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:Main.java

private static void unwrapView(ViewGroup wrapper) {
    final int childCount = wrapper.getChildCount();
    View[] childViews = new View[childCount];

    ViewGroup parent = (ViewGroup) wrapper.getParent();

    if (parent != null) {
        parent.removeView(wrapper);//from w w w  . j av a 2s  . c o  m
    }

    for (int i = 0; i < childCount; i++) {
        childViews[i] = wrapper.getChildAt(i);
    }

    // If there was just one wrapper reuse the wrapper layout
    // params to ensure correct type for parent
    if (childCount == 1) {
        ViewGroup.LayoutParams wrapperParams = wrapper.getLayoutParams();
        if (wrapperParams != null) {
            childViews[0].setLayoutParams(wrapperParams);
        }
    }

    for (int i = 0; i < childCount; i++) {
        final View childView = childViews[i];

        wrapper.removeView(childView);
        if (parent != null) {
            parent.addView(childView);
        }
    }
}

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From source file:com.normalexception.app.rx8club.fragment.FragmentUtils.java

/**
 * Convenient method to register an onclicklistener to all views within a 
 * viewgroup/*from w  w  w.  ja  va2 s. co m*/
 * @param och   The handler to assign
 * @param vh   The view group to assign to
 */
public static void registerHandlerToViewObjects(OnClickListener och, ViewGroup vh) {
    View v = null;
    Log.v(TAG, String.format("Registering %d Listening Objects", vh.getChildCount()));
    for (int i = 0; i < vh.getChildCount(); i++) {
        v = vh.getChildAt(i);
        if (v instanceof Button)
            v.setOnClickListener(och);
        if (v instanceof ImageView)
            v.setOnClickListener(och);
    }
}

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From source file:Main.java

public static void applyDialogStyle(ViewGroup viewGroup) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        return;//from  w ww  . j  ava  2  s. c  o  m
    }

    viewGroup.setBackgroundColor(Color.BLACK);

    // Theme.AppCompat.Light makes all text and background black
    final int childCount = viewGroup.getChildCount();
    for (int i = 0; i < childCount; i++) {
        View childView = viewGroup.getChildAt(i);
        if (childView instanceof ListView) {
            childView.setBackgroundColor(Color.LTGRAY);
        } else if (childView instanceof ViewGroup) {
            applyDialogStyle((ViewGroup) childView);
        } else if (childView instanceof TextView) {
            ((TextView) childView).setTextColor(Color.WHITE);
        }
    }
}

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From source file:com.google.android.apps.common.testing.accessibility.framework.AccessibilityCheckUtils.java

/**
 * Retrieve text for a {@link View}, which may include text from the children of the {@code View}.
 * This text is an approximation of, but not identical to, what TalkBack would speak for the
 * {@link View}. One difference is that there are no separators between the speakable text from
 * different nodes./*from ww w . j  av a2s. co m*/
 * <p>
 * TalkBack also will not speak {@link View}s that aren't visible. This method assumes that the
 * {@link View} passed in is visible. The visibility of the rest of child nodes is inferred from
 * {@code view.getVisibility}.
 *
 * @param view The {@link View} whose text should be returned.
 *
 * @return Speakable text derived from the {@link View} and its children. Returns an empty string
 *         if there is no such text, and {@code null} if {@code view == null}.
 */
static CharSequence getSpeakableTextForView(View view) {
    if (view == null) {
        return null;
    }

    View labelForThisView = ViewAccessibilityUtils.getLabelForView(view);
    if (labelForThisView != null) {
        return getSpeakableTextForView(labelForThisView);
    }

    SpannableStringBuilder returnStringBuilder = new SpannableStringBuilder("");

