Question

我想在android中更改下面的群集图标。在一个圆圈中将有一个图像视图和一个文本视图。

我的自定义图标代码

  private class ItemRenderer extends DefaultClusterRenderer<ClusterPopupList> {
    private final IconGenerator mIconGenerator = new IconGenerator(getApplicationContext());
    private final IconGenerator mClusterIconGenerator = new IconGenerator(getApplicationContext());
    private final int mDimension;

    public ItemRenderer() {
        super(getApplicationContext(), map, mClusterManager);

        View multiProfile = getLayoutInflater().inflate(R.layout.multi_profile,null);
        mClusterIconGenerator.setContentView(multiProfile);
        mImageView = new ImageView(getApplicationContext());
        mDimension = (int) getResources().getDimension(R.dimen.custom_profile_image);
        mImageView.setLayoutParams(new ViewGroup.LayoutParams(mDimension, mDimension));
        mIconGenerator.setContentView(mImageView);
    }

    @Override
    protected void onBeforeClusterItemRendered(ClusterPopupList item, MarkerOptions markerOptions) {
        mImageView.setImageResource(item.profilePhoto);
        Bitmap icon = mIconGenerator.makeIcon();
        markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
        super.onBeforeClusterItemRendered(item, markerOptions);

    }

    @Override
    protected void onBeforeClusterRendered(Cluster<ClusterPopupList> cluster, MarkerOptions markerOptions) {
        List<Drawable> profilePhotos = new ArrayList<Drawable>(Math.min(4, cluster.getSize()));
        int width = mDimension;
        int height = mDimension;

        for (ClusterPopupList p : cluster.getItems()) {
            // Draw 4 at most.
            if (profilePhotos.size() == 4) break;
            Drawable drawable = getResources().getDrawable(p.profilePhoto);
            drawable.setBounds(0, 0, width, height);
            profilePhotos.add(drawable);
        }

        Bitmap icon = mClusterIconGenerator.makeIcon(String.valueOf(cluster.getSize()));
        markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
    }

    @Override
    protected void onClusterRendered(Cluster<ClusterPopupList> cluster, Marker marker) {
        super.onClusterRendered(cluster, marker);
    }

    @Override
    public ClusterPopupList getClusterItem(Marker marker) {

        return super.getClusterItem(marker);
    }

    @Override
    protected boolean shouldRenderAsCluster(Cluster<ClusterPopupList> cluster) {
        return cluster.getSize() > 1;
    }
}

multi_profile.xml

    <?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<de.hdodenhof.circleimageview.CircleImageView
    android:id="@+id/image"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:background="@android:color/transparent"
    android:src="@drawable/icon_cluster_count"/>

<TextView
    android:id="@id/text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="@style/Bubble.TextAppearance.Light"
    android:paddingLeft="@dimen/custom_profile_padding"
    android:paddingRight="@dimen/custom_profile_padding"
    android:layout_below="@id/image"
    android:text="150"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="8dip"
    android:textColor="@color/theme_color"
    android:alpha=".8"/>
   </RelativeLayout>

输出：

我希望像圆圈中的第一张图片一样实现群集图标。我在相对布局中使用了圆形背景，但这不起作用。

Answer 1

来自the Google Maps documentation site:

自定义标记簇

ClusterManager构造函数会创建DefaultClusterRenderer和NonHierarchicalDistanceBasedAlgorithm。您可以使用ClusterRenderer和setAlgorithm(Algorithm<T> algorithm)更改setRenderer(ClusterRenderer<T> view) methods of ClusterManager和算法。

您可以实施ClusterRenderer来自定义群集的呈现。 DefaultClusterRenderer提供了一个良好的基础。通过继承DefaultClusterRenderer，您可以覆盖默认值。

Answer 2

from mpl_toolkits.mplot3d import Axes3D
from matplotlib.collections import PolyCollection
import matplotlib.pyplot as plt
from matplotlib import colors as mcolors
import numpy as np

fig = plt.figure(num=99,figsize=(3.25,2.25), dpi=300)


ax = fig.gca(projection='3d')


def cc(arg):
    return mcolors.to_rgba(arg, alpha=0.6)

xs = np.arange(0, 10, 0.4)
verts = []
zs = [0.0, 1.0, 2.0, 3.0]
for z in zs:
    ys = np.random.rand(len(xs))
    ys[0], ys[-1] = 0, 0
    verts.append(list(zip(xs, ys)))

poly = PolyCollection(verts)#, facecolors=[cc('r'), cc('g'), cc('b'),
#                                         cc('y')])
poly.set_alpha(0.7)
ax.add_collection3d(poly, zs=zs, zdir='y')

ax.set_xlabel('X')
ax.set_xlim3d(0, 10)
ax.set_ylabel('Y')
ax.set_ylim3d(-1, 4)
ax.set_zlabel('Z')
ax.set_zlim3d(0, 1)
#make z-axis disappear
ax.w_zaxis.line.set_lw(0.)
ax.set_zticks([])

# make some of the panes transparent
ax.xaxis.set_pane_color((1.0, 1.0, 1.0, 0.0))
ax.yaxis.set_pane_color((1.0, 1.0, 1.0, 0.0))

# make the grid lines transparent
ax.xaxis._axinfo["grid"]['color'] =  (1,1,1,0)
ax.yaxis._axinfo["grid"]['color'] =  (1,1,1,0)
ax.zaxis._axinfo["grid"]['color'] =  (1,1,1,0)

Answer 3

使用它删除背景

mClusterIconGenerator.setBackground(null)

将背景设置为给定的Drawable，或删除背景。 @param background Drawable用作背景，或者为null以删除背景。

Android中的谷歌地图聚类

3 个答案: