android 获取邮箱数据,如何获取未读gmail邮件的数量(在android上)

这是一些代码片段.不确定它是否有效且无法测试.但我希望它能帮助你继续调查.

public static final class LabelColumns {

public static final String CANONICAL_NAME = "canonicalName";

public static final String NAME = "name";

public static final String NUM_CONVERSATIONS = "numConversations";

public static final String NUM_UNREAD_CONVERSATIONS = "numUnreadConversations";

}

public void queryLabels(){

String account="email@company.com";

Uri LABELS_URI = Uri.parse("content://gmail-ls/labels/");

Uri ACCOUNT_URI = Uri.withAppendedPath(LABELS_URI, account);

ContentResolver contentResolver=myActivity.getContentResolver();

Cursor cursor = contentResolver.query(ACCOUNT_URI, null, null, null, null);

//iterate over all labels in the account

if (cursor.moveToFirst()) {

int unreadColumn = cursor.getColumnIndex(LabelColumns.NUM_UNREAD_CONVERSATIONS);

int nameColumn = cursor.getColumnIndex(LabelColumns.NAME);

do {

String name = cursor.getString(nameColumn);

String unread = cursor.getString(unreadColumn);//here's the value you need

} while (cursor.moveToNext());

}

}

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