如何在Android中将图标转换为位图？

Question

我想在android中将Icon转换为Bitmap对象。

我的目标是从通知图标转换为位图。

我该怎么办？

感谢您的所有答案！

Answer 1

您可以使用此课程。我通常也会使用这段代码。

public static Bitmap drawableToBitmap (Drawable drawable) {
Bitmap bitmap = null;

if (drawable instanceof BitmapDrawable) {
    BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
    if(bitmapDrawable.getBitmap() != null) {
        return bitmapDrawable.getBitmap();
    }
}

if(drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
    bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888); // Single color bitmap will be created of 1x1 pixel
} else {
    bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
}

Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;

}

Answer 2

希望这有帮助

Bitmap bitmapIcon = BitmapFactory.decodeResource(getResources(), R.drawable.icon);