Android合并两张图片

Question

我有这两张图片，我基本上在画布上合并。现在我想将该画布保存为图像。我应该怎么做，或者如果有任何其他方式来合并两个图像。

我的示例代码 -

  Bitmap bmp1 = BitmapFactory.decodeResource(getResources(), 
       R.drawable.duckpic); 
     Bitmap bmp2 = BitmapFactory.decodeResource(getResources(), 
       R.drawable.img); 
     // canvas.drawColor(Color.BLACK); 
     // canvas.drawBitmap(_scratch, 10, 10, null); 
     Bitmap bmOverlay = Bitmap.createBitmap(bmp2.getWidth(), bmp2 
       .getHeight(), bmp2.getConfig()); 
     // Canvas cs = new Canvas(bmp2); 
     canvas.scale((float) 0.5, (float) 0.5); 
     canvas.drawBitmap(bmp2, new Matrix(), null); 
     canvas.drawBitmap(bmp1, new Matrix(), null); 
     canvas.save(); 

我得到它的工作通过这样做 -

cs = Bitmap.createBitmap(c.getWidth(), c.getHeight(), Bitmap.Config.ARGB_8888); 

    Canvas comboImage = new Canvas(cs); 

    comboImage.drawBitmap(s, new Matrix(), null); 
    comboImage.drawBitmap(c, new Matrix(), null); 
    comboImage.save(); 
    // this is an extra bit I added, just incase you want to save the new 
    // image somewhere and then return the location 

    String tmpImg = String.valueOf(System.currentTimeMillis()) + ".png"; 

    OutputStream os = null; 
    try { 
     os = new FileOutputStream("/sdcard/" + tmpImg); 
     cs.compress(CompressFormat.PNG, 100, os); 
    } catch (IOException e) { 
     Log.e("combineImages", "problem combining images", e); 
    } 

基本上，它在这里给出 - http://www.jondev.net/articles/Combining_2_Images_in_Android_using_Canvas

Answer 1

使用canvas.setBitmap(Bitmap bitmap)。这会将画布发送到指定的位图。您需要为此创建一个新的可变位图。在您致电setBitmap之后，您可以将该位图保存到文件中。

Answer 2

使用此链接.......它可能会帮助你。 https://github.com/hotveryspicy/MaskImage