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.cairoconfessions.MainActivity.java

public void addItem(View view) {
    // Instantiate a new "row" view.
    final ViewGroup mFilter = (ViewGroup) findViewById(R.id.filter_cat);
    final ViewGroup mFilterLoc = (ViewGroup) findViewById(R.id.filter_loc);
    final ViewGroup mFilterMain = (ViewGroup) findViewById(R.id.filter_main);
    final ViewGroup newView = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.list_item_example, null);
    final ViewGroup newViewLoc = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.list_item_example,
            null);/* w  w w . j  av  a  2s  .c o m*/
    final ViewGroup newViewMain = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.list_item_example,
            null);
    ArrayList<View> presentView = new ArrayList<View>();

    mFilter.findViewsWithText(presentView, ((TextView) view).getText(), 1);
    if (presentView.size() == 0) {
        final String filterName = ((TextView) view).getText().toString();
        switch (((LinearLayout) view.getParent()).getId()) {
        case R.id.cat_filter_list:
            Categories.add(filterName);
            break;
        case R.id.locations:
            Cities.add(filterName);
            break;
        }
        if (filterName.equals("Love")) {
            newView.getChildAt(0).setBackgroundResource(R.color.love);
            newViewLoc.getChildAt(0).setBackgroundResource(R.color.love);
            newViewMain.getChildAt(0).setBackgroundResource(R.color.love);
        }
        if (filterName.equals("Pain")) {
            newView.getChildAt(0).setBackgroundResource(R.color.pain);
            newViewLoc.getChildAt(0).setBackgroundResource(R.color.pain);
            newViewMain.getChildAt(0).setBackgroundResource(R.color.pain);
        }
        if (filterName.equals("Guilt")) {
            newView.getChildAt(0).setBackgroundResource(R.color.guilt);
            newViewLoc.getChildAt(0).setBackgroundResource(R.color.guilt);
            newViewMain.getChildAt(0).setBackgroundResource(R.color.guilt);
        }
        if (filterName.equals("Fantasy")) {
            newView.getChildAt(0).setBackgroundResource(R.color.fantasy);
            newViewLoc.getChildAt(0).setBackgroundResource(R.color.fantasy);
            newViewMain.getChildAt(0).setBackgroundResource(R.color.fantasy);
        }
        if (filterName.equals("Dream")) {
            newView.getChildAt(0).setBackgroundResource(R.color.dream);
            newViewLoc.getChildAt(0).setBackgroundResource(R.color.dream);
            newViewMain.getChildAt(0).setBackgroundResource(R.color.dream);
        }
        ((TextView) newView.findViewById(android.R.id.text1)).setText(filterName);
        ((TextView) newViewLoc.findViewById(android.R.id.text1)).setText(filterName);
        ((TextView) newViewMain.findViewById(android.R.id.text1)).setText(filterName);
        // Set a click listener for the "X" button in the row that will
        // remove the row.

        newView.findViewById(R.id.delete_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mFilter.removeView(newView);
                mFilterLoc.removeView(newViewLoc);
                mFilterMain.removeView(newViewMain);
                if (mFilter.getChildCount() == 0) {
                    findViewById(R.id.content_loc).setVisibility(View.GONE);
                    findViewById(R.id.content_cat).setVisibility(View.GONE);
                    findViewById(R.id.content_main).setVisibility(View.GONE);
                }
                if (Categories.contains(filterName))
                    while (Categories.remove(filterName))
                        ;
                if (Cities.contains(filterName))
                    while (Cities.remove(filterName))
                        ;
                updateFilters();
            }
        });
        newViewLoc.findViewById(R.id.delete_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mFilterLoc.removeView(newViewLoc);
                mFilter.removeView(newView);
                mFilterMain.removeView(newViewMain);
                if (mFilterLoc.getChildCount() == 0) {
                    findViewById(R.id.content_loc).setVisibility(View.GONE);
                    findViewById(R.id.content_cat).setVisibility(View.GONE);
                    findViewById(R.id.content_main).setVisibility(View.GONE);
                }
                if (Categories.contains(filterName))
                    while (Categories.remove(filterName))
                        ;
                if (Cities.contains(filterName))
                    while (Cities.remove(filterName))
                        ;
                updateFilters();
            }

        });
        newViewMain.findViewById(R.id.delete_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mFilterLoc.removeView(newViewLoc);
                mFilter.removeView(newView);
                mFilterMain.removeView(newViewMain);
                if (mFilterMain.getChildCount() == 0) {
                    findViewById(R.id.content_loc).setVisibility(View.GONE);
                    findViewById(R.id.content_cat).setVisibility(View.GONE);
                    findViewById(R.id.content_main).setVisibility(View.GONE);
                }
                if (Categories.contains(filterName))
                    while (Categories.remove(filterName))
                        ;
                if (Cities.contains(filterName))
                    while (Cities.remove(filterName))
                        ;
                updateFilters();
            }

        });

        // Because mFilter has android:animateLayoutChanges set to true,
        // adding this view is automatically animated.
        // mFilterCat.addView(newViewCat);
        mFilter.addView(newView, 0);
        mFilterLoc.addView(newViewLoc, 0);
        mFilterMain.addView(newViewMain, 0);
        findViewById(R.id.content_loc).setVisibility(View.VISIBLE);
        findViewById(R.id.content_cat).setVisibility(View.VISIBLE);
        findViewById(R.id.content_main).setVisibility(View.VISIBLE);
        updateFilters();
        Toast.makeText(this, filterName + " filter added!", Toast.LENGTH_LONG).show();
    } else
        Toast.makeText(this, "Already added!", Toast.LENGTH_LONG).show();
}

From source file:android.support.transition.Transition.java

/**
 * Recursive method which captures values for an entire view hierarchy,
 * starting at some root view. Transitions without targetIDs will use this
 * method to capture values for all possible views.
 *
 * @param view The view for which to capture values. Children of this View
 * will also be captured, recursively down to the leaf nodes.
 * @param start true if values are being captured in the start scene, false
 * otherwise./*from   w  ww.  ja v a 2s. c  om*/
 */
private void captureHierarchy(View view, boolean start) {
    if (view == null) {
        return;
    }
    boolean isListViewItem = false;
    if (view.getParent() instanceof ListView) {
        isListViewItem = true;
    }
    if (isListViewItem && !((ListView) view.getParent()).getAdapter().hasStableIds()) {
        // ignore listview children unless we can track them with stable IDs
        return;
    }
    int id = View.NO_ID;
    long itemId = View.NO_ID;
    if (!isListViewItem) {
        id = view.getId();
    } else {
        ListView listview = (ListView) view.getParent();
        int position = listview.getPositionForView(view);
        itemId = listview.getItemIdAtPosition(position);
        ViewCompat.setHasTransientState(view, true);
    }
    if (mTargetIdExcludes != null && mTargetIdExcludes.contains(id)) {
        return;
    }
    if (mTargetExcludes != null && mTargetExcludes.contains(view)) {
        return;
    }
    if (mTargetTypeExcludes != null && view != null) {
        int numTypes = mTargetTypeExcludes.size();
        for (int i = 0; i < numTypes; ++i) {
            if (mTargetTypeExcludes.get(i).isInstance(view)) {
                return;
            }
        }
    }
    TransitionValues values = new TransitionValues();
    values.view = view;
    if (start) {
        captureStartValues(values);
    } else {
        captureEndValues(values);
    }
    if (start) {
        if (!isListViewItem) {
            mStartValues.viewValues.put(view, values);
            if (id >= 0) {
                mStartValues.idValues.put((int) id, values);
            }
        } else {
            mStartValues.itemIdValues.put(itemId, values);
        }
    } else {
        if (!isListViewItem) {
            mEndValues.viewValues.put(view, values);
            if (id >= 0) {
                mEndValues.idValues.put((int) id, values);
            }
        } else {
            mEndValues.itemIdValues.put(itemId, values);
        }
    }
    if (view instanceof ViewGroup) {
        // Don't traverse child hierarchy if there are any child-excludes on this view
        if (mTargetIdChildExcludes != null && mTargetIdChildExcludes.contains(id)) {
            return;
        }
        if (mTargetChildExcludes != null && mTargetChildExcludes.contains(view)) {
            return;
        }
        if (mTargetTypeChildExcludes != null && view != null) {
            int numTypes = mTargetTypeChildExcludes.size();
            for (int i = 0; i < numTypes; ++i) {
                if (mTargetTypeChildExcludes.get(i).isInstance(view)) {
                    return;
                }
            }
        }
        ViewGroup parent = (ViewGroup) view;
        for (int i = 0; i < parent.getChildCount(); ++i) {
            captureHierarchy(parent.getChildAt(i), start);
        }
    }
}

From source file:com.givewaygames.transition.Transition.java

/**
 * Recursive method which captures values for an entire view hierarchy,
 * starting at some root view. Transitions without targetIDs will use this
 * method to capture values for all possible views.
 *
 * @param view The view for which to capture values. Children of this View
 * will also be captured, recursively down to the leaf nodes.
 * @param start true if values are being captured in the start scene, false
 * otherwise./*from   w w  w.j  av  a  2  s  .co m*/
 */
private void captureHierarchy(View view, boolean start) {
    if (view == null) {
        return;
    }
    boolean isListViewItem = false;
    if (view.getParent() instanceof ListView) {
        isListViewItem = true;
    }
    if (isListViewItem && !((ListView) view.getParent()).getAdapter().hasStableIds()) {
        // ignore listview children unless we can track them with stable IDs
        return;
    }
    int id = View.NO_ID;
    long itemId = View.NO_ID;
    if (!isListViewItem) {
        id = view.getId();
    } else {
        ListView listview = (ListView) view.getParent();
        int position = listview.getPositionForView(view);
        itemId = listview.getItemIdAtPosition(position);
        view.setHasTransientState(true);
    }
    if (mTargetIdExcludes != null && mTargetIdExcludes.contains(id)) {
        return;
    }
    if (mTargetExcludes != null && mTargetExcludes.contains(view)) {
        return;
    }
    if (mTargetTypeExcludes != null && view != null) {
        int numTypes = mTargetTypeExcludes.size();
        for (int i = 0; i < numTypes; ++i) {
            if (mTargetTypeExcludes.get(i).isInstance(view)) {
                return;
            }
        }
    }
    TransitionValues values = new TransitionValues();
    values.view = view;
    if (start) {
        captureStartValues(values);
    } else {
        captureEndValues(values);
    }
    if (start) {
        if (!isListViewItem) {
            mStartValues.viewValues.put(view, values);
            if (id >= 0) {
                mStartValues.idValues.put((int) id, values);
            }
        } else {
            mStartValues.itemIdValues.put(itemId, values);
        }
    } else {
        if (!isListViewItem) {
            mEndValues.viewValues.put(view, values);
            if (id >= 0) {
                mEndValues.idValues.put((int) id, values);
            }
        } else {
            mEndValues.itemIdValues.put(itemId, values);
        }
    }
    if (view instanceof ViewGroup) {
        // Don't traverse child hierarchy if there are any child-excludes on this view
        if (mTargetIdChildExcludes != null && mTargetIdChildExcludes.contains(id)) {
            return;
        }
        if (mTargetChildExcludes != null && mTargetChildExcludes.contains(view)) {
            return;
        }
        if (mTargetTypeChildExcludes != null && view != null) {
            int numTypes = mTargetTypeChildExcludes.size();
            for (int i = 0; i < numTypes; ++i) {
                if (mTargetTypeChildExcludes.get(i).isInstance(view)) {
                    return;
                }
            }
        }
        ViewGroup parent = (ViewGroup) view;
        for (int i = 0; i < parent.getChildCount(); ++i) {
            captureHierarchy(parent.getChildAt(i), start);
        }
    }
}

From source file:com.xiaosu.lib.base.widget.drawerLayout.DrawerLayout.java

private boolean isDrawerViewOrChild(View child) {
    if (child == mDrawerView)
        return true;

    if (mDrawerView instanceof ViewGroup) {
        ViewGroup parent = (ViewGroup) mDrawerView;
        int count = parent.getChildCount();
        for (int i = 0; i < count; i++) {
            if (parent.getChildAt(i) == child)
                return true;
        }// www  .j  a va2  s .  co m
    }
    return false;
}

From source file:com.lansun.qmyo.view.ViewDragHelper.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 * //  w w w .j  a v a2 s. com
 * @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).
 * @param dx
 *            Delta scrolled in pixels along the X axis
 * @param dy
 *            Delta scrolled in pixels along the Y axis
 * @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 dy, 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--) {
            // This will not work for transformed views in Honeycomb+
            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, dy, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }

    return checkV && (ViewCompat.canScrollHorizontally(v, -dx) || ViewCompat.canScrollVertically(v, -dy));
}

From source file:com.todoroo.astrid.adapter.TaskAdapter.java

/** Creates a new view for use in the list view */
@Override//from   ww w . j a v  a  2s  . co  m
public View newView(Context context, Cursor cursor, ViewGroup parent) {
    ViewGroup view = (ViewGroup) inflater.inflate(R.layout.task_adapter_row_simple, parent, false);

    // create view holder
    ViewHolder viewHolder = new ViewHolder();
    viewHolder.task = new Task();
    viewHolder.rowBody = (ViewGroup) view.findViewById(R.id.rowBody);
    viewHolder.nameView = (TextView) view.findViewById(R.id.title);
    viewHolder.completeBox = (CheckableImageView) view.findViewById(R.id.completeBox);
    viewHolder.dueDate = (TextView) view.findViewById(R.id.due_date);
    viewHolder.tagBlock = (TextView) view.findViewById(R.id.tag_block);
    viewHolder.taskActionContainer = view.findViewById(R.id.taskActionContainer);
    viewHolder.taskActionIcon = (ImageView) view.findViewById(R.id.taskActionIcon);

    boolean showFullTaskTitle = preferences.getBoolean(R.string.p_fullTaskTitle, false);
    if (showFullTaskTitle) {
        viewHolder.nameView.setMaxLines(Integer.MAX_VALUE);
        viewHolder.nameView.setSingleLine(false);
        viewHolder.nameView.setEllipsize(null);
    }

    view.setTag(viewHolder);
    for (int i = 0; i < view.getChildCount(); i++) {
        view.getChildAt(i).setTag(viewHolder);
    }

    // add UI component listeners
    addListeners(view);

    return view;
}

From source file:android.support.v7.preference.Preference.java

/**
 * Makes sure the view (and any children) get the enabled state changed.
 *///from w  w  w.  ja  v  a 2 s .  c  om
private void setEnabledStateOnViews(View v, boolean enabled) {
    v.setEnabled(enabled);

    if (v instanceof ViewGroup) {
        final ViewGroup vg = (ViewGroup) v;
        for (int i = vg.getChildCount() - 1; i >= 0; i--) {
            setEnabledStateOnViews(vg.getChildAt(i), enabled);
        }
    }
}

From source file:com.xiaosu.lib.base.widget.drawerLayout.DrawerLayout.java

View findTopChildUnder(View view, int x, int y) {
    if (view instanceof ViewGroup) {
        ViewGroup parent = (ViewGroup) view;
        final int childCount = parent.getChildCount();
        for (int i = childCount - 1; i >= 0; i--) {
            final View child = parent.getChildAt(i);
            if (x >= child.getLeft() && x < child.getRight() && y >= child.getTop() && y < child.getBottom()) {
                return child;
            }/*w  w  w  . j  av a2 s. c  om*/
        }
    }
    return null;
}

From source file:com.achep.acdisplay.ui.fragments.AcDisplayFragment.java

private void rebuildNotifications() {
    final long now = SystemClock.elapsedRealtime();

    ViewGroup container = mIconsContainer;

    final int childCount = container.getChildCount();

    // Count the number of non-notification fragments
    // such as unlock or music controls fragments.
    int start = 0;
    for (int i = 0; i < childCount; i++) {
        View child = container.getChildAt(i);
        Widget fragment = findWidgetByIcon(child);
        if (fragment instanceof NotifyWidget) {
            // Those fragments are placed at the begin of layout
            // so no reason to continue searching.
            break;
        } else {//  w  w  w.  j a v a 2 s  .co  m
            start++;
        }
    }

    final ArrayList<OpenNotification> list = NotificationPresenter.getInstance().getList();
    final int notifyCount = list.size();

    final boolean[] notifyUsed = new boolean[notifyCount];
    final boolean[] childUsed = new boolean[childCount];

    for (int i = start; i < childCount; i++) {
        View child = container.getChildAt(i);
        NotifyWidget widget = (NotifyWidget) findWidgetByIcon(child);
        OpenNotification target = widget.getNotification();

        for (int j = 0; j < notifyCount; j++) {
            OpenNotification n = list.get(j);
            if (NotificationUtils.hasIdenticalIds(target, n)) {

                notifyUsed[j] = true;
                childUsed[i] = true;

                if (target != n) {
                    widget.setNotification(n);
                }
                break;
            }
        }
    }

    // Re-use free views and remove redundant views.
    boolean removeAllAfter = false;
    for (int a = start, j = 0, offset = 0; a < childCount; a++) {
        if (childUsed[a])
            continue;
        final int i = a + offset;

        View child = container.getChildAt(i);
        removing_all_next_views: {
            if (!removeAllAfter) {
                for (; j < notifyCount; j++) {
                    if (notifyUsed[j])
                        continue;

                    assert child != null;
                    notifyUsed[j] = true;

                    NotifyWidget nw = (NotifyWidget) findWidgetByIcon(child);
                    nw.setNotification(list.get(j));
                    break removing_all_next_views;
                }
            }
            removeAllAfter = true;
            internalReleaseWidget(child);

            // Remove widget's icon.
            container.removeViewAt(i);
            offset--;
        }
    }

    assert getActivity() != null;
    LayoutInflater inflater = getActivity().getLayoutInflater();

    final int iconSize = getConfig().getIconSizePx();
    for (int i = 0; i < notifyCount; i++) {
        if (notifyUsed[i])
            continue;

        NotifyWidget nw = new NotifyWidget(this, this);
        if (isResumed())
            nw.start();

        View iconView = nw.createIconView(inflater, container);
        ViewUtils.setSize(iconView, iconSize);
        container.addView(iconView);

        nw.setNotification(list.get(i));
        mWidgetsMap.put(iconView, nw);
    }

    // /////////////////////
    // ~~ UPDATE HASH MAP ~~
    // /////////////////////

    HashMap<String, SceneCompat> map = (HashMap<String, SceneCompat>) mScenesMap.clone();

    mScenesMap.clear();
    for (Widget fragment : mWidgetsMap.values()) {
        String type = fragment.getClass().getName();
        SceneCompat scene = map.get(type);
        if (scene != null) {
            fragment.createView(null, null, scene.getView());
        } else {
            ViewGroup sceneView = fragment.createView(inflater, mSceneContainer, null);
            if (sceneView != null) {
                scene = new SceneCompat(mSceneContainer, sceneView);
                map.put(type, scene);
            }
        }
        if (scene != null) {
            mScenesMap.put(type, scene);
        }
    }

    if (DEBUG) {
        long delta = SystemClock.elapsedRealtime() - now;
        Log.d(TAG, "Fragment list updated in " + delta + "ms.");
    }

    // Do not animate divider's visibility change on
    // pause/resume, cause it _somehow_ confuses people.
    boolean animate = !mResuming;
    updateDividerVisibility(animate);
}

From source file:com.chauthai.swipereveallayout.ViewDragHelper.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).
 * @param dx     Delta scrolled in pixels along the X axis
 * @param dy     Delta scrolled in pixels along the Y axis
 * @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.
 *///from ww w.  j  a v a  2  s. c  om
protected boolean canScroll(View v, boolean checkV, int dx, int dy, 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--) {
            // TODO: Add versioned support here for transformed views.
            // This will not work for transformed views in Honeycomb+
            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, dy, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }
    return checkV && (ViewCompat.canScrollHorizontally(v, -dx) || ViewCompat.canScrollVertically(v, -dy));
}