ViewPager精简源码

/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package szzt.zj.ad.sdk.pager.view.accessibility; import android.graphics.Rect; import android.os.Build; import android.os.Bundle; import android.text.InputType; import android.view.View; import szzt.zj.ad.sdk.pager.accessibilityservice.AccessibilityServiceInfoCompat; import szzt.zj.ad.sdk.pager.view.ViewCompat; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * Helper for accessing {@link android.view.accessibility.AccessibilityNodeInfo} * introduced after API level 4 in a backwards compatible fashion. */ public class AccessibilityNodeInfoCompat { public static class AccessibilityActionCompat { /** * Action that gives input focus to the node. */ public static final AccessibilityActionCompat ACTION_FOCUS = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_FOCUS, null); /** * Action that clears input focus of the node. */ public static final AccessibilityActionCompat ACTION_CLEAR_FOCUS = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_CLEAR_FOCUS, null); /** * Action that selects the node. */ public static final AccessibilityActionCompat ACTION_SELECT = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_SELECT, null); /** * Action that deselects the node. */ public static final AccessibilityActionCompat ACTION_CLEAR_SELECTION = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_CLEAR_SELECTION, null); /** * Action that clicks on the node info. */ public static final AccessibilityActionCompat ACTION_CLICK = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_CLICK, null); /** * Action that long clicks on the node. */ public static final AccessibilityActionCompat ACTION_LONG_CLICK = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_LONG_CLICK, null); /** * Action that gives accessibility focus to the node. */ public static final AccessibilityActionCompat ACTION_ACCESSIBILITY_FOCUS = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS, null); /** * Action that clears accessibility focus of the node. */ public static final AccessibilityActionCompat ACTION_CLEAR_ACCESSIBILITY_FOCUS = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); /** * Action that requests to go to the next entity in this node's text * at a given movement granularity. For example, move to the next character, * word, etc. * <p> * <strong>Arguments:</strong> * {@link AccessibilityNodeInfoCompat#ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT}, * {@link AccessibilityNodeInfoCompat#ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN}<br> * <strong>Example:</strong> Move to the previous character and do not extend selection. * <code><pre><p> * Bundle arguments = new Bundle(); * arguments.putInt(AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT, * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_CHARACTER); * arguments.putBoolean( * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN, false); * info.performAction( * AccessibilityActionCompat.ACTION_NEXT_AT_MOVEMENT_GRANULARITY.getId(), * arguments); * </code></pre></p> * </p> * * @see AccessibilityNodeInfoCompat#ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * @see AccessibilityNodeInfoCompat#ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * * @see AccessibilityNodeInfoCompat#setMovementGranularities(int) * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * @see AccessibilityNodeInfoCompat#getMovementGranularities() * AccessibilityNodeInfoCompat.getMovementGranularities() * * @see AccessibilityNodeInfoCompat#MOVEMENT_GRANULARITY_CHARACTER * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_CHARACTER * @see AccessibilityNodeInfoCompat#MOVEMENT_GRANULARITY_WORD * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_WORD * @see AccessibilityNodeInfoCompat#MOVEMENT_GRANULARITY_LINE * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_LINE * @see AccessibilityNodeInfoCompat#MOVEMENT_GRANULARITY_PARAGRAPH * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_PARAGRAPH * @see AccessibilityNodeInfoCompat#MOVEMENT_GRANULARITY_PAGE * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_PAGE */ public static final AccessibilityActionCompat ACTION_NEXT_AT_MOVEMENT_GRANULARITY = new AccessibilityActionCompat( AccessibilityNodeInfoCompat.ACTION_NEXT_AT_MOVEMENT_GRANULARITY, null); /** * Action that requests to go to the previous entity in this node's text * at a given movement granularity. For example, move to the next character, * word, etc. * <p> * <strong>Arguments:</strong> * {@link AccessibilityNodeInfoCompat#ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT}, * {@link AccessibilityNodeInfoCompat#ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN}<br> * <strong>Example:</strong> Move to the next character and do not extend selection. * <code><pre><p> * Bundle arguments = new Bundle(); * arguments.putInt(AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT, * AccessibilityNodeInfoCompat.MOVEMENT_GRANULARITY_CHARACTER); * arguments.putBoolean( * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN, false); * info.performAction( * AccessibilityActionCompat.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY.getId(), * arguments); * </code></pre></p> * </p> * * @see AccessibilityNodeInfoCompat#ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT * @see AccessibilityNodeInfoCompat#ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN * AccessibilityNodeInfoCompat.ACTION_ARGUMENT_