android 颜色填充工具,Android绘图填充工具

我正在为

Android制作一个绘图应用程序,我需要一些帮助添加填充工具.

我希望该工具能够填充填充,并且在Microsoft Paint中表现得像在手机上一样.

我有一个自定义视图,在画布上绘制路径.我为不同的笔和画笔绘制了不同的路径,我允许用户选择线条粗细和颜色.

当我做：

paint.setStyle(Paint.Style.FILL);

而且我画画,我没有得到我想要的填充.

我已经得到了一些使用“Flood Fill Algorithm”的建议,但我无法弄清楚如何在我的代码中实现它.

我在哪里可以看到我想要做的一个例子？有没有人有示例代码向我展示如何使用我的android视图使该工具工作？

编辑：

CartoonView.java：

public class CartoonView extends View {

ArrayList paints = new ArrayList();

ArrayList paths = new ArrayList();

int color;

int thickness;

boolean pencilSelected;

public boolean isPencilSelected() {

return pencilSelected;

}

public void setPencilSelected(boolean pencilSelected) {

this.pencilSelected = pencilSelected;

}

public ArrayList getPaints() {

return paints;

}

public void setPaints(ArrayList paints) {

this.paints = paints;

}

public ArrayList getPaths() {

return paths;

}

public void setPaths(ArrayList paths) {

this.paths = paths;

}

public int getThickness() {

return thickness;

}

public int getColor() {

return color;

}

public CartoonView(Context context, AttributeSet attrs) {

super(context, attrs);

color = Color.BLACK;

thickness = 3;

pencilSelected = true;

createPaint();

}

@Override

protected void onDraw(Canvas canvas) {

for (Path path : paths) {

canvas.drawPath(path, paints.get(paths.indexOf(path)));

}

}

public void setPaintColor(int newColor) {

color = newColor;

createPaint();

}

public void setPaintThickness(int newThickness) {

thickness = newThickness;

createPaint();

}

@Override

public boolean onTouchEvent(MotionEvent event) {

if (this.isEnabled()) {

Path path;

if (paths.size() == 0) {

path = new Path();

Paint paint = new Paint();

paint.setAntiAlias(true);

paint.setStrokeWidth(5f);

paint.setStyle(Paint.Style.STROKE);

paint.setStrokeJoin(Paint.Join.ROUND);

paint.setColor(color);

paint.setStrokeWidth(thickness);

thickness = (int) paint.getStrokeWidth();

paths.add(path);

paints.add(paint);

} else {

path = paths.get(paths.size() - 1);

}

float eventX = event.getX();

float eventY = event.getY();

switch (event.getAction()) {

case MotionEvent.ACTION_DOWN:

path.moveTo(eventX, eventY);

return true;

case MotionEvent.ACTION_MOVE:

path.lineTo(eventX, eventY);

break;

default:

return true;

}

invalidate();

}

return true;

}

public void createPaint() {

Path path = new Path();

Paint paint = new Paint();

paint.setAntiAlias(true);

paint.setStrokeWidth(5f);

paint.setStyle(Paint.Style.STROKE);

paint.setStrokeJoin(Paint.Join.ROUND);

paint.setColor(color);

paint.setStrokeWidth(thickness);

paths.add(path);

paints.add(paint);

}

public void clearView(){

paths.clear();

paints.clear();

invalidate();

}

}