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2014/10/16 ¤W¤È 08:10:59
android Programming Glossary: calculatedComplete Working Sample of the Gmail Three-Fragment Animation Scenario? http://stackoverflow.com/questions/12253965/complete-working-sample-of-the-gmail-three-fragment-animation-scenario a safer implementation is that the dimentions are be calculated first time in draw . instead of in post Scale and Translate..
android CountDownTimer - additional milliseconds delay between ticks http://stackoverflow.com/questions/12762272/android-countdowntimer-additional-milliseconds-delay-between-ticks you said you also noticed that the next time in onTick is calculated from the time the previous onTick ran which introduces a tiny..
Android Compass that can Compensate for Tilt and Pitch http://stackoverflow.com/questions/16317599/android-compass-that-can-compensate-for-tilt-and-pitch accuracy of magnetic field sensor values calculated once gravity and magnetic field vectors are available float.. and m_pitch_radians have successfully been calculated following a call to onSensorChanged ... float m_azimuth_radians.. 2 break NB the rotation matrix has now effectively been calculated. It consists of the three vectors m_NormEastVector m_NormNorthVector..
Android multiple screen sizes with same density http://stackoverflow.com/questions/2638202/android-multiple-screen-sizes-with-same-density image 300 pixels wide will be 1.875 inches across. This is calculated by pixel size 300 density 160 . Now if you compare this to the..
Mapview getLatitudeSpan and getLongitudeSpan not working http://stackoverflow.com/questions/2667386/mapview-getlatitudespan-and-getlongitudespan-not-working may be rather timing dependent. In theory they should be calculated after you have set the center and set the zoom but I suspect.. set the zoom but I suspect that they really aren't being calculated until after the MapView is rendered and possibly not until some..
Query to get records based on Radius in SQLite? http://stackoverflow.com/questions/3126830/query-to-get-records-based-on-radius-in-sqlite appearances of sin and cos like SIN 12.345 PI 180 can be calculated in the program before running the query the big distance expression..
http://stackoverflow.com/questions/3132021/android-listview-illegalstateexception-the-content-of-the-adapter-has-changed contents and update ListView partially while results are calculated. What I know I have to avoid I cannot mess with ListAdapter..
getting the screen density programmatically in android? http://stackoverflow.com/questions/3166501/getting-the-screen-density-programmatically-in-android . The same value now provided by metrics.densityDpi can be calculated int densityDpi int metrics.density 160f share improve this..
How to center progress indicator in ProgressDialog easily (when no title/text passed along) http://stackoverflow.com/questions/3225889/how-to-center-progress-indicator-in-progressdialog-easily-when-no-title-text-pa some padding margin on the right hand side is still being calculated in for optional text on the right although we're not passing..
How to query Android MediaStore Content Provider, avoiding orphaned images? http://stackoverflow.com/questions/3680357/how-to-query-android-mediastore-content-provider-avoiding-orphaned-images fail to return images that do not already have thumbnails calculated. Instead query for the actual images themselves mImageCursor..
How to use an OpenCV rotation and translation vector with OpenGL ES in Android? http://stackoverflow.com/questions/3712049/how-to-use-an-opencv-rotation-and-translation-vector-with-opengl-es-in-android with opencv and then using cvFindExtrinsicCameraParams2 I calculated a rotation and translation vector. For this I used 4 object.. me a pretty good rotation and translation matrix. I also calculated the rotation matrix with cvRodrigues2 since using this is easier..
Calculate compass bearing / heading to location in Android http://stackoverflow.com/questions/4308262/calculate-compass-bearing-heading-to-location-in-android to a destination location instead of north . a I have calculated north using the sensor values from the magnetometer and accelerometer... up with the compass used on the Google Map view. b I have calculated the initial bearing from my location to the destination location..
Android phone orientation overview including compass http://stackoverflow.com/questions/4819626/android-phone-orientation-overview-including-compass out the top. The rotation matrix is being constantly calculated by the phone and allows mapping between the two. So am I right..
How to perform zoom in/out ,rotation together in Android http://stackoverflow.com/questions/5256421/how-to-perform-zoom-in-out-rotation-together-in-android it again to Bitmap2. for example you can use a Matrix calculated using touch events in order to apply it to the two Bitmaps...
How can you tell when a layout has been drawn? http://stackoverflow.com/questions/7733813/how-can-you-tell-when-a-layout-has-been-drawn the child views are done. So the width and height is not calculated yet. To get the height and width. Put this on the onCreate method..
Android: Detect Orientation Changed http://stackoverflow.com/questions/8248274/android-detect-orientation-changed that complicated I used a OrientationEventListener and calculated if the orientation is in the 4 orientation points in my code..
Complete Working Sample of the Gmail Three-Fragment Animation Scenario? http://stackoverflow.com/questions/12253965/complete-working-sample-of-the-gmail-three-fragment-animation-scenario occupies the all available space. It calculates width at runtime a safer implementation is that the dimentions are be calculated first time in draw . instead of in post Scale and Translate animations actually resize and move the view and not pseudo..
android CountDownTimer - additional milliseconds delay between ticks http://stackoverflow.com/questions/12762272/android-countdowntimer-additional-milliseconds-delay-between-ticks ... android share improve this question Rewrite As you said you also noticed that the next time in onTick is calculated from the time the previous onTick ran which introduces a tiny error on every tick. I changed the CountDownTimer source code..
