我正在开发一个Android分布式应用程序。我已经将一张图片分成4个部分进行处理。现在我想将这四个位图图像合并成一张图片。我该如何做呢?
Bitmap[] parts = new Bitmap[4];
Bitmap result = Bitmap.createBitmap(parts[0].getWidth() * 2, parts[0].getHeight() * 2, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
Paint paint = new Paint();
for (int i = 0; i < parts.length; i++) {
canvas.drawBitmap(parts[i], parts[i].getWidth() * (i % 2), parts[i].getHeight() * (i / 2), paint);
}
类似这样=)
下面的代码片段可以帮助您将四个位图合并为一个。
调用此方法3次以组合这四个图像。
步骤1:合并前两个图像
步骤2:合并剩余的两个图像
步骤3:组合两个新创建的位图
public static Bitmap overlay(Bitmap bmp1, Bitmap bmp2) {
Bitmap bmOverlay = Bitmap.createBitmap(bmp1.getWidth(), bmp1.getHeight(), bmp1.getConfig());
Canvas canvas = new Canvas(bmOverlay);
canvas.drawBitmap(bmp1, new Matrix(), null);
canvas.drawBitmap(bmp2, 0, 0, null);
return bmOverlay;
}
private Bitmap mergeMultiple(Bitmap[] parts){
Bitmap result = Bitmap.createBitmap(parts[0].getWidth() * 2, parts[0].getHeight() * 2, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
Paint paint = new Paint();
for (int i = 0; i < parts.length; i++) {
canvas.drawBitmap(parts[i], parts[i].getWidth() * (i % 2), parts[i].getHeight() * (i / 2), paint);
}
return result;
}