ViewConfiguration.java revision de8d0834fc2bc31f011fb3316757883e1b731440
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.view; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.DisplayMetrics; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.SparseArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Contains methods to standard constants used in the UI for timeouts, sizes, and distances. 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ViewConfiguration { 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the width of the horizontal scrollbar and the height of the vertical scrollbar in 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int SCROLL_BAR_SIZE = 10; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron * Duration of the fade when scrollbars fade away in milliseconds 35f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron */ 36f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron private static final int SCROLL_BAR_FADE_DURATION = 250; 37f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron 38f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron /** 39f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron * Default delay before the scrollbars fade in milliseconds 40f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron */ 41f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron private static final int SCROLL_BAR_DEFAULT_DELAY = 300; 42f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron 43f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron /** 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the length of the fading edges in pixels 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int FADING_EDGE_LENGTH = 12; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds of the pressed state in child 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * components. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52e14579bac59aa84523c2bfbfc3f28c7842ec664dAdam Powell private static final int PRESSED_STATE_DURATION = 125; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds before a press turns into 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a long press 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LONG_PRESS_TIMEOUT = 500; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds a user needs to hold down the 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * appropriate button to bring up the global actions dialog (power off, 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * lock screen, etc). 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int GLOBAL_ACTIONS_KEY_TIMEOUT = 500; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds we will wait to see if a touch event 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a tap or a scroll. If the user does not move within this interval, it is 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered to be a tap. 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 72e14579bac59aa84523c2bfbfc3f28c7842ec664dAdam Powell private static final int TAP_TIMEOUT = 115; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds we will wait to see if a touch event 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a jump tap. If the user does not complete the jump tap within this interval, it is 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered to be a tap. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int JUMP_TAP_TIMEOUT = 500; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds between the first tap's up event and 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the second tap's down event for an interaction to be considered a 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * double-tap. 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DOUBLE_TAP_TIMEOUT = 300; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the duration in milliseconds we want to display zoom controls in response 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to a user panning within an application. 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ZOOM_CONTROLS_TIMEOUT = 3000; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Inset in pixels to look for touchable content when the user touches the edge of the screen 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int EDGE_SLOP = 12; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Distance a touch can wander before we think the user is scrolling in pixels 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1023e2ac8843489e83c4171aabcfe98769b5159a5c8Dianne Hackborn private static final int TOUCH_SLOP = 16; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 105de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell * Distance a touch can wander before we think the user is attempting a paged scroll 106de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell * (in dips) 107de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell */ 108de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell private static final int PAGING_TOUCH_SLOP = TOUCH_SLOP * 3; 109de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell 110de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Distance between the first touch and second touch to still be considered a double tap 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DOUBLE_TAP_SLOP = 100; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Distance a touch needs to be outside of a window's bounds for it to 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count as outside for purposes of dismissing the window. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int WINDOW_TOUCH_SLOP = 16; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum velocity to initiate a fling, as measured in pixels per second 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MINIMUM_FLING_VELOCITY = 50; 1254296fc4d326447875c26a925f12b3935632f13bbRomain Guy 1264296fc4d326447875c26a925f12b3935632f13bbRomain Guy /** 1274296fc4d326447875c26a925f12b3935632f13bbRomain Guy * Maximum velocity to initiate a fling, as measured in pixels per second 1284296fc4d326447875c26a925f12b3935632f13bbRomain Guy */ 1294296fc4d326447875c26a925f12b3935632f13bbRomain Guy private static final int MAXIMUM_FLING_VELOCITY = 4000; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The maximum size of View's drawing cache, expressed in bytes. This size 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be at least equal to the size of the screen in ARGB888 format. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MAXIMUM_DRAWING_CACHE_SIZE = 320 * 480 * 4; // HVGA screen, ARGB8888 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The coefficient of friction applied to flings/scrolls. 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static float SCROLL_FRICTION = 0.015f; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mEdgeSlop; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mFadingEdgeLength; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mMinimumFlingVelocity; 1464296fc4d326447875c26a925f12b3935632f13bbRomain Guy private final int mMaximumFlingVelocity; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mScrollbarSize; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mTouchSlop; 149de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell private final int mPagingTouchSlop; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mDoubleTapSlop; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mWindowTouchSlop; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mMaximumDrawingCacheSize; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final SparseArray<ViewConfiguration> sConfigurations = 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new SparseArray<ViewConfiguration>(2); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link android.view.ViewConfiguration#get(android.content.Context)} instead. 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ViewConfiguration() { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeSlop = EDGE_SLOP; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFadingEdgeLength = FADING_EDGE_LENGTH; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMinimumFlingVelocity = MINIMUM_FLING_VELOCITY; 1654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumFlingVelocity = MAXIMUM_FLING_VELOCITY; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollbarSize = SCROLL_BAR_SIZE; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchSlop = TOUCH_SLOP; 168de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell mPagingTouchSlop = PAGING_TOUCH_SLOP; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDoubleTapSlop = DOUBLE_TAP_SLOP; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWindowTouchSlop = WINDOW_TOUCH_SLOP; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection deprecation 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMaximumDrawingCacheSize = MAXIMUM_DRAWING_CACHE_SIZE; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a new configuration for the specified context. The configuration depends on 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * various parameters of the context, like the dimension of the display or the density 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the display. 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param context The application context used to initialize this view configuration. 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #get(android.content.Context) 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.util.DisplayMetrics 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ViewConfiguration(Context context) { 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final DisplayMetrics metrics = context.getResources().getDisplayMetrics(); 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float density = metrics.density; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeSlop = (int) (density * EDGE_SLOP + 0.5f); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFadingEdgeLength = (int) (density * FADING_EDGE_LENGTH + 0.5f); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMinimumFlingVelocity = (int) (density * MINIMUM_FLING_VELOCITY + 0.5f); 1924296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumFlingVelocity = (int) (density * MAXIMUM_FLING_VELOCITY + 0.5f); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollbarSize = (int) (density * SCROLL_BAR_SIZE + 0.5f); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchSlop = (int) (density * TOUCH_SLOP + 0.5f); 195de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell mPagingTouchSlop = (int) (density * PAGING_TOUCH_SLOP + 0.5f); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDoubleTapSlop = (int) (density * DOUBLE_TAP_SLOP + 0.5f); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWindowTouchSlop = (int) (density * WINDOW_TOUCH_SLOP + 0.5f); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Size of the screen in bytes, in ARGB_8888 format 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMaximumDrawingCacheSize = 4 * metrics.widthPixels * metrics.heightPixels; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a configuration for the specified context. The configuration depends on 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * various parameters of the context, like the dimension of the display or the 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * density of the display. 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param context The application context used to initialize the view configuration. 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static ViewConfiguration get(Context context) { 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final DisplayMetrics metrics = context.getResources().getDisplayMetrics(); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int density = (int) (100.0f * metrics.density); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewConfiguration configuration = sConfigurations.get(density); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (configuration == null) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project configuration = new ViewConfiguration(context); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sConfigurations.put(density, configuration); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return configuration; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The width of the horizontal scrollbar and the height of the vertical 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scrollbar in pixels 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledScrollBarSize()} instead. 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getScrollBarSize() { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return SCROLL_BAR_SIZE; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The width of the horizontal scrollbar and the height of the vertical 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scrollbar in pixels 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledScrollBarSize() { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollbarSize; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 243f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron * @return Duration of the fade when scrollbars fade away in milliseconds 244f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron */ 245f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron public static int getScrollBarFadeDuration() { 246f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron return SCROLL_BAR_FADE_DURATION; 247f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron } 248f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron 249f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron /** 250f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron * @return Default delay before the scrollbars fade in milliseconds 251f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron */ 252f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron public static int getScrollDefaultDelay() { 253f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron return SCROLL_BAR_DEFAULT_DELAY; 254f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron } 255f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron 256f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron /** 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the length of the fading edges in pixels 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledFadingEdgeLength()} instead. 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getFadingEdgeLength() { 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return FADING_EDGE_LENGTH; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the length of the fading edges in pixels 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledFadingEdgeLength() { 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFadingEdgeLength; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the duration in milliseconds of the pressed state in child 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * components. 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getPressedStateDuration() { 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return PRESSED_STATE_DURATION; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the duration in milliseconds before a press turns into 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a long press 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getLongPressTimeout() { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return LONG_PRESS_TIMEOUT; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the duration in milliseconds we will wait to see if a touch event 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a tap or a scroll. If the user does not move within this interval, it is 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered to be a tap. 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getTapTimeout() { 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return TAP_TIMEOUT; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the duration in milliseconds we will wait to see if a touch event 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a jump tap. If the user does not move within this interval, it is 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered to be a tap. 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getJumpTapTimeout() { 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return JUMP_TAP_TIMEOUT; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the duration in milliseconds between the first tap's up event and 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the second tap's down event for an interaction to be considered a 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * double-tap. 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getDoubleTapTimeout() { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DOUBLE_TAP_TIMEOUT; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Inset in pixels to look for touchable content when the user touches the edge of the 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * screen 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledEdgeSlop()} instead. 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getEdgeSlop() { 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return EDGE_SLOP; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Inset in pixels to look for touchable content when the user touches the edge of the 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * screen 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledEdgeSlop() { 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEdgeSlop; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance a touch can wander before we think the user is scrolling in pixels 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledTouchSlop()} instead. 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getTouchSlop() { 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return TOUCH_SLOP; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance a touch can wander before we think the user is scrolling in pixels 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledTouchSlop() { 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTouchSlop; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 351de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell 352de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell /** 353de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell * @return Distance a touch can wander before we think the user is scrolling a full page 354de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell * in dips 355de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell */ 356de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell public int getScaledPagingTouchSlop() { 357de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell return mPagingTouchSlop; 358de8d0834fc2bc31f011fb3316757883e1b731440Adam Powell } 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance between the first touch and second touch to still be 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered a double tap 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledDoubleTapSlop()} instead. 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide The only client of this should be GestureDetector, which needs this 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for clients that still use its deprecated constructor. 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getDoubleTapSlop() { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DOUBLE_TAP_SLOP; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance between the first touch and second touch to still be 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * considered a double tap 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledDoubleTapSlop() { 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDoubleTapSlop; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance a touch must be outside the bounds of a window for it 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to be counted as outside the window for purposes of dismissing that 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * window. 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledWindowTouchSlop()} instead. 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getWindowTouchSlop() { 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return WINDOW_TOUCH_SLOP; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Distance a touch must be outside the bounds of a window for it 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to be counted as outside the window for purposes of dismissing that 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * window. 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledWindowTouchSlop() { 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWindowTouchSlop; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Minimum velocity to initiate a fling, as measured in pixels per second. 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledMinimumFlingVelocity()} instead. 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getMinimumFlingVelocity() { 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MINIMUM_FLING_VELOCITY; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Minimum velocity to initiate a fling, as measured in pixels per second. 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledMinimumFlingVelocity() { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mMinimumFlingVelocity; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4194296fc4d326447875c26a925f12b3935632f13bbRomain Guy * @return Maximum velocity to initiate a fling, as measured in pixels per second. 4204296fc4d326447875c26a925f12b3935632f13bbRomain Guy * 4214296fc4d326447875c26a925f12b3935632f13bbRomain Guy * @deprecated Use {@link #getScaledMaximumFlingVelocity()} instead. 4224296fc4d326447875c26a925f12b3935632f13bbRomain Guy */ 4234296fc4d326447875c26a925f12b3935632f13bbRomain Guy @Deprecated 4244296fc4d326447875c26a925f12b3935632f13bbRomain Guy public static int getMaximumFlingVelocity() { 4254296fc4d326447875c26a925f12b3935632f13bbRomain Guy return MAXIMUM_FLING_VELOCITY; 4264296fc4d326447875c26a925f12b3935632f13bbRomain Guy } 4274296fc4d326447875c26a925f12b3935632f13bbRomain Guy 4284296fc4d326447875c26a925f12b3935632f13bbRomain Guy /** 4294296fc4d326447875c26a925f12b3935632f13bbRomain Guy * @return Maximum velocity to initiate a fling, as measured in pixels per second. 4304296fc4d326447875c26a925f12b3935632f13bbRomain Guy */ 4314296fc4d326447875c26a925f12b3935632f13bbRomain Guy public int getScaledMaximumFlingVelocity() { 4324296fc4d326447875c26a925f12b3935632f13bbRomain Guy return mMaximumFlingVelocity; 4334296fc4d326447875c26a925f12b3935632f13bbRomain Guy } 4344296fc4d326447875c26a925f12b3935632f13bbRomain Guy 4354296fc4d326447875c26a925f12b3935632f13bbRomain Guy /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The maximum drawing cache size expressed in bytes. 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the maximum size of View's drawing cache expressed in bytes 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Use {@link #getScaledMaximumDrawingCacheSize()} instead. 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Deprecated 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int getMaximumDrawingCacheSize() { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection deprecation 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MAXIMUM_DRAWING_CACHE_SIZE; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The maximum drawing cache size expressed in bytes. 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the maximum size of View's drawing cache expressed in bytes 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getScaledMaximumDrawingCacheSize() { 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mMaximumDrawingCacheSize; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The amount of time that the zoom controls should be 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * displayed on the screen expressed in milliseconds. 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the time the zoom controls should be visible expressed 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in milliseconds. 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static long getZoomControlsTimeout() { 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ZOOM_CONTROLS_TIMEOUT; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The amount of time a user needs to press the relevant key to bring up 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the global actions dialog. 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return how long a user needs to press the relevant key to bring up 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the global actions dialog. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static long getGlobalActionKeyTimeout() { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return GLOBAL_ACTIONS_KEY_TIMEOUT; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The amount of friction applied to scrolls and flings. 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A scalar dimensionless value representing the coefficient of 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * friction. 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static float getScrollFriction() { 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return SCROLL_FRICTION; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 489