Examples with NestedScrollView android.support.v4.widget.NestedScrollView used on opensource projects

Example 21 with NestedScrollView

use of android.support.v4.widget.NestedScrollView in project CustomViews by AndroidStudy233.

the class BackdropBottomSheetBehavior method getBottomSheetBehavior.

/**
 * Look into the CoordiantorLayout for the {@link BottomSheetBehaviorGoogleMapsLike}
 * @param coordinatorLayout with app:layout_behavior= {@link BottomSheetBehaviorGoogleMapsLike}
 */
private void getBottomSheetBehavior(@NonNull CoordinatorLayout coordinatorLayout) {
    for (int i = 0; i < coordinatorLayout.getChildCount(); i++) {
        View child = coordinatorLayout.getChildAt(i);
        if (child instanceof NestedScrollView) {
            try {
                BottomSheetBehaviorGoogleMapsLike temp = BottomSheetBehaviorGoogleMapsLike.from(child);
                mBottomSheetBehaviorRef = new WeakReference<>(temp);
                break;
            } catch (IllegalArgumentException e) {
            }
        }
    }
}

Example 22 with NestedScrollView

use of android.support.v4.widget.NestedScrollView in project materialistic by hidroh.

the class WebFragmentTest method testScrollToTop.

@Config(shadows = ShadowNestedScrollView.class)
@Test
public void testScrollToTop() {
    NestedScrollView scrollView = (NestedScrollView) activity.findViewById(R.id.nested_scroll_view);
    scrollView.smoothScrollTo(0, 1);
    assertThat(customShadowOf(scrollView).getSmoothScrollY()).isEqualTo(1);
    activity.fragment.scrollToTop();
    assertThat(customShadowOf(scrollView).getSmoothScrollY()).isEqualTo(0);
}

Example 23 with NestedScrollView

use of android.support.v4.widget.NestedScrollView in project android-advancedrecyclerview by h6ah4i.

the class RecyclerViewDragDropManager method handleScrollOnDraggingInternalWithNestedScrollView.

private void handleScrollOnDraggingInternalWithNestedScrollView(RecyclerView rv, boolean horizontal) {
    NestedScrollView nestedScrollView = mNestedScrollView;
    int nestedScrollViewScrollOffsetX = nestedScrollView.getScrollX();
    int nestedScrollViewScrollOffsetY = nestedScrollView.getScrollY();
    Rect rect = new Rect();
    rect.left = rect.right = getLastTouchX();
    rect.top = rect.bottom = getLastTouchY();
    offsetDescendantRectToAncestorCoords(mRecyclerView, nestedScrollView, rect);
    int nestedScrollViewTouchX = rect.left - nestedScrollViewScrollOffsetX;
    int nestedScrollViewTouchY = rect.top - nestedScrollViewScrollOffsetY;
    final int edge = (horizontal) ? nestedScrollView.getWidth() : nestedScrollView.getHeight();
    final float invEdge = (1.0f / edge);
    final float normalizedTouchPos = (horizontal ? nestedScrollViewTouchX : nestedScrollViewTouchY) * invEdge;
    final float threshold = SCROLL_THRESHOLD;
    final float invThreshold = (1.0f / threshold);
    final float centerOffset = normalizedTouchPos - 0.5f;
    final float absCenterOffset = Math.abs(centerOffset);
    final float acceleration = Math.max(0.0f, threshold - (0.5f - absCenterOffset)) * invThreshold;
    final int mask = mScrollDirMask;
    int scrollAmount = (int) Math.signum(centerOffset) * (int) (SCROLL_AMOUNT_COEFF * mDragEdgeScrollSpeed * mDisplayDensity * acceleration + 0.5f);
    // apply mask
    if (scrollAmount > 0) {
        if ((mask & (horizontal ? SCROLL_DIR_RIGHT : SCROLL_DIR_DOWN)) == 0) {
            scrollAmount = 0;
        }
    } else if (scrollAmount < 0) {
        if ((mask & (horizontal ? SCROLL_DIR_LEFT : SCROLL_DIR_UP)) == 0) {
            scrollAmount = 0;
        }
    }
    // scroll
    if (scrollAmount != 0) {
        safeEndAnimationsIfRequired(rv);
        if (horizontal) {
            nestedScrollView.scrollBy(scrollAmount, 0);
        } else {
            nestedScrollView.scrollBy(0, scrollAmount);
        }
    }
    final boolean updated = mDraggingItemDecorator.update(getLastTouchX(), getLastTouchY(), false);
    if (updated) {
        if (mSwapTargetItemOperator != null) {
            mSwapTargetItemOperator.update(mDraggingItemDecorator.getDraggingItemTranslationX(), mDraggingItemDecorator.getDraggingItemTranslationY());
        }
        // check swapping
        checkItemSwapping(rv);
        onItemMoveDistanceUpdated();
    }
}

Example 24 with NestedScrollView

use of android.support.v4.widget.NestedScrollView in project material-components-android by material-components.

the class BottomSheetBehaviorTest method testNestedScroll.

@Test
@MediumTest
public void testNestedScroll() throws Throwable {
    final ViewGroup bottomSheet = getBottomSheet();
    final BottomSheetBehavior behavior = getBehavior();
    final NestedScrollView scroll = new NestedScrollView(activityTestRule.getActivity());
    // Set up nested scrolling area
    activityTestRule.runOnUiThread(new Runnable() {

        @Override
        public void run() {
            bottomSheet.addView(scroll, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
            TextView view = new TextView(activityTestRule.getActivity());
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < 500; ++i) {
                sb.append("It is fine today. ");
            }
            view.setText(sb);
            view.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                // Do nothing
                }
            });
            scroll.addView(view);
            assertThat(behavior.getState(), is(BottomSheetBehavior.STATE_COLLAPSED));
            // The scroll offset is 0 at first
            assertThat(scroll.getScrollY(), is(0));
        }
    });
    // Swipe from the very bottom of the bottom sheet to the top edge of the screen so that the
    // scrolling content is also scrolled
    Espresso.onView(ViewMatchers.withId(R.id.coordinator)).perform(new GeneralSwipeAction(Swipe.SLOW, new CoordinatesProvider() {

        @Override
        public float[] calculateCoordinates(View view) {
            return new float[] { view.getWidth() / 2, view.getHeight() - 1 };
        }
    }, new CoordinatesProvider() {

        @Override
        public float[] calculateCoordinates(View view) {
            return new float[] { view.getWidth() / 2, 1 };
        }
    }, Press.FINGER));
    registerIdlingResourceCallback();
    try {
        Espresso.onView(ViewMatchers.withId(R.id.bottom_sheet)).check(ViewAssertions.matches(ViewMatchers.isDisplayed()));
        activityTestRule.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                assertThat(behavior.getState(), is(BottomSheetBehavior.STATE_EXPANDED));
                // This confirms that the nested scrolling area was scrolled continuously after
                // the bottom sheet is expanded.
                assertThat(scroll.getScrollY(), is(not(0)));
            }
        });
    } finally {
        unregisterIdlingResourceCallback();
    }
}

Example 25 with NestedScrollView

use of android.support.v4.widget.NestedScrollView in project materialistic by hidroh.

the class ReadabilityFragmentTest method testScrollToTop.

@Config(shadows = ShadowNestedScrollView.class)
@Test
public void testScrollToTop() {
    NestedScrollView scrollView = (NestedScrollView) activity.findViewById(R.id.nested_scroll_view);
    scrollView.smoothScrollTo(0, 1);
    assertThat(customShadowOf(scrollView).getSmoothScrollY()).isEqualTo(1);
    fragment.scrollToTop();
    assertThat(customShadowOf(scrollView).getSmoothScrollY()).isEqualTo(0);
    controller.pause().stop().destroy();
}