在Android中获取未读邮件计数gmail [英] Get the unread mail count gmail in Android

问题描述

我想获取有关设备帐户中未读电子邮件数量的信息.我已经看到有一种使用"Gmail标签公共API"的新方法

I want to get an int with the number of unread emails in the accounts of the device. I have seen that there is a new way to do this using the "Gmail Labels Public API"

http://android-developers.blogspot .in/2012/04/gmail-public-labels-api.html

我已经阅读了文档并下载了示例应用程序，它确实有效.但是我有两个问题:(

I have read the documentation and downloaded the sample application and it really works. But I have two problems: (

我的意图是对未读对话的数量有所了解，我尝试这样做:

My intention is to get an int with the number of unread conversations, i try this:

 public static int getUnreadGmailCount(Context context) {

    ContentResolver cr = context.getContentResolver();
    Cursor cursor = cr.query(GmailContract.Labels.getLabelsUri("[e-mail]"),
            null,
            null, null,
            null);
    if (cursor == null || cursor.isAfterLast()) {
        Log.d(TAG, "No Gmail inbox information found for account.");
        if (cursor != null) {
            cursor.close();
        }
        return 0;
    }
    int count = 0;
    while (cursor.moveToNext()) {
        if (CANONICAL_NAME_INBOX_CATEGORY_PRIMARY.equals(cursor.getString(cursor.getColumnIndex(CANONICAL_NAME)))) {
            count = cursor.getInt(cursor.getColumnIndex(NUM_UNREAD_CONVERSATIONS));
            System.out.println("count is====>"+count);
            break;
        }
    }
    cursor.close();
    return count;
}

但不起作用，总是返回"0"，但是在gmail中，我有3条未读邮件

but not works, always returns "0",But in gmail i have 3 unread messages

真的很感谢您的帮助

感谢和问候

推荐答案

请仔细阅读此文档，并选中此一个

Please read carefully this document and also check this one

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