max is 65536 ,这是一个很神奇的数字，baidu都查的到
是2的16次方: 65536=2^16
java中规定一个包里只需容纳2^16个method，如果超出了就需要打包
如果超了会出现bug
trouble writing output: Too many methods: 65816; max is 65536. By package:
26 android
145 android.accessibilityservice
700 android.accounts
436 android.animation
8 android.annotation
3857 android.app
240 android.app.admin
308 android.app.backup
105 android.appwidget
1066 android.bluetooth
1741 android.content
956 android.content.pm
499 android.content.res
522 android.database
497 android.database.sqlite
91 android.ddm
5 android.debug
163 android.drm
51 android.drm.mobile1
30 android.emoji
23 android.filterfw
817 android.filterfw.core
26 android.filterfw.format
42 android.filterfw.geometry
46 android.filterfw.io
83 android.filterpacks.base
410 android.filterpacks.imageproc
6 android.filterpacks.numeric
17 android.filterpacks.performance
18 android.filterpacks.text
29 android.filterpacks.ui
18 android.filterpacks.videoproc
21 android.filterpacks.videosink
86 android.filterpacks.videosrc
。。。所以需要把一部分分包，名字叫接口分离技术：
之后
需要在buildtargetproductcore.mk加入PRODUCT_PACKAGES，将一些多余的接口加入到其它中
具体网站：https://github.com/CyanogenMod/android_frameworks_base/commit/854f6f736b90d33b59b5a85bcecf72a416c43b7d
./frameworks/base/Android.mk
@@ -28,10 +28,25 @@ framework_res_source_path := APPS/framework-res_intermediates/src
# the library
# ============================================================
+#
+# These will be included in framework2 to avoid issues with the limit
+# on the number of classes/dex
+SECONDARY_FRAMEWORKS_SUBDIRS :=
+ core/java/android/test
+ core/java/android/gesture
+ core/java/android/speech/srec
+ media/java/android/media/videoeditor
+ media/java/android/media/audiofx
+ media/mca/effect/java/android/media/effect
+ media/mca/effect/java/android/media/effect/effects
+
include $(CLEAR_VARS)
# FRAMEWORKS_BASE_SUBDIRS comes from build/core/pathmap.mk
LOCAL_SRC_FILES := $(call find-other-java-files,$(FRAMEWORKS_BASE_SUBDIRS))
+SECONDARY_SRC_FILES := $(call find-other-java-files,$(SECONDARY_FRAMEWORKS_SUBDIRS))
+
+LOCAL_SRC_FILES := $(filter-out $(SECONDARY_SRC_FILES),$(LOCAL_SRC_FILES))
# EventLogTags files.
LOCAL_SRC_FILES +=
@@ -252,6 +267,7 @@ $(full_classes_compiled_jar): $(framework_res_R_stamp)
$(LOCAL_INSTALLED_MODULE): | $(dir $(LOCAL_INSTALLED_MODULE))framework-res.apk
framework_built := $(call java-lib-deps,framework)
+framework_built += $(call java-lib-deps,framework2)
# AIDL files to be preprocessed and included in the SDK,
# relative to the root of the build tree.
@@ -390,6 +406,7 @@ framework_docs_LOCAL_JAVA_LIBRARIES :=
core
ext
framework
+ framework2
framework_docs_LOCAL_MODULE_CLASS := JAVA_LIBRARIES
framework_docs_LOCAL_DROIDDOC_HTML_DIR := docs/html
@@ -664,7 +681,7 @@ include $(CLEAR_VARS)
LOCAL_SRC_FILES:=$(framework_docs_LOCAL_SRC_FILES)
LOCAL_INTERMEDIATE_SOURCES:=$(framework_docs_LOCAL_INTERMEDIATE_SOURCES)
-LOCAL_JAVA_LIBRARIES:=$(framework_docs_LOCAL_JAVA_LIBRARIES) framework
+LOCAL_JAVA_LIBRARIES:=$(framework_docs_LOCAL_JAVA_LIBRARIES) framework framework2
LOCAL_MODULE_CLASS:=$(framework_docs_LOCAL_MODULE_CLASS)
LOCAL_DROIDDOC_SOURCE_PATH:=$(framework_docs_LOCAL_DROIDDOC_SOURCE_PATH)
LOCAL_DROIDDOC_HTML_DIR:=$(framework_docs_LOCAL_DROIDDOC_HTML_DIR)
@@ -717,6 +734,26 @@ LOCAL_DX_FLAGS := --core-library
include $(BUILD_JAVA_LIBRARY)
+include $(CLEAR_VARS)
+
+# FRAMEWORKS_BASE_SUBDIRS comes from build/core/pathmap.mk
+LOCAL_SRC_FILES := $(call find-other-java-files,$(SECONDARY_FRAMEWORKS_SUBDIRS))
+
+LOCAL_NO_STANDARD_LIBRARIES := true
+LOCAL_JAVA_LIBRARIES := bouncycastle core core-junit ext framework
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := framework2
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+LOCAL_NO_EMMA_INSTRUMENT := true
+LOCAL_NO_EMMA_COMPILE := true
+
+#LOCAL_JARJAR_RULES := $(LOCAL_PATH)/jarjar-rules.txt
+
+LOCAL_DX_FLAGS := --core-library
+
+include $(BUILD_JAVA_LIBRARY)
# Include subdirectory makefiles
# ============================================================
@@ -726,3 +763,4 @@ include $(BUILD_JAVA_LIBRARY)
ifeq (,$(ONE_SHOT_MAKEFILE))
include $(call first-makefiles-under,$(LOCAL_PATH))
endif./frameworks/base/test-runner/Android.mk
LOCAL_SRC_FILES := $(call all-java-files-under, src)
-LOCAL_JAVA_LIBRARIES := core core-junit framework
+LOCAL_JAVA_LIBRARIES := core core-junit framework framework2
LOCAL_MODULE:= android.test.runner
直接照着做就ok了
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