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Slider: added start tracking and stop tracking events #362

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Slider: added start tracking and stop tracking events #362

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6 changes: 6 additions & 0 deletions material/src/main/java/com/rey/material/widget/Slider.java
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Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,10 @@ public interface OnPositionChangeListener{
* @param newValue The new value.
*/
public void onPositionChanged(Slider view, boolean fromUser, float oldPos, float newPos, int oldValue, int newValue);

public void onStartTrackingTouch(Slider view);

public void onStopTrackingTouch(Slider view);
}

private OnPositionChangeListener mOnPositionChangeListener;
Expand Down Expand Up @@ -701,6 +705,7 @@ public boolean onTouchEvent(@NonNull MotionEvent event) {

switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mOnPositionChangeListener.onStartTrackingTouch(this);
mIsDragging = isThumbHit(x, y, mThumbRadius) && !mThumbMoveAnimator.isRunning();
mMemoPoint.set(x, y);
if(mIsDragging) {
Expand All @@ -726,6 +731,7 @@ public boolean onTouchEvent(@NonNull MotionEvent event) {
}
break;
case MotionEvent.ACTION_UP:
mOnPositionChangeListener.onStopTrackingTouch(this);
if(mIsDragging) {
mIsDragging = false;
setPosition(getPosition(), true, true, true);
Expand Down