diff options
Diffstat (limited to 'core/java/android/view/ViewConfiguration.java')
| -rw-r--r-- | core/java/android/view/ViewConfiguration.java | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/core/java/android/view/ViewConfiguration.java b/core/java/android/view/ViewConfiguration.java index 739758c8c79f..94eb429dad64 100644 --- a/core/java/android/view/ViewConfiguration.java +++ b/core/java/android/view/ViewConfiguration.java @@ -19,7 +19,6 @@ package android.view; import android.app.AppGlobals; import android.content.Context; import android.content.res.Configuration; -import android.os.Bundle; import android.provider.Settings; import android.util.DisplayMetrics; import android.util.SparseArray; @@ -156,6 +155,13 @@ public class ViewConfiguration { private static final int MAXIMUM_FLING_VELOCITY = 8000; /** + * Distance between a touch up event denoting the end of a touch exploration + * gesture and the touch up event of a subsequent tap for the latter tap to be + * considered as a tap i.e. to perform a click. + */ + private static final int TOUCH_EXPLORATION_TAP_SLOP = 80; + + /** * The maximum size of View's drawing cache, expressed in bytes. This size * should be at least equal to the size of the screen in ARGB888 format. */ @@ -185,6 +191,7 @@ public class ViewConfiguration { private final int mTouchSlop; private final int mPagingTouchSlop; private final int mDoubleTapSlop; + private final int mScaledTouchExplorationTapSlop; private final int mWindowTouchSlop; private final int mMaximumDrawingCacheSize; private final int mOverscrollDistance; @@ -206,6 +213,7 @@ public class ViewConfiguration { mTouchSlop = TOUCH_SLOP; mPagingTouchSlop = PAGING_TOUCH_SLOP; mDoubleTapSlop = DOUBLE_TAP_SLOP; + mScaledTouchExplorationTapSlop = TOUCH_EXPLORATION_TAP_SLOP; mWindowTouchSlop = WINDOW_TOUCH_SLOP; //noinspection deprecation mMaximumDrawingCacheSize = MAXIMUM_DRAWING_CACHE_SIZE; @@ -242,6 +250,7 @@ public class ViewConfiguration { mTouchSlop = (int) (sizeAndDensity * TOUCH_SLOP + 0.5f); mPagingTouchSlop = (int) (sizeAndDensity * PAGING_TOUCH_SLOP + 0.5f); mDoubleTapSlop = (int) (sizeAndDensity * DOUBLE_TAP_SLOP + 0.5f); + mScaledTouchExplorationTapSlop = (int) (density * TOUCH_EXPLORATION_TAP_SLOP + 0.5f); mWindowTouchSlop = (int) (sizeAndDensity * WINDOW_TOUCH_SLOP + 0.5f); // Size of the screen in bytes, in ARGB_8888 format @@ -444,6 +453,17 @@ public class ViewConfiguration { } /** + * @return Distance between a touch up event denoting the end of a touch exploration + * gesture and the touch up event of a subsequent tap for the latter tap to be + * considered as a tap i.e. to perform a click. + * + * @hide + */ + public int getScaledTouchExplorationTapSlop() { + return mScaledTouchExplorationTapSlop; + } + + /** * @return Distance a touch must be outside the bounds of a window for it * to be counted as outside the window for purposes of dismissing that * window. |