Support prebuilt apk source selection based on PRODUCT_AAPT_PREF_CONFIG
Two new LOCAL variables are added to support dpi-specific prebuilt apk
selection:
- LOCAL_DPI_VARIANTS: specify a list of dpis the module provides with
specific prebuilt.
Example: LOCAL_DPI_VARIANTS := xxhdpi xhdpi hdpi mdpi
- LOCAL_DPI_FILE_STEM: specify the dpi-specific source file name
pattern.
Example: LOCAL_DPI_FILE_STEM := MyApp-%.apk
"%" will be substitued by $(PRODUCT_AAPT_PREF_CONFIG) in the core
build system.
If you don't set up LOCAL_DPI_FILE_STEM, the default is
$(LOCAL_MODULE)_%.apk.
The build system searches $(PRODUCT_AAPT_PREF_CONFIG) in a prebuilt apk
module's $(LOCAL_DPI_VARIANTS). If not found, use whatever
$(LOCAL_SRC_FILES) as the source file; Otherwise use $(LOCAL_DPI_FILE_STEM)
to construct the dpi-specific apk's source file name, and use whatever
directory name of $(LOCAL_SRC_FILES).
Bug: 18388705
Change-Id: I63cae73f1b6f880302142abc476b3ce1fb5500b5
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 92b3fc4..3619880 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -158,6 +158,8 @@
LOCAL_MODULE_UNSUPPORTED_TARGET_ARCH:=
LOCAL_MODULE_UNSUPPORTED_TARGET_ARCH_WARN:=
LOCAL_MODULE_HOST_ARCH:=
+LOCAL_DPI_VARIANTS:=
+LOCAL_DPI_FILE_STEM:=
# arch specific variables
LOCAL_SRC_FILES_$(TARGET_ARCH):=