Example usage for android.widget ScrollView getChildAt

Introduction

In this page you can find the example usage for android.widget ScrollView getChildAt.

Prototype

public View getChildAt(int index) 

Source Link

Document

Returns the view at the specified position in the group.

Usage

From source file:com.recyclerviewpulldownrefresh.view.refresh.AbPullToRefreshView.java

/**
 * ??/*from   w  w  w.  ja  v a2 s.  c om*/
 *
 * @return
 */
public boolean canChildScrollDown() {
    if (!mEnableLoadMore) {
        return false;
    }
    if (mTarget instanceof AdapterView<?>) {
        AdapterView<?> absListView = (AdapterView<?>) mTarget;
        View lastChild = absListView.getChildAt(absListView.getChildCount() - 1);
        if (lastChild == null) {
            return true;
        }
        // ??viewBottom?ViewmAdapterView?view,
        // ViewmAdapterView??
        if (lastChild.getBottom() <= getHeight()
                && absListView.getLastVisiblePosition() == absListView.getCount() - 1) {
            return true;
        }
    } else if (mTarget instanceof WebView) {
        WebView webview = (WebView) mTarget;
        return webview.getContentHeight() * webview.getScale() <= webview.getHeight() + webview.getScrollY();
    } else if (mTarget instanceof ScrollView) {
        ScrollView scrollView = (ScrollView) mTarget;
        View childView = scrollView.getChildAt(0);
        if (childView != null) {
            return childView.getMeasuredHeight() <= getHeight() + mScrollView.getScrollY();
        }
    } else if (mTarget instanceof RecyclerView) {
        int lastVisiblePosition = 0;
        View childView = null;

        RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();

        if (layoutManager instanceof LinearLayoutManager) {
            lastVisiblePosition = ((LinearLayoutManager) layoutManager).findLastVisibleItemPosition();
            childView = layoutManager.findViewByPosition(lastVisiblePosition);
        } else if (layoutManager instanceof GridLayoutManager) {
            lastVisiblePosition = ((GridLayoutManager) layoutManager).findLastVisibleItemPosition();
            childView = layoutManager.findViewByPosition(lastVisiblePosition);
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            int[] spanPosition = new int[((StaggeredGridLayoutManager) layoutManager).getSpanCount()];
            ((StaggeredGridLayoutManager) layoutManager).findLastVisibleItemPositions(spanPosition);
            lastVisiblePosition = getLastVisibleItemPosition(spanPosition);
            childView = getLastVisibleItemBottomView(layoutManager, spanPosition, lastVisiblePosition);
        }
        if (null == childView) {
            return false;
        }

        if (lastVisiblePosition == layoutManager.getItemCount() - 1 && childView.getBottom()
                + layoutManager.getBottomDecorationHeight(childView) <= mTarget.getBottom()) {
            return true;
        }
    } else {
        return ViewCompat.canScrollVertically(mTarget, 1);
    }
    return false;
}

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From source file:de.mkrtchyan.recoverytools.RecoveryTools.java

private void showFlashRecoveryDialog() {
    final Dialog FlashRecoveryDialog = new Dialog(mContext);
    LayoutInflater inflater = getLayoutInflater();
    FlashRecoveryDialog.setTitle(R.string.flash_options);
    try {//from  w w  w  .  jav a2s.c  o m
        final ScrollView RecoveryLayout = (ScrollView) inflater.inflate(R.layout.recovery_dialog, null);
        LinearLayout layout = (LinearLayout) RecoveryLayout.getChildAt(0);

        FlashRecoveryDialog.setContentView(RecoveryLayout);
        if (!mDevice.isCwmSupported()) {
            layout.removeView(FlashRecoveryDialog.findViewById(R.id.bCWM));
        }
        if (!mDevice.isTwrpSupported()) {
            layout.removeView(FlashRecoveryDialog.findViewById(R.id.bTWRP));
        }
        if (!mDevice.isPhilzSupported()) {
            layout.removeView(FlashRecoveryDialog.findViewById(R.id.bPHILZ));
        }

        FlashRecoveryDialog.show();
    } catch (NullPointerException e) {
        Notifyer.showExceptionToast(mContext, TAG, e);
    }
}

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From source file:org.catrobat.paintroid.ui.BottomBar.java

private void startBottomBarAnimation() {
    final HorizontalScrollView horizontalScrollView = (HorizontalScrollView) mMainActivity
            .findViewById(R.id.bottom_bar_scroll_view);
    final ScrollView verticalScrollView = (ScrollView) mMainActivity
            .findViewById(R.id.bottom_bar_landscape_scroll_view);
    final int animationDuration = 1000;
    int orientation = mMainActivity.getResources().getConfiguration().orientation;
    if (orientation == Configuration.ORIENTATION_PORTRAIT) {
        horizontalScrollView.post(new Runnable() {
            public void run() {
                int scrollToX = (int) (getToolButtonByToolType(mCurrentToolType).getX()
                        - horizontalScrollView.getWidth() / 2.0f
                        + mMainActivity.getResources().getDimension(R.dimen.bottom_bar_button_width) / 2.0f);
                int scrollFromX = PaintroidApplication.isRTL ? horizontalScrollView.getChildAt(0).getLeft()
                        : horizontalScrollView.getChildAt(0).getRight();
                horizontalScrollView.setScrollX(scrollFromX);
                ObjectAnimator.ofInt(horizontalScrollView, "scrollX", scrollToX).setDuration(animationDuration)
                        .start();//from  ww  w . j a v  a2 s.  c o m
            }
        });
    } else if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
        verticalScrollView.post(new Runnable() {
            public void run() {
                int scrollToY = (int) (getToolButtonByToolType(mCurrentToolType).getY()
                        - verticalScrollView.getHeight() / 2.0f
                        + mMainActivity.getResources().getDimension(R.dimen.bottom_bar_landscape_button_height)
                                / 2.0f);
                int scrollFromY = verticalScrollView.getChildAt(0).getBottom();
                verticalScrollView.setScrollY(scrollFromY);
                ObjectAnimator.ofInt(verticalScrollView, "scrollY", scrollToY).setDuration(animationDuration)
                        .start();
            }
        });
    }

    delayedAnimateSelectedTool(animationDuration);
}

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