这是我拥有的 onDraw 方法:
protected void onDraw(Canvas canvas) {
canvas.drawBitmap(bitmap, 0, 0, mBitmapPaint); // Deseneaza Bitmapul mutabil
if (shapes.size() > 0) {
for (ShapeFromLines shapesfromline : shapes) {
if (shapesfromline.size() > 1) {
LogService.log("", "shapes: " + shapesfromline.size());
float startx, starty;
startx = shapesfromline.get(0).stopX;
starty = shapesfromline.get(0).stopY;
for (int i = 1; i < shapesfromline.size(); i++) {
LogService.log("", "----size color in ondraw: " + shapesfromline.get(i).getPaint().getColor());
canvas.drawLine(startx, starty, shapesfromline.get(i).getStopX(), shapesfromline.get(i).stopY, shapesfromline.get(i).getPaint());
LogService.log("", "shapes: drawn");
startx = shapesfromline.get(i).stopX;
starty = shapesfromline.get(i).stopY;
}
}
}
}
for (int i = 0; i < bitmaps.size(); i++) {
if ((bitmaps.get(i).bitmap != null)) {
canvas.save();
canvas.rotate(bitmaps.get(i).rectrotateVal, bitmaps.get(i).pX + (bitmaps.get(i).bitmap.getWidth() / 2), bitmaps.get(i).pY + (bitmaps.get(i).bitmap.getHeight() / 2));
mBitmapPaint.setAlpha(bitmaps.get(i).alpha);
// canvas.drawRect(bitmaps.get(i).rect, cPaint);
canvas.drawBitmap(bitmaps.get(i).bitmap, bitmaps.get(i).pX, bitmaps.get(i).pY, mBitmapPaint);
canvas.restore();
}
}
mBitmapPaint.setAlpha(255);
canvas.drawPath(mPath, paint);
}
}
我可以有一些形状(每个形状都是从名为 ShapesFromLines 的点的数组列表创建的。现在我的形状的第一个点来自 touchDown(ontouchevent),我保存当前位置。然后其他点保存在触摸向上。当你第一次按下屏幕时,它会画一个点,然后第二次,它会连接这 2 个点,然后是 3 个等。我保存每个点的 X、Y 和 Paint。如您所见,我有一个绘制日志服务,它返回这些点的绘制值。现在我有一个带有颜色选择器的函数,可以改变当前路径的颜色。但这设法改变了我所有直线的颜色。现在我检查了,当我要添加图片时,主绘制设置为透明。然后线条是透明的,但点(应该连接的)具有正确的颜色。知道有什么问题吗?