map.addMarker(new MarkerOptions()
.position(latLng)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.your_vector_asset))
.title(title);
this doesnot work when dealing with 向量资产s. The main reason to ask the question. The error with the above code:
java.lang.IllegalArgumentException。解码图像失败。提供的图像必须是位图。
9 个回答
0 人赞同
你可以使用这种方法。
private BitmapDescriptor bitmapDescriptorFromVector(Context context, int vectorResId) {
Drawable vectorDrawable = ContextCompat.getDrawable(context, vectorResId);
vectorDrawable.setBounds(0, 0, vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight());
Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
vectorDrawable.draw(canvas);
return BitmapDescriptorFactory.fromBitmap(bitmap);
So your code will look like:
map.addMarker(new MarkerOptions()
.position(latLng)
.icon(bitmapDescriptorFromVector(getActivity(), R.drawable.your_vector_asset))
.title(title);
Edit:
在Kotlin中,它可能看起来像。
private fun bitmapDescriptorFromVector(context: Context, vectorResId: Int): BitmapDescriptor? {
return ContextCompat.getDrawable(context, vectorResId)?.run {
setBounds(0, 0, intrinsicWidth, intrinsicHeight)
val bitmap = Bitmap.createBitmap(intrinsicWidth, intrinsicHeight, Bitmap.Config.ARGB_8888)
draw(Canvas(bitmap))
BitmapDescriptorFactory.fromBitmap(bitmap)
0 人赞同
我正在寻找完全相同的要求,看到这个问题让我一开始就很高兴,但和@Shuddh一样,我对给出的答案并不满意。
简而言之,我使用以下代码来满足这一要求。
private BitmapDescriptor bitmapDescriptorFromVector(Context context, @DrawableRes int vectorDrawableResourceId) {
Drawable background = ContextCompat.getDrawable(context, R.drawable.ic_map_pin_filled_blue_48dp);
background.setBounds(0, 0, background.getIntrinsicWidth(), background.getIntrinsicHeight());
Drawable vectorDrawable = ContextCompat.getDrawable(context, vectorDrawableResourceId);
vectorDrawable.setBounds(40, 20, vectorDrawable.getIntrinsicWidth() + 40, vectorDrawable.getIntrinsicHeight() + 20);
Bitmap bitmap = Bitmap.createBitmap(background.getIntrinsicWidth(), background.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
background.draw(canvas);
vectorDrawable.draw(canvas);
return BitmapDescriptorFactory.fromBitmap(bitmap);
和一个使用实例。
.icon(bitmapDescriptorFromVector(this, R.drawable.ic_car_white_24dp));
注意:你可能希望为你的矢量使用不同的边界,我的矢量大小为24dp,我使用了一张48dp的png图片(蓝色部分,也可以是矢量)作为背景。
更新:按照要求添加了截图。
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Here is the code for kotlin lovers ;)
private fun bitMapFromVector(vectorResID:Int):BitmapDescriptor {
val vectorDrawable=ContextCompat.getDrawable(context!!,vectorResID)
vectorDrawable!!.setBounds(0,0,vectorDrawable!!.intrinsicWidth,vectorDrawable.intrinsicHeight)
val bitmap=Bitmap.createBitmap(vectorDrawable.intrinsicWidth,vectorDrawable.intrinsicHeight,Bitmap.Config.ARGB_8888)
val canvas=Canvas(bitmap)
vectorDrawable.draw(canvas)
return BitmapDescriptorFactory.fromBitmap(bitmap)
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可能有点晚了,但这与谷歌地图V2版配合得很好。
public static BitmapDescriptor getBitmapFromVector(@NonNull Context context,
@DrawableRes int vectorResourceId,
@ColorInt int tintColor) {
Drawable vectorDrawable = ResourcesCompat.getDrawable(
context.getResources(), vectorResourceId, null);
if (vectorDrawable == null) {
Log.e(TAG, "Requested vector resource was not found");
return BitmapDescriptorFactory.defaultMarker();
Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
DrawableCompat.setTint(vectorDrawable, tintColor);
vectorDrawable.draw(canvas);
return BitmapDescriptorFactory.fromBitmap(bitmap);
初始化为。
locationMarkerIcon = LayoutUtils.getBitmapFromVector(ctx, R.drawable.ic_location_marker,
ContextCompat.getColor(ctx, R.color.marker_color));
使用方法。
googleMap.addMarker(MarkerOptions().icon(getMarkerIcon()).position(latLng));
注意。getMarkerIcon()
只是返回初始化的非空locationMarkerIcon
成员变量。
Screenshot:
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在Kotlin中:我使用下面的代码在Marker上显示SVG图片。这里,我没有使用背景色/SVG。
fun getBitmapDescriptorFromVector(context: Context, @DrawableRes vectorDrawableResourceId: Int): BitmapDescriptor? {
val vectorDrawable = ContextCompat.getDrawable(context, vectorDrawableResourceId)
val bitmap = Bitmap.createBitmap(vectorDrawable!!.intrinsicWidth, vectorDrawable.intrinsicHeight, Bitmap.Config.ARGB_8888)
val canvas = Canvas(bitmap)
vectorDrawable.setBounds(0, 0, canvas.width, canvas.height)
vectorDrawable.draw(canvas)
return BitmapDescriptorFactory.fromBitmap(bitmap)
像这样使用。
googleMap?.addMarker(MarkerOptions().position(LatLng(it.latitude!!, it.longitude!!))
