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:android.support.transition.ViewOverlayApi14.java

static ViewOverlayApi14 createFrom(View view) {
    ViewGroup contentView = getContentView(view);
    if (contentView != null) {
        final int numChildren = contentView.getChildCount();
        for (int i = 0; i < numChildren; ++i) {
            View child = contentView.getChildAt(i);
            if (child instanceof OverlayViewGroup) {
                return ((OverlayViewGroup) child).mViewOverlay;
            }/*from  w  w  w. java2s . c om*/
        }
        return new ViewGroupOverlayApi14(contentView.getContext(), contentView, view);
    }
    return null;
}

From source file:com.nttec.everychan.ui.theme.CustomThemeHelper.java

private static void setLollipopMenuOverflowIconColor(final ViewGroup toolbar, final int color) {
    try {/*from  w  ww  .j a va 2  s  .  co m*/
        //for API 23 (Android 6): at this point method Toolbar.setOverflowIcon(Drawable) has no effect
        toolbar.getClass().getMethod("getMenu").invoke(toolbar);
        AppearanceUtils.callWhenLoaded(toolbar, new Runnable() {
            @Override
            public void run() {
                try {
                    final ViewGroup actionMenuView = (ViewGroup) findViewByClassName(toolbar,
                            "android.widget.ActionMenuView");

                    Runnable setOverflowIcon = new Runnable() {
                        @Override
                        public void run() {
                            try {
                                Class<?> toolbarClass = toolbar.getClass();
                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                                    Drawable overflowIcon = (Drawable) toolbarClass.getMethod("getOverflowIcon")
                                            .invoke(toolbar);
                                    setColorFilter(overflowIcon);
                                    toolbarClass.getMethod("setOverflowIcon", Drawable.class).invoke(toolbar,
                                            overflowIcon);
                                } else {
                                    ImageView overflowButton = (ImageView) findViewByClassName(actionMenuView,
                                            "android.widget.ActionMenuPresenter$OverflowMenuButton");
                                    if (overflowButton != null) {
                                        Drawable overflowIcon = overflowButton.getDrawable();
                                        setColorFilter(overflowIcon);
                                        overflowButton.setImageDrawable(overflowIcon);
                                    }
                                }
                            } catch (Exception e) {
                                Logger.e(TAG, e);
                            }
                        }

                        private void setColorFilter(Drawable overflowIcon) {
                            overflowIcon.setColorFilter(color, PorterDuff.Mode.SRC_ATOP);
                        }
                    };

                    if (actionMenuView.getChildCount() == 0) {
                        AppearanceUtils.callWhenLoaded(actionMenuView == null ? toolbar : actionMenuView,
                                setOverflowIcon);
                    } else {
                        setOverflowIcon.run();
                    }
                } catch (Exception e) {
                    Logger.e(TAG, e);
                }
            }

            private View findViewByClassName(ViewGroup group, String className) {
                for (int i = 0, size = group.getChildCount(); i < size; ++i) {
                    View child = group.getChildAt(i);
                    if (child.getClass().getName().equals(className)) {
                        return child;
                    }
                }
                return null;
            }
        });
    } catch (Exception e) {
        Logger.e(TAG, e);
    }
}

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

public static ViewOverlay createFrom(View view) {
    ViewGroup contentView = getContentView(view);
    if (contentView != null) {
        final int numChildren = contentView.getChildCount();
        for (int i = 0; i < numChildren; ++i) {
            View child = contentView.getChildAt(i);
            if (child instanceof OverlayViewGroup) {
                return ((OverlayViewGroup) child).mViewOverlay;
            }/* w  w  w . jav  a  2s  .  c  o  m*/
        }
        return new ViewGroupOverlay(contentView.getContext(), contentView, view);
    }
    return null;
}

From source file:com.facebook.appevents.codeless.internal.ViewHierarchy.java

public static List<View> getChildrenOfView(View view) {
    ArrayList<View> children = new ArrayList<>();

    if (view != null && view instanceof ViewGroup) {
        ViewGroup viewGroup = (ViewGroup) view;
        int count = viewGroup.getChildCount();
        for (int i = 0; i < count; i++) {
            children.add(viewGroup.getChildAt(i));
        }/* w ww.j  a v  a 2s. com*/
    }

    return children;
}

From source file:li.barter.utils.Utils.java

/**
 * Test whether a viewgroup already contains a specific instance of a child view
 *
 * @param viewGroup//  w w w  .  j a v a  2 s  . c  o m
 * @param view
 * @return
 */
public static boolean containsChild(ViewGroup viewGroup, View view) {

    boolean contains = false;

    for (int i = 0; i < viewGroup.getChildCount(); i++) {

        if (viewGroup.getChildAt(i).equals(view)) {
            contains = true;
            break;
        }
    }
    return contains;
}

