我尝试自定义地图标记,以便显示3个主要功能:
我使用了 android google map utils library 中的 IconGenerator ,但不知何故,标记的整个可点击区域都会受到影响。标记周围的一个非常大的区域是可点击的并激活标记。它还存在内容填充和重力属性的问题。
我在地图上添加了自定义黑客程序,以便在不打开信息窗口的情况下将标记放在前面(我设置了一个没有内容可显示的信息窗口,我在Marker中称为showInfoWindow click事件监听器。)
如何手动创建标记的图标并避免周围大的可点击区域出现问题?
我也尝试了here描述的实现,基本上是drawTextToBitmap()方法:
private Bitmap drawTextToBitmap(@DrawableRes int backgroundRes, String text) {
Resources resources = getResources();
float scale = resources.getDisplayMetrics().density;
Bitmap bitmap = BitmapFactory.decodeResource(resources, backgroundRes);
android.graphics.Bitmap.Config bitmapConfig = bitmap.getConfig();
if (bitmapConfig == null) {
bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888;
}
bitmap = bitmap.copy(bitmapConfig, true);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
// SET FONT COLOR (e.g. WHITE -> rgb(255,255,255))
paint.setColor(Color.rgb(255, 255, 255));
// SET FONT SIZE (e.g. 15)
paint.setTextSize((int) (15 * scale));
// SET SHADOW WIDTH, POSITION AND COLOR (e.g. BLACK)
paint.setShadowLayer(1f, 0f, 1f, Color.BLACK);
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
int x = (bitmap.getWidth() - bounds.width()) / 2;
int y = (bitmap.getHeight() + bounds.height()) / 2;
canvas.drawText(text, x, y, paint);
return bitmap;
}
但它没有按预期工作,因为我的文字比背景更大,而且我也不知道如何在文本的左边添加资源。
这是IconGenerator使用的实现:
private BitmapDescriptor getBitmapDescriptorForProduct(@NonNull final MyCustomObject product, boolean isActive) {
if (product.shouldDisplayWithLabel) {
// We use an custom layout for displaying markers on the map
@SuppressLint("InflateParams") View view =
LayoutInflater.from(getActivity()).inflate(R.layout.my_custom_label, null);
// Get the text view which will display the text
TextView label = (TextView) view.findViewById(R.id.text);
// Set the left drawable if needed
label.setCompoundDrawablesWithIntrinsicBounds(product.shouldDisplayWithDrawable ? R.drawable.my_custom_drawable : 0, 0,
0, 0);
// Set the text for the label
label.setText(product.label);
label.setBackgroundResource(R.drawable.my_custom_background);
// Set the layout for the icon
mIconGenerator.setContentView(view); // set the custom layout
// We don't want the default background
mIconGenerator.setBackground(null);
// Disable the content padding as we handle it in the view and in the 9patch resources
mIconGenerator.setContentPadding(0, 0, 0, 0);
// Make the icon and create the BitmapDescriptor necessary for the marker creation
Bitmap icon = mIconGenerator.makeIcon();
return BitmapDescriptorFactory.fromBitmap(icon);
} else {
// Lazy initialization for the normal markers
if (null == simpleMarkerIcon) {
simpleMarkerIcon = BitmapDescriptorFactory.fromResource(R.drawable.my_simple_marker);
}
// Reuse the bitmap for the simple markers that will be displayed on the map.
return simpleMarkerIcon;
}
}
LE @Harpreet,这是标记图标在使用您的解决方案时的样子:
如您所见,视图的属性未在位图中正确显示。
答案 0 :(得分:0)
public static Bitmap createDrawableFromView(Context context, View view) {
DisplayMetrics displayMetrics = new DisplayMetrics();
((Activity) context).getWindowManager().getDefaultDisplay()
.getMetrics(displayMetrics);
view.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
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;
}
注意: - 只需填写上下文,然后将完整的自定义创建的视图/布局添加为查看
的对象它会帮助你。