그림판 만들고 있습니다. 어디서 퍼와서 기능 추가하고있지만
색깔 바꾸는게 잘 안되네요..
버튼 클릭했을때 mPaint.setColor(Color.RED) 로 색깔을 바꿀려고했는데
기존에 그렸던거 까지 전부 바껴 버리네요..
어떻게 하면좋을까요?? ㅠㅠ
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mCtx = this;
setContentView(R.layout.crash_create_map);
.........
.........
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
//mPaint.setColor(0xFFFFFF00);
mPaint.setColor(Color.BLACK);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(8);
}
public class MyView extends View {
private static final float MINP = 0.25f;
private static final float MAXP = 0.75f;
private Bitmap mBitmap;
Bitmap bm;
private Canvas mCanvas;
// private Path mPath;
private Paint mBitmapPaint;
public MyView(Context context) {
super(context);
// bm = BitmapFactory.decodeResource(getResources(), // 배경 비트맵
// R.drawable.device4_hit_17);
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);
// Matrix matrix;
// mCanvas.setBitmap(bm);
// mCanvas.drawBitmap(bm, matrix, 0xFFFFFFFF);
//mCanvas.drawColor(0xFFFFFFFF); // backgroundcolor
mCanvas.drawColor(Color.WHITE);
}
protected void onDraw(Canvas canvas) {
// canvas.drawColor(0x00000000);
//canvas.drawBitmap(bm, 0, 0, mBitmapPaint); // 배경바꾸기
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) {
int action = event.getAction();
float x = event.getX();
float y = event.getY();
drawPoint p = new drawPoint(x, y, false);
switch (action) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
break;
case MotionEvent.ACTION_MOVE:
touch_move(x, y);
break;
case MotionEvent.ACTION_UP:
touch_up();
break;
}
invalidate();
return true;
}
}
public class drawPoint {
private float x;
private float y;
private boolean draw;
public drawPoint(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;
}
}
@Override
public void onClick(View v) {
...........
mPaint.setColor(Color.RED);
.............
}