    // Accessibility importance is considered only on Jelly Bean and above
    if ((Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN)
            || ViewAccessibilityUtils.isImportantForAccessibility(view)) {
        if (!TextUtils.isEmpty(view.getContentDescription())) {
            // contentDescription always wins out over other properties
            return view.getContentDescription();
        }
        if (view instanceof TextView) {
            if (!TextUtils.isEmpty(((TextView) view).getText())) {
                returnStringBuilder.append(((TextView) view).getText());
            } else if (!TextUtils.isEmpty(((TextView) view).getHint())) {
                returnStringBuilder.append(((TextView) view).getHint());
            }
        }
    }

    if (view instanceof ViewGroup) {
        ViewGroup group = (ViewGroup) view;
        // TODO(sjrush): Only evaluate child views if they're importantForAccessibility.
        for (int i = 0; i < group.getChildCount(); ++i) {
            View childView = group.getChildAt(i);
            if ((childView.getVisibility() == View.VISIBLE)
                    && !ViewAccessibilityUtils.isActionableForAccessibility(childView)) {
                returnStringBuilder.append(getSpeakableTextForView(childView));
            }
        }
    }

    if (view instanceof CompoundButton) {
        if (((CompoundButton) view).isChecked()) {
            StringBuilderUtils.appendWithSeparator(returnStringBuilder, "Checked");
        } else {
            StringBuilderUtils.appendWithSeparator(returnStringBuilder, "Not checked");
        }
    }
    return returnStringBuilder;
}

---

From source file:com.metinkale.prayerapp.vakit.WidgetService.java

private static boolean recurseGroup(ViewGroup gp) {
    int count = gp.getChildCount();
    for (int i = 0; i < count; ++i) {
        View v = gp.getChildAt(i);
        if (v instanceof TextView) {
            TextView text = (TextView) v;
            String szText = text.getText().toString();
            if (COLOR_SEARCH_1ST.equals(szText)) {
                COLOR_1ST = text.getCurrentTextColor();
            }//from ww  w  . ja  v a2  s .  com
            if (COLOR_SEARCH_2ND.equals(szText)) {
                COLOR_2ND = text.getCurrentTextColor();
            }

            if ((COLOR_1ST != null) && (COLOR_2ND != null)) {
                return true;
            }
        } else if (gp.getChildAt(i) instanceof ViewGroup) {
            if (recurseGroup((ViewGroup) v)) {
                return true;
            }
        }
    }
    return false;
}

---

From source file:com.micabyte.android.app.BaseActivity.java

private static void unbindViewGroupReferences(ViewGroup viewGroup) {
    final int nrOfChildren = viewGroup.getChildCount();
    for (int i = 0; i < nrOfChildren; i++) {
        final View view = viewGroup.getChildAt(i);
        unbindViewReferences(view);//from w w  w . j  ava2s. com
        if (view instanceof ViewGroup)
            unbindViewGroupReferences((ViewGroup) view);
    }
    try {
        viewGroup.removeAllViews();
    } catch (Throwable mayHappen) {
        // AdapterViews, ListViews and potentially other ViewGroups don't
        // support the removeAllViews operation
    }
}

---

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 w w.j a  v  a 2 s .  c  om*/

    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: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);
                }//from  ww w .  j  a v a 2 s .c om
            }
        }
    }
}

---

From source file:android.support.design.testutils.TestUtilsActions.java

/**
 * Replaces an existing {@link TabLayout} with a new one inflated from the specified
 * layout resource./*from w  w  w.j  a v a 2  s . c  o m*/
 */
public static ViewAction replaceTabLayout(final @LayoutRes int tabLayoutResId) {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isDisplayingAtLeast(90);
        }

        @Override
        public String getDescription() {
            return "Replace TabLayout";
        }

        @Override
        public void perform(UiController uiController, View view) {
            uiController.loopMainThreadUntilIdle();

            final ViewGroup viewGroup = (ViewGroup) view;
            final int childCount = viewGroup.getChildCount();
            // Iterate over children and find TabLayout
            for (int i = 0; i < childCount; i++) {
                View child = viewGroup.getChildAt(i);
                if (child instanceof TabLayout) {
                    // Remove the existing TabLayout
                    viewGroup.removeView(child);
                    // Create a new one
                    final LayoutInflater layoutInflater = LayoutInflater.from(view.getContext());
                    final TabLayout newTabLayout = (TabLayout) layoutInflater.inflate(tabLayoutResId, viewGroup,
                            false);
                    // Make sure we're adding the new TabLayout at the same index
                    viewGroup.addView(newTabLayout, i);
                    break;
                }
            }

            uiController.loopMainThreadUntilIdle();
        }
    };
}

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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. j a va 2  s  .c om*/
}

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