尝试使用java android canvas.drawImage镜像图片
我在尝试使用java android canvas.drawImage旋转图片时遇到问题。我正在做一个小游戏,我正在使用drawImage功能在屏幕上绘制不同的图片。不过现在我想旋转一些小图像,为此我创建了一个名为DrawMirrorImage的函数。然而,现在这些小图像不再出现在同一个地方 这是我的密码:尝试使用java android canvas.drawImage镜像图片,java,android,android-canvas,drawimage,mirror,Java,Android,Android Canvas,Drawimage,Mirror,我在尝试使用java android canvas.drawImage旋转图片时遇到问题。我正在做一个小游戏,我正在使用drawImage功能在屏幕上绘制不同的图片。不过现在我想旋转一些小图像,为此我创建了一个名为DrawMirrorImage的函数。然而,现在这些小图像不再出现在同一个地方 这是我的密码: public void drawImage(Image Image, int x, int y) { canvas.drawBitmap(((AndroidImage) Image)
public void drawImage(Image Image, int x, int y) {
canvas.drawBitmap(((AndroidImage) Image).bitmap, x, y, null);
}
public void drawMirroredImage(Image Image, int x, int y) {
canvas.save();
canvas.scale(-1.0f, 1.0f);
canvas.drawBitmap(((AndroidImage) Image).bitmap, x - canvas.getWidth(), y, null);
canvas.restore();
}
有人知道我做错了什么吗
非常感谢您的帮助以下内容适合您。 我在某处找到它,但不记得在哪里
public static Bitmap getReflectionedBitmap(Context context,int resourceId,Bitmap originalImage,int reflectionGap) {
if(originalImage==null)
originalImage = BitmapFactory.decodeResource(context.getResources(),resourceId);
int width = originalImage.getWidth();
int height = originalImage.getHeight();
// This will not scale but will flip on the Y axis
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
// Create a Bitmap with the flip matix applied to it.
// We only want the bottom half of the image
Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,
height / 2, width, height / 2, matrix, false);
// Create a new bitmap with same width but taller to fit reflection
Bitmap bitmapWithReflection = Bitmap.createBitmap(width,
(height + height / 2), Config.ARGB_8888);
// Create a new Canvas with the bitmap that's big enough for
// the image plus gap plus reflection
Canvas canvas = new Canvas(bitmapWithReflection);
// Draw in the original image
canvas.drawBitmap(originalImage, 0, 0, null);
// Draw in the gap
Paint deafaultPaint = new Paint();
deafaultPaint.setColor(0xffffffff);
canvas.drawRect(0, height, width, height + reflectionGap , deafaultPaint);
canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);
Paint paint = new Paint();
LinearGradient shader = new LinearGradient(0,
originalImage.getHeight(), 0, bitmapWithReflection.getHeight()
+ reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);
// Set the paint to use this shader (linear gradient)
paint.setShader(shader);
// Set the Transfer mode to be porter duff and destination in
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
canvas.drawRect(0, height, width, bitmapWithReflection.getHeight()
+ reflectionGap, paint);
return bitmapWithReflection;
}
我对代码片段进行了一些调整,以便将其与资源图像一起使用
如果要在资源中为图像创建反射,请将
null
作为参数传递到Bitmap
你是想展示那张照片的倒影吗…?是的,Puru,这就是我想要的>_