Android 如何将数据从广播接收器传递到活动？

我有一个

BroadcastReceiver

类，它读取传入的

sms

，并从

sms

中提取pin码。 我想将该

sms

传递给用户已经可见的活动。 用户应在

EditText

中输入pin，我从中的

EditText

中获取值，将用户输入的pin与

广播接收器传递的pin进行比较。如果两者都匹配，用户可以进入应用程序。但我不知道如何将
广播接收器
接收到的Pin码传递到
活动
。
这是密码

广播接收机类

public class IncomingMessage extends BroadcastReceiver {

final SmsManager sms = SmsManager.getDefault();
private OnSMSReceived onSMSReceived = null;

@Override
public void onReceive(Context context, Intent intent) {

    // Retrieves a map of extended data from the intent.
    final Bundle bundle = intent.getExtras();

    try {

        if (bundle != null) {

            String senderNum = null;
            String message = null;
            final Object[] pdusObj = (Object[]) bundle.get("pdus");

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

                SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]);
                String phoneNumber = currentMessage.getDisplayOriginatingAddress();

                senderNum = phoneNumber;
                message = currentMessage.getDisplayMessageBody();

                Log.i("SmsReceiver", "senderNum: " + senderNum + "; message: " + message);

            }

            if (senderNum.equals("ideamart")) {
                Log.d("MessageIdeaMart", message);

            } else if (senderNum.equals("FindDroid")) {
                if (message.startsWith("Welcome")) {
                    String[] splitArray = message.split(" ");
                    String pin = splitArray[7];
                    Log.d("PIN", pin);

                }
            }
        }
    } catch (Exception e) {
        Log.e("SmsReceiver", "Exception smsReceiver" + e);

    }
}


public void setOnSmsReceivedListener(Context context) {
    this.onSMSReceived = (OnSMSReceived) context;
}


public interface OnSMSReceived {
    void onSMSReceived(String pin);
}

公共类IncomingMessage扩展了BroadcastReceiver{
final smsmsmanager sms=smsmsmanager.getDefault（）；
私有onsmserved onsmserved=null；
@凌驾
公共void onReceive（上下文、意图）{
//从意图检索扩展数据的映射。
final Bundle=intent.getExtras（）；
试一试{
if（bundle！=null）{
字符串senderNum=null；
字符串消息=null；
最终对象[]pdusObj=（对象[]）bundle.get（“pdus”）；
对于（int i=0；i

}
您可以在活动中创建动态广播接收器：

BroadcastReceiver receiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    Toast.makeText(context, "Received Broadcast", Toast.LENGTH_SHORT).show();
  }
};

@Override
protected void onResume() {
  super.onResume();
  // Register the receiver
  String action = "com.SOME_BROADCAST";
  registerReceiver(mReceiver, new IntentFilter(action));
}

@Override
protected void onPause() {
  super.onPause();
  // Unregister the receiver to save unnecessary system overhead
  // Paused activities cannot receive broadcasts anyway
  unregisterReceiver(mReceiver);
}

您已经在BroadcastReceiver类中定义了一个侦听器。那个听众的目的是什么

实际将数据传递给活动的方式


利用监听器，当你收到短信时通知监听器
将BroadcastReceiver作为活动的内部类
我认为，您还可以使用意图将数据传递给活动
您必须制作一个广播接收器并在活动中注册它。
通过其onReceive方法，您可以执行UI更改。
或者，如果存在数据或捆绑包，您也可以从intent获取数据或捆绑包

BroadcastReceiver receiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    TextView tv=(TextView)findViewById(R.id.tv);
    tv.setText("Hello");
  }
};

@Override
protected void onResume() {
  super.onResume();
  registerReceiver(receiver, new IntentFilter("my.custom.action"));
}

@Override
protected void onPause() {
  super.onPause();
  unregisterReceiver(receiver);
}

在
IncomingMessage

将您的
设置msreceivedListener
方法设置为静态，并将其签名更改为：

public static void setOnSmsReceivedListener(OnSMSReceived onSMSReceived) {
onSMSReceived = onSMSReceived;
}

您的接口：（更改方法名称以避免混淆）

然后，当您的
senderNum
匹配时，执行此操作（在您获得pin后）

在您的活动中，请执行以下操作：

IncomingMessage.setOnSmsReceivedListener(new OnSMSReceived(){
        @Override
        public void messageReceived(String pin) {
          // get the pin from EditText which is entered by user
          // match it with the one you are getting here
        }
})

嘿，只需在所需的活动中创建一个广播接收器类。分别在onResume和onPause中注册和注销它。现在，当您在那个时候发送广播时，请使用和您在创建内部活动时对广播所做的相同的操作。若它是作为单独的类编写的，请在清单中注册接收方
onSMSReceived.smsReceived(pin);

IncomingMessage.setOnSmsReceivedListener(new OnSMSReceived(){
        @Override
        public void messageReceived(String pin) {
          // get the pin from EditText which is entered by user
          // match it with the one you are getting here
        }
})