Android的谷歌地图V2摄像头动画 [英] Android Google Maps v2 Camera Animation

问题描述

所以林不知道这是否是一个错误或没有......可能还是我可能已经错过了一些东西。

So im not sure if this is a bug or not yet... might be or I may have missed something.

反正所以这里是链接到谷歌地图V2相机控制。的https://developers.google.com/maps/documentation/android/views#moving_the_camera

Anyway so here is the link to Google Maps V2 Camera Controls. https://developers.google.com/maps/documentation/android/views#moving_the_camera

这个问题：

动画已经到动画不调用onFinish（位置）;

Animate to a location already animated to does not call onFinish();

如何复制：

mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(mLocation.getLatLng(), zoomLevel), 200, new GoogleMap.CancelableCallback() {

                    @Override
                    public void onFinish() {
                        //DO some stuff here!
                    Log.d("animation", "onFinishCalled");

                    }

                    @Override
                    public void onCancel() {
                    Log.d("animation", "onCancel");


                    }
                }); 

这问题可能来约当用户双击水龙头的东西​​，要求即使之间有一个很长一段时间同样的动画，onFinish将只能被称为一个成功的动画。当相机已经定位的onFinish方法不会被调用！

This issue may well come about when a user double taps something which called the same animation even if there is a long time between, onFinish will only be called for a successful animation. When the camera is already positioned the onFinish method will not be called!

我就可以去各地做检查之前，我做任何相机的动画，但我不喜欢，作为它的一种浪费。

I could go around doing checks before I do any camera animation but I don't like that as its wasteful.

任何帮助将是AP preciated。 谢谢你。

Any help would be appreciated. Thanks.

推荐答案

我有同样的问题时，我想移动摄像机到同一位置，这似乎是一个错误。 即使旧的和新的位置是不一样的，差异是如此之小，例如：老position.latitude = 94.54284009112，新position.latitude = 94.54284003451，忽略了最低的工作。 我的解决办法是截断值只得到old_position.latitude = new_position.latitude = 94.54，然后我做了测试。

I have the same problem when i want to move camera to the same position, it seems like a bug. Even if old and new position are not the same and the difference is so small , ex: old position.latitude = 94.54284009112, new position.latitude = 94.54284003451, it dosen't work. my solution is to truncate values to get only old_position.latitude = new_position.latitude = 94.54, then i do a test.

还有一个问题是与移动摄像机和滚动地图的同时，对于我禁用滚动手势移动前及onFinish（启用它）和OnCancel的（）。

There is another problem with moving camera and scroll the map in the same time, for that i disable scroll gesture before moving and enable it on the onFinish() and the onCancel().

public void animateCameraTo(final double lat, final double lng)
{
    _googleMap = getMap();
    CameraPosition camPosition = _googleMap.getCameraPosition();
    if (!((Math.floor(camPosition.target.latitude * 100) / 100) == (Math.floor(lat * 100) / 100) && (Math.floor(camPosition.target.longitude * 100) / 100) == (Math.floor(lng * 100) / 100)))
    {
        _googleMap.getUiSettings().setScrollGesturesEnabled(false);
        _googleMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(lat, lng)), new CancelableCallback()
        {

            @Override
            public void onFinish()
            {
                _googleMap.getUiSettings().setScrollGesturesEnabled(true);

            }

            @Override
            public void onCancel()
            {
                _googleMap.getUiSettings().setAllGesturesEnabled(true);

            }
        });
    }

}

希望这有助于你;）

Hope this helps you ;)

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