public class DrawingActivity extends Activity{
LinearLayout drawArea;
LinearLayout buttonList;
Button MenuOpenButton;
Button MenuCloseButton;
private Paint mPaint;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new MyView(this));
mPaint = new Paint();
mPaint.setColor(Color.BLACK); //색
mPaint.setAntiAlias(true); //테두리 부르럽게
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(12);
}
public class drawPaint{
private float x;
private float y;
private boolean draw;
public drawPaint(float x,float y,boolean d){
this.x=x;
this.y=y;
draw=d;
}
public boolean getDraw(){
return draw;
}
public void setDraw(boolean _draw){draw=_draw;}
public float getX(){return x;}
public float getY(){return y;}
}
public class MyView extends View {
private Bitmap mBitmap;
private Canvas mCanvas;
private Path mPath;
private Paint mBitmapPaint;
public MyView(Context context) {
super(context);
DisplayMetrics metrics=new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mBitmap=Bitmap.createBitmap(metrics.widthPixels,metrics.heightPixels,Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
mPath=new Path();
mBitmapPaint=new Paint(Paint.DITHER_FLAG);
mCanvas.drawColor(0xFFFFFFFF);
}
protected void onDraw(Canvas canvas) {
canvas.drawColor(0xFF000000); //배경색
canvas.drawBitmap(mBitmap, 0,0,mBitmapPaint);
canvas.drawPath(mPath, mPaint);
}
private float mX,mY;
private static final float TOUCH_TOLERANCE=4;
private void touch_start(float x,float y){
mPath.reset();
mPath.moveTo(x, y);
mX=x;
mY=y;
}
private void touch_move(float x,float y){
float dx=Math.abs(x-mX);
float dy=Math.abs(y-mY);
if(dx>=TOUCH_TOLERANCE || dy>=TOUCH_TOLERANCE){
mPath.quadTo(mX, mY, (x+mX)/2,(y+mY)/2);
mX=x;
mY=y;
}
}
private void touch_up(){
mPath.lineTo(mX, mY);
mCanvas.drawPath(mPath, mPaint);
mPath.reset();
}
public boolean onTouchEvent(MotionEvent event) {
float x=event.getX();
float y=event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: //눌렀을떄
touch_start(x,y);
break;
case MotionEvent.ACTION_MOVE: //움직였을떄
touch_move(x,y);
break;
case MotionEvent.ACTION_UP:
touch_up();
break;
}
invalidate();
return true;
}
}
}
자유 곡선 예제 입니다...........
어렵다우.ㅜㅜ