Example usage for android.view ViewGroup getChildAt

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.yangc.swipebacklayout.helper.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  w ww. j a  va 2 s  .c o  m
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));
}

From source file:com.juick.android.JuickMessagesAdapter.java

public void recycleView(View view) {
    if (view instanceof ViewGroup) {
        ListRowRuntime lrr = (ListRowRuntime) view.getTag();
        if (lrr != null) {
            if (lrr.userpicListener != null) {
                lrr.removeListenerIfExists();
            }//from   w w w. j  av a2 s  .  c o  m
        }
        ViewGroup vg = (ViewGroup) view;
        if (vg.getChildCount() > 1 && vg.getChildAt(1) instanceof ImageGallery
                && vg instanceof PressableLinearLayout) {
            PressableLinearLayout pll = (PressableLinearLayout) vg;
            // our view
            ImageGallery gallery = (ImageGallery) vg.getChildAt(1);
            Object tag = gallery.getTag();
            if (tag instanceof HashMap) {
                HashMap<Integer, ImageLoaderConfiguration> loaders = (HashMap<Integer, ImageLoaderConfiguration>) tag;
                for (ImageLoaderConfiguration imageLoader : loaders.values()) {
                    imageLoader.loader.terminate();
                }
            }
            pll.blockLayoutRequests = true;
            gallery.cleanup();
            gallery.setTag(null);
            vg.removeViewAt(1);
            vg.measure(View.MeasureSpec.makeMeasureSpec(vg.getRight() - vg.getLeft(), View.MeasureSpec.EXACTLY),
                    View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
            vg.layout(vg.getLeft(), vg.getTop(), vg.getRight(), vg.getTop() + vg.getMeasuredHeight());
            pll.blockLayoutRequests = false;
        }
    }
}

From source file:com.cyanogenmod.filemanager.ui.widgets.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.
 *//*  ww w  .  j a  va2 s .com*/
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 && (v.canScrollHorizontally(-dx) || v.canScrollVertically(-dy));
}

From source file:com.dk.view.FolderDrawerLayout.java

private void replaceView() {
    ViewGroup left = (ViewGroup) findDrawerWithGravity(Gravity.LEFT);
    mLeftCache = left.getChildAt(0);
    left.removeAllViews();// w w w  . ja  v  a  2 s  .c  om
    mMeshImageView = new MeshImageView(getContext());
    mMeshImageView.setImageBitmap(mDrawingCache);

    FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(-1, -1);
    left.addView(mMeshImageView, params);
    if (isDrawerOpen(Gravity.LEFT)) {
        mCoreCalc.setDirection(Direction.LEFT);
    } else {
        mCoreCalc.setDirection(Direction.RIGHT);
    }

    mMeshImageView.setMeshVerts(mCoreCalc.createOffsetVerts(1, mInitialMotionY));

    // mMeshImageView.getViewTreeObserver().addOnPreDrawListener(new
    // OnPreDrawListener() {
    //
    // @Override
    // public boolean onPreDraw() {
    //
    //
    // return false;
    // }
    // });
}

From source file:de.azapps.mirakel.main_activity.MainActivity.java

/**
 * Initialize the ViewPager and setup the rest of the layout
 *///from   w w w .j av a 2 s.  c om
private void setupLayout() {
    if (this.currentList == null) {
        setCurrentList(SpecialList.firstSpecialSafe());
    }
    // clear tabletfragments
    final ViewGroup all = (ViewGroup) this.findViewById(R.id.multi_pane_box);
    if ((all != null) && MirakelCommonPreferences.isTablet()) {
        for (int i = 0; i < all.getChildCount(); i++) {
            final ViewGroup group = (ViewGroup) all.getChildAt(i);
            group.removeAllViews();
            Log.d(TAG, "Clear view " + i);
        }
    }
    // Initialize ViewPager
    /*
     * TODO We need the try catch because it throws sometimes a
     * runtimeexception when adding fragments.
     */
    try {
        initViewPager();
    } catch (final Exception e) {
        Log.wtf(TAG, "initViewPager throwed an exception", e);
    }
    initNavDrawer();
    this.startIntent = getIntent();
    handleIntent(this.startIntent);
}

From source file:com.dk.view.FolderDrawerLayout.java

private boolean createCache() {
    ViewGroup left = (ViewGroup) findDrawerWithGravity(Gravity.LEFT);

    if (left.getChildCount() > 0 && !(left.getChildAt(0) instanceof MeshImageView)) {
        mDrawingCache = drawViewToBitmap(mDrawingCache, left, left.getWidth(), left.getHeight(), 1,
                new BitmapDrawable());

        if (mCoreCalc == null)
            mCoreCalc = new CoreCalc(left.getWidth(), left.getHeight());
        return true;
    } else {//  w w  w . j  a va  2  s  . co m
        return false;
    }

}

From source file:cn.bingoogolapple.swipebacklayout.BGASwipeBackLayout.java

/**
 *  Activity /* w  ww . j  a v  a 2 s.c  om*/
 *
 * @param activity
 */
public void attachToActivity(Activity activity) {
    mActivity = activity;

    setSliderFadeColor(Color.TRANSPARENT);

    mShadowView = new View(activity);
    setIsNeedShowShadow(mIsNeedShowShadow);
    addView(mShadowView, 0, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

    ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
    mContentView = decorView.getChildAt(0);
    decorView.removeView(mContentView);
    decorView.addView(this);
    addView(mContentView, 1, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
}

From source file:com.jzh.stuapp.view.MyViewPager.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 * //w  w w .  ja  va2s  .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
 * @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();
        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.wunderlist.slidinglayer.SlidingLayer.java

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;
            }//from ww w  .  j a  va2s. c  o m
        }
    }

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

From source file:ayushi.view.customview.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 w w  w . j ava  2s .  com
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));
}