.title(it.airLineDetails))?.setIcon(
getBitmapDescriptorFromVector(requireContext(), R.drawable.ic_flight_blue))
Screen Shot:
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If someone who is looking for in kotlin here is the method for you :
private fun bitmapDescriptorFromVector(vectorResId:Int):BitmapDescriptor {
var vectorDrawable = ContextCompat.getDrawable(requireContext(), vectorResId);
vectorDrawable!!.setBounds(0, 0, vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight());
var bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
var canvas = Canvas(bitmap);
vectorDrawable.draw(canvas);
return BitmapDescriptorFactory.fromBitmap(bitmap);
上述方法将把你的矢量图标转换为位图。
map.addMarker(new MarkerOptions()
.position(latLng)
.icon(bitmapDescriptorFromVector(getActivity(), R.drawable.your_vector_asset))
.title(title)
这个是为你的地图设置标记的,感谢Leo Droidcoder,从他的回答中,我已经把它转换成了kotlin。
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将矢量资源转换为位图对象并使用BitmapDescriptorFactory.fromBitmap(bitmap)
。
Bitmap bitmap = getBitmapFromVectorDrawable(getContext(),R.drawable.ic_pin);
BitmapDescriptor descriptor =BitmapDescriptorFactory.fromBitmap(bitmap);
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.icon(descriptor);
位图转换器。
public static Bitmap getBitmapFromVectorDrawable(Context context, int drawableId) {
Drawable drawable = AppCompatResources.getDrawable(context, drawableId)
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
drawable = (DrawableCompat.wrap(drawable)).mutate();
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
0 人赞同
Try this
MarkerOptions op = new MarkerOptions();
op.position(src_latlng);
Marker origin_marker = googleMap.addMarker(op);
Bitmap bitmap = getBitmap(this,R.drawable.ic_map_marker);
origin_marker.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
读取比特图
public Bitmap getBitmap(Context context, int drawableId) {
Drawable drawable = ContextCompat.getDrawable(context, drawableId);
if (drawable instanceof BitmapDrawable) {
return BitmapFactory.decodeResource(context.getResources(), drawableId);
} else if (drawable instanceof VectorDrawable) {
return getBitmap((VectorDrawable) drawable);
} else {
throw new IllegalArgumentException("unsupported drawable type");
ic_map_marker.xml
<vector android:height="32dp" android:viewportHeight="512.0"
android:viewportWidth="512.0" android:width="32dp" xmlns:android="http://schemas.android.com/apk/res/android">
<path android:fillColor="#f32f00" android:pathData="M288,284.8V480l-64,32V284.8c10.3,2.1 21,3.3 32,3.3S277.7,286.9 288,284.8zM384,128c0,70.7 -57.3,128 -128,128c-70.7,0 -128,-57.3 -128,-128S185.3,0 256,0C326.7,0 384,57.3 384,128zM256,64c0,-17.7 -14.3,-32 -32,-32s-32,14.3 -32,32s14.3,32 32,32S256,81.7 256,64z"/>
</vector>
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对于Kotlin用户来说,请查看下面的代码,正如我在Fragment类中所做的那样。
class MapPinFragment : Fragment() {
private lateinit var googleMap1: GoogleMap
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
return inflater.inflate(R.layout.fragment_map_pin, container, false)
override fun onActivityCreated(savedInstanceState: Bundle?) {
super.onActivityCreated(savedInstanceState)
mapView.onCreate(savedInstanceState)
mapView.onResume()
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
mapView.getMapAsync { googleMap ->
googleMap1 = googleMap as GoogleMap
addCustomMarker()
private fun addCustomMarker() {
Log.d("addCustomMarker", "addCustomMarker()")
if (googleMap1 == null) {
return
// adding a marker on map with image from drawable
googleMap1.addMarker(
MarkerOptions()
.position(LatLng(23.0225 , 72.5714))
.icon(BitmapDescriptorFactory.fromBitmap(getMarkerBitmapFromView()))
override fun onDestroy() {
super.onDestroy()
if (mapView != null)
mapView.onDestroy()
override fun onLowMemory() {
super.onLowMemory()
mapView.onLowMemory()
private fun getMarkerBitmapFromView(): Bitmap? {
val customMarkerView: View? = layoutInflater.inflate(R.layout.view_custom_marker, null)
// val markerImageView: ImageView =
// customMarkerView.findViewById<View>(R.id.profile_image) as ImageView
customMarkerView?.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED );
customMarkerView?.layout(0, 0, customMarkerView.measuredWidth, customMarkerView.measuredHeight);
customMarkerView?.buildDrawingCache();
val returnedBitmap = Bitmap.createBitmap(
customMarkerView!!.measuredWidth, customMarkerView.measuredHeight,
Bitmap.Config.ARGB_8888
val canvas = Canvas(returnedBitmap)
canvas.drawColor(Color.WHITE, PorterDuff.Mode.SRC_IN)
val drawable = customMarkerView.background
drawable?.draw(canvas);
customMarkerView.draw(canvas);
return returnedBitmap;