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BREAKING-CHANGES.txt
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JUCE breaking changes
=====================
Version 6.0.0
=======
Change
------
The Convolution class interface was changed:
- `loadImpulseResponse` member functions now take `enum class` parameters
instead of `bool`.
- `copyAndLoadImpulseResponseFromBlock` and
`copyAndLoadImpulseResponseFromBuffer` were replaced by a new
`loadImpulseResponse` overload.
Possible Issues
---------------
Code using the old interface will no longer compile, and will need to be
updated.
Workaround
----------
Code that was previously loading impulse responses from binary data or from
files can substitute old `bool` parameters with the newer `enum class`
equivalents. Code that was previously passing buffers or blocks will need
reworking so that the Convolution instance can take ownership of the buffer
containing the impulse response.
Rationale
---------
The newer `enum class` parameters make user code much more readable, e.g.
`loadImpulseResponse (file, Stereo::yes, Trim::yes, 0, Normalise::yes)` rather
than `loadImpulseResponse (file, true, true, 0, true);`. By taking ownership of
the passed buffer, the Convolution can avoid preallocating a large internal
buffer, reducing memory usage when short impulse responses are used. Changing
the ownership semantics of the buffer also makes it easier for users to avoid
copies/allocations on the audio thread, and gives more flexibility to the
implementation to run initialisation tasks on a background thread.
Change
------
All references to ROLI Ltd. (ROLI) have been changed to Raw Material Software
Limited.
Possible Issues
---------------
Exising projects, particularly Android, may need to be resaved by the Projucer
and have the old build artifacts deleted before they will build.
Workaround
----------
In Android projects any explicit mention of paths with the from "com.roli.*"
should be changed to the form "com.rmsl.*".
Rationale
---------
This change reflects the change in ownership from ROLI to RMSL.
Change
------
The Windows DPI handling in the VST wrapper and hosting code has been
refactored to be more stable.
Possible Issues
---------------
The new code uses a top-level AffineTransform to scale the JUCE editor window
instead of native methods. Therefore any AudioProcessorEditors which have their
own AffineTransform applied will no longer work correctly.
Workaround
----------
If you are using an AffineTransform to scale the entire plug-in window then
consider putting the component you want to transform in a child of
the editor and transform that instead. Alternatively, if you don't need a
separate scale factor for each plug-in instance you can use
Desktop::setGlobalScaleFactor().
Rationale
---------
The old code had some bugs when using OpenGL and when moving between monitors
with different scale factors. The new code should fix these and DPI-aware
plug-ins will scale correctly.
Change
------
Relative Xcode subproject paths specified in the Projucer are now relative to
the build directory rather than the project directory.
Possible Issues
---------------
After being re-saved in the Projucer existing Xcode projects will fail to find
any subprojects specified using a relative path.
Workaround
----------
Update the subproject path in the Projucer.
Rationale
---------
Most other Xcode specific paths are specified reltive to the build directory.
This change brings the Xcode subproject path in line with the rest of the
configuration.
Version 5.4.6
=============
Change
------
AudioProcessorValueTreeState::getRawParameterValue now returns a
std::atomic<float>* instead of a float*.
Possible Issues
---------------
Existing code which explicitly mentions the type of the returned value, or
interacts with the dereferenced float in ways unsupported by the std::atomic
wrapper, will fail to compile. Certain evaluation-reordering compiler
optimisations may no longer be possible.
Workaround
----------
Update your code to deal with a std::atomic<float>* instead of a float*.
Rationale
---------
Returning a std::atomic<float>* allows the JUCE framework to have much stronger
guarantees about thread safety.
Change
------
Removed a workaround from the ASIOAudioIODevice::getOutputLatencyInSamples()
and ASIOAudioIODevice::getInputLatencyInSamples() methods which was adding an
arbitrary amount to the reported latencies to compensate for dodgy, old
drivers.
