Android-C代码获取系统属性

Posted 2022-12-06 胖子luffy

1.添加头文件：

#include <cutils/properties.h>

2.

system/core/libcutils/properties.c

#define PROPERTY_KEY_MAX   32
#define PROPERTY_VALUE_MAX  92

int property_get(const char *key, char *value, const char *default_value);
int property_set(const char *key, const char *value);
int property_list(void (*propfn)(const char *key, const char *value, void *cookie), void *cookie);

使用：

#include "cutils/properties.h"

char prop[PROPERTY_VALUE_MAX] = "000";
if(property_get("prop_name", prop, NULL) != 0) 
    ...

3.android.mk添加：

LOCAL_STATIC_LIBRARIES :=libcutils