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.google.samples.apps.iosched.session.SessionDetailFragment.java

private void displaySpeakersData(SessionDetailModel data) {
    final ViewGroup speakersGroup = (ViewGroup) getActivity().findViewById(R.id.session_speakers_block);

    // Remove all existing speakers (everything but first child, which is the header)
    for (int i = speakersGroup.getChildCount() - 1; i >= 1; i--) {
        speakersGroup.removeViewAt(i);/*from  w w  w  .j a va2s .co m*/
    }

    final LayoutInflater inflater = getActivity().getLayoutInflater();

    boolean hasSpeakers = false;

    List<SessionDetailModel.Speaker> speakers = data.getSpeakers();

    for (final SessionDetailModel.Speaker speaker : speakers) {

        String speakerHeader = speaker.getName();
        if (!TextUtils.isEmpty(speaker.getCompany())) {
            speakerHeader += ", " + speaker.getCompany();
        }

        final View speakerView = inflater.inflate(R.layout.speaker_detail, speakersGroup, false);
        final TextView speakerHeaderView = (TextView) speakerView.findViewById(R.id.speaker_header);
        final ImageView speakerImageView = (ImageView) speakerView.findViewById(R.id.speaker_image);
        final TextView speakerAbstractView = (TextView) speakerView.findViewById(R.id.speaker_abstract);
        final ImageView plusOneIcon = (ImageView) speakerView.findViewById(R.id.gplus_icon_box);
        final ImageView twitterIcon = (ImageView) speakerView.findViewById(R.id.twitter_icon_box);

        setUpSpeakerSocialIcon(speaker, twitterIcon, speaker.getTwitterUrl(), UIUtils.TWITTER_COMMON_NAME,
                UIUtils.TWITTER_PACKAGE_NAME);

        setUpSpeakerSocialIcon(speaker, plusOneIcon, speaker.getPlusoneUrl(), UIUtils.GOOGLE_PLUS_COMMON_NAME,
                UIUtils.GOOGLE_PLUS_PACKAGE_NAME);

        // A speaker may have both a Twitter and GPlus page, only a Twitter page or only a
        // GPlus page, or neither. By default, align the Twitter icon to the right and the GPlus
        // icon to its left. If only a single icon is displayed, align it to the right.
        determineSocialIconPlacement(plusOneIcon, twitterIcon);

        if (!TextUtils.isEmpty(speaker.getImageUrl()) && mSpeakersImageLoader != null) {
            mSpeakersImageLoader.loadImage(speaker.getImageUrl(), speakerImageView);
        }

        speakerHeaderView.setText(speakerHeader);
        speakerImageView.setContentDescription(getString(R.string.speaker_googleplus_profile, speakerHeader));
        UIUtils.setTextMaybeHtml(speakerAbstractView, speaker.getAbstract());

        if (!TextUtils.isEmpty(speaker.getUrl())) {
            speakerImageView.setEnabled(true);
            speakerImageView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Intent speakerProfileIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(speaker.getUrl()));
                    speakerProfileIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
                    UIUtils.preferPackageForIntent(getActivity(), speakerProfileIntent,
                            UIUtils.GOOGLE_PLUS_PACKAGE_NAME);
                    startActivity(speakerProfileIntent);
                }
            });
        } else {
            speakerImageView.setEnabled(false);
            speakerImageView.setOnClickListener(null);
        }

        speakersGroup.addView(speakerView);
        hasSpeakers = true;
    }

    speakersGroup.setVisibility(hasSpeakers ? View.VISIBLE : View.GONE);
    updateEmptyView(data);
}

---

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

private static void restyleViewGroup(ViewGroup view, ColorsTheme.ColorTheme colorTheme, boolean pressed,
        boolean selected, boolean dontBackground) {
    ViewGroup parent = view;
    if (parent.getId() == R.id.navigation_panel)
        return;//from   w ww.  j  a va2 s. com
    int childCount = parent.getChildCount();
    int background = colorTheme.getBackground(pressed);
    int foreground = colorTheme.getForeground(pressed);
    if (selected) {
        background = calculatePressedBackground(background, foreground);
    }
    if (!dontBackground) {
        boolean skipDraw = false;
        if ((view instanceof LinearLayout || view instanceof FrameLayout || view instanceof RelativeLayout)) {
            Context context = view.getContext();
            if (context instanceof MainActivity || context instanceof MessagesActivity
                    || context instanceof ThreadActivity) {
                // no unneeded background in given scrolling activities
                skipDraw = true;
                if (view.getBackground() != null) {
                    // but enable for layouts that with color
                    skipDraw = false;
                }
                if (!skipDraw && view.getClass().getName().toLowerCase().contains("decorview")) {
                    // given activities manage themselves
                    skipDraw = true;
                }
            }
        }
        if (!skipDraw)
            parent.setBackgroundColor(background);
    }
    if (view instanceof ListView)
        dontBackground = true;
    for (int i = 0; i < childCount; i++) {
        View child = parent.getChildAt(i);
        restyleChildrenOrWidget(child, dontBackground);
    }
}

