[Xamarin.Android.Build.Tasks] deletebinobj fix for resources #2199
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Fixes: dotnet#2193 I have been able to reproduce a #deletebinobj bug with the following steps: 1. `File | New Project | Android App (Xamarin) | Tabbed App`, set `Minimum Android Version` to `Android 5.0 (Lollipop)` 2. Build 3. Add a new `TextView` to `Resources\layout\activity_main.axml`, with an id of `textView1` 4. Build and Deploy Get a crash at runtime: Android.Views.InflateException: Binary XML file line #1: Error inflating class android.support.design.widget.BottomNavigationView occurred A `Rebuild` fixes the problem, and the app starts correctly again. After comparing `obj` directories from before and after, I noticed `obj\Debug\android\src\android\support\compat\R.java` was missing the field for `R.id.textView1`! public static int textView1=0x7f080091; This doesn't match the error message we are getting here at all... But this file is updated by the `_GenerateJavaDesignerForComponent` MSBuild target. Further research showed that this target was getting skipped at step no. 4 above, because it was found to be up to date according to its inputs and outputs. To verify this was the case, I could delete `obj\Debug\Component.R.cs.flag` which would also resolve the runtime exception (instead of a full `Rebuild`). First, I created a new test: - `CustomViewAddResourceId` builds a project with `<android.support.design.widget.BottomNavigationView />` - Adds a `textView1` layout, builds again - Verifies that `obj\Debug\android\src\android\support\compat\R.java` contains `textView1` To fix the problem, I did the following: - Added `$(_AndroidResgenFlagFile)` as an input to `_GenerateJavaDesignerForComponent`, so it will run again when `_UpdateAndroidResgen` runs - Removed `AndroidComponentResgenFlagFile="$(_AndroidComponentResgenFlagFile)"` from the call to the `<Aapt />` MSBuild task, so it will re-run `aapt` and generate `R.java`. However, things were breaking when `$(AndroidUseAapt2)` was enabled. For `aapt2` support I had to: - Remove `AndroidComponentResgenFlagFile` from the `<Aapt2Link />` call - Set an extra property that the other `<Aapt2Link />` calls are already doing: `CompiledResourceFlatArchive="$(IntermediateOutputPath)\compiled.flata"`
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Test failure is that random one we've been seeing: Probably unrelated. |
dellis1972
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Context: dotnet#2088 Context: dotnet#2129 Context: dotnet#2199 In 4deec52, I fixed the #deletebinobj problem we discovered. However... I introduced a regression to incremental builds, I noticed that the `_CompileJava` target is now running on a second build with no changes. Third build? oddly it gets skipped... It seems to be due to our use of flag files: 1. `_UpdateAndroidResgen` updates `R.cs.flag` and uses the file as an output 2. `_GenerateJavaDesignerForComponent` now uses `R.cs.flag` as an input 3. `_GenerateJavaStubs` *also* updates the timestamp on `R.cs.flag`. This was added in 970da9e, as a workaround for our two instances of `ConvertResourcesCases`. 4. `_GenerateJavaDesignerForComponent` will now run again on the next build. Since 1886e6f eliminated the second call to `ConvertResourcesCases`, we don't need to update `R.cs.flag` in no. 3 any longer. Removing the call to `<Touch />` `R.cs.flag` in `_GenerateJavaStubs` fixed the issue, and I added some assertions in relevant tests to check that the `_CompileJava` and `_GenerateJavaDesignerForComponent` targets aren't running on incremental builds.
dellis1972
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Context: #2088 Context: #2129 Context: #2199 In 4deec52, I fixed the #deletebinobj problem we discovered. However... I introduced a regression to incremental builds, I noticed that the `_CompileJava` target is now running on a second build with no changes. Third build? oddly it gets skipped... It seems to be due to our use of flag files: 1. `_UpdateAndroidResgen` updates `R.cs.flag` and uses the file as an output 2. `_GenerateJavaDesignerForComponent` now uses `R.cs.flag` as an input 3. `_GenerateJavaStubs` *also* updates the timestamp on `R.cs.flag`. This was added in 970da9e, as a workaround for our two instances of `ConvertResourcesCases`. 4. `_GenerateJavaDesignerForComponent` will now run again on the next build. Since 1886e6f eliminated the second call to `ConvertResourcesCases`, we don't need to update `R.cs.flag` in no. 3 any longer. Removing the call to `<Touch />` `R.cs.flag` in `_GenerateJavaStubs` fixed the issue, and I added some assertions in relevant tests to check that the `_CompileJava` and `_GenerateJavaDesignerForComponent` targets aren't running on incremental builds.
