如何垂直放置位图

Question

我从用户xil3那里得到了一些代码，它在水平方向上合并位图。有人知道我怎样才能把它变成垂直的吗？

public Bitmap combineImages(Bitmap c, Bitmap s, String loc) { // can add a 3rd parameter 'String loc' if you want to save the new image - left some code to do that at the bottom
Bitmap cs = null;
int width, height = 0;
if (c.getHeight() > s.getHeight()) {
width = c.getWidth() + s.getWidth();
height = c.getHeight();
} else {
width = c.getWidth() + s.getWidth();
height = s.getHeight();
}
cs = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444);
Canvas comboImage = new Canvas(cs);
comboImage.drawBitmap(c, 0f, 0f, null);
comboImage.drawBitmap(s, c.getHeight(), 0f, null);
// 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(loc + tmpImg);
cs.compress(Bitmap.CompressFormat.PNG, 100, os);
} catch (IOException e) {
Log.e("combineImages", "problem combining images", e);
}
return cs;
}

Answer 1

我最终在这里找到了一段垂直保存它们的新代码-

private Bitmap mergeMultiple(ArrayList<Bitmap> parts) {
int w = 0, h = 0;
for (int i = 0; i < parts.size(); i++) {
if (i < parts.size() - 1) {
w = parts.get(i).getWidth() > parts.get(i + 1).getWidth() ? parts.get(i).getWidth() : parts.get(i + 1).getWidth();
}
h += parts.get(i).getHeight();
}
Bitmap temp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(temp);
Paint paint = new Paint();
paint.setColor(Color.WHITE);
int top = 0;
for (int i = 0; i < parts.size(); i++) {
top = (i == 0 ? 0 : top + parts.get(i).getHeight() + 100);
canvas.drawBitmap(parts.get(i), 0f, top,paint );
}
return temp;
}