新增：实现testHello())，生成libcomclientjni.so，供APP调用。

.gitignore

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+/build/libs/
+/build/obj/

README.md

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+## V1.0.1
+
+### 新增：
+
+实现testHello())，生成libcomclientjni.so，供APP调用。

build/Ndk_Android.mk

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+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../code/
+
+LOCAL_LDLIBS := -llog -lc
+
+LOCAL_SRC_FILES := \
+                ../code/comclientjni.cpp
+
+LOCAL_CFLAGS := -D__OS_ANDROID
+LOCAL_CPPFLAGS += -std=c++11 -android
+
+LOCAL_MODULE := comclientjni
+
+# LOCAL_LDFLAGS := -Wl,--hash-style=both
+
+include $(BUILD_SHARED_LIBRARY)

build/Ndk_Application.mk

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+APP_STL:=gnustl_static
+#APP_STL:=c++_static
+APP_ABI:=armeabi-v7a
+APP_PLATFORM:=android-23
+APP_BUILD_SCRIPT:=Ndk_Android.mk

build/ndk_make.sh

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+#!/bin/bash
+
+source /opt/ndk/env/ndk_env.sh
+
+# 定义颜色
+RED="\033[0;31m"
+GREEN="\033[0;32m"
+YELLOW="\033[1;33m"
+BLUE="\033[0;34m"
+RESET="\033[0m"
+
+# 路径
+NDK_PROJECT_PATH=$(pwd)
+APP_MK="./Ndk_Application.mk"
+ANDROID_MK="./Ndk_Android.mk"
+FIRMWARE_PATH="obj/local/armeabi-v7a/myapp"
+DEVICE_DATA="/data/"
+DEVICE_IP=""
+
+clean() {
+    echo -e "${YELLOW}Cleaning up...${RESET}"
+    ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=$APP_MK APP_BUILD_SCRIPT=$ANDROID_MK clean
+    echo -e "${YELLOW}Removing obj/ and libs/ directories...${RESET}"
+    rm -rf obj/ libs/
+    sync
+    echo -e "${GREEN}Cleaned up.${RESET}"
+}
+
+build_only() {
+    echo -e "${BLUE}Building myapp...${RESET}"
+    ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=$APP_MK APP_BUILD_SCRIPT=$ANDROID_MK
+    echo -e "${GREEN}Only build completed successfully.${RESET}"
+}
+
+push_only() {
+    if [ -z "$DEVICE_IP" ]; then
+        echo -e "${RED}Error: No device IP provided. Use -p <IP>${RESET}"
+        exit 1
+    fi
+    echo -e "${BLUE}Connecting to device $DEVICE_IP...${RESET}"
+    adb connect $DEVICE_IP
+    if [ $? -ne 0 ]; then
+        echo -e "${RED}Failed to connect to device $DEVICE_IP${RESET}"
+        exit 1
+    fi
+
+    echo -e "${BLUE}Pushing myapp to $DEVICE_DATA...${RESET}"
+    adb -s $DEVICE_IP push $FIRMWARE_PATH $DEVICE_DATA
+    if [ $? -ne 0 ]; then
+        echo -e "${RED}Failed to push myapp to $DEVICE_DATA${RESET}"
+        exit 1
+    fi
+
+    echo -e "${GREEN}Push completed successfully.${RESET}"
+}
+
+build_and_push() {
+    build_only
+    push_only
+}
+
+show_help() {
+    echo -e "${YELLOW}Usage: $0 [options]${RESET}"
+    echo
+    echo "Options:"
+    echo -e "  ${BLUE}-c${RESET}            Clean project (remove obj/ and libs/)"
+    echo -e "  ${BLUE}-p <IP>${RESET}       Push myapp to device with given IP"
+    echo -e "  ${BLUE}-bp <IP>${RESET}      Build and push to device with given IP"
+    echo -e "  ${BLUE}-h${RESET}            Show this help message"
+    echo
+    echo -e "${YELLOW}Default:${RESET} If no options are given, only build the project."
+}
+
+# 参数解析
+if [ $# -eq 0 ]; then
+    build_only
+    exit 0
+fi
+
+case "$1" in
+    -c)
+        clean
+        ;;
+    -p)
+        DEVICE_IP="$2"
+        push_only
+        ;;
+    -bp)
+        DEVICE_IP="$2"
+        build_and_push
+        ;;
+    -h)
+        show_help
+        ;;
+    *)
+        show_help
+        exit 1
+        ;;
+esac

code/com_myjni_mynative_MyClientCmd.h

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+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include "jni.h"
+/* Header for class com_myjni_mynative_MyClientCmd */
+
+#ifndef _Included_com_myjni_mynative_MyClientCmd
+#define _Included_com_myjni_mynative_MyClientCmd
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     com_myjni_mynative_MyClientCmd
+ * Method:    testHello
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_com_myjni_mynative_MyClientCmd_testHello
+  (JNIEnv *, jobject);
+
+#ifdef __cplusplus
+}
+#endif
+#endif

code/comclientjni.cpp

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+#include "com_myjni_mynative_MyClientCmd.h"
+#include <iostream>
+#include <stdio.h>
+#include <android/log.h>
+
+#define LOG_TAG "MyClientCmd"
+
+JNIEXPORT void JNICALL Java_com_myjni_mynative_MyClientCmd_testHello(JNIEnv *, jobject)
+{
+    printf("this is C++ print");
+    __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "this is C++ print");
+}