dellis1972
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that referenced
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Oct 3, 2018
Fixes: #2193 I have been able to reproduce a #deletebinobj bug with the following steps: 1. `File | New Project | Android App (Xamarin) | Tabbed App`, set `Minimum Android Version` to `Android 5.0 (Lollipop)` 2. Build 3. Add a new `TextView` to `Resources\layout\activity_main.axml`, with an id of `textView1` 4. Build and Deploy Get a crash at runtime: Android.Views.InflateException: Binary XML file line #1: Error inflating class android.support.design.widget.BottomNavigationView occurred A `Rebuild` fixes the problem, and the app starts correctly again. After comparing `obj` directories from before and after, I noticed `obj\Debug\android\src\android\support\compat\R.java` was missing the field for `R.id.textView1`! public static int textView1=0x7f080091; This doesn't match the error message we are getting here at all... But this file is updated by the `_GenerateJavaDesignerForComponent` MSBuild target. Further research showed that this target was getting skipped at step no. 4 above, because it was found to be up to date according to its inputs and outputs. To verify this was the case, I could delete `obj\Debug\Component.R.cs.flag` which would also resolve the runtime exception (instead of a full `Rebuild`). First, I created a new test: - `CustomViewAddResourceId` builds a project with `<android.support.design.widget.BottomNavigationView />` - Adds a `textView1` layout, builds again - Verifies that `obj\Debug\android\src\android\support\compat\R.java` contains `textView1` To fix the problem, I did the following: - Added `$(_AndroidResgenFlagFile)` as an input to `_GenerateJavaDesignerForComponent`, so it will run again when `_UpdateAndroidResgen` runs - Removed `AndroidComponentResgenFlagFile="$(_AndroidComponentResgenFlagFile)"` from the call to the `<Aapt />` MSBuild task, so it will re-run `aapt` and generate `R.java`. However, things were breaking when `$(AndroidUseAapt2)` was enabled. For `aapt2` support I had to: - Remove `AndroidComponentResgenFlagFile` from the `<Aapt2Link />` call - Set an extra property that the other `<Aapt2Link />` calls are already doing: `CompiledResourceFlatArchive="$(IntermediateOutputPath)\compiled.flata"`
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…otnet#2199)" This reverts commit fab260d.
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Fixes: #2193
I have been able to reproduce a #deletebinobj bug with the following
steps:
File | New Project | Android App (Xamarin) | Tabbed App, setMinimum Android VersiontoAndroid 5.0 (Lollipop)TextViewtoResources\layout\activity_main.axml, withan id of
textView1Get a crash at runtime:
A
Rebuildfixes the problem, and the app starts correctly again.After comparing
objdirectories from before and after, I noticedobj\Debug\android\src\android\support\compat\R.javawas missing thefield for
R.id.textView1!This doesn't match the error message we are getting here at all... But
this file is updated by the
_GenerateJavaDesignerForComponentMSBuild target. Further research showed that this target was getting
skipped at step no. 4 above, because it was found to be up to date
according to its inputs and outputs.
To verify this was the case, I could delete
obj\Debug\Component.R.cs.flagwhich would also resolve the runtimeexception (instead of a full
Rebuild).First, I created a new test:
CustomViewAddResourceIdbuilds a project with<android.support.design.widget.BottomNavigationView />textView1layout, builds againobj\Debug\android\src\android\support\compat\R.javacontains
textView1To fix the problem, I did the following:
$(_AndroidResgenFlagFile)as an input to_GenerateJavaDesignerForComponent, so it will run again when_UpdateAndroidResgenrunsAndroidComponentResgenFlagFile="$(_AndroidComponentResgenFlagFile)"from the call to the
<Aapt />MSBuild task, so it will re-runaaptand generateR.java.However, things were breaking when
$(AndroidUseAapt2)wasenabled.
For
aapt2support I had to:AndroidComponentResgenFlagFilefrom the<Aapt2Link />call
<Aapt2Link />calls arealready doing:
CompiledResourceFlatArchive="$(IntermediateOutputPath)\compiled.flata"