Possible Issues
---------------
Code which relied on these altered values may now behave differently.
Workaround
----------
Update your code to deal with the new, correct values reported from the drivers
directly.
Rationale
---------
JUCE will now return the latency values as reported by the drivers without
adding anything to them. The workaround was for old drivers and the current
drivers should report the correct values without the need for the workaround.
Change
------
The default behaviour of the AU and AUv3 plug-in wrappers is now to call
get/setStateInformation instead of get/setProgramStateInformation.
Possible Issues
---------------
AudioProcessor subclasses which have overridden the default implementations of
get/setProgramStateInformation (which simply call through to
get/setStateInformation) may be unable to load previously saved state; state
previously saved via a call to getProgramStateInformation will be presented to
setStateInformation.
Workaround
----------
Enable the JUCE_AU_WRAPPERS_SAVE_PROGRAM_STATES configuration option in the
juce_audio_plugin_client module to preserve backwards compatibility if
required.
Rationale
---------
When using overridden get/setProgramStateInformation methods the previous
behaviour of the AU and AUv3 wrappers does not correctly save and restore
state.
Version 5.4.5
=============
Change
------
The alignment of text rendered on macOS using CoreGraphics may have shifted
slightly, depending on the font you have used. The default macOS font has
shifted downwards.
Possible Issues
---------------
Meticulously aligned text components of a GUI may now be misaligned.
Workaround
----------
Use a custom LookAndFeel to change the location where text is drawn, or use a
different font that matches the previous alignment of your original font.
Rationale
---------
This was an unintentional change resulting from moving away from a deprecated
macOS text API. The new alignment is consistent with other rendering engines
(web browsers and text editors) and the software renderer.
Change
------
The JUCEApplicationBase::backButtonPressed() method now returns a bool to
indicate whether the back event was handled or not.
Possible Issues
---------------
Applications which override this method will fail to compile.
Workaround
----------
You will need to update your code to return a bool indicating whether the back
event was handled or not.
Rationale
---------
The back button behaviour on Android was previously broken as it would not do
anything. The new code will correctly call finish() on the Activity when the
back button is pressed but this method now allows the user to override this to
implement their own custom navigation behaviour by returning true to indicate
that it has been handled.
Change
------
The AudioBlock class has been refactored and some of the method names have
changed. Additionally the `const` behaviour now mirrors that of `std::span`,
with the `const`-ness of the contained data decoupled from the `const`-ness of
the container.
Possible Issues
---------------
Code using the old method names or violating `const`-correctness will fail to
compile.
Workaround
----------
You will need to update your code to use the new method names and select an
appropriate `const`-ness for the AudioBlock and the data it references.
Rationale
---------
The names of some of the methods in the AudioBlock class were ambiguous,
particularly when chaining methods involving references to other blocks. The
interaction between the `const`-ness of the AudioBlock and the `const`-ness of
the referenced data was also ambiguous and has now been standardised to the
same behaviour as other non-owning data views like `std::span`.
Version 5.4.4
=============
Change
------
The Visual Studio 2013 exporter has been removed from the Projucer and we will
no longer maintain backwards compatibility with Visual Studio 2013 in JUCE.
Possible Issues
---------------
It is no longer possible to create Visual Studio 2013 projects from the
Projucer or compile JUCE-based software using Visual Studio 2013.
Workaround
----------
If you are using Visual Studio 2013 to build your projects you will need to
update to a more modern version of Visual Studio.
Rationale
---------
Of all the platforms JUCE supports Visual Studio 2013 was holding us back the
most in terms of C++ features we would like to use more broadly across the
codebase. It is still possible to target older versions of Windows with more
modern versions of Visual Studio. Until recently the AAX SDK was distributed as
a Visual Studio 2013 project, but this is now provided as a Visual Studio 2017
project.
Change
------
JUCE is moving towards using C++11 pointer container types instead of passing
raw pointers as arguments and return values.
