Question

我正在尝试刷新一个关于BroadcastReceiver的ListView onReceive。在我的主要活动中，其中包含我正在谈论的ListView，我正在注册一个接收器：

private final BroadcastReceiver smsIntentReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
        String mAction = intent.getAction();

        if(mAction.equals(INCOMING_SMS_ACTION)) {
            Log.v(runtimeVars.getMyName(), "reloading conversation list");
            curConversation = managedQuery(conversationURI, null, null, null, "date DESC");
            conversationAdapter = null;
            listConversations();
        }
    }
};

listConversations（）看起来像那样

private void listConversations() {
    Uri smsURI;
    Uri personURI;
    Cursor curSms;
    Cursor curPerson;
    long personID;

    curConversation = managedQuery(conversationURI, null, null, null, "date DESC");
    conversationArrayList = new ArrayList<ConversationListObj>();
    this.conversationAdapter = new ConversationListAdapter(this, R.layout.conversationlist_item, conversationArrayList);
    setListAdapter(this.conversationAdapter);

    Log.v(runtimeVars.getMyName(), "listConversations");

    startManagingCursor(curConversation);
    for(curConversation.moveToFirst(); !curConversation.isAfterLast(); curConversation.moveToNext()) {
        smsURI = Uri.parse("content://sms/conversations/" + curConversation.getString(curConversation.getColumnIndexOrThrow("thread_id")).toString());
        curSms = managedQuery(smsURI, null, null, null, null);
        conversationArrayList = new ArrayList<ConversationListObj>();
        ConversationListObj newListObj = new ConversationListObj();

        newListObj.setThreadID(curConversation.getString(curConversation.getColumnIndexOrThrow("thread_id")).toString());
        if (curSms.moveToFirst()) {
            personURI = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(curSms.getString(curSms.getColumnIndex("address"))));
            curPerson = managedQuery(personURI, new String[] {ContactsContract.PhoneLookup.DISPLAY_NAME, ContactsContract.PhoneLookup._ID}, null, null, null);
            startManagingCursor(curPerson);

            if(curPerson.moveToFirst()) {
                personID = Long.parseLong(curPerson.getString(curPerson.getColumnIndex(ContactsContract.PhoneLookup._ID)));
                Bitmap contactPicture = generalMethods.loadContactPhoto(getContentResolver(), personID);
                if (contactPicture != null)
                    newListObj.setSenderPicture(contactPicture);
                else {      
                    InputStream input = this.getResources().openRawResource(R.drawable.person_dummy);
                    newListObj.setSenderPicture(BitmapFactory.decodeStream(input));
                }
                newListObj.setSenderName(curPerson.getString(curPerson.getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME)));
            }
            else {
                newListObj.setSenderName(curSms.getString(curSms.getColumnIndex("address")));
            }
            newListObj.setMessagePart(curConversation.getString(curConversation.getColumnIndexOrThrow("snippet")).toString());
            conversationArrayList.add(newListObj);
            notifyConversationAdapter();
        }
    }
    curConversation.close();
}

现在，每当我收到短信时，好像我的BroadcastReceiver太快了。在我重新启动应用程序之前，新文本消息不会显示。所以我基本上认为我犯了一个设计错误，但它怎么会是正确的？查看日志文件告诉我

08-29 13:08:44.351: VERBOSE/SotapannaSMS(704): reloading conversation list
08-29 13:08:45.091: VERBOSE/SotapannaSMS(704): listConversations
08-29 13:08:45.921: VERBOSE/Telephony(171): getOrCreateThreadId uri: content://mms-sms/threadID?recipient=5556
08-29 13:08:46.081: INFO/NotificationService(59): enqueueToast pkg=info.SotapannaSMS.messaging callback=android.app.ITransientNotification$Stub$Proxy@43dbff88 duration=0
08-29 13:08:46.571: VERBOSE/Telephony(171): getOrCreateThreadId cursor cnt: 1

在重新启动应用之前，新的短信似乎不在此对话中。我甚至试图让我的应用程序睡3秒钟，看看是否只是等待一会儿，但结果却相同。

我错过了什么？

Answer 1

Android仅在onReceive完成后才存储消息。

如果您将onReceive呼叫暂停2秒钟，则消息将在2秒后保存。启动一个新线程，然后在那里睡觉。你的onReceive应尽快返回。

来源：LogCat

收到短信后，在Android中刷新ListView不起作用

1 个答案: