GoogleMap.animateCamera不适用于后台线程 [英] GoogleMap.animateCamera not working on background thread
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问题描述
如何在后台线程中更改相机焦点?
缩放在线程中正常工作,但不改变坐标。
如果线程中没有使用,也可以更改坐标,但我打算使用延迟,因此它需要存在。
@Override
public void run(){
if(points.size()> 0){
Polyline line = map.addPolyline(new PolylineOptions( )
.addAll(points)
.width(5)
.color(Color.RED));
System.out.println(points.get(0).toString());
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)));
map.animateCamera(CameraUpdateFactory.zoomTo(14));
}
}
解决方案
因为您可能没有在主UI线程中运行此功能。
更改
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)));
map.animateCamera(CameraUpdateFactory.zoomTo(14));
至
runOnUiThread(new Runnable(){
$ b $ @Override
public void run(){
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)) );
map.animateCamera(CameraUpdateFactory.zoomTo(14));
}
});
How do I change the camera focus inside a background thread? The zoom works fine in the thread, but changing the coordinates doesn't. Also changing the coordinates works if not used in the thread, but I intend on using delays so It needs to be in there.
@Override
public void run() {
if (points.size() > 0){
Polyline line = map.addPolyline(new PolylineOptions()
.addAll(points)
.width(5)
.color(Color.RED));
System.out.println(points.get(0).toString());
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)));
map.animateCamera(CameraUpdateFactory.zoomTo(14));
}
}
解决方案
Probably because you may not be running this in a main UI thread
Change
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)));
map.animateCamera(CameraUpdateFactory.zoomTo(14));
to
runOnUiThread(new Runnable() {
@Override
public void run() {
map.animateCamera(CameraUpdateFactory.newLatLng(points.get(0)));
map.animateCamera(CameraUpdateFactory.zoomTo(14));
}
});
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