Possible Issues
---------------
You will need to change your code to pass std::unique_ptr into and out of
various functions across JUCE's API.
Workaround
----------
None
Rationale
---------
Indicating ownership through the transfer of smart pointer types has been part
of mainstream C++ for a long time and this change enforces memory safety by
default in most situations.
Change
------
SystemTrayIconComponent::setIconImage now takes two arguments, rather than one.
The new argument is a template image for use on macOS where all non-transparent
regions will render in a monochrome colour determined dynamically by the
operating system.
Possible Issues
---------------
You will now need to provide two images to display a SystemTrayIconComponent
and the SystemTrayIconComponent will have a different appearance on macOS.
Workaround
----------
If you are not targeting macOS then you can provide an empty image, `{}`, for
the second argument. If you are targeting macOS then you will likely need to
design a new monochrome icon.
Rationale
---------
The introduction of "Dark Mode" in macOS 10.14 means that menu bar icons must
support several different colours and highlight modes to retain the same
appearance as the native Apple icons. Doing this correctly without delegating
the behaviour to the operating system is extremely cumbersome, and the APIs we
were previously using to interact with menu bar items have been deprecated.
Change
------
The AudioBlock class now differentiates between const and non-const data.
Possible Issues
---------------
The return type of the getInputBlock() method of the ProcessContextReplacing
and ProcessContextNonReplacing classes has changed from AudioBlock<X> to
AudioBlock<const X>.
Workaround
----------
For ProcessContextReplacing you should use getOutputBlock() instead of
getInputBlock(). For ProcessContextNonReplacing attempting to modify the input
block is very likely an error.
Rationale
---------
This change makes the intent of the code much clearer and means that we can
remove some const_cast operations.
Change
------
The formatting of floating point numbers written to XML and JSON files has
changed.
Note that there is no change in precision - the XML and JSON files containing
the new format numbers will parse in exactly the same way, it is only the
string representation that has changed.
Possible Issues
---------------
If you rely upon exactly reproducing XML or JSON files then the new files may
be different.
Workaround
----------
Update any reference XML or JSON files to use the new format.
Rationale
---------
The new format retains full precision, provides a human friendly representation
of values near 1, and uses scientific notation for small and large numbers.
This prevents needless file size bloat from numbers like 0.00000000000000001.
Version 5.4.3
=============
Change
------
The global user module path setting in the Projucer can now only contain a
single path.
Possible Issues
---------------
Projects that previously relied on using multiple global user module paths
separated by a semicolon will fail to find these modules after re-saving.
Workaround
----------
Replace the multiple paths with a single global user module path.
Rationale
---------
Using multiple global user module paths did not work when saving a project
which exported to different OSes. Only allowing a single path will prevent this
from silently causing issues.
Version 5.4.2
=============
Change
------
The return type of Block::getBlockAreaWithinLayout() has been changed from
Rectangle to a simpler BlockArea struct.
Possible Issues
---------------
Classes that derive from Block and implement this pure virtual method will no
longer compile due to a change in the function signature.
Workaround
----------
Update the method to return a BlockArea struct and update code that calls
getBlockAreaWithinLayout to handle a BlockArea instead of a Rectangle.
Rationale
---------
The juce_blocks_basics is ISC licensed and therefore cannot depend on the
GPL/Commercial licensed juce_graphics module that contains Rectangle.
Change
------
Renaming and deletion of open file handles on Windows is now possible using the
FILE_SHARE_DELETE flag.
Possible Issues
---------------
Previous code that relied on open files not being able to be renamed or deleted
on Windows may fail.
Workaround
----------
No workaround.
Rationale
---------
This unifies the behaviour across OSes as POSIX systems already allow this.
Change
------
Multiple changes to low-level, non-public JNI and Android APIs.
Possible Issues
---------------
If you were using any non-public, low-level JNI macros, calling java code or
recieving JNI callbacks, then your code will probably no longer work. See the
forum for further details.
Workaround
----------
See the forum for further details.
Rationale
---------
See the forum for further details.
Change
------
The minimum Android version for a JUCE app is now Android 4.1
Possible Issues
---------------
Your app may not run on very old versions of Android (less than 0.5% of the
devices).
Workaround
----------
There is no workaround.
Rationale
---------
Less than 0.5% of all devices in the world run versions of Android older than
Android 4.1. In the interest of keeping JUCE code clean and lean, we must
depricate support for very old Android versions from time to time.
Version 5.4.0
=============
Change
------
The use of WinRT MIDI functions has been disabled by default for any version
of Windows 10 before 1809 (October 2018 Update).
Possible Issues
---------------
If you were previously using WinRT MIDI functions on older versions of Windows
then the new behaviour is to revert to the old Win32 MIDI API.
Workaround
----------
Set the preprocessor macro JUCE_FORCE_WINRT_MIDI=1 (in addition to the
previously selected JUCE_USE_WINRT_MIDI=1) to allow the use of the WinRT API on
older versions of Windows.
Rationale
---------
Until now JUCE's support for the Windows 10 WinRT MIDI API was experimental,
due to longstanding issues within the API itself. These issues have been
addressed in the Windows 10 1809 (October 2018 Update) release.
Change
------
The VST2 SDK embedded within JUCE has been removed.
Possible Issues
---------------
1. Building or hosting VST2 plug-ins requires header files from the VST2 SDK,
which is no longer part of JUCE.
2. Building a VST2-compatible VST3 plug-in (the previous default behaviour in
JUCE) requires header files from the VST2 SDK, which is no longer part of
JUCE.
Workaround
----------
1. The VST2 SDK can be obtained from the vstsdk3610_11_06_2018_build_37 (or
older) VST3 SDK or JUCE version 5.3.2. You should put the VST2 SDK in your
header search paths or use the "VST (Legacy) SDK Folder" fields in the
Projucer.
2. For new plug-in projects where you will be releasing both a VST2 and VST3
version, and you want the VST3 plug-in to replace the VST2 plug-in in
hosts that support it, then you should enable the JUCE_VST3_CAN_REPLACE_VST2
option.
3. When a new JUCE plug-in project is created the value of
JUCE_VST3_CAN_REPLACE_VST2 will be set to zero.
Rationale
---------
Distributing VST2 plug-ins requires a VST2 license from Steinberg. Following
Steinberg's removal of the VST2 SDK from their public SDKs we are also removing
the VST2 SDK from the JUCE codebase.
Change
------
The AudioProcessorValueTreeState::createAndAddParameter function has been
deprecated.
Possible Issues
---------------
Deprecation warnings will be seen when compiling code which uses this function
and eventually builds will fail when it is later removed from the API.
Workaround
----------
Previous calls to
createAndAddParameter (paramID, paramName, ...);
can be directly replaced with
using Parameter = AudioProcessorValueTreeState::Parameter;
createAndAddParameter (std::make_unique<Parameter> (paramID, paramName, ...));
but an even better approach is to use the new AudioProcessorValueTreeState
constructor where you can pass both RangedAudioParameters and
AudioProcessorParameterGroups of RangedAudioParameters to the
AudioProcessorValueTreeState and initialise the ValueTree simultaneously.
Rationale
---------
The new createAndAddParameter method is much more flexible and enables any
parameter types derived from RangedAudioParameter to be managed by the
AudioProcessorValueTreeState.
Change
------
The Projucer's per-exporter Android SDK/NDK path options have been removed.
Possible Issues
---------------
Projects that previously used these fields may no longer build.
Workaround
----------
Use the Projucer's global paths settings to point to these directories, either
by opening the "Projucer/File->Global Paths..." menu item or using the
"--set-global-search-path" command-line option.
