fix: tZ 参数不设置默认值, 根据环境获取时区字符串, 传入 tZ 则用自定义的时区

main.go

@@ -58,7 +58,7 @@ var customDNS = flag.String("dns", "", "Custom DNS server address, example: 8.8.
 var newPassword = flag.String("resetPassword", "", "Reset password to the one entered")
 
 // 修正安卓时区
-var timeZone = flag.String("tZ", "Asia/Shanghai", "fix Android Time Zone")
+var timeZone = flag.String("tZ", "", "fix Android Time Zone")
 
 //go:embed static
 var staticEmbeddedFiles embed.FS

util/andriod_time.go

@@ -1,6 +1,10 @@
 package util
 
-import "time"
+import (
+	"os/exec"
+	"strings"
+	"time"
+)
 
 func FixTimezone(timeZoneStr string) {
 	offset, err := getTimeZoneOffset(timeZoneStr)
@@ -16,6 +20,15 @@ func FixTimezone(timeZoneStr string) {
 
 // 将时区字符串转换为偏移量（以小时为单位）
 func getTimeZoneOffset(timeZoneStr string) (int, error) {
+	// tZ 没有设置，从 安卓环境 persist.sys.timezone 获取
+	if timeZoneStr == "" {
+		out, err := exec.Command("/system/bin/getprop", "persist.sys.timezone").Output()
+		if err != nil {
+			return 0, err
+		}
+		timeZoneStr = strings.TrimSpace(string(out))
+	}
+
 	// 获取时区信息
 	location, err := time.LoadLocation(timeZoneStr)
 	if err != nil {