---

From source file:com.facebook.litho.MountState.java

private static void mountViewIncrementally(View view, Rect localVisibleRect) {
    assertMainThread();//from   w w  w .  jav a 2  s.  co  m

    if (view instanceof LithoView) {
        final LithoView lithoView = (LithoView) view;
        lithoView.performIncrementalMount(localVisibleRect);
    } else if (view instanceof ViewGroup) {
        final ViewGroup viewGroup = (ViewGroup) view;

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

            if (localVisibleRect.intersects(childView.getLeft(), childView.getTop(), childView.getRight(),
                    childView.getBottom())) {
                final Rect rect = ComponentsPools.acquireRect();
                rect.set(Math.max(0, localVisibleRect.left - childView.getLeft()),
                        Math.max(0, localVisibleRect.top - childView.getTop()),
                        childView.getWidth() - Math.max(0, childView.getRight() - localVisibleRect.right),
                        childView.getHeight() - Math.max(0, childView.getBottom() - localVisibleRect.bottom));

                mountViewIncrementally(childView, rect);

                ComponentsPools.release(rect);
            }
        }
    }
}

---

From source file:info.tellmetime.TellmetimeActivity.java

/**
 * Handles changing highlight color via #mSeekBarHighlight.
 *
 * @param value indicates exact offset in gradient (SeekBar's max value is equal to #mRainbow width).
 */// www .  ja  v a 2 s . c  o  m
@Override
public void onProgressChanged(SeekBar seekBar, int value, boolean fromUser) {
    switch (seekBar.getId()) {
    case R.id.highlightValue:
        mHighlightColor = mRainbow.getPixel(value, 0);
        if (((RadioButton) findViewById(R.id.radio_backlight_highlight)).isChecked()) {
            float[] highlightHSV = new float[3];
            Color.colorToHSV(mHighlightColor, highlightHSV);
            mBacklightColor = Color.HSVToColor(33, highlightHSV);
        }
        if (fromUser)
            mHighlightPosition = (float) value / seekBar.getMax();

        mClockAlgorithm.tickTock();

        break;

    case R.id.minutesSize:
        mMinutesSize = value;

        if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
            FrameLayout minutesIndicators = (FrameLayout) findViewById(R.id.minutes_indicators);
            RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) minutesIndicators
                    .getLayoutParams();
            params.topMargin = (int) -TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mMinutesSize / 3,
                    getResources().getDisplayMetrics());
            minutesIndicators.setLayoutParams(params);
        }

        ViewGroup minutesDots = (ViewGroup) findViewById(R.id.minutes_dots);
        for (int i = 0; i < minutesDots.getChildCount(); i++) {
            TextView m = (TextView) minutesDots.getChildAt(i);
            m.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mMinutesSize);
        }

        break;
    }

    mHider.delayedHide(4000);
}

---

From source file:com.xnf.henghenghui.ui.view.PagerSlidingTabStrip.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);

    ViewGroup tabViewGroup = getTabsLayout();
    if (tabViewGroup != null) {
        // ?????/* w  w w .j  ava  2s .  c  o  m*/
        currentPosition = viewPager != null ? viewPager.getCurrentItem() : 0;
        //         if (!disableViewPager) {
        //            scrollToChild(currentPosition, 0); // ??
        //            selectedTab(currentPosition); // ?TAB
        //         }

        // ?tab?Pager
        for (int w = 0; w < tabViewGroup.getChildCount(); w++) {
            View itemView = tabViewGroup.getChildAt(w);
            itemView.setTag(w);
            itemView.setOnClickListener(this);
        }
    }
}

---

From source file:me.xiaopan.psts.PagerSlidingTabStrip.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (allowWidthFull && tabsLayout != null) {
        View childView;/*  w w  w . j av  a2 s .  com*/
        for (int w = 0, size = tabsLayout.getChildCount(); w < size; w++) {
            childView = tabsLayout.getChildAt(w);
            ViewGroup.LayoutParams params = childView.getLayoutParams();
            params.width = ViewGroup.LayoutParams.WRAP_CONTENT;
            childView.setLayoutParams(params);
        }
    }
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    if (!allowWidthFull) {
        return;
    }
    ViewGroup tabsLayout = getTabsLayout();
    if (tabsLayout == null) {
        return;
    }
    if (tabsLayout.getChildCount() <= 0) {
        return;
    }

    if (tabViews == null) {
        tabViews = new ArrayList<View>();
    } else {
        tabViews.clear();
    }
    for (int w = 0; w < tabsLayout.getChildCount(); w++) {
        tabViews.add(tabsLayout.getChildAt(w));
    }

    adjustChildWidthWithParent(tabViews,
            getMeasuredWidth() - tabsLayout.getPaddingLeft() - tabsLayout.getPaddingRight(), widthMeasureSpec,
            heightMeasureSpec);

