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Added new Android build target and makefile utils.

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Previously Android.mk only had a rule for the Flatbuffers test. There
is now an empty module definition so that flatbuffers can be included
as an Android module in other projects.

Additionally, android/jni/include.mk has been added which contains
some utility functions that can be used by projects using Flatbuffers
to generate header build rules and set up dependencies.

A sample project has been added to the samples directory to
demonstrate how to use flatbuffers with Android.

Tested by compiling Android project on Linux.

Change-Id: I25d6da40f6531777b22f7371187e0a2f4e903ad4
This commit is contained in:
Alex Ames
2015-01-26 14:51:01 -08:00
parent 79c2d80ed4
commit ff1ac8ab5a
7 changed files with 333 additions and 10 deletions
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56
samples/android/jni/Android.mk Executable file
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# Copyright (c) 2013 Google, Inc.
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
LOCAL_PATH := $(call my-dir)
FLATBUFFERS_ROOT_DIR := $(LOCAL_PATH)/../../..
# FlatBuffers test
include $(CLEAR_VARS)
# Include the FlatBuffer utility function to generate header files from schemas.
include $(FLATBUFFERS_ROOT_DIR)/android/jni/include.mk
LOCAL_MODULE := sample_android_project
# Set up some useful variables to identify schema and output directories and
# schema files.
ANDROID_SAMPLE_GENERATED_OUTPUT_DIR := $(LOCAL_PATH)/gen/include
ANDROID_SAMPLE_SCHEMA_DIR := $(LOCAL_PATH)/schemas
ANDROID_SAMPLE_SCHEMA_FILES := $(ANDROID_SAMPLE_SCHEMA_DIR)/animal.fbs
LOCAL_C_INCLUDES := $(ANDROID_SAMPLE_GENERATED_OUTPUT_DIR)
$(info $(LOCAL_C_INCLUDES))
LOCAL_SRC_FILES := main.cpp
LOCAL_CPPFLAGS := -std=c++11 -fexceptions -Wall -Wno-literal-suffix
LOCAL_LDLIBS := -llog -landroid
LOCAL_ARM_MODE := arm
LOCAL_STATIC_LIBRARIES := android_native_app_glue flatbuffers
ifeq (,$(ANDROID_SAMPLE_RUN_ONCE))
ANDROID_SAMPLE_RUN_ONCE := 1
$(call flatbuffers_header_build_rules,$(ANDROID_SAMPLE_SCHEMA_FILES),$(ANDROID_SAMPLE_SCHEMA_DIR),$(ANDROID_SAMPLE_GENERATED_OUTPUT_DIR),,$(LOCAL_SRC_FILES))
endif
include $(BUILD_SHARED_LIBRARY)
# Path to Flatbuffers root directory.
$(call import-add-path,$(FLATBUFFERS_ROOT_DIR)/..)
$(call import-module,flatbuffers/android/jni)
$(call import-module,android/native_app_glue)