Rationale
---------
Having multiple places where the paths could be set was confusing and could
cause unexpected mismatches.
Change
------
SystemStats::getDeviceDescription() will now return the device code on iOS e.g.
"iPhone7, 2" for an iPhone 6 instead of just "iPhone".
Possible Issues
---------------
Code that previously relied on this method returning either explicitly "iPhone"
or "iPad" may no longer work.
Workaround
----------
Modify this code to handle the new device code string e.g. by changing:
SystemStats::getDeviceDescription() == "iPhone";
to
SystemStats::getDeviceDescription().contains ("iPhone");.
Rationale
---------
The exact device model can now be deduced from this information instead of just
the device family.
Change
------
DragAndDropContainer::performExternalDragDropOfFiles() and
::performExternalDragDropOfText() are now asynchronous on Windows.
Possible Issues
---------------
Code that previously relied on these operations being synchronous and blocking
until completion will no longer work as the methods will return immediately and
run asynchronously.
Workaround
----------
Use the callback argument that has been added to these methods to register a
lambda that will be called when the operation has been completed.
Rationale
---------
The behaviour of these methods is now consistent across all platforms and the
method no longer blocks the message thread on Windows.
Change
------
AudioProcessor::getTailLengthSeconds can now return infinity for
VST/VST3/AU/AUv3.
Possible Issues
---------------
If you are using the result of getTailLengthSeconds to allocate a buffer in
your host, then your host will now likely crash when loading a plug-in with an
infinite tail time.
Workaround
----------
Rewrite your code to not use the result of getTailLengthSeconds directly to
allocate a buffer.
Rationale
---------
Before this change there was no way for a JUCE plug-in to report an infinite
tail time.
Version 5.3.2
=============
Change
------
The behaviour of an UndoManager used by an AudioProcessorValueTreeState has
been improved.
Possible Issues
---------------
If your plug-in contains an UndoManager used by an AudioProcessorValueTreeState
and relies upon the old behaviour of the UndoManager then it is possible that
the new behaviour is no longer appropriate for your use case.
Workaround
----------
Use an external UndoManager to reproduce the old behaviour manually.
Rationale
---------
This change fixes a few bugs in the behaviour of an UndoManager used by an
AudioProcessorValueTreeState.
Change
------
JUCE no longer supports OS X deployment targets earlier than 10.7.
Possible Issues
---------------
If you were previously targeting OS X 10.5 or 10.6 you will no longer be able
to build JUCE-based products compatible with those platforms.
Workaround
----------
None. With the appropriate JUCE licence you may be able to backport new JUCE
features, but there will be no official support for this.
Rationale
---------
Increasing the minimum supported OS X version allows the JUCE codebase to make
use of the more modern C++ features found in the 10.7 standard library, which
in turn will increase thread and memory safety.
Version 5.3.0
=============
Change
------
The JUCE examples have been cleaned up, modernised and converted into PIPs
(Projucer Instant Projects). The JUCE Demo has been removed and replaced by the
DemoRunner application and larger projects such as the Audio Plugin Host and
the Network Graphics Demo have been moved into the extras directory.
Possible Issues
---------------
1. Due to the large number of changes that have occurred in the JUCE Git
repository, pulling this version may result in a messy folder structure with
empty directories that have been removed.
2. The JUCE Demo project is no longer in the JUCE repository.
3. The Audio Plugin Host project has moved from the examples directory to the
extras directory.
Workaround
----------
1. Run a Git clean command (git clean -xdf) in your JUCE directory to remove
all untracked files, directories and build products.
2. The new DemoRunner application, located in extras/DemoRunner, can be used to
preview all the JUCE examples and see the code side-by-side.
3. Change any file paths that depended on the plugin host project being located
in the examples directory to use the extras directory instead.
Rationale
---------
The JUCE examples had inconsistent naming, coding styles and the projects and
build products took up a large amount of space in the repository. Replacing
them with PIPs reduces the file size and allows us to categorise the examples
better, as well as cleaning up the code.
