问题描述
我有一个短信阅读器应用程序，我展示senderno和邮件正文插入自定义列表视图。对于传入的消息我已经注册的广播接收器和填充ListView控件。
I have an SMS reader application and i am showing the senderno and message body into the Custom Listview. For the incoming messages i have registered a broadcast receiver and populating the listView.
每当一个新的消息在广播接收机我能够得到它的到来，但我想传递到活动这一数据。
Whenever a new message is coming in the broadcast Receiver i am able to get it but I want to this data to be passed onto the activity.
在code片段是：
MainActvity.java
public class MainSmsActivity extends Activity{
private ListView smsList;
SmsAdapter smsAdapter;
private SmsDao smsDao;
private List<SmsDao> smsDataList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sms_demo);
smsDataList = new ArrayList<SmsDao>();
Intent intent = new Intent();
intent.setAction("com.mobile.sms.IncomingSms");
sendBroadcast(intent);
populateSms();
}
public void populateSms(){
Uri inboxURI = Uri.parse("content://sms/inbox");
String[] reqCols = new String[] { "_id", "address", "body", "date" };
ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(inboxURI, reqCols, null, null, null);
smsDataList.clear();
for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
smsDao = new SmsDao();
smsDao.setMessageBody(cursor.getString(1));
smsDao.setSenderNo(cursor.getString(2));
smsDao.setMessageTime(cursor.getLong(3));
smsDataList.add(smsDao);
}
smsAdapter = new SmsAdapter(this,smsDataList);
smsList.setAdapter(smsAdapter);
smsAdapter.notifyDataSetChanged();
cursor.close();
}
}
IncomingSms.Java
public class IncomingSms extends BroadcastReceiver {
final SmsManager sms = SmsManager.getDefault();
public void onReceive(Context context, Intent intent) {
final Bundle bundle = intent.getExtras();
try {
if (bundle != 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();
String senderNum = phoneNumber;
String message = currentMessage.getDisplayMessageBody();
int duration = Toast.LENGTH_LONG; // HERE I WANT TO SEND MESSAGE BODY TO THE MAIN ACTIVITY CLASS
Toast toast = Toast.makeText(context,
"senderNum: " + senderNum + ", message: " + message, duration);
toast.show();
} // end for loop
} // bundle is null
} catch (Exception e) {
Log.e("SmsReceiver", "Exception smsReceiver" + e);
}
}
我能够intially收到的所有邮件到列表视图，但我想要的ListView中应该得到自动只要新邮件到达更新。
I am able to receive all the messages intially into the list view but I want that the ListView should get automatically updated as soon as new message arrives.
推荐答案
在您broadcasereceiver做这样的事情：（使用意向）
In your broadcasereceiver do something like this: (use that intent)
public class SMSReceiver extends BroadcastReceiver {
public static final String NOTIFICATION = "receiver_sms";
@Override
public void onReceive(Context context, Intent intent) {
Log.i("onReceive methode", "new SMS Comming");
Bundle myBundle = intent.getExtras();
SmsMessage[] messages = null;
String strMessage = "", address = "";
abortBroadcast();
if (myBundle != null) {
// get message in pdus format(protocol description unit)
Object[] pdus = (Object[]) myBundle.get("pdus");
// create an array of messages
messages = new SmsMessage[pdus.length];
Log.i("onReceive methode", "new SMS Comming");
for (int i = 0; i < messages.length; i++) {
// Create an SmsMessage from a raw PDU.
messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
// get the originating address (sender) of this SMS message in
// String form or null if unavailable
address = messages[i].getOriginatingAddress();
// get the message body as a String, if it exists and is text
// based.
strMessage += messages[i].getMessageBody();
strMessage += "\n";
}
// show message in a Toast
}
// this is what you need
Intent broadcast = new Intent(NOTIFICATION);
broadcast.putExtra("data", strMessage);
LocalBroadcastManager.getInstance(context).sendBroadcast(broadcast);
}
然后注册UR接收器乌尔活动
and then register ur receiver in ur activity
public BroadcastReceiver receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.e(tag, "SMS Received.");
// Intent i = getIntent();
Bundle b = intent.getBundleExtra("SMS");
// String bun = b.getString("MyData");
Log.i(tag, "Bundle: " + b);
String str = intent.getStringExtra("data");
parseSMSData(str);
}
};
然后在onResume（）：
and then in onResume():
@Override
protected void onResume() {
super.onResume();
LocalBroadcastManager.getInstance(this).registerReceiver(receiver,
new IntentFilter(SMSReceiver.NOTIFICATION));
}
和中的onDestroy（），您必须取消注册接收这样的：
and in onDestroy() you must unregister that receiver like this:
@Override
protected void onDestroy() {
// Unregister since the activity is about to be closed.
LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver);
super.onDestroy();
}
，也不要忘了在应用程序标记添加这个在乌拉圭回合清单文件：
and also don't forget to add this in ur manifest file in application tag:
<receiver android:name=".SMSBroadcastReceiver">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED"></action>
</intent-filter>
</receiver>
这篇关于从BroadCastRecevier将数据传递到活动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！