我正在使用此部分代码在Google Map版本2的MapFragment
中添加标记。
MarkerOptions op = new MarkerOptions();
op.position(point)
.title(Location_ArrayList.get(j).getCity_name())
.snippet(Location_ArrayList.get(j).getVenue_name())
.draggable(true);
m = map.addMarker(op);
markers.add(m);
我想使用我的drawable中的不同图像。
答案 0 :(得分:116)
您可以将Drawable
设置为Marker
。
BitmapDescriptor icon = BitmapDescriptorFactory.fromResource(R.drawable.current_position_tennis_ball)
MarkerOptions markerOptions = new MarkerOptions().position(latLng)
.title("Current Location")
.snippet("Thinking of finding some thing...")
.icon(icon);
mMarker = googleMap.addMarker(markerOptions);
VectorDrawables
和XML
基于Drawables
不可以使用此功能。
答案 1 :(得分:67)
@Lukas Novak答案没有显示任何内容,因为您还必须在Drawable
上设置界限。
这适用于任何可绘制的。以下是一个完整的示例:
public void drawMarker() {
Drawable circleDrawable = getResources().getDrawable(R.drawable.circle_shape);
BitmapDescriptor markerIcon = getMarkerIconFromDrawable(circleDrawable);
googleMap.addMarker(new MarkerOptions()
.position(new LatLng(41.906991, 12.453360))
.title("My Marker")
.icon(markerIcon)
);
}
private BitmapDescriptor getMarkerIconFromDrawable(Drawable drawable) {
Canvas canvas = new Canvas();
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
canvas.setBitmap(bitmap);
drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
drawable.draw(canvas);
return BitmapDescriptorFactory.fromBitmap(bitmap);
}
circle_shape.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
<size android:width="20dp" android:height="20dp"/>
<solid android:color="#ff00ff"/>
</shape>
答案 2 :(得分:7)
如果您以编程方式创建了Drawable
(因此您没有资源),可以使用:
Drawable d = ... // programatically create drawable
Canvas canvas = new Canvas();
Bitmap bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
canvas.setBitmap(bitmap);
d.draw(canvas);
BitmapDescriptor bd = BitmapDescriptorFactory.fromBitmap(bitmap);
然后您有BitmapDescriptor
,您可以将其传递到MarkerOptions
。
答案 3 :(得分:1)
基本上使用可绘制的位图。如果您有可绘制的对象,请将其转换为位图。
这是kotlin中的代码示例。
private fun placeNewMarker(whereToPlaceYourMarker: LatLng){
val pickupMarkerDrawable = resources.getDrawable(R.drawable.your_marker_drawable,null)
_pickupMarker = mMap?.addMarker(MarkerOptions()
.position(whereToPlaceYourMarker)
.draggable(true)
.title("My Marker")
.icon(BitmapDescriptorFactory.fromBitmap(pickupMarkerDrawable.toBitmap(pickupMarkerDrawable.intrinsicWidth, pickupMarkerDrawable.intrinsicHeight, null))))
}
答案 4 :(得分:1)
如果您使用的是 vector drawable
,请使用此扩展程序:
fun Context.bitmapDescriptorFromVector(vectorResId:Int): BitmapDescriptor {
val vectorDrawable = ContextCompat.getDrawable(this, vectorResId)
vectorDrawable!!.setBounds(0, 0, vectorDrawable.intrinsicWidth, vectorDrawable.intrinsicHeight)
val bitmap = Bitmap.createBitmap(vectorDrawable.intrinsicWidth, vectorDrawable.intrinsicHeight, Bitmap.Config.ARGB_8888)
vectorDrawable.draw(Canvas(bitmap))
return BitmapDescriptorFactory.fromBitmap(bitmap)
}
并设置为标记图标:
val markerOptions = MarkerOptions().position(latLng)
.title("Current Location")
.snippet("Thinking of finding some thing...")
.icon(bitmapDescriptorFromVector("Your icon resource id"))// call extension here
mMarker = googleMap.addMarker(markerOptions)