Examples with ViewParent android.view.ViewParent used on opensource projects

Example 76 with ViewParent

use of android.view.ViewParent in project actor-platform by actorapp.

the class VerticalViewPager method arrowScroll.

public boolean arrowScroll(int direction) {
    View currentFocused = findFocus();
    if (currentFocused == this) {
        currentFocused = null;
    } else if (currentFocused != null) {
        boolean isChild = false;
        for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent.getParent()) {
            if (parent == this) {
                isChild = true;
                break;
            }
        }
        if (!isChild) {
            // This would cause the focus search down below to fail in fun ways.
            final StringBuilder sb = new StringBuilder();
            sb.append(currentFocused.getClass().getSimpleName());
            for (ViewParent parent = currentFocused.getParent(); parent instanceof ViewGroup; parent = parent.getParent()) {
                sb.append(" => ").append(parent.getClass().getSimpleName());
            }
            Log.e(TAG, "arrowScroll tried to find focus based on non-child " + "current focused view " + sb.toString());
            currentFocused = null;
        }
    }
    boolean handled = false;
    View nextFocused = FocusFinder.getInstance().findNextFocus(this, currentFocused, direction);
    if (nextFocused != null && nextFocused != currentFocused) {
        if (direction == View.FOCUS_UP) {
            // If there is nothing to the left, or this is causing us to
            // jump to the right, then what we really want to do is page left.
            final int nextTop = getChildRectInPagerCoordinates(mTempRect, nextFocused).top;
            final int currTop = getChildRectInPagerCoordinates(mTempRect, currentFocused).top;
            if (currentFocused != null && nextTop >= currTop) {
                handled = pageUp();
            } else {
                handled = nextFocused.requestFocus();
            }
        } else if (direction == View.FOCUS_DOWN) {
            // If there is nothing to the right, or this is causing us to
            // jump to the left, then what we really want to do is page right.
            final int nextDown = getChildRectInPagerCoordinates(mTempRect, nextFocused).bottom;
            final int currDown = getChildRectInPagerCoordinates(mTempRect, currentFocused).bottom;
            if (currentFocused != null && nextDown <= currDown) {
                handled = pageDown();
            } else {
                handled = nextFocused.requestFocus();
            }
        }
    } else if (direction == FOCUS_UP || direction == FOCUS_BACKWARD) {
        // Trying to move left and nothing there; try to page.
        handled = pageUp();
    } else if (direction == FOCUS_DOWN || direction == FOCUS_FORWARD) {
        // Trying to move right and nothing there; try to page.
        handled = pageDown();
    }
    if (handled) {
        playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
    }
    return handled;
}

Example 77 with ViewParent

use of android.view.ViewParent in project material-intro-screen by TangoAgency.

the class CustomViewPager method onTouchEvent.

@Override
public boolean onTouchEvent(MotionEvent ev) {
    if (mFakeDragging) {
        // (It is likely that the user is multi-touching the screen.)
        return true;
    }
    if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) {
        // descendants.
        return false;
    }
    if (mAdapter == null || mAdapter.getCount() == 0) {
        // Nothing to present or scroll; nothing to touch.
        return false;
    }
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    }
    mVelocityTracker.addMovement(ev);
    final int action = ev.getAction();
    boolean needsInvalidate = false;
    switch(action & MotionEventCompat.ACTION_MASK) {
        case MotionEvent.ACTION_DOWN:
            {
                mScroller.abortAnimation();
                mPopulatePending = false;
                populate();
                // Remember where the motion event started
                mLastMotionX = mInitialMotionX = ev.getX();
                mLastMotionY = mInitialMotionY = ev.getY();
                mActivePointerId = ev.getPointerId(0);
                break;
            }
        case MotionEvent.ACTION_MOVE:
            if (!mIsBeingDragged) {
                final int pointerIndex = ev.findPointerIndex(mActivePointerId);
                if (pointerIndex == -1) {
                    // A child has consumed some touch events and put us into an inconsistent
                    // state.
                    needsInvalidate = resetTouch();
                    break;
                }
                final float x = ev.getX(pointerIndex);
                final float xDiff = Math.abs(x - mLastMotionX);
                final float y = ev.getY(pointerIndex);
                final float yDiff = Math.abs(y - mLastMotionY);
                if (DEBUG) {
                    Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);
                }
                if (xDiff > mTouchSlop && xDiff > yDiff) {
                    if (DEBUG)
                        Log.v(TAG, "Starting drag!");
                    mIsBeingDragged = true;
                    requestParentDisallowInterceptTouchEvent(true);
                    mLastMotionX = x - mInitialMotionX > 0 ? mInitialMotionX + mTouchSlop : mInitialMotionX - mTouchSlop;
                    mLastMotionY = y;
                    setScrollState(SCROLL_STATE_DRAGGING);
                    setScrollingCacheEnabled(true);
                    // Disallow Parent Intercept, just in case
                    ViewParent parent = getParent();
                    if (parent != null) {
                        parent.requestDisallowInterceptTouchEvent(true);
                    }
                }
            }
            // Not else! Note that mIsBeingDragged can be set above.
            if (mIsBeingDragged) {
                // Scroll to follow the motion event
                final int activePointerIndex = ev.findPointerIndex(mActivePointerId);
                final float x = ev.getX(activePointerIndex);
                needsInvalidate |= performDrag(x);
            }
            break;
        case MotionEvent.ACTION_UP:
            if (mIsBeingDragged) {
                final VelocityTracker velocityTracker = mVelocityTracker;
                velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
                int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId);
                mPopulatePending = true;
                final int width = getClientWidth();
                final int scrollX = getScrollX();
                final ItemInfo ii = infoForCurrentScrollPosition();
                final float marginOffset = (float) mPageMargin / width;
                final int currentPage = ii.position;
                final float pageOffset = (((float) scrollX / width) - ii.offset) / (ii.widthFactor + marginOffset);
                final int activePointerIndex = ev.findPointerIndex(mActivePointerId);
                final float x = ev.getX(activePointerIndex);
                final int totalDelta = (int) (x - mInitialMotionX);
                int nextPage = determineTargetPage(currentPage, pageOffset, initialVelocity, totalDelta);
                setCurrentItemInternal(nextPage, true, true, initialVelocity);
                needsInvalidate = resetTouch();
            }
            break;
        case MotionEvent.ACTION_CANCEL:
            if (mIsBeingDragged) {
                scrollToItem(mCurItem, true, 0, false);
                needsInvalidate = resetTouch();
            }
            break;
        case MotionEventCompat.ACTION_POINTER_DOWN:
            {
                final int index = MotionEventCompat.getActionIndex(ev);
                final float x = ev.getX(index);
                mLastMotionX = x;
                mActivePointerId = ev.getPointerId(index);
                break;
            }
        case MotionEventCompat.ACTION_POINTER_UP:
            onSecondaryPointerUp(ev);
            mLastMotionX = ev.getX(ev.findPointerIndex(mActivePointerId));
            break;
    }
    if (needsInvalidate) {
        ViewCompat.postInvalidateOnAnimation(this);
    }
    return true;
}

Example 78 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class PhoneWindow method openPanel.

private void openPanel(PanelFeatureState st, KeyEvent event) {
    // Already open, return
    if (st.isOpen || isDestroyed()) {
        return;
    }
    // (The app should be using an action bar for menu items.)
    if (st.featureId == FEATURE_OPTIONS_PANEL) {
        Context context = getContext();
        Configuration config = context.getResources().getConfiguration();
        boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE;
        boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.HONEYCOMB;
        if (isXLarge && isHoneycombApp) {
            return;
        }
    }
    Callback cb = getCallback();
    if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
        // Callback doesn't want the menu to open, reset any state
        closePanel(st, true);
        return;
    }
    final WindowManager wm = getWindowManager();
    if (wm == null) {
        return;
    }
    // Prepare panel (should have been done before, but just in case)
    if (!preparePanel(st, event)) {
        return;
    }
    int width = WRAP_CONTENT;
    if (st.decorView == null || st.refreshDecorView) {
        if (st.decorView == null) {
            // Initialize the panel decor, this will populate st.decorView
            if (!initializePanelDecor(st) || (st.decorView == null))
                return;
        } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
            // Decor needs refreshing, so remove its views
            st.decorView.removeAllViews();
        }
        // This will populate st.shownPanelView
        if (!initializePanelContent(st) || !st.hasPanelItems()) {
            return;
        }
        ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
        if (lp == null) {
            lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
        }
        int backgroundResId;
        if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
            // If the contents is fill parent for the width, set the
            // corresponding background
            backgroundResId = st.fullBackground;
            width = MATCH_PARENT;
        } else {
            // Otherwise, set the normal panel background
            backgroundResId = st.background;
        }
        st.decorView.setWindowBackground(getContext().getResources().getDrawable(backgroundResId));
        ViewParent shownPanelParent = st.shownPanelView.getParent();
        if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
            ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
        }
        st.decorView.addView(st.shownPanelView, lp);
        /*
             * Give focus to the view, if it or one of its children does not
             * already have it.
             */
        if (!st.shownPanelView.hasFocus()) {
            st.shownPanelView.requestFocus();
        }
    } else if (!st.isInListMode()) {
        width = MATCH_PARENT;
    } else if (st.createdPanelView != null) {
        // If we already had a panel view, carry width=MATCH_PARENT through
        // as we did above when it was created.
        ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
        if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
            width = MATCH_PARENT;
        }
    }
    st.isOpen = true;
    st.isHandled = false;
    WindowManager.LayoutParams lp = new WindowManager.LayoutParams(width, WRAP_CONTENT, st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG, WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH, st.decorView.mDefaultOpacity);
    if (st.isCompact) {
        lp.gravity = getOptionsPanelGravity();
        sRotationWatcher.addWindow(this);
    } else {
        lp.gravity = st.gravity;
    }
    lp.windowAnimations = st.windowAnimations;
    wm.addView(st.decorView, lp);
// Log.v(TAG, "Adding main menu to window manager.");
}

Example 79 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class PagedView method focusableViewAvailable.

/**
     * If one of our descendant views decides that it could be focused now, only
     * pass that along if it's on the current page.
     *
     * This happens when live folders requery, and if they're off page, they
     * end up calling requestFocus, which pulls it on page.
     */
@Override
public void focusableViewAvailable(View focused) {
    View current = getPageAt(mCurrentPage);
    View v = focused;
    while (true) {
        if (v == current) {
            super.focusableViewAvailable(focused);
            return;
        }
        if (v == this) {
            return;
        }
        ViewParent parent = v.getParent();
        if (parent instanceof View) {
            v = (View) v.getParent();
        } else {
            return;
        }
    }
}

Example 80 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class PagedView method getPageForView.

public int getPageForView(View v) {
    int result = -1;
    if (v != null) {
        ViewParent vp = v.getParent();
        int count = getChildCount();
        for (int i = 0; i < count; i++) {
            if (vp == getPageAt(i)) {
                return i;
            }
        }
    }
    return result;
}