Merge "Lower touch slop in ViewConfiguration." into ics-mr1 (720efc43) · Commits · e / os / android_frameworks_base

core/java/android/view/ViewConfiguration.java

+21 −4

Original line number	Diff line number	Diff line
		@@ -139,13 +139,29 @@ public class ViewConfiguration {
		private static final int EDGE_SLOP = 12;

		/**
		* Distance a touch can wander before we think the user is scrolling in pixels
		* Distance a touch can wander before we think the user is scrolling in dips.
		* Note that this value defined here is only used as a fallback by legacy/misbehaving
		* applications that do not provide a Context for determining density/configuration-dependent
		* values.
		*
		* To alter this value, see the configuration resource config_viewConfigurationTouchSlop
		* in frameworks/base/core/res/res/values/config.xml or the appropriate device resource overlay.
		* It may be appropriate to tweak this on a device-specific basis in an overlay based on
		* the characteristics of the touch panel and firmware.
		*/
		private static final int TOUCH_SLOP = 16;
		private static final int TOUCH_SLOP = 4;

		/**
		* Distance a touch can wander before we think the user is attempting a paged scroll
		* (in dips)
		*
		* Note that this value defined here is only used as a fallback by legacy/misbehaving
		* applications that do not provide a Context for determining density/configuration-dependent
		* values.
		*
		* See the note above on {@link #TOUCH_SLOP} regarding the dimen resource
		* config_viewConfigurationTouchSlop. ViewConfiguration will report a paging touch slop of
		* config_viewConfigurationTouchSlop * 2 when provided with a Context.
		*/
		private static final int PAGING_TOUCH_SLOP = TOUCH_SLOP * 2;

		@@ -277,8 +293,6 @@ public class ViewConfiguration {
		mMinimumFlingVelocity = (int) (density * MINIMUM_FLING_VELOCITY + 0.5f);
		mMaximumFlingVelocity = (int) (density * MAXIMUM_FLING_VELOCITY + 0.5f);
		mScrollbarSize = (int) (density * SCROLL_BAR_SIZE + 0.5f);
		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);
		@@ -301,6 +315,9 @@ public class ViewConfiguration {

		mFadingMarqueeEnabled = res.getBoolean(
		com.android.internal.R.bool.config_ui_enableFadingMarquee);
		mTouchSlop = res.getDimensionPixelSize(
		com.android.internal.R.dimen.config_viewConfigurationTouchSlop);
		mPagingTouchSlop = mTouchSlop * 2;
		}

		/**

core/res/res/values/config.xml

+4 −0

Original line number	Diff line number	Diff line
		@@ -741,4 +741,8 @@
		<string name="config_wimaxServiceClassname"></string>
		<!-- Name of the wimax state tracker clas -->
		<string name="config_wimaxStateTrackerClassname"></string>

		<!-- Base "touch slop" value used by ViewConfiguration as a
		movement threshold where scrolling should begin. -->
		<dimen name="config_viewConfigurationTouchSlop">4dp</dimen>
		</resources>