Android Studio 2.0 Preview 5 发布，更新如下： Instant Run:
We've made a huge number of changes in this area. Among the user
visible features, we now support "cold swap": if there is an
incompatible change that can't be hot swapped, it now builds and deploys
incremental changes and restarts the app. We use several different
methods for this, depending on the API level of the target device: On
Android Marshmallow, we use "APK splits", dividing the codebase up into
slices that are packaged as individual APK slices, and install these
via adb install-multiple. This means that on M, we don't need to use the
class loader tricks that we use on older platforms. On Android Lollipop, we use multidex to split the app code into dex slices, and push those. On Android KitKat and below, we create a single dex file containing the changed classes. In
addition to "coldswap", which restarts a running app after applying
incompatible changes, we also support "freeze swap" where we support
building incrementally even when the app isn't originally running. In
that case, we push the changes via adb to an "inbox" directory on the
device. Note that Instant Run now requires a new version of the Gradle plugin: 2.0-alpha5 (also released today) - release notes for the plugin
Lint There is a new "Remove Unused Resources" refactoring which finds and removes unused resources in the project.
The
unused resource detector has been rewritten, and now supports flagging
"transitive" unused resources (resources that are referenced, but only
from other unused resources), supports detecting resource references in
raw files such as .html image references, and supports the tools:keep
and tools:discard attributes used by the Gradle resource shrinker, it
considers inactive source sets (e.g. resources defined in other product
flavors and build types), and properly handles static field imports. It
now also has a quickfix for removing unused resources. Implicit
API checks. Until now, lint has checked that method calls and field
references are supported on all platforms targeted by your
minSdkVersion. However, there are a number of classes that have started
implementing new interfaces, such as Closeable, in later levels - or
that have even changed which super class they extend. For example,
KeyEvent only has InputEvent as a super class as of API 9. That means
that in all the places where you have an implicit or explicit cast, you
also have a potential crash. Lint now tracks these API changes and
checks all implicit casts:
Several
new lint checks - one looking for a common pitfall in RecyclerView
usage, one looking for a potential crash with Parcelable loading, as
well as 8 lint checks ported from bytecode analysis to in-IDE analysis
such that they can run in the background in the editor.
The
@IntDef, @IntRange and @Size inspections are now checked not just for
primitive ints, but for int arrays and varargs as well. A
number of other miscellaneous improvements, such as lint now running
even when there are syntax errors in the current file being edited,
exposing lint issue categories in the IDE analysis window, fixes to make
third party lint rules (provided from AAR libraries) work better inside
the IDE, etc.
Data binding: The XML editor now support code completion for data binding expressions.
Test
Artifacts: The experimental test artifacts feature (where both unit
test and instrumentation tests are enabled simultaneously in the IDE)
has been improved further and is now enabled by default.
Code completion inside style tags should now work better; it looks up the parent styles and suggests eligible items. We've
also been working on improving the accessibility support, as well as
infrastructure work on the SDK manager and the wizard infrastructure. And
as always - a large number of bug fixes. Please let us know if there
are new problems, or if the fixes aren't working correctly!
详情请看：Android Studio 2.0 Preview 5 Available 下载地址：Android Studio 2.0 Preview 5 |
