Example usage for android.view ViewGroup getChildAt

List of usage examples for android.view ViewGroup getChildAt

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Introduction

In this page you can find the example usage for android.view ViewGroup 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.dahl.brendan.wordsearch.view.WordSearchActivity.java

/**
 * creates a grid of textViews from layout files based on the gridSize
 *  and sets the new textViews to use the controller as their listener
 * /*from   w w  w.ja v a 2s .  c o m*/
 * @param gridSize square size of the new grid to make
 * @param controller the onkeyListener used for the grid's textViews, also holds the gridView an array of the new textView's in the grid
 */
public void setupViewGrid() {
    control.setLetter(null);
    int gridSize = control.getGridSize();
    TextViewGridController controller = control.getGridManager();
    ViewGroup gridTable = (ViewGroup) this.findViewById(R.id.gridTable);
    if (gridTable.getChildCount() != gridSize) {
        if (gridTable.getChildCount() == 0) {
            gridTable.setKeepScreenOn(true);
            gridTable.setOnTouchListener(controller);
        }
        controller.clearPointDemension();
        gridTable.removeAllViews();
        Point point = new Point();
        controller.setGridView(new TextView[gridSize][]);
        TextView[][] gridView = controller.getGridView();
        for (point.y = 0; point.y < gridSize; point.y++) {
            this.getLayoutInflater().inflate(R.layout.grid_row, gridTable, true);
            ViewGroup row = (ViewGroup) gridTable.getChildAt(point.y);
            TextView[] rowText = new TextView[gridSize];
            for (point.x = 0; point.x < gridSize; point.x++) {
                this.getLayoutInflater().inflate(R.layout.grid_text_view, row, true);
                TextView view = (TextView) row.getChildAt(point.x);
                view.setId(ConversionUtil.convertPointToID(point, control.getGridSize()));
                view.setOnKeyListener(controller);

                rowText[point.x] = view;
            }
            gridView[point.y] = rowText;
        }
        gridTable.requestLayout();
    }
}

From source file:ws.crandell.newspaperpuzzles.wordsearch.view.WordSearchActivity.java

/**
 * creates a grid of textViews from layout files based on the gridSize
 *  and sets the new textViews to use the controller as their listener
 * //from  w  w w. j  a v  a  2 s . co m
 * @param gridSize square size of the new grid to make
 * @param controller the onkeyListener used for the grid's textViews, also holds the gridView an array of the new textView's in the grid
 */
public void setupViewGrid() {
    control.setLetter(null);
    int gridSize = control.getGridSize();
    TextViewGridController controller = control.getGridManager();
    ViewGroup gridTable = (ViewGroup) this.findViewById(R.id.gridTable);
    if (gridTable.getChildCount() != gridSize) {
        if (gridTable.getChildCount() == 0) {
            gridTable.setKeepScreenOn(true);
            gridTable.setOnTouchListener(controller);
        }
        controller.clearPointDemension();
        gridTable.removeAllViews();
        Point point = new Point();
        controller.setGridView(new TextView[gridSize][]);
        TextView[][] gridView = controller.getGridView();
        for (point.y = 0; point.y < gridSize; point.y++) {
            this.getLayoutInflater().inflate(R.layout.ws_grid_row, gridTable, true);
            ViewGroup row = (ViewGroup) gridTable.getChildAt(point.y);
            TextView[] rowText = new TextView[gridSize];
            for (point.x = 0; point.x < gridSize; point.x++) {
                this.getLayoutInflater().inflate(R.layout.ws_grid_text_view, row, true);
                TextView view = (TextView) row.getChildAt(point.x);
                view.setId(ConversionUtil.convertPointToID(point, control.getGridSize()));
                view.setOnKeyListener(controller);

                rowText[point.x] = view;
            }
            gridView[point.y] = rowText;
        }
        gridTable.requestLayout();
    }
}

From source file:android.car.ui.provider.CarDrawerLayout.java

@Override
protected void onFinishInflate() {
    super.onFinishInflate();
    mHasInflated = true;/*www  . j av a2  s .  c o m*/
    setAutoDayNightMode();

    setOnGenericMotionListener(new OnGenericMotionListener() {
        @Override
        public boolean onGenericMotion(View view, MotionEvent event) {
            if (getChildCount() == 0) {
                return false;
            }
            if (isDrawerOpen()) {
                View drawerView = findDrawerView();
                ViewGroup viewGroup = (ViewGroup) ((FrameLayout) drawerView).getChildAt(0);
                return viewGroup.getChildAt(0).onGenericMotionEvent(event);
            }
            View contentView = findContentView();
            ViewGroup viewGroup = (ViewGroup) ((FrameLayout) contentView).getChildAt(0);
            return viewGroup.getChildAt(0).onGenericMotionEvent(event);
        }
    });
}

