我想在Google Map上实现标记聚类。它也应该涉及自定义渲染。所以我使用了来自https://github.com/googlemaps/android-maps-utils的示例代码,
参考演示中的CustomMarkerClusteringDemoActivity.java。
我的问题是,当我点击群集时,它不会调用onClusterClick()。同样,点击群集项时,onClusterItemClick()也不会被调用。
我无法理解我哪里出错了,请帮帮....
我正在使用:
第1步:
private ClusterManager<MarkerCluster> mClusterManager;
第2步:
private class MarkerRenderer extends DefaultClusterRenderer<MarkerCluster> {
private final IconGenerator mIconGenerator =
new IconGenerator(context.getApplicationContext());
private final IconGenerator mClusterIconGenerator =
new IconGenerator(context.getApplicationContext());
private final ImageView mImageView = null;
private final TextView mClusterTextCounter;
private final ImageView mClusterImageView;
private final int mDimension = 0;
public MarkerRenderer() {
super(context.getApplicationContext(), mMap, mClusterManager);
View multiProfile = getActivity().getLayoutInflater()
.inflate(R.layout.layout_marker_render, null);
mClusterIconGenerator.setContentView(multiProfile);
mClusterImageView = (ImageView)multiProfile
.findViewById(R.id.lyt_marker_render_img_pin);
mClusterTextCounter = (TextView) multiProfile
.findViewById(R.id.lyt_marker_render_txt_counter);
}
@Override
protected void onBeforeClusterItemRendered(MarkerCluster markercluster, MarkerOptions markerOptions) {
// Draw a single person.
// Set the info window to show their name.
Item mItem = markercluster.getItem();
if(mItem != null){
if(mItem.get_UserType().equalsIgnoreCase("2")){
markerOptions
.title(mItem.get_maker() + " - " + mItem.get_carModel())
.icon(icon_blue);
}else{
markerOptions
.title(mItem.get_maker() + " - " + mItem.get_carModel())
.icon(icon_gray);
}
}
}
@Override
protected void onBeforeClusterRendered(Cluster<MarkerCluster> cluster, MarkerOptions markerOptions) {
// Draw multiple people.
// Note: this method runs on the UI thread. Don't spend too much time in here (like in this example).
mClusterTextCounter.setText(cluster.getItems().size() + "");
Drawable myDrawable;
if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP){
myDrawable = context.getResources()
.getDrawable(R.drawable.pin_blue, context.getTheme());
} else {
myDrawable = context.getResources()
.getDrawable(R.drawable.pin_blue);
}
mClusterImageView.setImageDrawable(myDrawable);
mClusterIconGenerator.setBackground(
context.getResources().getDrawable(R.drawable.map_btn)
);
Bitmap icon = mClusterIconGenerator.makeIcon(
String.valueOf(cluster.getSize())
);
markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
}
@Override
protected boolean shouldRenderAsCluster(Cluster cluster) {
// Always render clusters.
return cluster.getSize() > 1;
}
}
第3步:
mClusterManager = new ClusterManager<MarkerCluster>(context, mMap);
mClusterManager.setRenderer(new MarkerRenderer());
mMap.setOnMarkerClickListener(mClusterManager);
mMap.setOnInfoWindowClickListener(mClusterManager);
mMap.setOnCameraChangeListener(new GoogleMap.OnCameraChangeListener() {
@Override
public void onCameraChange(CameraPosition cameraPosition) {
if (mClusterManager != null) {
mClusterManager.onCameraChange(cameraPosition);
}
// Some Other Tasks here
}
});
mClusterManager.setOnClusterClickListener(
new ClusterManager.OnClusterClickListener<MarkerCluster>() {
@Override
public boolean onClusterClick(Cluster<MarkerCluster> cluster) {
LatLngBounds.Builder builder = LatLngBounds.builder();
for (MarkerCluster item : cluster.getItems()) {
builder.include(item.getPosition());
}
final LatLngBounds bounds = builder.build();
mMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 100));
return true;
}
});
mClusterManager.setOnClusterItemClickListener(
new ClusterManager.OnClusterItemClickListener<MarkerCluster>() {
@Override
public boolean onClusterItemClick(MarkerCluster markerCluster) {
Item item = markerCluster.getItem();
if (mItem != null) {
MarkerClickDialog mMarkerClickDialog = new MarkerClickDialog(context, mItem);
mMarkerClickDialog.show();
}
return false;
}
});
for (int i = 0; i < mItemList.size(); i++) {
Item mItem = mItemList.get(i);
if (mMap != null) {
displayLocation(
Double.parseDouble(mItem.get_Latitude()),
Double.parseDouble(mItem.get_Longitude()),
mItem
);
}
}
private void displayLocation(double latitude, double longitude, Item mItem){
// create marker
if(mMap != null){
Marker mMarker = null;
MarkerCluster offsetItem = new MarkerCluster(new LatLng(latitude, longitude), "Test", R.drawable.pin_blue, mItem);
mClusterManager.addItem(offsetItem);
mClusterManager.cluster();
}
}
答案 0 :(得分:0)
在Cells(B5) = 3
cells(B6) = 0
Cells(B20) = 0
cells(B21) = 90
构造函数中,有MarkerRenderer
您仍然需要GoogleMap对象和ClusterManager。你应该将参数传递给构造函数!写得像这样:
super(context.getApplicationContext(), mMap, mClusterManager);
当你设置渲染器时,像这样写
public CustomRenderer(Context context, GoogleMap map, ClusterManager clusterManager) {
super(context, map, clusterManager);
...