我正在尝试记录用户关闭/启动手机，启用/禁用飞行模式以及连接/断开数据连接的时间。
我使用SharedPreferences来存储所有这些时间，使用Calendar.getInstance（）。getTime（）。toString（）
问题是，当我将设备置于飞机模式@（14:21:04），然后关闭设备@（14:24:08），然后重启@（14:30:06），然后禁用飞行模式@（14:34:04），日志输出所有事件的完全相同的时间，即使我间隔至少3分钟。
这是输出：
已发现设备。数据连接在2014年8月20日星期三14:21:04 PDT丢失
已发现设备。设备已于2014年8月20日星期三14:21:04 PDT关闭。
已发现设备。飞行模式于2014年8月20日星期三14:21:04 PDT启用
任何想法为什么？附：这不是为了恶意/坏意图:)
public class BootReceiver extends BroadcastReceiver {
private ProjectDebug LOGCAT = new ProjectDebug();
@Override
public void onReceive(final Context context, Intent intent) {
SharedPreferences GETT_VALUE = context.getSharedPreferences("TIME_SAVER", Context.MODE_PRIVATE);
SharedPreferences.Editor EDIT_VALUE = GETT_VALUE.edit();
String onReceive = "Boot Receiver",
TimeStamp = Calendar.getInstance().getTime().toString(),
GetShutDownTime = GETT_VALUE.getString("SHUTDOWN_TIME", ""),
GetAirPlaneTime = GETT_VALUE.getString("AIRPLANE_TIME", ""),
GetDataConnTime = GETT_VALUE.getString("DATACONN_TIME", "");
Editor SetShutDownTime = EDIT_VALUE.putString("SHUTDOWN_TIME", TimeStamp),
SetAirPlaneTime = EDIT_VALUE.putString("AIRPLANE_TIME", TimeStamp),
SetDataConnTime = EDIT_VALUE.putString("DATACONN_TIME", TimeStamp);
/** @DEVICE_SHUTDOWN_EVENT */
if (Intent.ACTION_SHUTDOWN.equalsIgnoreCase(intent.getAction())) {
LOGCAT.DEBUG(onReceive, "Shutting Down Device");
SetShutDownTime.commit();
}
/** @DEVICE_STARTUP_EVENT */
if (Intent.ACTION_BOOT_COMPLETED.equalsIgnoreCase(intent.getAction())) {
LOGCAT.DEBUG(onReceive, "Device Start Up Completed");
POST_DEVICE_STATE("Restart Event", "Device has been discovered. Device was powered off on " + GetShutDownTime, context);
}
/**@AIRPLANE_MODE_TOGGLE */
if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equalsIgnoreCase(intent.getAction().intern())) {
boolean isEnabled = Settings.System.getInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) == 1;
LOGCAT.DEBUG(onReceive, "Airplane Mode is turned " + (isEnabled ? "On" : "Off"));
if (isEnabled == true ) SetAirPlaneTime.commit();
if (isEnabled == false) POST_DEVICE_STATE("Airplane Event", "Device has been discovered. Airplane mode was enabled on " + GetAirPlaneTime, context);
} // Airplane mode was enabled on Wed Aug 13 16:44:54 PDT 2014
/**@ESTABLISHED_CONNECTION */
if (ConnectivityManager.CONNECTIVITY_ACTION.equalsIgnoreCase(intent.getAction())) {
LOGCAT.DEBUG(onReceive, "Data Connection is " + (isInternetAvailable(context) ? "Established" : "Lost"));
if ( isInternetAvailable(context)) POST_DEVICE_STATE("Connection Event", "Device has been discovered. Data connection was lost on " + GetDataConnTime, context);
if ( ! isInternetAvailable(context)) SetDataConnTime.commit();
}
}
/**
*
* @param context
* @param CURRENT_STATE
* latlong must have some value in it for url to work
*/
private void POST_DEVICE_STATE(final String Utility, final String CURRENT_STATE, final Context context) {
AsyncTask<Void, Void, Void> LOG_DEVICE_STATE = new AsyncTask<Void, Void, Void>() {
SharedPreferences Pref = context.getSharedPreferences("loginPrefs", Context.MODE_PRIVATE);
String Tag = "POST_DEVICE_STATE",
Username = (Pref.getString("username", USERNAME)),
Password = (Pref.getString("password", PASSWORD)),
STRIP_CURRENT_STATE = CURRENT_STATE.replace(" ", "+"),
URLlink="https://www.something.com/?type=json&uid="+Username+"&pwd="+Password+"&network_provider="+"&reverse_geocode="+STRIP_CURRENT_STATE;
@Override
protected Void doInBackground(Void... params) {
Looper.getMainLooper();
LOGCAT.DEBUG(Tag, CURRENT_STATE);
final Handler handler = new Handler(Looper.getMainLooper());
handler.postDelayed(new Runnable() {
@Override
public void run() {
if ( isInternetAvailable(context)) {
try { LOGCAT.DEBUG(Tag, "Posting " + Utility + " State to Server");
JSONObject sendlocation = JSONfunction.getJSONfromURL(URLlink,context);
sendlocation.getString("result");
} catch (Exception e) {
e.printStackTrace();
}
try { LOGCAT.DEBUG("LOG_DEVICE_STATE", "Getting GPS Location");
//GPS_Listener gps = new GPS_Listener(context);
//gps.GetMyLocation(context);
} catch (Exception e) {
e.printStackTrace();
}
}
if (! isInternetAvailable(context)) {
LOGCAT.DEBUG(Tag, "No Internet Detected While posting a " + Utility + ". Trying again in 10 seconds.");
POST_DEVICE_STATE(Utility, CURRENT_STATE, context);
}
}
}, 10000); //Execute code after 10 Sec
return null;
}
}; LOG_DEVICE_STATE.execute();
}
private boolean isInternetAvailable(Context context) {
ConnectivityManager Connection = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo Internet = Connection.getActiveNetworkInfo();
if (Internet != null && Internet.isConnected()) { // IF INTERNET IS THERE//
return true;
} else {
return false;
}
}
}
答案 0 :(得分：0)
即使在执行条件之前，您也正在写入共享首选项。 然后相应地进行更改。 只有在可以解决问题的条件下才会插入更改。