Android中监听短信的两种方法

1、监听广播

缺点，因为优先级的原因可能接收不到。

代码:

public static final String TAG = "ImiChatSMSReceiver";
  public static final String SMS_RECEIVED_ACTION = "android.provider.Telephony.SMS_RECEIVED";
  public void onReceive(Context context, Intent intent)
  {
    if (intent.getAction().equals(SMS_RECEIVED_ACTION))
    {
      SmsMessage[] messages = getMessagesFromIntent(intent);
      for (SmsMessage message : messages)
      {
        String text = message.getOriginatingAddress() + " : " +
        message.getDisplayOriginatingAddress() + " : " +
        message.getDisplayMessageBody() + " : " +
        message.getTimestampMillis();
        String num = message.getOriginatingAddress();
        Log.i(TAG, "-------------" + text);
        Toast.makeText(context, text, Toast.LENGTH_LONG).show();
        sendMessage(num, "来自" + num + "的短信已经收到", context);
        context.getContentResolver().registerContentObserver(Uri.parse("content://sms/"), true, new SmsObserver(new Handler(), context));
      }
    }
  }
  public void sendMessage(String num, String text, Context context)
  {
    SmsManager smsManager = SmsManager.getDefault();
    PendingIntent sentIntent = PendingIntent.getBroadcast(context, 0, new Intent(), 0);
    String strContent = text;
    smsManager.sendTextMessage(num, null, strContent, sentIntent, null);
    TelephonyManager tl = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    int itype = tl.getPhoneType();
    Log.i(TAG, "-------------" + "当前卡类型为：" + itype);
    if (itype == TelephonyManager.PHONE_TYPE_GSM)
    {
      Toast.makeText(context, "当前卡类型为：GSM", Toast.LENGTH_LONG).show();
    }
    else if (itype == TelephonyManager.PHONE_TYPE_CDMA)
    {
      Toast.makeText(context, "当前卡类型为 : CDMA", Toast.LENGTH_LONG).show();
    }
    else if (itype == TelephonyManager.PHONE_TYPE_NONE)
    {
      Toast.makeText(context, "当前卡类型为：NONE", Toast.LENGTH_LONG).show();
    }
  }
  public final SmsMessage[] getMessagesFromIntent(Intent intent)
  {
    Object[] messages = (Object[]) intent.getSerializableExtra("pdus");
    byte[][] pduObjs = new byte[messages.length][];
    for (int i = 0; i < messages.length; i++)
    {
      pduObjs[i] = (byte[]) messages[i];
    }
    byte[][] pdus = new byte[pduObjs.length][];
    int pduCount = pdus.length;
    SmsMessage[] msgs = new SmsMessage[pduCount];
    for (int i = 0; i < pduCount; i++)
    {
      pdus[i] = pduObjs[i];
      msgs[i] = SmsMessage.createFromPdu(pdus[i]);
    }
    return msgs;
  }

2、采用观察方法，监听短信数据库

public class SmsObserver extends ContentObserver
{
  private Context mContext;
  public SmsObserver(Handler handler , Context context)
  {
    super(handler);
    mContext = context;
  }
  public void onChange(boolean selfChange) 
  { 
    super.onChange(selfChange); 
    Cursor cursor =null; 
    try
    {
      //读取收件箱中的短信 
      cursor = mContext.getContentResolver().query(Uri.parse("content://sms/inbox"), null, null, null, "date desc"); 
      String body;
      boolean hasDone =false;
      if (cursor !=null)
      { 
        while (cursor.moveToNext())
        {
          body = cursor.getString(cursor.getColumnIndex("body"));
          if(body !=null)//&& body.equals("【startMyActivity】"
          {
            hasDone =true;
            break;
          }
          if (hasDone)
          {
            break;
          }
        } 
      } 
    }
    catch(Exception e)
    {
      e.printStackTrace();
    }
    finally
    {
      if(cursor!=null)    cursor.close();
    }
  }
}

用到的权限：

<uses-permission android:name="android.permission.SEND_SMS" />
  <uses-permission android:name="android.permission.RECEIVE_SMS" />
  <uses-permission android:name="android.permission.READ_SMS" />

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