From source file:edu.com.mvplibrary.ui.widget.StatusBarUtil.java

/**
 *  DrawerLayout ???/*from w ww.  j av a 2s .com*/
 *
 * @param activity     ?activity
 * @param drawerLayout DrawerLayout
 */
public static void setTransparentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
        return;
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
    } else {
        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
    }

    ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
    // ? LinearLayout ,padding top
    if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
        contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
    }

    // 
    ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
    drawerLayout.setFitsSystemWindows(false);
    contentLayout.setFitsSystemWindows(false);
    contentLayout.setClipToPadding(true);
    drawer.setFitsSystemWindows(false);
}

From source file:com.facebook.litho.utils.IncrementalMountUtils.java

/**
 * Performs incremental mount on the children views of the given ViewGroup.
 * @param scrollingViewParent ViewGroup container of views that will be incrementally mounted.
 * @param force whether the incremental mount should always take place, or only if
 * {@link ComponentsConfiguration.isIncrementalMountOnOffsetOrTranslationChangeEnabled} returns
 * false.// w  ww  .ja v a 2  s.co m
 */
public static void performIncrementalMount(ViewGroup scrollingViewParent, boolean force) {
    assertMainThread();

    if (!force && ComponentsConfiguration.isIncrementalMountOnOffsetOrTranslationChangeEnabled) {
        return;
    }

    final int viewGroupWidth = scrollingViewParent.getWidth();
    final int viewGroupHeight = scrollingViewParent.getHeight();
    for (int i = 0; i < scrollingViewParent.getChildCount(); i++) {
        maybePerformIncrementalMountOnView(viewGroupWidth, viewGroupHeight, scrollingViewParent.getChildAt(i));
    }
}

From source file:am.widget.tabstrip.TabStripHelper.java

private static ViewPager traversal(View root) {
    if (root == null)
        return null;
    if (root instanceof ViewPager) {
        return (ViewPager) root;
    }//from   w  w  w. java  2  s.  com
    if (root instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) root;
        final int count = group.getChildCount();
        for (int i = 0; i < count; i++) {
            final ViewPager target = traversal(group.getChildAt(i));
            if (target != null) {
                return target;
            }
        }
    }
    return null;
}

From source file:dev.drsoran.moloko.util.UIUtils.java

public final static Pair<Integer, Integer> getTaggedViewRange(ViewGroup container, String tag) {
    int tagStart = -1;
    int tagEnd = -1;

    final int cnt = container.getChildCount();

    for (int i = 0; i < cnt && (tagStart == -1 || tagEnd == -1); ++i) {
        if (tagStart == -1 && tag.equals(container.getChildAt(i).getTag()))
            tagStart = i;/*from w ww.ja v a  2 s.  co m*/
        else if (tagStart != -1 && !tag.equals(container.getChildAt(i).getTag()))
            tagEnd = i;
    }

    if (tagStart != -1)
        return Pair.create(tagStart, tagEnd != -1 ? tagEnd : cnt);
    else
        return Pair.create(0, 0);
}

From source file:com.jaspersoft.android.jaspermobile.test.utils.espresso.JasperMatcher.java

public static Matcher<View> childForPositionOf(final int position, final Matcher<View> parentMatcher) {
    return new TypeSafeMatcher<View>() {
        @Override/*  w  w w .java 2s . c  om*/
        public void describeTo(Description description) {
            description.appendText(
                    "with child on position " + position + " of parent " + parentMatcher.toString());
        }

        @Override
        public boolean matchesSafely(View view) {
            if (!(view.getParent() instanceof ViewGroup)) {
                return parentMatcher.matches(view.getParent());
            }
            ViewGroup group = (ViewGroup) view.getParent();
            if (parentMatcher.matches(view.getParent())) {
                int childCount = group.getChildCount();
                if (position >= childCount) {
                    throw new RuntimeException("Position '" + position + "' should be lower than child count '"
                            + childCount + "'");
                }
                return group.getChildAt(position).equals(view);
            } else {
                return false;
            }
        }
    };
}