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2014/10/15 ¤U¤Č 10:13:55
iphone Programming Glossary: sensorhttp://stackoverflow.com/questions/165539/iphone-proximity-sensor Proximity Sensor Can the iPhone SDK take advantage of the iPhone's proximity sensors If so why hasn't anyone taken advantage of them I could picture a few decent uses. For example in a racing game you could.. of them I could picture a few decent uses. For example in a racing game you could put your finger on the proximity sensor to go instead of taking up screen real estate with your thumb. Of course though if this was your only option then iPod touch.. though if this was your only option then iPod touch users wouldn't be able to use the application. Does the proximity sensor tell how close you are or just that something is in front of it iphone api sensor proximity share improve this question..
http://stackoverflow.com/questions/1981390/urlwithstring-returns-nil @ http maps.google.com maps geo q @ Montréal Communauté Urbaine de Montréal Québec Canadae output csv oe utf8 sensor false key webName NSURL url NSURL URLWithString stringURL iphone objective c url nsstring nsurl share improve this question.. @ http maps.google.com maps geo q @ Montréal Communauté Urbaine de Montréal Québec Canadae output csv oe utf8 sensor false webName NSString webStringURL stringURL stringByAddingPercentEscapesUsingEncoding NSUTF8StringEncoding NSURL url NSURL..
http://stackoverflow.com/questions/221592/geolocation-api-on-the-iphone markers size small color blue location.coords.latitude location.coords.longitude zoom 14 size 256x256 sensor false' html.push p Longitude location.coords.longitude p html.push p Latitude location.coords.latitude p html.push p Accuracy..
Enable iPhone accelerometer while screen is locked http://stackoverflow.com/questions/2529422/enable-iphone-accelerometer-while-screen-is-locked I filed a bug with Apple about it and they fixed it in 3.1.2. One trick I use in an app is to enable the proximity sensor. This allows my app to continue running but if the user puts their phone in their pocket or otherwise trips the sensor the.. sensor. This allows my app to continue running but if the user puts their phone in their pocket or otherwise trips the sensor the screen turns off and doesn't consume power. Meanwhile my app is still running and 3.1.2 or later the accelerometer continues..
how use google api in iphone to query hotels around my place http://stackoverflow.com/questions/2864682/how-use-google-api-in-iphone-to-query-hotels-around-my-place Request http maps.google.com maps api place search json location 40.717859 73.957790 radius 1600 client clientId sensor true_or_false signature SIGNATURE Response status OK results name Williamsburg types locality political icon http maps.gstatic.com..
iPhone 4 Camera Specifications - Field of View / Vertical-Horizontal Angle http://stackoverflow.com/questions/3594199/iphone-4-camera-specifications-field-of-view-vertical-horizontal-angle angle of the rear camera. Thanks iphone camera augmented reality iphone 4 share improve this question If the sensor is 3.39 mm tall referenced to landscape mode then half that is 1.695 mm. Focal length for the iPhone 4 is listed as 3.85.. vertical. ADDED much later The focal length for the newer iPhone 4S back camera is listed as 4.28 mm but with the same sensor dimensions as the older iPhone 4. So 2 atan 2.26 4.28 55.7 degrees by 2 atan 1.695 4.28 43.2 degrees or roughly a 4 to 5..
Turn off display in iPhone OS (iOS) http://stackoverflow.com/questions/3950194/turn-off-display-in-iphone-os-ios
Compensating compass lag with the gyroscope on iPhone 4 http://stackoverflow.com/questions/4212988/compensating-compass-lag-with-the-gyroscope-on-iphone-4 s2 if you put on the desk with screen upright actualy it hard to get 0 or maximum value of the gravity due to the sensor noise it's normal all sensor has a noise expecially cheap sensor . what i do on my apps is I will switch my reference axis.. with screen upright actualy it hard to get 0 or maximum value of the gravity due to the sensor noise it's normal all sensor has a noise expecially cheap sensor . what i do on my apps is I will switch my reference axis to other axis in your case.. to get 0 or maximum value of the gravity due to the sensor noise it's normal all sensor has a noise expecially cheap sensor . what i do on my apps is I will switch my reference axis to other axis in your case may be x or y for certain limits how..
http://stackoverflow.com/questions/5894580/sensor-fusion-on-ios-devices Fusion on iOS Devices I'm trying to find out how could I start to implement sensor fusion on the iPhone. I've started from this talk from David Sachs Sensor Fusion on Android Devices Although David's talk.. Thanks iphone ios accelerometer compass geolocation gyroscope share improve this question I have implemented sensor fusion for Shimmer 2 devices based on this manuscript . I highly recommend it. Sensor fusion is often achieved by Kalman..
How to set accuracy and distance filter when using MKMapView http://stackoverflow.com/questions/5930612/how-to-set-accuracy-and-distance-filter-when-using-mkmapview self Pinpoint our location with the following accuracy kCLLocationAccuracyBestForNavigation highest sensor data kCLLocationAccuracyBest highest kCLLocationAccuracyNearestTenMeters 10 meters kCLLocationAccuracyHundredMeters 100..
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