] pdus = (Object[]) bundle.get("pdus");
                msgs = new SmsMessage[pdus.length];            
                for (int i=0; i<msgs.length; i++){
                    msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);                
                    str += "SMS from " + msgs[i].getOriginatingAddress();                     
                    str += " :";
                    str += msgs[i].getMessageBody().toString();
                    str += "\n";        
                Log.d("SmileySmsReceiver","Was steht in der Nachricht?: " + str);

                String[] splited = str.split("\\s+");

                //Hier werden die Strings der Smileys aus der Datenbank gezogen
                mDbHelper.open();
                Cursor c = mDbHelper.getAllSFilter();

                ArrayList<String> SmileyList = new ArrayList<String>();
                c.getColumnIndex(SFilterDBAdapter.KEYWORD);
                int ColumnIndex = c.getColumnIndex(SFilterDBAdapter.KEYWORD);
                    if(c!=null)
                        {
                        //Hier werden die Smileys in die ArrayList geschrieben
                        while(c.moveToNext()){
                            String infoItem = c.getString( ColumnIndex );
                            SmileyList.add(infoItem);
                        }
<------------------------- FROM HERE ON I NEED YOUR GUYS HELP ------------------------------->
                }
                }
                //---display the new SMS message---
                Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
            }                         
        }
    }

Answer 1

如果你有a String myString和a ArrayList<String> myListOfStrings,你可以检查myString列表中是否有这样的:

myListOfStrings.contains( myString );

这将返回一个布尔值(true/false) - 如果找到字符串则返回true,否则返回false.

在您的情况下,您可能希望运行字符串数组并将它们中的每一个匹配为SmileyList:

for( String s : splitted ) {
   if( SmileyList.contains( s ) ) {
     //Do what you need to do if the string is in the SmileyList.
   }
}