The previous implementation used a database for storing all of its state, which could cause
a significant amount of IO activity as its tables were updated through the stages of a sync.
This new implementation replaces that in-memory data structures, with hand-written code
for writing them to persistent storage.
There are now 4 files associated with this class, holding various pieces of its state that
should be consistent. These are everything from a main XML file of account information that
must always be retained, to a binary file of per-day statistics that can be thrown away at
any time. Writes of these files as scheduled at various times based on their importance of
the frequency at which they change.
Because the database no longer exists, there needs to be a new explicit interface for
interacting with the sync manager database. This is provided by new APIs on IContentService,
with a hidden method on ContentResolver to retrieve the IContentService so that various
system entities can use it. Other changes in other projects are required to update to the
new API.
The goal here is to have as little an impact on the code and functionality outside of
SyncStorageEngine, though due to the necessary change in API it is still somewhat extensive.
This change adds a sketched outline of the backup system architecture, with
all of the major pieces represented other than client-side helpers for
specific types of data. IBackupManager and BackupService are public so that
we can write test apps against SDK-domain symbols from the outset.
What code exists in this change hasn't been tested and may crash. It's the
beginnings of the real implementation but of course is barely begun.
* Introduced ApplicationScale (may not be good name. CompatibilityScale? CanvasScale? Pls let me know if you have better idea)
* Changes to RootView / SurfaceView
- Makes the app believe it's running in the supported density/resolution.
- Makes the window manager believe it's running at the right density/resolution.
* Added methods to Rect/Event for scaling up/down.
Known issues:
* certain kind of images (such as nine patch for buttons) seesm to be loaded not by app, thus does not take the scale into account,
which, in turn, is causing layout issue.
* ZoomButton in MapView is rendered in wrong place
* Transparent region on Surface is not correct
* Specifying different densities in one process is not working.
BUG=1770627
Automated import of CL 147976
There are three major classes of changes here:
- Avoid writing lines where their values are often empty, false, or some other typical thing.
- Use partial writes to the PrintWriter to avoid creating temporary strings.
- Use StringBuilder where we need to generate real String objects (and where possible cache the result).
Two new broadcasts, Intent.ACTION_POWER_CONNECTED and
Intent.ACTION_POWER_CONNECTED, that are issued when the device is plugged
and unplugged from USB or AC power. This pulls two changes from the
open-source Gerrit repo into the internal Donut codeline:
1241 fda6fae Added broadcasts for external power events.
9491 37f8ca1 Fix system service crash when booting while on battery power
The current.xml API description has also been updated to include the
new Intent fields; the new API was approved in the original OSS change.
in UriMatcher.match().
Before, every call to UriMatcher.match() called
Uri.getPathSegments() N + 1 times,
where N is the size of the list returned by
Uri.getPathSegments(). Since some of the implementations
of Uri.getPathSegments() are O(N), UriMatcher.match() was O(N^2).
This CL fixes the problem by calling uri.getPathSegments() once in
the beginning of match(). That should be safe since Uri is
immutable.
Original author: bringert
Merged from: //branches/donutburger/...
Automated import of CL 144010
in UriMatcher.match().
Before, every call to UriMatcher.match() called
Uri.getPathSegments() N + 1 times,
where N is the size of the list returned by
Uri.getPathSegments(). Since some of the implementations
of Uri.getPathSegments() are O(N), UriMatcher.match() was O(N^2).
This CL fixes the problem by calling uri.getPathSegments() once in
the beginning of match(). That should be safe since Uri is
immutable.
BUG=1751158
Automated import of CL 144008
