在 OverlayItem 中旋转可绘制对象
我有一个地图视图，每个 OverlayItem 有一个自定义项目，该类在这里。
class MapObject extends OverlayItem{
String name;
String heading;
Drawable marker = null;
PlaneObject(GeoPoint pt, String name, String snippet, Drawable marker){
super(pt,name,snippet);
this.marker = marker;
}
@Override
public Drawable getMarker(int stateBitset){
Drawable result = marker;
setState(result,stateBitset);
result.setBounds(-result.getIntrinsicWidth()/2, -result.getIntrinsicHeight(), result.getIntrinsicWidth() /2, 0);
//Want to rotate the drawable to the angle stored in the heading variable
return(result);
}
我希望
能够通过类内的标题旋转 Drawable，这样当 mapView 调用它时，它将返回旋转的 Drawable。
I have a mapview that has a custom item per OverlayItem and the class is here.
class MapObject extends OverlayItem{
String name;
String heading;
Drawable marker = null;
PlaneObject(GeoPoint pt, String name, String snippet, Drawable marker){
super(pt,name,snippet);
this.marker = marker;
}
@Override
public Drawable getMarker(int stateBitset){
Drawable result = marker;
setState(result,stateBitset);
result.setBounds(-result.getIntrinsicWidth()/2, -result.getIntrinsicHeight(), result.getIntrinsicWidth() /2, 0);
//Want to rotate the drawable to the angle stored in the heading variable
return(result);
}
}
I would like to be able to rotate the Drawable by the heading within the class so when the mapView calls it then it will return the rotated drawable.
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评论（1）
看看这个（更改签名以实际返回可绘制对象！）
旋转位图以匹配方位
Take a look at this (change the signature to actually return the drawable!)
Rotate Bitmap to Match Bearing