应用源码之swipeListView优化案例.zip

/* * Copyright (C) 2013 47 Degrees, LLC * http://47deg.com * [email protected] * * Copyright 2012 Roman Nurik * * 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 com.fortysevendeg.android.swipelistview.listview; import static com.nineoldandroids.view.ViewHelper.setAlpha; import static com.nineoldandroids.view.ViewHelper.setTranslationX; import static com.nineoldandroids.view.ViewPropertyAnimator.animate; import java.util.ArrayList; import java.util.Collections; import java.util.List; import android.graphics.Rect; import android.os.Build; import android.os.Handler; import android.support.v4.view.MotionEventCompat; import android.util.Log; import android.view.MotionEvent; import android.view.VelocityTracker; import android.view.View; import android.view.ViewConfiguration; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.ListView; import com.nineoldandroids.animation.Animator; import com.nineoldandroids.animation.AnimatorListenerAdapter; import com.nineoldandroids.animation.ValueAnimator; import com.nineoldandroids.view.ViewHelper; /** * Touch listener impl for the SwipeListView */ public class SwipeListViewTouchListener implements View.OnTouchListener { private static final int DISPLACE_CHOICE = 80; private int swipeMode = SwipeListView.SWIPE_MODE_BOTH; private boolean swipeOpenOnLongPress = true; private boolean swipeClosesAllItemsWhenListMoves = true; private int swipeFrontView = 0; private int swipeBackView = 0; private Rect rect = new Rect(); // Cached ViewConfiguration and system-wide constant values private int slop; private int minFlingVelocity; private int maxFlingVelocity; private long configShortAnimationTime; private long animationTime; private float leftOffset = 0; private float rightOffset = 0; private int swipeDrawableChecked = 0; private int swipeDrawableUnchecked = 0; // Fixed properties private SwipeListView swipeListView; private int viewWidth = 1; // 1 and not 0 to prevent dividing by zero private List<PendingDismissData> pendingDismisses = new ArrayList<PendingDismissData>(); private int dismissAnimationRefCount = 0; private float downX; private boolean swiping; private boolean swipingRight; private VelocityTracker velocityTracker; private int downPosition; private View parentView; private View frontView; private View backView; private boolean paused; private int swipeCurrentAction = SwipeListView.SWIPE_ACTION_NONE; private int swipeActionLeft = SwipeListView.SWIPE_ACTION_REVEAL; private int swipeActionRight = SwipeListView.SWIPE_ACTION_REVEAL; private List<Boolean> opened = new ArrayList<Boolean>(); private List<Boolean> openedRight = new ArrayList<Boolean>(); private boolean listViewMoving; private List<Boolean> checked = new ArrayList<Boolean>(); private int oldSwipeActionRight; private int oldSwipeActionLeft; /** * Constructor * * @param swipeListView SwipeListView * @param swipeFrontView front view Identifier * @param swipeBackView back view Identifier */ public SwipeListViewTouchListener(SwipeListView swipeListView, int swipeFrontView, int swipeBackView) { this.swipeFrontView = swipeFrontView; this.swipeBackView = swipeBackView; ViewConfiguration vc = ViewConfiguration.get(swipeListView.getContext()); slop = vc.getScaledTouchSlop(); minFlingVelocity = vc.getScaledMinimumFlingVelocity(); maxFlingVelocity = vc.getScaledMaximumFlingVelocity(); configShortAnimationTime = swipeListView.getContext().getResources().getInteger(android.R.integer.config_shortAnimTime); animationTime = configShortAnimationTime; this.swipeListView = swipeListView; } /** * Sets current item's parent view * * @param parentView Parent view */ private void setParentView(View parentView) { this.parentView = parentView; } /** * Sets current item's front view * * @param frontView Front view */ private void setFrontView(View frontView) { this.frontView = frontView; frontView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { swipeListView.onClickFrontView(downPosition); } }); if (swipeOpenOnLongPress) { frontView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { openAnimate(downPosition); return false; } }); } } /** * Set current item's back view * * @param backView */ private void setBackView(View backView) { this.backView = backView; backView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { swipeListView.onClickBackView(downPosition); } }); } /** * @return true if the list is in motion */ public boolean isListViewMoving() { return listViewMoving; } /** * Sets animation time when the user drops the cell * * @param animationTime milliseconds */ public void setAnimationTime(long animationTime) { if (animationTime > 0) { this.animationTime = animationTime; } else { this.animationTime = configShortAnimationTime; } } /** * Sets the right offset * * @param rightOffset Offset */ public void setRightOffset(float rightOffset) { this.rightOffset = rightOffset; } /** * Set the left offset * * @param leftOffset Offset */ public void setLeftOffset(float leftOffset) { this.leftOffset = leftOffset; } /** * Set if all item opened will be close when the user move ListView * * @param swipeClosesAllItemsWhenListMoves */ public void setSwipeClosesAllItemsWhenListMoves(boolean swipeClosesAllItemsWhenListMoves) { this.swipeClosesAllItemsWhenListMoves = swipeClosesAllItemsWhenListMoves; } /** * Set if the user can open an item with long press on cell * * @param swipeOpenOnLongPress */ public void setSwipeOpenOnLongPress(boolean swipeOpenOnLongPress) { this.swipeOpenOnLongPress = swipeOpenOnLongPress; } /** * Sets the swipe mode * * @param swipeMode */ public void setSwipeMode(int swipeMode) { this.swipeMode = swipeMode; } /** * Check is swiping is enabled * * @return */ protected boolean isSwipeEnabled() { return swipeMode != SwipeListView.SWIPE_MODE_NONE; } /** * Return action on left * * @return Action */ public int getSwipeActionLeft() { return swipeActionLeft; } /** * Set action on left * * @param swipeActionLeft Action */ public void setSwipeActionLeft(int swipeActionLeft) { this.swipeActionLeft = swipeActionLeft; } /** * Return action on right * * @return Action */ public int getSwipeActionRight() { return swipeActionRight; } /** * Set action on rig