一款实时监测汽车运行速度的app开发源码.zip

/* * Copyright (C) 2015 Baidu, Inc. All Rights Reserved. */ package com.baidu.mapapi.clusterutil.clustering.view; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.TimeInterpolator; import android.animation.ValueAnimator; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.content.Context; import android.graphics.Color; import android.graphics.drawable.Drawable; import android.graphics.drawable.LayerDrawable; import android.graphics.drawable.ShapeDrawable; import android.graphics.drawable.shapes.OvalShape; import android.os.Build; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.os.MessageQueue; import android.util.SparseArray; import android.view.ViewGroup; import android.view.animation.DecelerateInterpolator; import com.baidu.mapapi.clusterutil.MarkerManager; import com.baidu.mapapi.clusterutil.clustering.Cluster; import com.baidu.mapapi.clusterutil.clustering.ClusterItem; import com.baidu.mapapi.clusterutil.clustering.ClusterManager; import com.baidu.mapapi.clusterutil.projection.Point; import com.baidu.mapapi.clusterutil.projection.SphericalMercatorProjection; import com.baidu.mapapi.clusterutil.ui.IconGenerator; import com.baidu.mapapi.map.BaiduMap; import com.baidu.mapapi.map.BitmapDescriptor; import com.baidu.mapapi.map.BitmapDescriptorFactory; import com.baidu.mapapi.map.Marker; import com.baidu.mapapi.map.MarkerOptions; import com.baidu.mapapi.map.Projection; import com.baidu.mapapi.model.LatLng; import com.baidu.mapapi.model.LatLngBounds; import com.venjee.speed.R; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Queue; import java.util.Set; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; import static com.baidu.mapapi.clusterutil.clustering.algo.NonHierarchicalDistanceBasedAlgorithm.MAX_DISTANCE_AT_ZOOM; /** * The default view for a ClusterManager. Markers are animated in and out of clusters. */ public class DefaultClusterRenderer<T extends ClusterItem> implements com.baidu.mapapi.clusterutil.clustering.view.ClusterRenderer<T> { private static final boolean SHOULD_ANIMATE = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB; private final BaiduMap mMap; private final IconGenerator mIconGenerator; private final ClusterManager<T> mClusterManager; private final float mDensity; private static final int[] BUCKETS = {10, 20, 50, 100, 200, 500, 1000}; private ShapeDrawable mColoredCircleBackground; /** * Markers that are currently on the map. */ private Set<MarkerWithPosition> mMarkers = Collections.newSetFromMap( new ConcurrentHashMap<MarkerWithPosition, Boolean>()); /** * Icons for each bucket. */ private SparseArray<BitmapDescriptor> mIcons = new SparseArray<BitmapDescriptor>(); /** * Markers for single ClusterItems. */ private MarkerCache<T> mMarkerCache = new MarkerCache<T>(); /** * If cluster size is less than this size, display individual markers. */ private static final int MIN_CLUSTER_SIZE = 4; /** * The currently displayed set of clusters. */ private Set<? extends Cluster<T>> mClusters; /** * Lookup between markers and the associated cluster. */ private Map<Marker, Cluster<T>> mMarkerToCluster = new HashMap<Marker, Cluster<T>>(); private Map<Cluster<T>, Marker> mClusterToMarker = new HashMap<Cluster<T>, Marker>(); /** * The target zoom level for the current set of clusters. */ private float mZoom; private final ViewModifier mViewModifier = new ViewModifier(); private ClusterManager.OnClusterClickListener<T> mClickListener; private ClusterManager.OnClusterInfoWindowClickListener<T> mInfoWindowClickListener; private ClusterManager.OnClusterItemClickListener<T> mItemClickListener; private ClusterManager.OnClusterItemInfoWindowClickListener<T> mItemInfoWindowClickListener; public DefaultClusterRenderer(Context context, BaiduMap map, ClusterManager<T> clusterManager) { mMap = map; mDensity = context.getResources().getDisplayMetrics().density; mIconGenerator = new IconGenerator(context); mIconGenerator.setContentView(makeSquareTextView(context)); mIconGenerator.setTextAppearance(R.style.ClusterIcon_TextAppearance); mIconGenerator.setBackground(makeClusterBackground()); mClusterManager = clusterManager; } @Override public void onAdd() { mClusterManager.getMarkerCollection().setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() { @Override public boolean onMarkerClick(Marker marker) { return mItemClickListener != null && mItemClickListener.onClusterItemClick(mMarkerCache.get(marker)); } }); mClusterManager.getClusterMarkerCollection().setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() { @Override public boolean onMarkerClick(Marker marker) { return mClickListener != null && mClickListener.onClusterClick(mMarkerToCluster.get(marker)); } }); } @Override public void onRemove() { mClusterManager.getMarkerCollection().setOnMarkerClickListener(null); mClusterManager.getClusterMarkerCollection().setOnMarkerClickListener(null); } private LayerDrawable makeClusterBackground() { mColoredCircleBackground = new ShapeDrawable(new OvalShape()); ShapeDrawable outline = new ShapeDrawable(new OvalShape()); outline.getPaint().setColor(0x80ffffff); // Transparent white. LayerDrawable background = new LayerDrawable(new Drawable[] {outline, mColoredCircleBackground}); int strokeWidth = (int) (mDensity * 3); background.setLayerInset(1, strokeWidth, strokeWidth, strokeWidth, strokeWidth); return background; } private com.baidu.mapapi.clusterutil.ui.SquareTextView makeSquareTextView(Context context) { com.baidu.mapapi.clusterutil.ui.SquareTextView squareTextView = new com.baidu.mapapi.clusterutil.ui.SquareTextView(context); ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); squareTextView.setLayoutParams(layoutParams); squareTextView.setId(R.id.text); int twelveDpi = (int) (12 * mDensity); squareTextView.setPadding(twelveDpi, twelveDpi, twelveDpi, twelveDpi); return squareTextView; } private int getColor(int clusterSize) { final float hueRange = 220; final float sizeRange = 300; final float size = Math.min(clusterSize, sizeRange); final float hue = (sizeRange - size) * (sizeRange - size) / (sizeRange * sizeRange) * hueRange; return Color.HSVToColor(new float[] { hue, 1f, .6f }); } protected String getClusterText(int bucket) { if (bucket < BUCKETS[0]) { return String.valueOf(bucket); } return String.valueOf(bucket) + "+"; } /** * Gets the "bucket" for a particular cluster. By default, uses the number of points within the * cluster, bucketed to some set points. */ protected int getBucket(Cluster<T> cluster) { int size = cluster.getSize(); if (size <= BUCKETS[0]) { return size; } for (int i = 0; i < BUCKETS.length - 1; i++) { if (size < BUCKETS[i + 1]) { return BUCKETS[i]; } } return BUCKETS[BUCKETS.length - 1];