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2014/10/16 ¤W¤È 08:18:40
android Programming Glossary: math.sinHow to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one? http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on public float getInterpolation float input return float Math.sin input Math.PI as.setInterpolator i layer0.startLayerAnimation.. float getInterpolation float input float output float Math.sin Math.pow input 2.5f 12 Math.PI return 1 input output a.setInterpolator.. public float getInterpolation float input return float 1 Math.sin input Math.PI a.setInterpolator i a.setDuration 2000 layer2.startLayerAnimation..
Playing an arbitrary tone with Android http://stackoverflow.com/questions/2413426/playing-an-arbitrary-tone-with-android fill out the array for int i 0 i numSamples i sample i Math.sin 2 Math.PI i sampleRate freqOfTone convert to 16 bit pcm sound..
Android - SQlite Getting nearest locations (with latitude and longitude) http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude trueCourse Math.toRadians bearing double lat Math.asin Math.sin latA Math.cos angularDistance Math.cos latA Math.sin angularDistance.. Math.sin latA Math.cos angularDistance Math.cos latA Math.sin angularDistance Math.cos trueCourse double dlon Math.atan2.. Math.cos trueCourse double dlon Math.atan2 Math.sin trueCourse Math.sin angularDistance Math.cos latA Math.cos..
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw float cosVal float Math.cos value float sinVal float Math.sin value float lumR 0.213f float lumG 0.715f float lumB 0.072f..
How to calculate distance between two locations using their longitude and latitude value http://stackoverflow.com/questions/6981916/how-to-calculate-distance-between-two-locations-using-their-longitude-and-latitu lat1 lat2 double dLng Math.toRadians lng1 lng2 double a Math.sin dLat 2 Math.sin dLat 2 Math.cos Math.toRadians lat2 Math.cos.. dLng Math.toRadians lng1 lng2 double a Math.sin dLat 2 Math.sin dLat 2 Math.cos Math.toRadians lat2 Math.cos Math.toRadians.. Math.toRadians lat2 Math.cos Math.toRadians lat1 Math.sin dLng 2 Math.sin dLng 2 double c 2 Math.atan2 Math.sqrt a Math.sqrt..
How to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one? http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on run Animation a Interpolator i i new Interpolator @Override public float getInterpolation float input return float Math.sin input Math.PI as.setInterpolator i layer0.startLayerAnimation as a new TranslateAnimation 0 0 0 100 a.setDuration 3000.. 0 100 a.setDuration 3000 i new Interpolator @Override public float getInterpolation float input float output float Math.sin Math.pow input 2.5f 12 Math.PI return 1 input output a.setInterpolator i layer1.startLayerAnimation a a new AlphaAnimation.. a a new AlphaAnimation 0 1 i new Interpolator @Override public float getInterpolation float input return float 1 Math.sin input Math.PI a.setInterpolator i a.setDuration 2000 layer2.startLayerAnimation a OnClickListener l1 new OnClickListener..
Playing an arbitrary tone with Android http://stackoverflow.com/questions/2413426/playing-an-arbitrary-tone-with-android public void run playSound thread.start void genTone fill out the array for int i 0 i numSamples i sample i Math.sin 2 Math.PI i sampleRate freqOfTone convert to 16 bit pcm sound array assumes the sample buffer is normalised. int idx 0..
Android - SQlite Getting nearest locations (with latitude and longitude) http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude point.y double angularDistance range EarthRadius double trueCourse Math.toRadians bearing double lat Math.asin Math.sin latA Math.cos angularDistance Math.cos latA Math.sin angularDistance Math.cos trueCourse double dlon Math.atan2 Math.sin.. double trueCourse Math.toRadians bearing double lat Math.asin Math.sin latA Math.cos angularDistance Math.cos latA Math.sin angularDistance Math.cos trueCourse double dlon Math.atan2 Math.sin trueCourse Math.sin angularDistance Math.cos latA.. latA Math.cos angularDistance Math.cos latA Math.sin angularDistance Math.cos trueCourse double dlon Math.atan2 Math.sin trueCourse Math.sin angularDistance Math.cos latA Math.cos angularDistance Math.sin latA Math.sin lat double lon lonA..
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw value cleanValue value 180f 180f float Math.PI if value 0 return float cosVal float Math.cos value float sinVal float Math.sin value float lumR 0.213f float lumG 0.715f float lumB 0.072f float mat new float lumR cosVal 1 lumR sinVal lumR lumG cosVal..
How to calculate distance between two locations using their longitude and latitude value http://stackoverflow.com/questions/6981916/how-to-calculate-distance-between-two-locations-using-their-longitude-and-latitu double earthRadius 3958.75 double dLat Math.toRadians lat1 lat2 double dLng Math.toRadians lng1 lng2 double a Math.sin dLat 2 Math.sin dLat 2 Math.cos Math.toRadians lat2 Math.cos Math.toRadians lat1 Math.sin dLng 2 Math.sin dLng 2 double.. 3958.75 double dLat Math.toRadians lat1 lat2 double dLng Math.toRadians lng1 lng2 double a Math.sin dLat 2 Math.sin dLat 2 Math.cos Math.toRadians lat2 Math.cos Math.toRadians lat1 Math.sin dLng 2 Math.sin dLng 2 double c 2 Math.atan2.. lng1 lng2 double a Math.sin dLat 2 Math.sin dLat 2 Math.cos Math.toRadians lat2 Math.cos Math.toRadians lat1 Math.sin dLng 2 Math.sin dLng 2 double c 2 Math.atan2 Math.sqrt a Math.sqrt 1 a double dist earthRadius c android share improve..
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