From source file:com.base.view.slidemenu.SlideMenu.java

protected final boolean canScrollVertically(View v, int dy, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup viewGroup = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();

        final int childCount = viewGroup.getChildCount();
        for (int index = 0; index < childCount; index++) {
            View child = viewGroup.getChildAt(index);
            final int left = child.getLeft();
            final int top = child.getTop();
            if (x + scrollX >= left && x + scrollX < child.getRight() && y + scrollY >= top
                    && y + scrollY < child.getBottom() && View.VISIBLE == child.getVisibility()
                    && (ScrollDetectors.canScrollVertical(child, dy)
                            || canScrollVertically(child, dy, x + scrollX - left, y + scrollY - top))) {
                return true;
            }/*from  ww  w .  j ava  2 s .co  m*/
        }
    }

    return ViewCompat.canScrollVertically(v, -dy);
}

From source file:com.base.view.slidemenu.SlideMenu.java

/**
 * Detect whether the views inside content are slidable
 *///from   w w w  .j  a  v a  2s . c om
protected final boolean canScrollHorizontally(View v, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup viewGroup = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();

        final int childCount = viewGroup.getChildCount();
        for (int index = 0; index < childCount; index++) {
            View child = viewGroup.getChildAt(index);
            final int left = child.getLeft();
            final int top = child.getTop();
            if (x + scrollX >= left && x + scrollX < child.getRight() && y + scrollY >= top
                    && y + scrollY < child.getBottom() && View.VISIBLE == child.getVisibility()
                    && (ScrollDetectors.canScrollHorizontal(child, dx)
                            || canScrollHorizontally(child, dx, x + scrollX - left, y + scrollY - top))) {
                return true;
            }
        }
    }

    return ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:ca.mymenuapp.ui.widgets.SlidingUpPanelLayout.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 *
 * @param v View to test for horizontal scrollability
 * @param checkV Whether the view v passed should itself be checked for scrollability (true),
 * or just its children (false)./*from  www  .j  a  va2 s  . c o  m*/
 * @param dx Delta scrolled in pixels
 * @param x X coordinate of the active touch point
 * @param y Y coordinate of the active touch point
 * @return true if child views of v can be scrolled by delta of dx.
 */
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance first.
        for (int i = count - 1; i >= 0; i--) {
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }
    return checkV && ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:com.ksharkapps.musicnow.ui.activities.AudioPlayerActivity.java

/**
 * Sets the font on all TextViews in the ViewGroup. Searches recursively for
 * all inner ViewGroups as well. Just add a check for any other views you
 * want to set as well (EditText, etc.)/*from w  w w .j ava2 s. c o m*/
 */
private void setFont(ViewGroup group, Typeface font) {
    int count = group.getChildCount();
    View v;
    for (int i = 0; i < count; i++) {
        v = group.getChildAt(i);
        if (v instanceof TextView || v instanceof EditText || v instanceof Button) {
            ((TextView) v).setTypeface(font);
        } else if (v instanceof ViewGroup)
            setFont((ViewGroup) v, font);
    }
}

From source file:com.tomeokin.lspush.biz.home.CollectionListAdapter.java

private void setExplorers(ViewGroup container, @Nullable List<User> explorers) {
    final Context context = container.getContext();
    // // TODO: 2016/10/8 performance improve
    //container.removeAllViews();
    //for (User explorer : explorers) {
    //    final ImageView avatar =
    //        (ImageView) LayoutInflater.from(context).inflate(R.layout.layout_item_explorer, container, false);
    //    ImageLoader.loadAvatar(context, avatar, explorer.getImage());
    //    container.addView(avatar);
    //}//from  w ww  . j  ava2s .co  m

    final int count = container.getChildCount();
    int targetCount = explorers == null ? 0 : explorers.size();
    targetCount = targetCount >= 5 ? 5 : targetCount;
    final LayoutInflater inflater = LayoutInflater.from(context);
    if (count > targetCount) {
        container.removeViews(targetCount, count - targetCount);
    }
    ImageView avatar;
    for (int i = 0; i < targetCount; i++) {
        if (i > count - 1) { // no cache
            avatar = (ImageView) inflater.inflate(R.layout.layout_item_explorer, container, false);
        } else {
            avatar = (ImageView) container.getChildAt(i);
        }
        ImageLoader.loadAvatar(context, avatar, explorers.get(i).getImage());
        if (avatar.getParent() == null) {
            container.addView(avatar);
        }
        avatar.setTag(R.id.avatar_tag_uid, explorers.get(i).getUid());
        avatar.setOnClickListener(mExplorerListener);
    }
}

