Very nice work on the iOS development. I've been reading your articles with greate interest.
While watching your video about GPS on iOS, I noticed your altitude is also shown, but when I build and test the app on my phone. The altitude shows 0 ft
Going over the build-log and the source I could not find the problem, a google search let me to a forum, where someone stated he had to call the delegate 3 or 4 times before the altitude was shown (this was not about your example)
It takes a couple of iterations for the altitude to be shown. It may also be an issue of platform. I haven't looked, but maybe it only works on 3GS and 4? Maybe only with iOS 4+?
When I run it, it takes several seconds for the altitude to get a fix. It actually took well over a minute right now.
Just let the app run for two minutes and watch it.
Unfortunately I cannot run the FMX_GPS demo, it compiles in my windows virtual windows but in XCODE I get different errors:
On iPhone 5.1 Simulator I get this :” Command / bin/sh failed with exit code 1.
If I run this on my device then I get 9 issues: cp: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Info.plist: No such file or directory cp: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF/FMX_GPS: No such file or directory rm: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Info.plist: No such file or directory rm: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF/FMX_GPS: No such file or directory rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF: No such file or directory rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources: No such file or directory rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents: No such file or directory rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM: No such file or directory
I appreciate your respond to this matter. Thanks Navid
These errors have nothing to do with the cause. It's probably missing the component PAS file. Make sure you add the component source code files to the project on the Xcode side.
Now that Delphi XE5 is shipping, I am assuming that the Free Pascal Wrapper is no longer necessary because of the additional control support in the product. Here is some code that I wrote (that doesn't use FPC) that will work on iOS and Android using the OrientationSensor. The only problem is that my code only works when the device is laying perfectly flat if it is tilted in anyway the compass is off. Can you tell me what I need to do to correct the compass for tilt?
procedure TMainF.OrientationSensor1DataChanged(Sender: TObject); var X,Y,d,Deg : Double; begin X := OrientationSensor1.Sensor.HeadingX; Y := OrientationSensor1.Sensor.HeadingY; d := ABS(X/Y); Deg := RadToDeg(ArcTan(d)); XLbl.Text := 'X=' + FloatToStr(X); YLbl.Text := 'Y=' + FloatToStr(Y); dLbl.Text := 'd=' + FloatToStr(d); { adjust degree for quadrant } if (Y >= 0) and (X <= 0) then Deg := Deg else if (Y < 0) and (X <= 0) then Deg := 180 - Deg else if (Y 0) then Deg := 180 + Deg else if (Y >= 0) and (X > 0) then Deg := 360 - Deg; DegLbl.Text := 'Deg=' + FloatToStr(Deg); Compass.RotationAngle := -Deg; { display compass direction } end;
Note: There is a property: OrientationSensor1.Sensor.MagHeading but on my device it always displays as "NAN"
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Dear Anders,
ReplyDeleteVery nice work on the iOS development.
I've been reading your articles with greate interest.
While watching your video about GPS on iOS, I noticed your altitude
is also shown, but when I build and test the app on my phone.
The altitude shows 0 ft
Going over the build-log and the source I could not find the problem, a google search let me to a forum, where someone stated he had to call the delegate 3 or 4 times before the altitude was shown (this was not about your example)
Do you have any idea's about the matter ?
Thanks in advance,
Jonathan
It takes a couple of iterations for the altitude to be shown. It may also be an issue of platform. I haven't looked, but maybe it only works on 3GS and 4? Maybe only with iOS 4+?
ReplyDeleteWhen I run it, it takes several seconds for the altitude to get a fix. It actually took well over a minute right now.
Just let the app run for two minutes and watch it.
Hi Anders
ReplyDeleteThanks for the great work.
Unfortunately I cannot run the FMX_GPS demo, it compiles in my windows virtual windows but in XCODE I get different errors:
On iPhone 5.1 Simulator I get this :” Command / bin/sh failed with exit code 1.
If I run this on my device then I get 9 issues:
cp: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Info.plist: No such file or directory
cp: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF/FMX_GPS: No such file or directory
rm: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Info.plist: No such file or directory
rm: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF/FMX_GPS: No such file or directory
rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources/DWARF: No such file or directory
rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents/Resources: No such file or directory
rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM/Contents: No such file or directory
rmdir: /Users/navidjamshidi/Library/Developer/Xcode/DerivedData/FMX_GPS-asxadtzyoowpgbefxrguhnmabrgj/Build/Products/Release-iphoneos/FMX_GPS.app/FMX_GPS.dSYM: No such file or directory
I appreciate your respond to this matter.
Thanks
Navid
These errors have nothing to do with the cause. It's probably missing the component PAS file. Make sure you add the component source code files to the project on the Xcode side.
ReplyDeleteHi Anders,
ReplyDeleteNow that Delphi XE5 is shipping, I am assuming that the Free Pascal Wrapper is no longer necessary because of the additional control support in the product. Here is some code that I wrote (that doesn't use FPC) that will work on iOS and Android using the OrientationSensor. The only problem is that my code only works when the device is laying perfectly flat if it is tilted in anyway the compass is off. Can you tell me what I need to do to correct the compass for tilt?
procedure TMainF.OrientationSensor1DataChanged(Sender: TObject);
var
X,Y,d,Deg : Double;
begin
X := OrientationSensor1.Sensor.HeadingX;
Y := OrientationSensor1.Sensor.HeadingY;
d := ABS(X/Y);
Deg := RadToDeg(ArcTan(d));
XLbl.Text := 'X=' + FloatToStr(X);
YLbl.Text := 'Y=' + FloatToStr(Y);
dLbl.Text := 'd=' + FloatToStr(d);
{ adjust degree for quadrant }
if (Y >= 0) and (X <= 0) then
Deg := Deg
else if (Y < 0) and (X <= 0) then
Deg := 180 - Deg
else if (Y 0) then
Deg := 180 + Deg
else if (Y >= 0) and (X > 0) then
Deg := 360 - Deg;
DegLbl.Text := 'Deg=' + FloatToStr(Deg);
Compass.RotationAngle := -Deg; { display compass direction }
end;
Note: There is a property: OrientationSensor1.Sensor.MagHeading but on my device it always displays as "NAN"
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Naptimes at your child's daycare can be made sweeter and safer
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traz а garantia dе total compatibilidade
com ο seu aparelho.
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Ѕе а sua tela quebrou, compre agora
е tenha о ѕᥱu aparelho noνо outra ѵez.
Peça dе reposiçãօ ρara ⲟ
ѕеu IPHONE 6 ᏢLUS, essa tela traz a garantia Ԁе total compatibilidade сom ⲟ ѕeu aparelho.
Α substituiçãο desta tela, restabelece todas
аѕ funçõᥱs ԁߋ
touch е LCD (VIDRO/TOQUE E IMAGEM).
Ѕе ɑ sua tela quebrou, compre agora ᥱ tenha o ѕеu aparelho noѵⲟ outra ѵez.
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