问题描述
我想使用布局而不是我的标记
我使用Google Maps Api 2作为Android应用。
I want to use a layout and not a drawable for my marker
I am using with Google Maps Api 2 for an Android app.
喜欢这样:
Marker m = googleMap
.addMarker(new MarkerOptions()
.position(LOC)
.snippet(user)
.title(name)
.icon(BitmapDescriptorFactory.fromResource(R.layout.map_marker)));
但是,它似乎只是为了使用 drawable
文件夹。
However, it seems this is only designed for use from drawable
folder.
我只是带有背景的图像,我可以根据标记类型更改颜色。这是我想要使用的布局:
I simply what an image with a background where I can change colors based on marker type. This is the layout I want to use:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#222"
android:id="@+id/llMarker">
<ImageView
android:id="@+id/ivMarker"
android:layout_marginTop="5dp"
android:layout_width="40dp"
android:layout_height="40dp" />
</LinearLayout>
非常基本。我如何将其用作标记? (或者至少复制我想要的最终结果?)
Pretty basic. How can I use this as a marker? (or at least replicate the end result that I am going for?)
文件说你可以使用这个:
The documents say you can use this:
fromResource (int resourceId)
所以我假设了布局可能有效。
So I assumed a layout might work.
更新:
我从答案中采用了这个概念下面并重做一些事情;这仍然不起作用;没有错误。只是不会显示图像。
I have taken the concept from answer below and reworked some things; this still is not working; no errors. Just will not show image.
LayoutInflater inflater = (LayoutInflater) getActivity()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.map_marker, null);
m = googleMap
.addMarker(new MarkerOptions()
.position(LOC)
.snippet(user)
.title(name)
.icon(BitmapDescriptorFactory.fromBitmap(loadBitmapFromView(v))));
//方法
public static Bitmap loadBitmapFromView(View v) {
if (v.getMeasuredHeight() <= 0) {
v.measure(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT);
Bitmap b = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
v.draw(c);
return b;
}
return null;
}
推荐答案
你不能直接使用布局使用:
You cannot directly use a layout with BitmapDescriptorFactory.fromResource()
:
但是,您可以将布局绘制到位图中,然后使用它。您需要:
However, you could draw the layout into a bitmap, and then use that. You'd need to:
- 从xml中扩充布局(使用
LayoutInflater
)。 - 更改您想要的任何属性(例如背景颜色)。
- 将此布局渲染为
位图
,通过Canvas
,例如描述。 - 将此位图传递到。
- Inflate the layout from xml (with a
LayoutInflater
). - Change whatever properties you want (e.g. background color).
- Render this layout into a
Bitmap
, viaCanvas
, for example as described here. - Pass this bitmap into
BitmapDescriptorFactory.fromBitmap()
.
这篇关于为Android版谷歌地图标记使用xml布局的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!