广播接收器代码：

public class SmsReceiver extends BroadcastReceiver {

  private SmsMessage[] mMges;

  private static final String TAG = "SmsReceiver";

  @Override

  public void onReceive(Context context, Intent intent) {

    if (intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")) {

      StringBuffer msgText = new StringBuffer();

      String sender =null;

      //获取Bundle

      Bundle bundle = intent.getExtras();

      if (bundle != null) {

        //获取短信内容

        Object[] pdus = (Object[]) bundle.get("pdus");

        //构建短信对象数组

        mMges = new SmsMessage[pdus.length];

        for (int i = 0; i < pdus.length; i++) {

          mMges[i] = SmsMessage.createFromPdu((byte[])pdus[i]);

        }

        for (SmsMessage mge : mMges) {

          msgText.append("短信来自："+mge.getDisplayOriginatingAddress()+"\n");

          msgText.append("短信内容"+mge.getDisplayMessageBody());

          //如果发送人是5555，拦截该短信

          sender = mge.getDisplayOriginatingAddress();

          Log.d(TAG, "address->"+sender);

          if ("5555".equals(sender)) {

            abortBroadcast();

            Log.d(TAG, "黑名单号码，已经拦截");

          }

        }

        Toast.makeText(context,msgText.toString(),Toast.LENGTH_LONG).show();

      }

    }

  }

}

注册广播及申请权限：

@RequiresApi(api = Build.VERSION_CODES.M)

public class MainActivity extends AppCompatActivity {

  private static final int REQUEST_CODE = 1;

  private IntentFilter mIntentFilter;

  private SmsReceiver mSmsReceiver;

  private static final String TAG = "MainActivity";

  @Override

  protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    checkPermission();

    RegisterSmsReceiver();

  }

  private void checkPermission() {

    int result_receiver = checkSelfPermission(Manifest.permission.RECEIVE_SMS);

    int result_read = checkSelfPermission(Manifest.permission.READ_SMS);

    if (result_receiver!= PackageManager.PERMISSION_GRANTED || result_read!=PackageManager.PERMISSION_GRANTED) {

      requestPermissions(new String[]{Manifest.permission.RECEIVE_SMS,Manifest.permission.READ_SMS},REQUEST_CODE);

    }

  }

  private void RegisterSmsReceiver() {

    mSmsReceiver = new SmsReceiver();

    mIntentFilter = new IntentFilter();

    mIntentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");

    mIntentFilter.setPriority(9999);

    mIntentFilter.addCategory(Intent.CATEGORY_DEFAULT);

    registerReceiver(mSmsReceiver, mIntentFilter);

  }

  @Override

  protected void onDestroy() {

    if (mSmsReceiver != null) {

      unregisterReceiver(mSmsReceiver);

    }

    super.onDestroy();

  }

}

打印的日志：

2020-03-17 16:39:29.431 22422-22422/com.example.smsreceiverdemo D/SmsReceiver: address->5555

2020-03-17 16:39:29.431 22422-22422/com.example.smsreceiverdemo D/SmsReceiver: 黑名单号码，已经拦截

用的是5555号码测试的，模拟器上依然能够收到短信