Android Framework小知识
1.
c语言中输入命令并可以得到打印
int cmd_system(const char* command,char *out)
{
char* result = "";
FILE *fpRead;
fpRead = popen(command, "r");
char buf[128];
memset(buf,'\0',sizeof(buf));
while(fgets(buf,128-1,fpRead)!=NULL)
{
memcpy(out,buf,128);
}
if(fpRead!=NULL)
pclose(fpRead);
return 0;
}
//获取温度节点
cmd_system("cat sys/devices/platform/pinctrl/mt_gpio | grep 028",command);
result = command[7] - '0';
2.
自己写一个rc文件启动一个服务
service wkkinit /vendor/bin/wkk.sh
class core
user root
group shell log readproc
oneshot
writepid /dev/stune/foreground/tasks
seclabel u:r:vold:s0
在mk文件中加入或者直接拷贝到etc/init底下
LOCAL_INIT_RC := wkk.rc
PRODUCT_COPY_FILES += \
vendor/wkk/common/***/init_wkk.rc:$(TARGET_COPY_OUT_VENDOR)/etc/init/init_wkk.rc
3.
adb查找app并启动activity：pm list package
dumpsys package 包名
am start -n com.maxhub.screenshare.server.tv/com.maxhub.screenshare.server.ui.TVMainActivity
持续更新。。。。
