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fling velocity is in pixel-per-second, so make it dpi-dependent

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This commit is contained in:
Hannes Janetzek 2013-01-24 22:13:00 +01:00
parent 42964861b8
commit de88c33701
1 changed files with 15 additions and 4 deletions
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19
src/org/oscim/view/TouchHandler.java
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@ -22,6 +22,7 @@ import org.oscim.overlay.OverlayManager;
import android.content.Context;
import android.os.CountDownTimer;
import android.os.SystemClock;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.OnDoubleTapListener;
@ -70,6 +71,8 @@ final class TouchHandler implements OnGestureListener, OnScaleGestureListener, O
private final ScaleGestureDetector mScaleGestureDetector;
private final GestureDetector mGestureDetector;
private final float dpi;
/**
* @param context
* the Context
@ -87,10 +90,15 @@ final class TouchHandler implements OnGestureListener, OnScaleGestureListener, O
mGestureDetector = new GestureDetector(context, this);
mGestureDetector.setOnDoubleTapListener(this);
mInterpolator = new DecelerateInterpolator(1.5f);
mInterpolator = new DecelerateInterpolator(2f);
mScroller = new Scroller(mMapView.getContext(), mInterpolator);
mLinearInterpolator = new DecelerateInterpolator(0.8f);//new android.view.animation.LinearInterpolator();
DisplayMetrics metrics = mapView.getResources().getDisplayMetrics();
dpi = metrics.xdpi;
Log.d(TAG, "dpi is: " + dpi);
}
/**
@ -363,8 +371,8 @@ final class TouchHandler implements OnGestureListener, OnScaleGestureListener, O
if (mScaling || mWasMulti)
return true;
int w = Tile.TILE_SIZE * 20;
int h = Tile.TILE_SIZE * 20;
int w = Tile.TILE_SIZE * 6;
int h = Tile.TILE_SIZE * 6;
mScrollX = 0;
mScrollY = 0;
@ -374,6 +382,7 @@ final class TouchHandler implements OnGestureListener, OnScaleGestureListener, O
}
if (mMapView.enablePagedFling) {
double a = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
float vx = (float) (velocityX / a);
@ -387,7 +396,9 @@ final class TouchHandler implements OnGestureListener, OnScaleGestureListener, O
float move = Math.min(mMapView.getWidth(), mMapView.getHeight()) * 2 / 3;
mMapPosition.animateTo(vx * move, vy * move, 250);
} else {
mScroller.fling(0, 0, Math.round(velocityX) / 2, Math.round(velocityY) / 2,
float s = (300 / dpi) / 2;
mScroller.fling(0, 0, Math.round(velocityX * s),
Math.round(velocityY * s),
-w, w, -h, h);
mTimer = new CountDownTimer(1000, 16) {