@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
{
currentColorCircle = findNearestByPosition(event.getX(), event.getY());
int selectedColor = getSelectedColor();
initialColor = selectedColor;
setColorToSliders(selectedColor);
invalidate();
break;
}
case MotionEvent.ACTION_UP:
{
int selectedColor = getSelectedColor();
if (listeners != null) {
for (OnColorSelectedListener listener : listeners) {
try {
listener.onColorSelected(selectedColor);
} catch (Exception e) {
// Squash individual listener exceptions
}
}
}
setColorToSliders(selectedColor);
setColorText(selectedColor, true);
setColorPreviewColor(selectedColor);
invalidate();
break;
}
}
return true;
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouchEvent(MotionEvent event) {
getParent().requestDisallowInterceptTouchEvent(true);
// Convert coordinates to our internal coordinate system
float x = event.getX() - mTranslationOffset;
float y = event.getY() - mTranslationOffset;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// Check whether the user pressed on the pointer.
float[] pointerPosition = calculatePointerPosition(mAngle);
if (x >= (pointerPosition[0] - mColorPointerHaloRadius)
&& x <= (pointerPosition[0] + mColorPointerHaloRadius)
&& y >= (pointerPosition[1] - mColorPointerHaloRadius)
&& y <= (pointerPosition[1] + mColorPointerHaloRadius)) {
mSlopX = x - pointerPosition[0];
mSlopY = y - pointerPosition[1];
mUserIsMovingPointer = true;
invalidate();
}
// Check whether the user pressed on the center.
else if (x >= -mColorCenterRadius
&& x <= mColorCenterRadius
&& y >= -mColorCenterRadius
&& y <= mColorCenterRadius
&& mShowCenterOldColor) {
mCenterHaloPaint.setAlpha(0x50);
setColor(getOldCenterColor());
invalidate();
}
// Check whether the user pressed anywhere on the wheel.
else if (Math.sqrt(x * x + y * y) <= mColorWheelRadius + mColorPointerHaloRadius
&& Math.sqrt(x * x + y * y) >= mColorWheelRadius - mColorPointerHaloRadius
&& mTouchAnywhereOnColorWheelEnabled) {
mUserIsMovingPointer = true;
invalidate();
}
// If user did not press pointer or center, report event not handled
else {
getParent().requestDisallowInterceptTouchEvent(false);
return false;
}
break;
case MotionEvent.ACTION_MOVE:
if (mUserIsMovingPointer) {
mAngle = (float) Math.atan2(y - mSlopY, x - mSlopX);
mPointerColor.setColor(calculateColor(mAngle));
setNewCenterColor(mCenterNewColor = calculateColor(mAngle));
if (mSVbar != null) {
mSVbar.setColor(mColor);
}
invalidate();
}
// If user did not press pointer or center, report event not handled
else {
getParent().requestDisallowInterceptTouchEvent(false);
return false;
}
break;
case MotionEvent.ACTION_UP:
mUserIsMovingPointer = false;
mCenterHaloPaint.setAlpha(0x00);
if (onColorSelectedListener != null && mCenterNewColor != oldSelectedListenerColor) {
onColorSelectedListener.onColorSelected(mCenterNewColor);
oldSelectedListenerColor = mCenterNewColor;
}
invalidate();
break;
case MotionEvent.ACTION_CANCEL:
if (onColorSelectedListener != null && mCenterNewColor != oldSelectedListenerColor) {
onColorSelectedListener.onColorSelected(mCenterNewColor);
oldSelectedListenerColor = mCenterNewColor;
}
break;
}
return true;
}
@Override
public void onClick(View v) {
if (mOnColorSelectedListener != null) {
mOnColorSelectedListener.onColorSelected(mColor);
}
}
