Example usage for android.view ViewGroup FOCUS_AFTER_DESCENDANTS

Introduction

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

Prototype

int FOCUS_AFTER_DESCENDANTS

To view the source code for android.view ViewGroup FOCUS_AFTER_DESCENDANTS.

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Document

This view will get focus only if none of its descendants want it.

Usage

From source file:com.ferdi2005.secondgram.support.widget.RecyclerView.java

public RecyclerView(Context context, @Nullable AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    if (attrs != null) {
        TypedArray a = context.obtainStyledAttributes(attrs, CLIP_TO_PADDING_ATTR, defStyle, 0);
        mClipToPadding = a.getBoolean(0, true);
        a.recycle();//from w  ww .j a  va  2 s .  co  m
    } else {
        mClipToPadding = true;
    }
    setScrollContainer(true);
    setFocusableInTouchMode(true);

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMinFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mMaxFlingVelocity = vc.getScaledMaximumFlingVelocity();
    setWillNotDraw(getOverScrollMode() == View.OVER_SCROLL_NEVER);

    mItemAnimator.setListener(mItemAnimatorListener);
    initAdapterManager();
    initChildrenHelper();
    // If not explicitly specified this view is important for accessibility.
    if (ViewCompat.getImportantForAccessibility(this) == ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
        ViewCompat.setImportantForAccessibility(this, ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES);
    }
    mAccessibilityManager = (AccessibilityManager) getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
    setAccessibilityDelegateCompat(new RecyclerViewAccessibilityDelegate(this));
    // Create the layoutManager if specified.

    boolean nestedScrollingEnabled = true;

    setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);

    // Re-set whether nested scrolling is enabled so that it is set on all API levels
    setNestedScrollingEnabled(nestedScrollingEnabled);
}

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From source file:android.car.ui.provider.CarDrawerLayout.java

/**
 * Open the drawer view by animating it into view.
 *//*w w  w  .j  a  v  a  2s  . c  o  m*/
public void openDrawer() {
    ViewGroup drawerView = (ViewGroup) findDrawerView();
    mStartedOpen = false;

    if (hasWindowFocus()) {
        int left;
        LayoutParams drawerLp = (LayoutParams) drawerView.getLayoutParams();
        if (checkDrawerViewAbsoluteGravity(drawerView, Gravity.LEFT)) {
            left = drawerLp.getMarginStart();
        } else {
            left = drawerLp.getMarginStart() + getWidth() - drawerView.getWidth();
        }
        mDragger.smoothSlideViewTo(drawerView, left, drawerView.getTop());
        dispatchOnDrawerOpening(drawerView);
    } else {
        final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams();
        lp.onScreen = 1.f;
        dispatchOnDrawerOpened(drawerView);
    }

    ViewGroup contentView = (ViewGroup) findContentView();
    contentView.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
    drawerView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);

    View focusable = drawerView.getChildAt(0);
    if (focusable != null) {
        focusable.requestFocus();
    }
    invalidate();
}

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From source file:android.car.ui.provider.CarDrawerLayout.java

/**
 * Close the specified drawer view by animating it into view.
 *///from  w  ww  .j ava  2  s . com
public void closeDrawer() {
    ViewGroup drawerView = (ViewGroup) findDrawerView();
    if (!isDrawerView(drawerView)) {
        throw new IllegalArgumentException("View " + drawerView + " is not a sliding drawer");
    }
    mStartedOpen = true;

    // Don't trigger the close drawer animation if drawer is not open.
    if (hasWindowFocus() && isDrawerOpen()) {
        int left;
        LayoutParams drawerLp = (LayoutParams) drawerView.getLayoutParams();
        if (checkDrawerViewAbsoluteGravity(drawerView, Gravity.LEFT)) {
            left = drawerLp.getMarginStart() - drawerView.getWidth();
        } else {
            left = drawerLp.getMarginStart() + getWidth();
        }
        mDragger.smoothSlideViewTo(drawerView, left, drawerView.getTop());
        dispatchOnDrawerClosing(drawerView);
    } else {
        final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams();
        lp.onScreen = 0.f;
        dispatchOnDrawerClosed(drawerView);
    }

    ViewGroup contentView = (ViewGroup) findContentView();
    drawerView.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
    contentView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);

    if (!isInTouchMode()) {
        List<View> focusables = contentView.getFocusables(FOCUS_DOWN);
        if (focusables.size() > 0) {
            View candidate = focusables.get(0);
            candidate.requestFocus();
        }
    }
    invalidate();
}

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From source file:org.mozilla.gecko.BrowserApp.java

@Override
public void onTabsLayoutChange(int width, int height) {
    int animationLength = TABS_ANIMATION_DURATION;

    if (mMainLayoutAnimator != null) {
        animationLength = Math.max(1, animationLength - (int) mMainLayoutAnimator.getRemainingTime());
        mMainLayoutAnimator.stop(false);
    }// www .j a  v a2 s .c o  m

    if (areTabsShown()) {
        mTabsPanel.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
        // Hide the web content from accessibility tools even though it's visible
        // so that you can't examine it as long as the tabs are being shown.
        if (Versions.feature16Plus) {
            mLayerView.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
        }
    } else {
        if (Versions.feature16Plus) {
            mLayerView.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
        }
    }

    mMainLayoutAnimator = new PropertyAnimator(animationLength, sTabsInterpolator);
    mMainLayoutAnimator.addPropertyAnimationListener(this);
    mMainLayoutAnimator.attach(mMainLayout, PropertyAnimator.Property.SCROLL_Y, -height);

    mTabsPanel.prepareTabsAnimation(mMainLayoutAnimator);
    mBrowserToolbar.triggerTabsPanelTransition(mMainLayoutAnimator, areTabsShown());

    // If the tabs panel is animating onto the screen, pin the dynamic
    // toolbar.
    if (mDynamicToolbar.isEnabled()) {
        if (width > 0 && height > 0) {
            mDynamicToolbar.setPinned(true, PinReason.RELAYOUT);
            mDynamicToolbar.setVisible(true, VisibilityTransition.ANIMATE);
        } else {
            mDynamicToolbar.setPinned(false, PinReason.RELAYOUT);
        }
    }

    mMainLayoutAnimator.start();
}

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