    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

---

From source file:com.hynet.mergepay.components.widget.panellayout.ViewDragHelper.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;
            }/*  w w w  . j  a  va2 s .c  o m*/
        }
    }

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

---

From source file:info.tellmetime.TellmetimeActivity.java

private void resizeClock() {
    final LinearLayout mClock = (LinearLayout) findViewById(R.id.clock);

    // Set width of #mClock layout to the screen's shorter edge size, so clock is not
    // expanded in landscape mode, but has rather somewhat a square shape.
    RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
            FrameLayout.LayoutParams.WRAP_CONTENT);
    lp.addRule(RelativeLayout.CENTER_IN_PARENT);
    lp.width = mShorterEdge;// ww w . j  av a  2s .  c  om
    mClock.setLayoutParams(lp);

    final float mItemSize = mShorterEdge / mClock.getChildCount();
    final int mRowMargin = (int) -(mItemSize / 2.2);

    // Scale text size according to shorter edge and set spacing between rows.
    for (int i = 0; i < mClock.getChildCount(); i++) {
        LinearLayout row = (LinearLayout) mClock.getChildAt(i);

        LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) row.getLayoutParams();
        params.bottomMargin = mRowMargin;
        row.setLayoutParams(params);

        for (int j = 0; j < row.getChildCount(); j++)
            ((TextView) row.getChildAt(j)).setTextSize(TypedValue.COMPLEX_UNIT_PX, mItemSize);
    }
    LinearLayout lastRow = (LinearLayout) mClock.getChildAt(mClock.getChildCount() - 1);
    LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) lastRow.getLayoutParams();
    params.bottomMargin = 0;
    lastRow.setLayoutParams(params);

    TextView twenty = (TextView) findViewById(R.id.twenty);
    params = (LinearLayout.LayoutParams) twenty.getLayoutParams();
    params.leftMargin = 0;
    twenty.setLayoutParams(params);

    // Inflates minutes indicators and attaches them to main view.
    FrameLayout minutesLayout = (FrameLayout) findViewById(R.id.minutes_indicators);
    minutesLayout.removeAllViews();
    LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    final boolean isLandscape = getResources()
            .getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
    inflater.inflate(isLandscape ? R.layout.minutes_land : R.layout.minutes_portrait, minutesLayout);
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
            FrameLayout.LayoutParams.MATCH_PARENT,
            isLandscape ? FrameLayout.LayoutParams.MATCH_PARENT : FrameLayout.LayoutParams.WRAP_CONTENT);
    if (!isLandscape) {
        layoutParams.addRule(RelativeLayout.BELOW, R.id.clock);
        layoutParams.topMargin = (int) -TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mMinutesSize / 3,
                getResources().getDisplayMetrics());
    }
    minutesLayout.setLayoutParams(layoutParams);

    ViewGroup minutesDots = (ViewGroup) findViewById(R.id.minutes_dots);
    for (int i = 0; i < minutesDots.getChildCount(); i++)
        ((TextView) minutesDots.getChildAt(i)).setTextSize(TypedValue.COMPLEX_UNIT_DIP, mMinutesSize);
}

---

From source file:de.mrapp.android.validation.AbstractValidateableView.java

/**
 * Adapts the enable state of all children of a specific view group.
 *
 * @param viewGroup/*from w w w .j  a  v a 2  s  .c  o m*/
 *         The view group, whose children's enabled states should be adapted, as an instance of
 *         the class {@link ViewGroup}. The view group may not be null
 * @param enabled
 *         True, if the children should be enabled, false otherwise
 */
private void setEnabledOnViewGroup(@NonNull final ViewGroup viewGroup, final boolean enabled) {
    viewGroup.setEnabled(enabled);

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

        if (child instanceof ViewGroup) {
            setEnabledOnViewGroup((ViewGroup) child, enabled);
        } else {
            child.setEnabled(enabled);
        }
    }
}

---

From source file:de.mrapp.android.validation.AbstractValidateableView.java

/**
 * Adapts the activated state of all children of a specific view group.
 *
 * @param viewGroup//from  w  ww .ja v a2  s .  c  o m
 *         The view group, whose children's activated states should be adapted, as an instance
 *         of the class {@link ViewGroup}. The view group may not be null
 * @param activated
 *         True, if the children should be activated, false otherwise
 */
private void setActivatedOnViewGroup(@NonNull final ViewGroup viewGroup, final boolean activated) {
    viewGroup.setActivated(activated);

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

        if (child instanceof ViewGroup) {
            setActivatedOnViewGroup((ViewGroup) child, activated);
        } else {
            child.setActivated(activated);
        }
    }
}

---

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