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VectorDrawable with GoogleMap BitmapDescriptor

由 我怕爱的太早我们不能终老 提交于 2019-11-30 02:54:09

Possible workaround: 

private BitmapDescriptor getBitmapDescriptor(int id) {
    Drawable vectorDrawable = context.getDrawable(id);
    int h = ((int) Utils.convertDpToPixel(42, context));
    int w = ((int) Utils.convertDpToPixel(25, context));
    vectorDrawable.setBounds(0, 0, w, h);
    Bitmap bm = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bm);
    vectorDrawable.draw(canvas);
    return BitmapDescriptorFactory.fromBitmap(bm);
}

According to the bug report (posted by vaughandroid - thanks!) using a VectorDrawable won't be supported for the time being. See the comment in the bug report for more information.

Here's the suggested workaround from the Google Maps team:

/**
 * Demonstrates converting a {@link Drawable} to a {@link BitmapDescriptor},
 * for use as a marker icon.
 */
private BitmapDescriptor vectorToBitmap(@DrawableRes int id, @ColorInt int color) {
    Drawable vectorDrawable = ResourcesCompat.getDrawable(getResources(), id, null);
    Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
            vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    DrawableCompat.setTint(vectorDrawable, color);
    vectorDrawable.draw(canvas);
    return BitmapDescriptorFactory.fromBitmap(bitmap);
}

used this way:

// Vector drawable resource as a marker icon.
    mMap.addMarker(new MarkerOptions()
            .position(ALICE_SPRINGS)
            .icon(vectorToBitmap(R.drawable.ic_android, Color.parseColor("#A4C639")))
            .title("Alice Springs"));

Tinting of the vector is a bonus

Here is another reference: http://qiita.com/konifar/items/aaff934edbf44e39b04a

public class ResourceUtil {

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static Bitmap getBitmap(VectorDrawable vectorDrawable) {
    Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
            vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    vectorDrawable.draw(canvas);
    return bitmap;
}

private static Bitmap getBitmap(VectorDrawableCompat vectorDrawable) {
    Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
            vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    vectorDrawable.draw(canvas);
    return bitmap;
}

public static Bitmap getBitmap(Context context, @DrawableRes int drawableResId) {
    Drawable drawable = ContextCompat.getDrawable(context, drawableResId);
    if (drawable instanceof BitmapDrawable) {
        return ((BitmapDrawable) drawable).getBitmap();
    } else if (drawable instanceof VectorDrawableCompat) {
        return getBitmap((VectorDrawableCompat) drawable);
    } else if (drawable instanceof VectorDrawable) {
        return getBitmap((VectorDrawable) drawable);
    } else {
        throw new IllegalArgumentException("Unsupported drawable type");
    }
}
}

VectorDrawable to BitmapDescriptor without tint

private BitmapDescriptor getBitmapDescriptor(@DrawableRes int id) {
        Drawable vectorDrawable = ResourcesCompat.getDrawable(getResources(), id, null);
        Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(),
                vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        vectorDrawable.draw(canvas);
        return BitmapDescriptorFactory.fromBitmap(bitmap);
    }

Thanks @lbarbosa

the same on Kotlin

private fun getBitmapDescriptorFromVector(id: Int, context: Context): BitmapDescriptor {
    var vectorDrawable: Drawable = context.getDrawable(id)
    var h = (24 * getResources().getDisplayMetrics().density).toInt();
    var w = (24 * getResources().getDisplayMetrics().density).toInt();
    vectorDrawable.setBounds(0, 0, w, h)
    var bm = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888)
    var canvas = Canvas(bm)
    vectorDrawable.draw(canvas)
    return BitmapDescriptorFactory.fromBitmap(bm)
}

EDIT @ CoolMind you are totally right, thanks - edited

Kotlin Version

private fun getBitmapDescriptor(context: Context, id: Int): BitmapDescriptor? {
    val vectorDrawable: Drawable?
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
        vectorDrawable = context.getDrawable(id)
    } else {
        vectorDrawable = ContextCompat.getDrawable(context, id)
    }
    if (vectorDrawable != null) {
        val w = vectorDrawable.intrinsicWidth
        val h = vectorDrawable.intrinsicHeight

        vectorDrawable.setBounds(0, 0, w, h)
        val bm = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        val canvas = Canvas(bm);
        vectorDrawable.draw(canvas);

        return BitmapDescriptorFactory.fromBitmap(bm);
    }
    return null
}
标签
android
google-maps
vector-graphics
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