贯彻落针动漫谷歌地图上的android [英] Implement falling pin animation on google maps android

问题描述

我实现谷歌地图在我的Andr​​oid应用程序。在这个过程中，我想补充的下降针动画。我已经找遍了人，但无法找到这样做的具体方法。任何一个可以帮助我如何做将是一个很大的帮助......

I am implementing google maps in my android app. In this process I would like to add falling pin animation. I have searched every were but could not find the exact method to do this. Can any one help me out how to do will be a great help...

推荐答案

添加标记所需的位置在地图上，然后调用此函数与标记

Add marker to desired position in map then call this function with that marker

private void dropPinEffect(final Marker marker) {
        final Handler handler = new Handler();
        final long start = SystemClock.uptimeMillis();
        final long duration = 1500;

        final Interpolator interpolator = new BounceInterpolator();

        handler.post(new Runnable() {
            @Override
            public void run() {
                long elapsed = SystemClock.uptimeMillis() - start;
                float t = Math.max(
                        1 - interpolator.getInterpolation((float) elapsed
                                / duration), 0);
                marker.setAnchor(0.5f, 1.0f + 14 * t);

                if (t > 0.0) {
                    // Post again 15ms later.
                    handler.postDelayed(this, 15);
                } else {
                    marker.showInfoWindow();

                }
            }
        });
    }

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