小编Num*_*air的帖子

我想合并两个位图,这是我的代码

// Camera arg conversion to Bitmap
                    Bitmap cameraBitmap = BitmapFactory.decodeByteArray(arg0, 0,
                            arg0.length);
                    Bitmap back = Bitmap.createBitmap(cameraBitmap.getWidth(),
                        cameraBitmap.getHeight(), Bitmap.Config.ARGB_8888);
                    Canvas cam = new Canvas(back);
                    cam.drawBitmap(cameraBitmap, matrix, null);


                    // FrameLayout to Bitmap
                    FrameLayout mainLayout = (FrameLayout) findViewById(R.id.frame);
                    Bitmap foreground = Bitmap.createBitmap(mainLayout.getWidth(),
                            mainLayout.getHeight(), Bitmap.Config.ARGB_8888);
                    Canvas c = new Canvas(foreground);
                    mainLayout.draw(c);

                    Bitmap cs = null;
                    cs = Bitmap.createBitmap(foreground.getWidth(), cameraBitmap.getHeight(), Bitmap.Config.ARGB_8888); 

                    Canvas comboImage = new Canvas(cs); 
                    comboImage.drawBitmap(cameraBitmap, 0f, 0f, null); 
                    comboImage.drawBitmap(foreground, 0f, cameraBitmap.getHeight(), null); 

                    FileOutputStream fos = null;
                    try {
                        fos = new FileOutputStream(file); …

我正在使用以下代码保存图像

        FrameLayout mainLayout = (FrameLayout) findViewById(R.id.frame);
            //  File root = Environment.getExternalStorageDirectory();
            //  File file = new File(root, "androidlife.jpg");
//              File file = new File(Environment.getExternalStorageDirectory()
//                        + File.separator + "/test.jpg");
                Random fCount = new Random();
                // for (int i = 0; i < 10; i++) { Comment by Lucifer
                  int roll = fCount.nextInt(600) + 1;
                  //System.out.println(roll);


                File file = new File(Environment.getExternalStorageDirectory()
                        + File.separator + "/test" + String.valueOf(roll) +".jpg" );

                Bitmap b = Bitmap.createBitmap(mainLayout.getWidth(),
                        mainLayout.getHeight(), Bitmap.Config.ARGB_8888);
                Canvas c = new Canvas(b);
                mainLayout.draw(c); …