3
因此,我製作了這段代碼以獲取GPS位置,日期 和時間的值。然後我會嘗試使它們成爲JSON,並通過Wi-Fi將它們發送到服務器。無論如何,問題是它總是讀取以前的位置值 。它總是讀取 之前值提供的JSON的「網絡」部分的值。 當前位置,如果您運行代碼 ,您可以看到打印的只有兩個括號「{}」。在SL4a中使用Python讀取GPS值不起作用
當我直接從手機運行腳本 時,手機上的GPS圖標不會激活。我想代碼是自我解釋,但如果 有任何問題,請問。
import android,time,datetime
droid = android.Android()
latitudine = "initial value"
longitudine = "initial value"
indexVal = 1
lostSignal = False
while True:
print "~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~\nNew reading: #" + str(indexVal) +"\n"
droid.startLocating()
locatie = droid.readLocation().result
droid.stopLocating()
print "Reading result: " + str(locatie)
if locatie == {}:
print "Current location information not available"
locatie=droid.getLastKnownLocation().result
if locatie != {}:
if locatie['gps'] == None:
if locatie['network'] == {}:
latitudine = str(locatie['passive']['latitude'])
longitudine = str(locatie['passive']['longitude'])
print "Reading passive data (from last known location):"
print longitudine
print latitudine
lostSignal = True
elif locatie['network'] != {}:
latitudine = str(locatie['network']['latitude'])
longitudine = str(locatie['network']['longitude'])
print "Reading data from network:"
print latitudine
print longitudine
lostSignal = True
elif locatie['gps']!=None:
if lostSignal == True:
droid.vibrate(500)
lostSignal = False
latitudine=str(locatie['gps']['latitude'])
longitudine=str(locatie['gps']['longitude'])
print "Reading data from GPS:"
print latitudine
print longitudine
droid.notify("GPS found","GPS signal found.\nData aquired")
print "\nFull available information:\n"
for locInfo in locatie.iteritems():
print str(locInfo)
print "\n"
now = datetime.datetime.now()
ora = now.hour
minut = now.minute
secunda = now.second
ziua = now.day
luna = now.month
an = now.year
print str(ora)+":"+str(minut)+":"+str(secunda)+"/"+str(ziua)+"-"+str(luna)+"-"+str(an)
indexVal += 1
time.sleep(20)
getLastKnownLocation中列出的時間對我來說似乎非常當前(在腳本運行時間的一秒內)。我也爲{}讀取位置,但它似乎並不是一個真正的問題。如果在運行腳本之前打開GPS,我只能在提供者部分獲取GPS值。它似乎像startLocating實際上並沒有打開GPS,如果它關閉。 – 2012-02-23 16:29:41
我在啓動腳本之前打開GPS,但它仍然無法工作。我設法找到了解決方案。如果您還打開了我認爲毫無意義的移動數據連接,則該腳本正常工作,因爲從理論上講,您應該只與GPS衛星「交談」。或者,也許我弄錯了,GPS衛星與載波通信? – raduq 2012-02-23 19:56:24