Question

这是我的活动，我正在接收位图并制作多个位图并在一个图像视图中显示我在图像视图中获取多张图像但未正确设置请帮助我？

        private Bitmap Final_Murge_Bitmap() 
        {  
        Murge_Bitmap = null;
        try {

        Murge_Bitmap = Bitmap.createBitmap(500, 500, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(Murge_Bitmap);
        c.drawBitmap(Murge_Bitmap, 0, 0, null);
        Drawable drawable1 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable2 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable3 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable4 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable5 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable6 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable7 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable8 = new BitmapDrawable(Bitmap_recieve);

        drawable1.setBounds(220, 220, 501, 501);
        drawable2.setBounds(330, 330, 400, 400);
        drawable3.setBounds(160, 150, 200, 200);
        drawable4.setBounds(140, 120, 200, 200);
        drawable5.setBounds(120, 100, 400, 400);
        drawable6.setBounds(100, 80, 500, 500);
        drawable7.setBounds(80, 70, 200, 200);
        drawable8.setBounds(60, 60, 200, 200);

        drawable1.draw(c);
        drawable2.draw(c);
        drawable3.draw(c);
        drawable4.draw(c);
        drawable5.draw(c);
        drawable6.draw(c);
        drawable7.draw(c);
        drawable8.draw(c);

    } catch (Exception e)
    {
    }
    return Murge_Bitmap;
    }}

Answer 1

您可以执行以下操作：

public Bitmap drawMultipleBitmapsOnImageView(Bitmap b) {
        Bitmap drawnBitmap = null;

        try {
            drawnBitmap = Bitmap.createBitmap(400, 400, Config.ARGB_8888);

            Canvas canvas = new Canvas(drawnBitmap);
                     // JUST CHANGE TO DIFFERENT Bitmaps and coordinates .
            canvas.drawBitmap(b, 100, 100, null);
            canvas.drawBitmap(b, 200, 300, null);
            canvas.drawBitmap(b, 100, 200, null);
            canvas.drawBitmap(b, 300, 350, null);

        } catch (Exception e) {
            e.printStackTrace();
        }
        return drawnBitmap;
    }

您可以像下面这样调用此方法：

ImageView myImageView = (ImageView) findViewById(R.id.myImageView);
        Bitmap bitmap = ((BitmapDrawable) myImageView.getDrawable())
                .getBitmap();
        Bitmap b = drawMultipleBitmapsOnImageView(bitmap);

        myImageView.setImageBitmap(b);

请给我一些反馈。

希望有所帮助。

Answer 2

您可以像已经说过的那样绘制所有内容，也可以使用这些BitmapDrawables创建LayerDrawable。它更容易并且消耗更少的内存，所以如果你可以用它实现你想要的，那就去做吧。

private LayerDrawable createLayerDrawable() {
      Drawable layers = new Drawable[4];
      layers[0] = murge_drawable; // converted from Murge_Bitmap
      layers[1] = drawable1;
      layers[2] = drawable2;
      layers[3] = drawable3;
      // ...
      return new LayerDrawable(layers);
}

imageview.setImageDrawable(getLayerDrawable());

无法在一个imageview中设置多个位图

2 个答案: