【Android】图像中Drawable向Bitmap的两种转换方法

来源：互联网发布：高考心态调整知乎编辑：程序博客网时间：2024/06/05 02:21

Drawable和Bitmap转换

方法一：

    private void drawableToBitamp(Drawable drawable)    {        int w = drawable.getIntrinsicWidth();        int h = drawable.getIntrinsicHeight();        System.out.println("Drawable转Bitmap");        Bitmap.Config config =                 drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888                        : Bitmap.Config.RGB_565;        bitmap = Bitmap.createBitmap(w,h,config);        //注意，下面三行代码要用到，否在在View或者surfaceview里的canvas.drawBitmap会看不到图        Canvas canvas = new Canvas(bitmap);           drawable.setBounds(0, 0, w, h);           drawable.draw(canvas);    }

方法二：直接转换

    private void drawableToBitamp(Drawable drawable)    {        BitmapDrawable bd = (BitmapDrawable) drawable;        bitmap = bd.getBitmap();    }

0 0