android - 在 Android 上添加到 map 时如何为标记设置动画？

Question

我想在将 map 标记添加到 map 时对其进行动画处理。

用户应该看到 map 上有他周围的标记。每个新标记都应该反弹。

Answer 1

您可以实现 onMarkerClick() 并使标记在用户点击它时反弹。试试下面的代码实现。我试过了，效果很好。

 private Marker mPerth;  
 private Marker mPerth = mMap.addMarker(new MarkerOptions()
             .position(PERTH)
            .title("Perth")
            .snippet("Population: 1,738,800"));        

  @Override   
public boolean onMarkerClick(final Marker marker) 
  {
      // This causes the marker at Perth to bounce into position when it is clicked.
    if (marker.equals(mPerth)) {
        final Handler handler = new Handler();
        final long start = SystemClock.uptimeMillis();
        Projection proj = mMap.getProjection();
        Point startPoint = proj.toScreenLocation(PERTH);
        startPoint.offset(0, -100);
        final LatLng startLatLng = proj.fromScreenLocation(startPoint);
        final long duration = 1500;
        final Interpolator interpolator = new BounceInterpolator();
        handler.post(new Runnable() {
            @Override
            public void run() {
                long elapsed = SystemClock.uptimeMillis() - start;
                float t = interpolator.getInterpolation((float) elapsed / duration);
                double lng = t * PERTH.longitude + (1 - t) * startLatLng.longitude;
                double lat = t * PERTH.latitude + (1 - t) * startLatLng.latitude;
                marker.setPosition(new LatLng(lat, lng));
                if (t < 1.0) {
                    // Post again 16ms later.
                    handler.postDelayed(this, 16);
                }
            }
        });
    }
    // We return false to indicate that we have not consumed the event and that we wish
    // for the default behavior to occur (which is for the camera to move such that the
    // marker is centered and for the marker's info window to open, if it has one).
    return false;
}

除了 onClick 事件之外，您还可以在您的应用程序中添加标记时使用它。我希望这只是你想要的。