Change
------
When hosting plug-ins all AudioProcessor methods of managing parameters that
take a parameter index as an argument have been deprecated.
Possible Issues
---------------
A single assertion will be fired in debug builds on the first use of a
deprecated function.
Workaround
----------
When hosting plug-ins you should use the AudioProcessor::getParameters() method
and interact with parameters via the returned array of
AudioProcessorParameters. For a short-term fix you can also continue past the
assertion in your debugger, or temporarily modify the JUCE source code to
remove it.
Rationale
---------
Given the structure of JUCE's API it is impossible to deprecate these functions
using only compile-time messages. Therefore a single assertion, which can be
safely ignored, serves to indicate that these functions should no longer be
used. The move away from the AudioProcessor methods both improves the interface
to that class and makes ongoing development work much easier.
Change
------
This InAppPurchases class is now a JUCE Singleton. This means that you need
to get an instance via InAppPurchases::getInstance(), instead of storing a
InAppPurchases object yourself.
Possible Issues
---------------
Any code using InAppPurchases needs to be updated to retrieve a singleton
pointer to InAppPurchases.
Workaround
----------
Instead of holding a InAppPurchase member yourself, you should get an instance
via InAppPurchases::getInstance(), e.g.
instead of:
InAppPurchases iap;
iap.purchaseProduct (...);
call:
InAppPurchases::getInstance()->purchaseProduct (...);
Rationale
---------
This change was required to fix an issue on Android where on failed transaction
a listener would not get called.
Change
------
JUCE's MPE classes have been updated to reflect the official specification
recently approved by the MIDI Manufacturers Association (MMA).
Possible Issues
---------------
The most significant changes have occurred in the MPEZoneLayout classes and
programs using the higher level MPE classes such as MPEInstrument,
MPESynthesiser, MPESynthesiserBase and MPESynthesiserVoice should be
unaffected.
Previously, any MIDI channel from 1 - 15 could be selected to be the master
channel of an MPE zone, with a specified number of member channels ascending
from the master channel + 1. However, in the new specification this has been
simplified so that a device only has a lower and/or an upper zone, where the
lower zone has master channel 1 and assigns new member channels ascending from
channel 2 and the upper zone has master channel 16 and assigns new member
channels descending from channel 15.
Workaround
----------
Use the MPEZoneLayout::setLowerZone() and MPEZoneLayout::setUpperZone() methods
to set zone layouts.
Any UI that allows users to select and set zones on an MPE instrument should
also be updated to reflect the specification changes.
Rationale
---------
The MPE classes in JUCE are out of date and should be updated to reflect the
new, official MPE standard.
Version 5.2.1
=============
Change
------
Calling JUCEApplicationBase::quit() on Android will now really quit the app,
rather than just placing it in background. Starting with API level 21 (Android
5.0), the app will not appear in recent apps list after calling quit(). Prior
to API 21, the app will still appear in recent app lists but when a user
chooses the app, a new instance of the app will be started.
Possible Issues
---------------
Any code calling JUCEApplicationBase::quit() to place the app in background
will close the app instead.
Workaround
----------
Use Process::hide().
Rationale
---------
The old behaviour JUCEApplicationBase::quit() was confusing JUCE code, as a new
instance of JUCE app was attempted to be created, while the older instance was
still running in background. This would result in assertions when starting a
second instance.
Change
------
On Windows, release builds will now link to the dynamic C++ runtime by default
Possible Issues
---------------
If you are creating a new .jucer project, then your plug-in will now link to
the dynamic C++ runtime by default, which means that you MUST ensure that the
C++ runtime libraries exist on your customer's computers.
