创建带有阴影的文本位图。-Createabitmapoftextwithshadow

I want to create a bitmap of text with shadow, but I can't get good result. The problem is, when I directly draw the text, it looks good, but when I draw the text to a bitmap, and then draw the bitmap, it looks ugly.

我想创建一个带有阴影的文本的位图，但是我不能得到好的结果。问题是，当我直接绘制文本时，它看起来很好，但是当我把文本绘制到位图时，然后绘制位图，它看起来很难看。

Code:

代码:

public class MyView extends View {
    private Paint paint;
    private Bitmap bitmap;

    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public void init(){
        paint = new Paint();
        paint.setColor(Color.BLACK);
        paint.setTextSize(50);
        paint.setAntiAlias(true);
        paint.setTypeface(Typeface.create("HELVETICA", Typeface.NORMAL));
        paint.setShadowLayer(30, 0, 0, Color.BLACK);

        bitmap = Bitmap.createBitmap(500, 300, Bitmap.Config.ARGB_8888); 
        Canvas canvas2 = new Canvas(bitmap);
        canvas2.drawText("Dec Use", 100, 100, paint);
    }

    @Override
    protected void onDraw(Canvas canvas){
        super.onDraw(canvas);

        final boolean useBitmap = true;
        if(useBitmap){
            canvas.drawBitmap(bitmap, 0, 0, null);
        }
        else{
            canvas.drawText("Dec Use", 100, 100, paint);
        }
    }
}

When useBitmap is set to false, the result looks like this

当useBitmap被设置为false时，结果是这样的。

When useBitmap is set to true, the result looks like this

当useBitmap被设置为true时，结果是这样的。

Am I missing something?

我遗漏了什么东西?

1 个解决方案

    bitmap = Bitmap.createBitmap(2000, 2000, Bitmap.Config.ARGB_8888); 
    Canvas canvas2 = new Canvas(bitmap);
    canvas2.drawText("Dec Use", 200, 200, paint);

    paint.setShadowLayer(20, 0, 0, Color.GRAY);
    canvas2.drawText("Dec Use", 200, 200, paint);