Android Compass that can Compensate for Tilt and Pitch http://stackoverflow.com/questions/16317599/android-compass-that-can-compensate-for-tilt-and-pitch int m_GravityAccuracy accuracy of gravity sensor int m_MagneticFieldAccuracy accuracy of magnetic field sensor values calculated once gravity and magnetic field vectors are available float m_NormEastVector normalised cross product of raw gravity vector.. to magnetic north boolean m_OrientationOK set true if m_azimuth_radians and m_pitch_radians have successfully been calculated following a call to onSensorChanged ... float m_azimuth_radians angle of the device from magnetic north float m_pitch_radians.. case Surface.ROTATION_270 screen_adjustment 3 float Math.PI 2 break NB the rotation matrix has now effectively been calculated. It consists of the three vectors m_NormEastVector m_NormNorthVector and m_NormGravityVector calculate all the required..
Android multiple screen sizes with same density http://stackoverflow.com/questions/2638202/android-multiple-screen-sizes-with-same-density has a resolution 480x320 and a density of approx 160dpi. An image 300 pixels wide will be 1.875 inches across. This is calculated by pixel size 300 density 160 . Now if you compare this to the screen of the Nexus One Droid or similar these models have..
Mapview getLatitudeSpan and getLongitudeSpan not working http://stackoverflow.com/questions/2667386/mapview-getlatitudespan-and-getlongitudespan-not-working AFAIK those values will eventually become available but they may be rather timing dependent. In theory they should be calculated after you have set the center and set the zoom but I suspect that they really aren't being calculated until after the MapView.. they should be calculated after you have set the center and set the zoom but I suspect that they really aren't being calculated until after the MapView is rendered and possibly not until some map data from the Internet is downloaded. So isolate your..
Query to get records based on Radius in SQLite? http://stackoverflow.com/questions/3126830/query-to-get-records-based-on-radius-in-sqlite lat and lon . Since cos a b cos a cos b sin a sin b and other appearances of sin and cos like SIN 12.345 PI 180 can be calculated in the program before running the query the big distance expression reduces to something of the form P SIN_LAT Q COS_LAT..
http://stackoverflow.com/questions/3132021/android-listview-illegalstateexception-the-content-of-the-adapter-has-changed want to do run a background thread which calculates ListView contents and update ListView partially while results are calculated. What I know I have to avoid I cannot mess with ListAdapter contents from background thread so I inherited AsyncTask and..
getting the screen density programmatically in android? http://stackoverflow.com/questions/3166501/getting-the-screen-density-programmatically-in-android
How to center progress indicator in ProgressDialog easily (when no title/text passed along) http://stackoverflow.com/questions/3225889/how-to-center-progress-indicator-in-progressdialog-easily-when-no-title-text-pa point of view . But the image is too far left it seems that some padding margin on the right hand side is still being calculated in for optional text on the right although we're not passing any text as parameter. It would just make life little easier..
How to query Android MediaStore Content Provider, avoiding orphaned images? http://stackoverflow.com/questions/3680357/how-to-query-android-mediastore-content-provider-avoiding-orphaned-images does not create thumbnails by default and so this query will fail to return images that do not already have thumbnails calculated. Instead query for the actual images themselves mImageCursor managedQuery MediaStore.Images.Media.EXTERNAL_CONTENT_URI ..
How to use an OpenCV rotation and translation vector with OpenGL ES in Android? http://stackoverflow.com/questions/3712049/how-to-use-an-opencv-rotation-and-translation-vector-with-opengl-es-in-android application on Android. What I did so far is detect a square with opencv and then using cvFindExtrinsicCameraParams2 I calculated a rotation and translation vector. For this I used 4 object points which are just the corners of a square around 0 0 0 and.. 0 0 and the 4 corners of the square in the image. This yields me a pretty good rotation and translation matrix. I also calculated the rotation matrix with cvRodrigues2 since using this is easier than the rotation vector. As long as I use these to draw..
Calculate compass bearing / heading to location in Android http://stackoverflow.com/questions/4308262/calculate-compass-bearing-heading-to-location-in-android on a google map view that displays my direction relative to a destination location instead of north . a I have calculated north using the sensor values from the magnetometer and accelerometer. I know this is correct because it lines up with the.. and accelerometer. I know this is correct because it lines up with the compass used on the Google Map view. b I have calculated the initial bearing from my location to the destination location by using myLocation.bearingTo destLocation I'm missing..
Android phone orientation overview including compass http://stackoverflow.com/questions/4819626/android-phone-orientation-overview-including-compass system is shown in figure B is fixed. Its Y axis always points out the top. The rotation matrix is being constantly calculated by the phone and allows mapping between the two. So am I right in thinking that the rotation matrix transforms the coordinate..
How to perform zoom in/out ,rotation together in Android http://stackoverflow.com/questions/5256421/how-to-perform-zoom-in-out-rotation-together-in-android 1 You need to keep the transformation done to Bitmap1 and apply it again to Bitmap2. for example you can use a Matrix calculated using touch events in order to apply it to the two Bitmaps. 2 I am not sure to uderstand what you want to do. What i understand..
How can you tell when a layout has been drawn? http://stackoverflow.com/questions/7733813/how-can-you-tell-when-a-layout-has-been-drawn width and height. onCreate is called before the layout of the child views are done. So the width and height is not calculated yet. To get the height and width. Put this on the onCreate method LinearLayout layout LinearLayout findViewById R.id.YOUD..
Android: Detect Orientation Changed http://stackoverflow.com/questions/8248274/android-detect-orientation-changed I need I implemented my own algorithm and actually it wasn't that complicated I used a OrientationEventListener and calculated if the orientation is in the 4 orientation points in my code I only detect LANDSCAPE_RIGHT and PORTRAIT_UP orientationListener..
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