Workaround
----------
If you are only targeting Windows 10, then the C++ runtime is now part of the
system core components and will always exist on the computers of your customers
(just like kernel332.dll, for example). If you are targeting Windows versions
between Vista and Windows 10, then you should build your plug-in with the
latest updated version of VS2015 or later, which ensures that it's linked to
the universal runtime. Universal runtime is part of the system's core libraries
on Windows 10 and on Windows versions Vista to 8.1, it will be available on
your customer's computers via Windows Update. Unfortunately, if your customer
has just installed Windows 8.1 to Vista on a fresh computer, then there is a
chance that the update mechanism for the universal runtime hasn't triggered yet
and your plug-in may still fail. Your installer should prompt the user to
install all the Windows updates in this case or you can deploy the universal
runtime as a redistributable with your installer. If you are targeting earlier
versions of Windows then you should always include the runtime as a
redistributable with your plug-in's installer. Alternatively, you can change
the runtime linking to static (however, see 'Rationale' section).
Rationale
---------
In a recent update to Windows 10, Microsoft has limited the number of fiber
local storage (FLS) slots per process. Effectively, this limits how many
plug-ins with static runtime linkage can be loaded into a DAW. In the worst
case, this limits the total number of plug-ins to a maximum of 64 plug-ins.
There is no workaround for DAW vendors and the only solution is to push plug-in
vendors to use the dynamic runtime. To help with this, JUCE has decided to make
dynamic runtime linkage the default in JUCE.
Change
------
AudioProcessorGraph interface has changed in a number of ways - Node objects
are now reference counted, there are different accessor methods to iterate
them, and misc other small improvements to the API
Possible Issues
---------------
The changes won't cause any silent errors in user code, but will require some
manual refactoring
Workaround
----------
Just find equivalent new methods to replace existing code.
Rationale
---------
The graph class was extremely old and creaky, and these changes is the start of
an improvement process that should eventually result in it being broken down
into fundamental graph building block classes for use in other contexts.
Version 5.2.0
=============
Change
------
Viewport now enables "scroll on drag" mode by default on Android and iOS.
Possible Issues
---------------
Any code relying on "scroll on drag" mode being turned off by default, should
disable it manually.
Workaround
----------
None.
Rationale
---------
It is expected on mobile devices to be able to scroll a list by just a drag,
rather than using a dedicated scrollbar. The scrollbar is still available
though if needed.
Change
------
The previous setting of Android exporter "Custom manifest xml elements"
creating child nodes of <application> element has been replaced by "Custom
manifest XML content" setting that allows to specify the content of the entire
manifest instead. Any previously values of the old setting will be used in the
new setting by default, and they will need changing as mentioned in Workaround.
The custom content will be merged with the content auto-generated by Projucer.
Any custom elements or custom attributes will override the ones set by
Projucer. Projucer will also automatically add any missing and required
elements and attributes.
Possible Issues
---------------
If a Projucer project used "Custom manifest xml elements" field, the value will
no longer be compatible with the project generated in the latest Projucer
version. The solution is very simple and quick though, as mentioned in the
Workaround section.
Workaround
----------
For any elements previously used, simply embed them explicitly in
<manifest><application> elements, for example instead of:
<meta-data android:name="paramId1" android:value="paramValue1"/>
<meta-data android:name="paramId2" android:value="paramValue2"/>
simply write:
<manifest>
<application>
<meta-data android:name="paramId1" android:value="paramValue1"/>
<meta-data android:name="paramId2" android:value="paramValue2"/>
</application>
</manifest>
Rationale
---------
To maintain the high level of flexibility of generated Android projects and to
avoid creating fields in Projucer for every possible future parameter, it is
simpler to allow to set up the required parameters manually. This way it is not
only possible to add any custom elements but it is also possible to override
the default attributes assigned by Projucer for the required elements. For
instance, if the default value of <supports-screens> element is not
satisfactory because you want a support for x-large screens only, simply set
"Custom manifest XML content" to:
<manifest>
<supports-screens android:xlargeScreens="true"/>
</manifest>