norohind/vanilla
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Scale fling animation time with display density

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This commit is contained in:
Christopher Eby 2011-12-19 01:48:56 -06:00
parent 61b1d9c5fa
commit b9d02e5b34
1 changed files with 9 additions and 2 deletions
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11
src/org/kreed/vanilla/CoverView.java
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@ -30,6 +30,7 @@ import android.os.Handler;
import android.os.Looper; import android.os.Looper;
import android.os.Message; import android.os.Message;
import android.util.AttributeSet; import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.MotionEvent; import android.view.MotionEvent;
import android.view.VelocityTracker; import android.view.VelocityTracker;
import android.view.View; import android.view.View;
@ -46,6 +47,10 @@ public final class CoverView extends View implements Handler.Callback {
* flings. * flings.
*/ */
private static int sSnapVelocity = -1; private static int sSnapVelocity = -1;
/**
* Display metrics, used for scaling.
*/
private static DisplayMetrics sDisplayMetrics;
/** /**
* The Handler with which to do background work. Will be null until * The Handler with which to do background work. Will be null until
* setupHandler is called. * setupHandler is called.
@ -152,8 +157,10 @@ public final class CoverView extends View implements Handler.Callback {
mScroller = new Scroller(context); mScroller = new Scroller(context);
if (sSnapVelocity == -1) if (sSnapVelocity == -1) {
sSnapVelocity = ViewConfiguration.get(context).getScaledMinimumFlingVelocity(); sSnapVelocity = ViewConfiguration.get(context).getScaledMinimumFlingVelocity();
sDisplayMetrics = context.getResources().getDisplayMetrics();
}
} }
/** /**
@ -306,7 +313,7 @@ public final class CoverView extends View implements Handler.Callback {
int newX = whichCover * width; int newX = whichCover * width;
int delta = newX - scrollX; int delta = newX - scrollX;
mScroller.startScroll(scrollX, 0, delta, 0, Math.abs(delta) * 2); mScroller.startScroll(scrollX, 0, delta, 0, (int)(Math.abs(delta) * 2 / sDisplayMetrics.density));
if (whichCover != 1) if (whichCover != 1)
mTentativeCover = whichCover; mTentativeCover = whichCover;