当通过seekbar改变尺寸时，Google Maps for Android v2上的圆圈闪烁 [英] Circle on Google Maps for Android v2 is flickering when size changes by seekbar

问题描述

 我正在实现一种在Android的Google Map（v2）上显示搜索半径的方法： //用于在用户周围绘制圆的方法
 private void drawMapSearchRadius（int radius）{
 if（mMap！= null）{
 final LatLng userLatLng = getUserLatLng（）; 
 if（mSearchCircle == null）{
 CircleOptions circleOptions = new CircleOptions（）; 
 circleOptions.fillColor（Color.parseColor（＃447755ff））; 
 circleOptions.strokeColor（Color.TRANSPARENT）; 
 circleOptions.center（userLatLng）; 
 circleOptions.radius（radius）; 
 mSearchCircle = mMap.addCircle（circleOptions）; 
} else {
 mSearchCircle.setCenter（userLatLng）; 
 mSearchCircle.setRadius（radius）; 
} 
} 
} 
  

半径由a SeekBar，像这样（我删除了一些不相关的代码）：

  @Override 
 public void onProgressChanged（SeekBar seekBar，int progress，boolean fromUser）{
 final int radius = progress + DEFAULT_MIN_RADIUS; 
 drawMapSearchRadius（radius）; 
 ... 
  

当我滑动SeekBar时，圆的半径按预期变化，但它明显闪烁很多。它看起来和感觉非常糟糕。

有没有人遇到这个错误，可以告诉我我做错了什么，或者我可以做什么更好地限制，或者在最好的情况下，消除圈闪烁？

提前致谢

编辑：显然这是一个已经存在了一年多的错误，上个月谷歌已经承认。 由于Google未知对于修复这样的错误很快，我对修复的希望很小。所以我想我的问题正在改变：这是否有任何解决方法？

解决方案

此问题（ 5707）已经>于2016年10月24日解决

I am implementing a way to show a search radius on a Google Map (v2) in Android per this method:

// Method for drawing a circle around the user
private void drawMapSearchRadius(int radius) {
    if(mMap != null) {
        final LatLng userLatLng = getUserLatLng();
        if(mSearchCircle == null){
            CircleOptions circleOptions = new CircleOptions();
            circleOptions.fillColor(Color.parseColor("#447755ff"));
            circleOptions.strokeColor(Color.TRANSPARENT);
            circleOptions.center(userLatLng);
            circleOptions.radius(radius);
            mSearchCircle = mMap.addCircle(circleOptions);
        } else {
            mSearchCircle.setCenter(userLatLng);
            mSearchCircle.setRadius(radius);
        }
    }
}

The radius is determined with a SeekBar, like so (I removed some unrelated code):

@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    final int radius = progress + DEFAULT_MIN_RADIUS;
    drawMapSearchRadius(radius);
...

When I slide the SeekBar, the radius of the circle changes as expected, but it is visibly flickering a lot. It looks and feels just very bad.

Did anyone experience this error and could tell me what I did wrong or what I could do better to limit or, in the best case, eliminate the circle flickering?

Thanks in advance

EDIT: Apparently it's a bug existing for over a year already, acknowledged by Google last month.

Since Google is not known for fixing errors like this quickly, I have very little hope for a fix.. So I guess my question is changing to this: Are there any workarounds for the meantime?

解决方案

This issue (5707) has been solved on October 24, 2016

这篇关于当通过seekbar改变尺寸时，Google Maps for Android v2上的圆圈闪烁的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！