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):=
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 284884c..5c02f8d 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -114,6 +114,19 @@
ifeq ($(LOCAL_MODULE_CLASS),APPS)
PACKAGES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_PACKAGES))
+# Select dpi-specific source
+ifdef LOCAL_DPI_VARIANTS
+my_dpi := $(filter $(LOCAL_DPI_VARIANTS),$(PRODUCT_AAPT_PREF_CONFIG))
+ifdef my_dpi
+ifdef LOCAL_DPI_FILE_STEM
+my_prebuilt_dpi_file_stem := $(LOCAL_DPI_FILE_STEM)
+else
+my_prebuilt_dpi_file_stem := $(LOCAL_MODULE)_%.apk
+endif
+my_prebuilt_src_file := $(dir $(my_prebuilt_src_file))$(subst %,$(my_dpi),$(my_prebuilt_dpi_file_stem))
+endif # my_dpi
+endif # LOCAL_DPI_VARIANTS
+
rs_compatibility_jni_libs :=
include $(BUILD_SYSTEM)/install_jni_libs.mk