2014/10/16 上午 08:21:30

android Programming Glossary: pointf

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

mid point of the first two fingers private void midPoint PointF point MotionEvent event float x event.getX 0 event.getX 1 float.. int ZOOM 2 int mode NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f String.. NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f String savedItemClicked..

Android - SQlite Getting nearest locations (with latitude and longitude)

http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude

source given the desired range and bearing. public static PointF calculateDerivedPosition PointF point double range double bearing.. and bearing. public static PointF calculateDerivedPosition PointF point double range double bearing double EarthRadius 6371000.. 2 Math.PI lat Math.toDegrees lat lon Math.toDegrees lon PointF newPoint new PointF float lat float lon return newPoint And..

Rotate zoom drag image in android imageview

http://stackoverflow.com/questions/5894736/rotate-zoom-drag-image-in-android-imageview

import android.graphics.Matrix import android.graphics.PointF import android.os.Bundle import android.util.FloatMath import.. int ZOOM 2 int mode NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f @Override.. NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f @Override public void..

Android Image View Pinch Zooming

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

0 event.getY 1 return FloatMath.sqrt x x y y Calculate the mid point of the first two fingers private void midPoint PointF point MotionEvent event float x event.getX 0 event.getX 1 float y event.getY 0 event.getY 1 point.set x 2 y 2 and dont forget..

Android - SQlite Getting nearest locations (with latitude and longitude)

http://stackoverflow.com/questions/3695224/android-sqlite-getting-nearest-locations-with-latitude-and-longitude

@param bearing Bearing in degrees @return End point from the source given the desired range and bearing. public static PointF calculateDerivedPosition PointF point double range double bearing double EarthRadius 6371000 m double latA Math.toRadians.. @return End point from the source given the desired range and bearing. public static PointF calculateDerivedPosition PointF point double range double bearing double EarthRadius 6371000 m double latA Math.toRadians point.x double lonA Math.toRadians.. latA Math.sin lat double lon lonA dlon Math.PI Math.PI 2 Math.PI lat Math.toDegrees lat lon Math.toDegrees lon PointF newPoint new PointF float lat float lon return newPoint And now create your query PointF center new PointF x y final double..

Rotate zoom drag image in android imageview

http://stackoverflow.com/questions/5894736/rotate-zoom-drag-image-in-android-imageview

android.graphics.Bitmap import android.graphics.BitmapFactory import android.graphics.Matrix import android.graphics.PointF import android.os.Bundle import android.util.FloatMath import android.util.Log import android.view.MotionEvent import android.view.View.. static final int NONE 0 static final int DRAG 1 static final int ZOOM 2 int mode NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f @Override public void onCreate Bundle savedInstanceState super.onCreate.. NONE 0 static final int DRAG 1 static final int ZOOM 2 int mode NONE Remember some things for zooming PointF start new PointF PointF mid new PointF float oldDist 1f @Override public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState..