Question

我将经纬度作为Google商家信息网址中的字符串获取。现在我想使用获得的坐标在地图上放置一个图钉。有些东西是愚蠢的，因为我试图将字符串解析为GeoPoint的整数，结果显示为0,0所以引脚位于非洲海岸附近。这是我的代码：

    int lati5Int, longi5Int;        

String latiString = in.getStringExtra(TAG_GEOMETRY_LOCATION_LAT);
    String longiString = in.getStringExtra(TAG_GEOMETRY_LOCATION_LNG);
    TextView getLatiStringtv.setText(latiString);
    TextView getLongiStringtv.setText(longiString);

    try { 
        lati5Int = Integer.parseInt(getLatiStringtv.getText().toString());
        longi5Int = Integer.parseInt(getLongiStringtv.getText().toString());
    } catch(NumberFormatException nfe) { 
       System.out.println("Could not parse " + nfe); 
    }
// shows that the ints are zeros
    doubleLatiTV.setText(Integer.toString(lati5Int));
    doubleLongiTV.setText(Integer.toString(longi5Int));

//--- GeoPoint---
newPoint = new GeoPoint(lati5Int,longi5Int);
mapController.animateTo(newPoint);
mapController.setZoom(17);
//--- Place pin ----
marker = getResources().getDrawable(R.drawable.malls);      

OverlayItem overlaypoint = new OverlayItem(newPoint, "Boing", "Whattsup");
CustomPinpoint customPin = new CustomPinpoint(marker, SMIMap.this);
customPin.insertPinpoint(overlaypoint);
overlayList.add(customPin);

我认为错误在于解析整数：

            lati5Int = Integer.parseInt(getLatiStringtv.getText().toString());
        longi5Int = Integer.parseInt(getLongiStringtv.getText().toString());

我认为解析会看到坐标中的小数点而且会发疯。那么如何将坐标字符串解析为整数，以便GeoPoint将它们视为正确格式化的坐标，如：30.487263，-97.970799

Answer 1

GeoPoint不希望将其视为30.487263，-97.970799。它希望它们为整数30487263，-97970799。就像A.A所说的那样，首先解析为双倍，乘以E6，然后转换为int。

所以可能是这样的：

lati5Int = Double.parseDouble(getLatiStringtv.getText().toString());
latiE6 = (int) (lati5Int*1000000);

将字符串转换为Android Geopoint的int

1 个答案: