使用 Javamail API 列出收件箱
我正在获取我的 gmail 帐户的收件箱文件夹，可以列出传入的电子邮件，但该列表是从较旧的邮件到较新的邮件列出的。我怎样才能恢复它？
public class readInbox extends ListActivity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.readmail);
Message[] messages = new Message[] { };
try {
messages = inboxReader.getMail();
}
catch (MessagingException e) {
Log.e("mailReader getMail error. in readmail.java", e.getMessage(), e);
}
ArrayAdapter<Message> adapter = new ArrayAdapter<Message>(this,
R.layout.simple_list_item_1 ,messages){
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Message message = getItem(position);
TextView resultView = new TextView(super.getContext());
try {
resultView.setText(message.getSubject());
}
catch (MessagingException e) {
Log.e("resultView.setText in readmail", e.getMessage(), e);
}
return resultView;
}
};
setListAdapter(adapter);
}
}
I'm getting inbox folder of my gmail account, can list the incoming e-mails, but that list is being listed from older mails to newer mails. How can i revert that ?
public class readInbox extends ListActivity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.readmail);
Message[] messages = new Message[] { };
try {
messages = inboxReader.getMail();
}
catch (MessagingException e) {
Log.e("mailReader getMail error. in readmail.java", e.getMessage(), e);
}
ArrayAdapter<Message> adapter = new ArrayAdapter<Message>(this,
R.layout.simple_list_item_1 ,messages){
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Message message = getItem(position);
TextView resultView = new TextView(super.getContext());
try {
resultView.setText(message.getSubject());
}
catch (MessagingException e) {
Log.e("resultView.setText in readmail", e.getMessage(), e);
}
return resultView;
}
};
setListAdapter(adapter);
}
}
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要么反转数组的顺序，要么对于
getItem，使用恢复的索引 (count-position-1) 。顺便说一句，这不是使用 listviews 的有效方法，事实上它有内存泄漏，这会导致它在处理大量项目后崩溃（对于 SGS3 来说大约 10000 就足够了）。
有关 listView 的更多信息，请观看此视频：
http ://www.google.com/events/io/2010/sessions/world-of-listview-android.html
either invert the order of the array , or for the
getItem, use the reverted index (count-position-1) .btw, that's not an efficient way to use listviews , and in fact it has a memory leak which will cause it to crash after a lot of items (about 10000 is enough for SGS3) .
for more information about listView , check this video:
http://www.google.com/events/io/2010/sessions/world-of-listview-android.html
您可以通过
inbox.getMessageCount()获取消息总数，然后检索最后N条消息。You can get the total number of messages through
inbox.getMessageCount(), then retrieve last N number of messages.