Question

我想访问变量中定义的当前位置。之后，我想在加载页面时自动将该位置的元素着色。问题是我不知道如何访问该定义的位置，并在加载时将颜色附加到html。我已经尝试过了，但是当我加载页面时它没有任何颜色。也许我的代码错了，任何人都可以帮忙吗？

var gigi = "P15";//id of g
var posisi = "C";//id of polygon
var kondisi = "amf";
if(kondisi=="amf"){
var group = $('polygon').parentNode().attr(gigi);
group.attr(posisi).css({fill: "#333333"});
$('polygon').html('XX');
}

Answer 1

https://jsfiddle.net/9n9jack8/ - 在您的示例中，您没有加载jQuery，这是第一个问题。private class LoadMarker extends AsyncTask<String, Void, Bitmap> { @Override protected Bitmap doInBackground(String... params) { // Get bitmap from server Bitmap overlay; try { URL url = new URL(params[0]); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setDoInput(true); connection.connect(); InputStream input = connection.getInputStream(); overlay = BitmapFactory.decodeStream(input); } catch (IOException e) { e.printStackTrace(); return null; } return overlay; } protected void onPostExecute(Bitmap bitmap) { LatLng pLatLng = new LatLng(currentLocation.getLatitude(), currentLocation.getLongitude()); // If received bitmap successfully, draw it on our drawable if (bitmap != null) { View custom_layout = ((LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.view_custom_marker, null); ImageView iv_category_logo = (ImageView) custom_layout.findViewById(R.id.profile_image); Bitmap pinbit = Bitmap.createScaledBitmap(bitmap, 40, 60, false); iv_category_logo.setImageBitmap(pinbit); BitmapDescriptor bitmapDescriptor = BitmapDescriptorFactory.fromBitmap(createDrawableFromView(mContext, custom_layout)); // Add the new marker to the map googleMap.addMarker(new MarkerOptions() .position(pLatLng) .title("") .snippet("") .icon(bitmapDescriptor)); } else { // Add the new marker to the map googleMap.addMarker(new MarkerOptions() .position(pLatLng) .title("") .icon(BitmapDescriptorFactory.fromResource(R.mipmap.ic_marker))); } } /** * Convert a view to bitmap * * @param context * @param view * @return */ private Bitmap createDrawableFromView(Context context, View view) { DisplayMetrics displayMetrics = new DisplayMetrics(); ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(displayMetrics); view.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT)); view.measure(displayMetrics.widthPixels, displayMetrics.heightPixels); view.layout(0, 0, displayMetrics.widthPixels, displayMetrics.heightPixels); view.buildDrawingCache(); Bitmap bitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); view.draw(canvas); return bitmap; } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Init your map here new LoadMarker().execute(); }

使用javascript访问svg中的当前位置

1 个答案: