将SVG图像解码为位图

Question

我正在使用Android Studio将我的SVG图像转换为XML文件.当我尝试使用R.drawable.svgimage访问它时它工作正常,但现在我需要将该图像解码为位图.

我尝试了以下内容.它为位图返回null.

mResId = R.drawable.svgimage
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeResource(
            mContext.getResources(), mResId, options); 

Answer 1

以下代码将完美地运行我使用它:这R.drawable.ic_airport是我的svg图像存储在drawable文件夹中.

    @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);
        Log.e(TAG, "getBitmap: 1");
        return bitmap;
    }

      private static Bitmap getBitmap(Context context, int drawableId) {
        Log.e(TAG, "getBitmap: 2");
        Drawable drawable = ContextCompat.getDrawable(context, drawableId);
        if (drawable instanceof BitmapDrawable) {
            return BitmapFactory.decodeResource(context.getResources(), drawableId);
        } else if (drawable instanceof VectorDrawable) {
            return getBitmap((VectorDrawable) drawable);
        } else {
            throw new IllegalArgumentException("unsupported drawable type");
        }
    }

       Bitmap bitmap = getBitmap(getContext(), R.drawable.ic_airport);

Answer 2

In the package androidx.core.graphics.drawable there is a function Drawable.toBitmap

val yourBitmap = getDrawable(R.drawable.svgimage)!!.toBitmap(width, height)