From source file:com.android.yijiang.kzx.widget.tab.PagerSlidingTabStrip.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    ViewGroup tabViewGroup = getTabsLayout();

    // //from   ww w . ja  v  a  2  s . com
    if (tabViewGroup == null || tabViewGroup.getChildCount() <= 0) {
        super.onLayout(changed, l, t, r, b);
        return;
    }

    int viewWidth = r - l;

    // Item
    if ((measure(tabViewGroup).getMeasuredWidth() < viewWidth) && allowWidthFull) {
        // ?tabViewGroup??
        viewWidth -= tabViewGroup.getPaddingLeft();
        viewWidth -= tabViewGroup.getPaddingRight();
        if (tabViewGroup.getLayoutParams() instanceof MarginLayoutParams) {
            MarginLayoutParams tabsLayoutParams = (MarginLayoutParams) tabViewGroup.getLayoutParams();
            viewWidth -= tabsLayoutParams.leftMargin;
            viewWidth -= tabsLayoutParams.rightMargin;
        }

        // ??Tab?
        View tabView;
        for (int w = 0; w < tabViewGroup.getChildCount(); w++) {
            tabView = tabViewGroup.getChildAt(w);
            if (tabView.getLayoutParams() instanceof MarginLayoutParams) {
                MarginLayoutParams marginLayoutParams = (MarginLayoutParams) tabView.getLayoutParams();
                viewWidth -= marginLayoutParams.leftMargin;
                viewWidth -= marginLayoutParams.rightMargin;
            }
        }

        // ?
        int averageWidth = viewWidth / tabViewGroup.getChildCount();
        int bigTabCount = 0; // ?tab???
        for (int w = 0; w < tabViewGroup.getChildCount(); w++) {
            tabView = tabViewGroup.getChildAt(w);
            // ????
            if (tabView != null && tabView.getMeasuredWidth() > averageWidth) {
                viewWidth -= tabView.getMeasuredWidth();
                bigTabCount++;
            }
        }

        // ?
        averageWidth = viewWidth / (tabViewGroup.getChildCount() - bigTabCount);

        // ??Item
        for (int w = 0; w < tabViewGroup.getChildCount(); w++) {
            //?????
            tabView = tabViewGroup.getChildAt(w);
            if (tabView != null) {
                ViewGroup.LayoutParams layoutParams = tabView.getLayoutParams();
                if (layoutParams != null) {
                    layoutParams.width = tabView.getMeasuredWidth() < averageWidth ? averageWidth
                            : tabView.getMeasuredWidth();
                    tabView.setLayoutParams(layoutParams);
                    measure(tabView);
                }
            }
        }
        measure(tabViewGroup);
    }

    // ?????
    currentPosition = viewPager != null ? viewPager.getCurrentItem() : 0;
    scrollToChild(currentPosition, 0); //??
    selectedTab(currentPosition); //?TAB

    //?tab?Pager
    for (int w = 0; w < tabViewGroup.getChildCount(); w++) {
        View itemView = tabViewGroup.getChildAt(w);
        itemView.setTag(w);
        itemView.setOnClickListener(this);
    }

    super.onLayout(changed, l, t, r, b);
}

From source file:android.car.ui.provider.CarDrawerLayout.java

private void updateDrawerAlpha() {
    float alpha;/*from  ww  w .j a va  2s  .  c  o m*/
    if (mStartedOpen) {
        alpha = mDrawerFadeInterpolator.getReverseInterpolation(onScreen());
    } else {
        alpha = mDrawerFadeInterpolator.getForwardInterpolation(onScreen());
    }
    ViewGroup drawerView = (ViewGroup) findDrawerView();
    int drawerChildCount = drawerView.getChildCount();
    for (int i = 0; i < drawerChildCount; i++) {
        drawerView.getChildAt(i).setAlpha(alpha);
    }
}