Dynamically update the FolderList titlebar when the unread state of a
listed folder changes. This implementation applies the folder unread
count delta to the account-level unread count, to avoid the expense of
recomputing the entire account's unread count. If no FolderInfoHolder
for this folder already exists, skip the recomputation of the
account-level unread message count.
Should not HTMLify the message when it is sent without quoted message.
The problem is:
1. set MessageFormat in Account setting to the TEXT.
2. reply a message without quoted text.
3. it is sent with HTML tags.
Remove memory leak from referencing MessageView context from the
Intent that is created to go back to MessageList. MessageView is no
longer hardcoded to go back to MessageList, it instead uses an Intent
given at creation to get back to the originating Activity.
Try our best to restore the MessageList in its previous state when
"Manage BACK button" option is enabled:
Since MessageList lives in its own task, we look for the previous
active task and check whether its top activity matches it. If it does,
we just finish MessageView and Android will automatically restore the
previous task. If it doesn't, we launch the originating Intent (and
MessageList state will be lost).
If option is off, we get the regular Android behavior: got back to the
previous screen, whenever it's the MessageList or another application
if the user long-pressed HOME.
The consequence of this is the need for a new permission in order to
check the previous active task: android.permission.GET_TASKS
reloading
As part of automatic activity reloading following a configuration
change, Android invokes Activity#onPrepareDialog() even for dismissed
dialogs. Consequently, one can't make the assumption that this method
is only invoked by explicit calls to Activity#showDialog() from our
code.
The actual problem here was the mActiveMessages member being null
at such times.
Message operations should be more consistent now, regardless of how
the messages are selected (long click, checkbox+Menu, future group selection).
This is a backport of the modifications made on the issue258 branch,
without the threading specific features (no new feature introduced).
