Example usage for android.view ViewGroup getChildCount

Introduction

In this page you can find the example usage for android.view ViewGroup getChildCount.

Prototype

public int getChildCount()

Source Link

Document

Returns the number of children in the group.

Usage

From source file:com.hellofyc.base.util.ViewUtils.java

@TargetApi(11)
public static void setActionBarTranslation(Context context, float y) {
    int actionBarHeight = getActionBarHeight(context);

    ViewGroup content = ((ViewGroup) ((Activity) context).findViewById(android.R.id.content).getParent());
    int children = content.getChildCount();
    for (int i = 0; i < children; i++) {
        View child = content.getChildAt(i);
        if (child.getId() != android.R.id.content) {
            if (y <= -actionBarHeight) {
                child.setVisibility(View.GONE);
            } else {
                child.setVisibility(View.VISIBLE);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
                    child.setTranslationY(y);
                }//  ww w  .jav a 2  s.c o  m
            }
        }
    }
}

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//from w ww.  j a v  a2  s.c  o m
        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;
            }
        }
    };
}

From source file:com.facebook.stetho.inspector.elements.android.AccessibilityNodeInfoWrapper.java

@Nullable
public static CharSequence getDescription(AccessibilityNodeInfoCompat node, View view) {
    CharSequence contentDescription = node.getContentDescription();
    CharSequence nodeText = node.getText();

    boolean hasNodeText = !TextUtils.isEmpty(nodeText);
    boolean isEditText = view instanceof EditText;

    // EditText's prioritize their own text content over a contentDescription
    if (!TextUtils.isEmpty(contentDescription) && (!isEditText || !hasNodeText)) {
        return contentDescription;
    }//from   w  ww  .  j  av  a  2s. c o m

    if (hasNodeText) {
        return nodeText;
    }

    // If there are child views and no contentDescription the text of all non-focusable children,
    // comma separated, becomes the description.
    if (view instanceof ViewGroup) {
        final StringBuilder concatChildDescription = new StringBuilder();
        final String separator = ", ";
        ViewGroup viewGroup = (ViewGroup) view;

        for (int i = 0, count = viewGroup.getChildCount(); i < count; i++) {
            final View child = viewGroup.getChildAt(i);

            AccessibilityNodeInfoCompat childNodeInfo = AccessibilityNodeInfoCompat.obtain();
            ViewCompat.onInitializeAccessibilityNodeInfo(child, childNodeInfo);

            CharSequence childNodeDescription = null;
            if (AccessibilityUtil.isSpeakingNode(childNodeInfo, child)
                    && !AccessibilityUtil.isAccessibilityFocusable(childNodeInfo, child)) {
                childNodeDescription = getDescription(childNodeInfo, child);
            }

            if (!TextUtils.isEmpty(childNodeDescription)) {
                if (concatChildDescription.length() > 0) {
                    concatChildDescription.append(separator);
                }
                concatChildDescription.append(childNodeDescription);
            }
            childNodeInfo.recycle();
        }

        return concatChildDescription.length() > 0 ? concatChildDescription.toString() : null;
    }

    return null;
}

From source file:org.mariotaku.twidere.view.CardMediaContainer.java

private static int getChildIndicesInLayout(ViewGroup viewGroup, int[] indices) {
    final int childCount = viewGroup.getChildCount();
    int indicesCount = 0;
    for (int i = 0; i < childCount; i++) {
        if (viewGroup.getChildAt(i).getVisibility() != GONE) {
            indices[indicesCount++] = i;
        }/*from w w w .  j a  va  2s.  c  o  m*/
    }
    return indicesCount;
}

From source file:android.support.v7.testutils.TestUtilsMatchers.java

/**
 * Returns a matcher that matches {@link View}s based on the given child type.
 *
 * @param childMatcher the type of the child to match on
 *///  w w  w.j  a  va2s . c  o m
public static Matcher<ViewGroup> hasChild(final Matcher<View> childMatcher) {
    return new TypeSafeMatcher<ViewGroup>() {
        @Override
        public void describeTo(Description description) {
            description.appendText("has child: ");
            childMatcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(ViewGroup view) {
            final int childCount = view.getChildCount();
            for (int i = 0; i < childCount; i++) {
                if (childMatcher.matches(view.getChildAt(i))) {
                    return true;
                }
            }
            return false;
        }
    };
}

From source file:io.selendroid.server.model.internal.AbstractNativeElementContext.java

/** visible for testing */
protected static List<AndroidElement> searchViews(AbstractNativeElementContext context, List<View> roots,
        Predicate predicate, boolean findJustOne) {
    List<AndroidElement> elements = new ArrayList<AndroidElement>();
    if (roots == null || roots.isEmpty()) {
        return elements;
    }//from   ww w  . j  a v  a  2  s .com
    ArrayDeque<View> queue = new ArrayDeque<View>();

    for (View root : roots) {
        queue.add(root);
        while (!queue.isEmpty()) {
            View view = queue.pop();
            if (predicate.apply(view)) {
                elements.add(context.newAndroidElement(view));
                if (findJustOne) {
                    break;
                }
            }
            if (view instanceof ViewGroup) {
                ViewGroup group = (ViewGroup) view;
                int childrenCount = group.getChildCount();
                for (int index = 0; index < childrenCount; index++) {
                    queue.add(group.getChildAt(index));
                }
            }
        }
    }
    return elements;
}

From source file:com.github.shareme.gwsmaterialuikit.library.advancerv.utils.CustomRecyclerViewUtils.java

private static View findChildViewUnderWithoutTranslation(@NonNull ViewGroup parent, float x, float y) {
    final int count = parent.getChildCount();
    for (int i = count - 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;
        }/*from w  w  w. j  a v  a 2  s  . co m*/
    }
    return null;
}

From source file:Main.java

/**
 * Borrowed from android.support.design.widget.AppBarLayout
 *//*from   w w  w  . java2s  . co m*/
public static int getMinimumHeightForVisibleOverlappingContent(ViewGroup appBarLayout) {
    final int topInset = getTopInset(appBarLayout);
    final int minHeight = ViewCompat.getMinimumHeight(appBarLayout);
    if (minHeight != 0) {
        // If this layout has a min height, use it (doubled)
        return (minHeight * 2) + topInset;
    }

    // Otherwise, we'll use twice the min height of our last child
    final int childCount = appBarLayout.getChildCount();
    return childCount >= 1
            ? (ViewCompat.getMinimumHeight(appBarLayout.getChildAt(childCount - 1)) * 2) + topInset
            : 0;
}

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;
            }//w ww  .  j a v  a  2  s . com
        }
        return new ViewGroupOverlayApi14(contentView.getContext(), contentView, view);
    }
    return null;
}

From source file:io.github.prefanatic.cleantap.util.AnimUtils.java

public static void hideChildren(ViewGroup group) {
    FastOutLinearInInterpolator interpolator = new FastOutLinearInInterpolator();

    for (int i = 0; i < group.getChildCount(); i++) {
        View view = group.getChildAt(i);

        view.animate().alpha(0f).translationY(view.getHeight() / 3).setStartDelay(0L).setDuration(100L)
                .setInterpolator(interpolator).start();
    }/*from  w  w  w  .ja v  a2  s.  co  m*/
}