private void updateTint() { if (tint == null) tint = new TintPrimaryColorStateList(getContext()); int color = tint.getColorForState(getDrawableState(), tint.getDefaultColor()); if (leftGlow != null) leftGlow.setColor(color); if (rightGlow != null) rightGlow.setColor(color); postInvalidate(); }
@Override public boolean dispatchTouchEvent(@NonNull MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_MOVE: float deltaX = prevX - ev.getX(); if (!drag && Math.abs(deltaX) > mTouchSlop) { final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } drag = true; if (deltaX > 0) { deltaX -= mTouchSlop; } else { deltaX += mTouchSlop; } } if (drag) { final int oldX = getScrollX(); final int range = getScrollRange(); boolean canOverscroll = overscrollMode == OVER_SCROLL_ALWAYS || (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0); if (canOverscroll) { float pulledToY = oldX + deltaX; if (pulledToY < 0) { leftGlow.onPull(deltaX / getWidth(), 1.f - ev.getY() / getHeight()); if (!rightGlow.isFinished()) rightGlow.onRelease(); } else if (pulledToY > range) { rightGlow.onPull(deltaX / getWidth(), ev.getY() / getHeight()); if (!leftGlow.isFinished()) leftGlow.onRelease(); } if (leftGlow != null && (!leftGlow.isFinished() || !rightGlow.isFinished())) postInvalidate(); } } break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: if (drag) { drag = false; if (leftGlow != null) { leftGlow.onRelease(); rightGlow.onRelease(); } } break; } prevX = ev.getX(); return super.dispatchTouchEvent(ev); }
@Override public void draw(@NonNull Canvas canvas) { super.draw(canvas); if (leftGlow != null) { final int scrollX = getScrollX(); if (!leftGlow.isFinished()) { final int restoreCount = canvas.save(); final int height = getHeight() - getPaddingTop() - getPaddingBottom(); canvas.rotate(270); canvas.translate(-height + getPaddingTop(), Math.min(0, scrollX)); leftGlow.setSize(height, getWidth()); if (leftGlow.draw(canvas)) { postInvalidate(); } canvas.restoreToCount(restoreCount); } if (!rightGlow.isFinished()) { final int restoreCount = canvas.save(); final int width = getWidth(); final int height = getHeight() - getPaddingTop() - getPaddingBottom(); canvas.rotate(90); canvas.translate(-getPaddingTop(), -(Math.max(getScrollRange(), scrollX) + width)); rightGlow.setSize(height, width); if (rightGlow.draw(canvas)) { postInvalidate(); } canvas.restoreToCount(restoreCount); } } }
private void updateTint() { if (tint == null) return; int color = tint.getColorForState(getDrawableState(), tint.getDefaultColor()); if (leftGlow != null) leftGlow.setColor(color); if (rightGlow != null) rightGlow.setColor(color); }