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:net.peterkuterna.android.apps.devoxxfrsched.ui.tablet.ScheduleMultiPaneActivity.java

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);

    ViewGroup detailContainer = (ViewGroup) findViewById(R.id.fragment_container_schedule_detail);
    if (detailContainer != null && detailContainer.getChildCount() > 0) {
        findViewById(R.id.fragment_container_schedule_detail).setBackgroundColor(0);
    }/*from   w  w w  .j a v a2 s .  c o  m*/
}

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From source file:me.xiaopan.vpc.ViewPagerCompat.java

@Override
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();
        // 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, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }// w w w. j a  va  2 s .com
        }
    }

    if (checkV) {
        // Direct call ViewPager.canScrollHorizontally(int)
        if (v instanceof ViewPager) {
            return ((ViewPager) v).canScrollHorizontally(-dx);
        } else {
            return ViewCompat.canScrollHorizontally(v, -dx);
        }
    } else {
        return false;
    }
}

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From source file:com.hitherejoe.animate.util.MorphButtonToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null)
        return null;

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);

    if (startColor == null || endColor == null)
        return null;

    MorphDrawable background = new MorphDrawable(startColor, 0);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);

    // ease in the dialog's child views (slide up & fade_fast in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);//from ww  w .  j  a v  a 2s . c o  m
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in));
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:cn.edu.zucc.list.FabAnimation.MorphFabToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }/*w  w  w . j a v a  2s  .c  om*/

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:com.liyu.huahui.ui.widgets.MorphFabToDialog.java

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override//w  w w. j  av a 2  s  .  c  o  m
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:com.sinyuk.jianyi.utils.morph.MorphFabToDialog.java

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override//w  w w .java2  s  .c  om
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

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From source file:com.tomeokin.lspush.ui.widget.SwipeRefreshLayoutWithEmpty.java

@Override
public boolean canChildScrollUp() {
    // The swipe refresh layout has 2 children; the circle refresh indicator
    // and the view container. The container is needed here
    ViewGroup container = getContainer();
    if (container == null) {
        return false;
    }//from  w w w. j av a2  s  . co m

    // The container has 2 children; the empty view and the scrollable view.
    if (container.getChildCount() != 2) {
        throw new RuntimeException("Container must have an empty view and content view");
    }

    // Use whichever one is visible and test that it can scroll
    View view = container.getChildAt(0);
    if (view.getVisibility() != View.VISIBLE) {
        view = container.getChildAt(1);
    }

    return ViewCompat.canScrollVertically(view, -1);
}

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From source file:net.peterkuterna.android.apps.devoxxfrsched.ui.SpeakersActivity.java

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);

    ViewGroup detailContainer = (ViewGroup) findViewById(R.id.fragment_container_speaker_detail);
    if (detailContainer != null && detailContainer.getChildCount() > 0) {
        findViewById(R.id.fragment_container_speaker_detail).setBackgroundColor(0xffffffff);
    }/*from   ww w.ja v  a2s  . c o  m*/
}

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From source file:com.github.windsekirun.navermaptest.NMapFragment.java

/**
 * Fragment? ?? NMapView ? /*w  w w.j av  a2s. c o m*/
 */
public NMapView findMapView(View v) {

    if (!(v instanceof ViewGroup)) {
        return null;
    }

    ViewGroup vg = (ViewGroup) v;
    if (vg instanceof NMapView) {
        return (NMapView) vg;
    }

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

        View child = vg.getChildAt(i);
        if (!(child instanceof ViewGroup)) {
            continue;
        }

        NMapView mapView = findMapView(child);
        if (mapView != null) {
            return mapView;
        }
    }
    return null;
}

---

From source file:com.hitherejoe.animate.util.MorphFabToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }//from  ww w. j  a v  a  2  s. c  o m

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade_fast in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in));
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

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