Example usage for android.view.accessibility AccessibilityNodeInfo ACTION_SCROLL_FORWARD

List of usage examples for android.view.accessibility AccessibilityNodeInfo ACTION_SCROLL_FORWARD

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Introduction

In this page you can find the example usage for android.view.accessibility AccessibilityNodeInfo ACTION_SCROLL_FORWARD.

Prototype

int ACTION_SCROLL_FORWARD

To view the source code for android.view.accessibility AccessibilityNodeInfo ACTION_SCROLL_FORWARD.

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Document

Action to scroll the node content forward.

Usage

From source file:com.a.mirko.android.datetimepicker.time.RadialPickerLayout.java

/**
 * When scroll forward/backward events are received, jump the time to the higher/lower
 * discrete, visible value on the circle.
 *//* w  w w  .  j a  v  a2s .  co  m*/
@SuppressLint("NewApi")
@Override
public boolean performAccessibilityAction(int action, Bundle arguments) {
    if (super.performAccessibilityAction(action, arguments)) {
        return true;
    }

    int changeMultiplier = 0;
    if (action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD) {
        changeMultiplier = 1;
    } else if (action == AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD) {
        changeMultiplier = -1;
    }
    if (changeMultiplier != 0) {
        int value = getCurrentlyShowingValue();
        int stepSize = 0;
        int currentItemShowing = getCurrentItemShowing();
        if (currentItemShowing == HOUR_INDEX) {
            stepSize = HOUR_VALUE_TO_DEGREES_STEP_SIZE;
            value %= 12;
        } else if (currentItemShowing == MINUTE_INDEX) {
            stepSize = MINUTE_VALUE_TO_DEGREES_STEP_SIZE;
        }

        int degrees = value * stepSize;
        degrees = snapOnly30s(degrees, changeMultiplier);
        value = degrees / stepSize;
        int maxValue = 0;
        int minValue = 0;
        if (currentItemShowing == HOUR_INDEX) {
            if (mIs24HourMode) {
                maxValue = 23;
            } else {
                maxValue = 12;
                minValue = 1;
            }
        } else {
            maxValue = 55;
        }
        if (value > maxValue) {
            // If we scrolled forward past the highest number, wrap around to the lowest.
            value = minValue;
        } else if (value < minValue) {
            // If we scrolled backward past the lowest number, wrap around to the highest.
            value = maxValue;
        }
        setItem(currentItemShowing, value);
        mListener.onValueSelected(currentItemShowing, value, false);
        return true;
    }

    return false;
}

From source file:com.borax12.materialdaterangepicker.single.time.RadialPickerLayout.java

/**
 * Necessary for accessibility, to ensure we support "scrolling" forward and backward
 * in the circle.//www  . j  a  v  a 2 s  . co  m
 */
@Override
@SuppressWarnings("deprecation")
public void onInitializeAccessibilityNodeInfo(@NonNull AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    if (Build.VERSION.SDK_INT >= 21) {
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
    } else {
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
    }
}

From source file:com.customdatepicker.time.RadialPickerLayout.java

/**
 * Necessary for accessibility, to ensure we support "scrolling" forward and backward
 * in the circle./* w  w w  . j a  v a2 s .co  m*/
 */
@Override
@SuppressWarnings("deprecation")
public void onInitializeAccessibilityNodeInfo(@NonNull AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    if (Build.VERSION.SDK_INT >= 21) {
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
    } else if (Build.VERSION.SDK_INT >= 16) {
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
    } else {
        info.addAction(AccessibilityNodeInfoCompat.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfoCompat.ACTION_SCROLL_BACKWARD);
    }
}

From source file:com.jarklee.materialdatetimepicker.time.RadialPickerLayout.java

/**
 * Necessary for accessibility, to ensure we support "scrolling" forward and backward
 * in the circle./*from   w w  w.  j a v  a  2 s .c o  m*/
 */
@Override
@SuppressWarnings("deprecation")
public void onInitializeAccessibilityNodeInfo(@NonNull AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    if (Build.VERSION.SDK_INT >= 21) {
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
    } else {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }
}

From source file:com.borax12.materialdaterangepicker.single.time.RadialPickerLayout.java

/**
 * When scroll forward/backward events are received, jump the time to the higher/lower
 * discrete, visible value on the circle.
 *///  w  ww. j ava  2 s .c om
@SuppressLint("NewApi")
@Override
public boolean performAccessibilityAction(int action, Bundle arguments) {
    if (super.performAccessibilityAction(action, arguments)) {
        return true;
    }

    int changeMultiplier = 0;
    if (action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD) {
        changeMultiplier = 1;
    } else if (action == AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD) {
        changeMultiplier = -1;
    }
    if (changeMultiplier != 0) {
        int value = getCurrentlyShowingValue();
        int stepSize = 0;
        int currentItemShowing = getCurrentItemShowing();
        if (currentItemShowing == HOUR_INDEX) {
            stepSize = HOUR_VALUE_TO_DEGREES_STEP_SIZE;
            value %= 12;
        } else if (currentItemShowing == MINUTE_INDEX) {
            stepSize = MINUTE_VALUE_TO_DEGREES_STEP_SIZE;
        } else if (currentItemShowing == SECOND_INDEX) {
            stepSize = SECOND_VALUE_TO_DEGREES_STEP_SIZE;
        }

        int degrees = value * stepSize;
        degrees = snapOnly30s(degrees, changeMultiplier);
        value = degrees / stepSize;
        int maxValue = 0;
        int minValue = 0;
        if (currentItemShowing == HOUR_INDEX) {
            if (mIs24HourMode) {
                maxValue = 23;
            } else {
                maxValue = 12;
                minValue = 1;
            }
        } else {
            maxValue = 55;
        }
        if (value > maxValue) {
            // If we scrolled forward past the highest number, wrap around to the lowest.
            value = minValue;
        } else if (value < minValue) {
            // If we scrolled backward past the lowest number, wrap around to the highest.
            value = maxValue;
        }

        Timepoint newSelection;
        switch (currentItemShowing) {
        case HOUR_INDEX:
            newSelection = new Timepoint(value, mCurrentTime.getMinute(), mCurrentTime.getSecond());
            break;
        case MINUTE_INDEX:
            newSelection = new Timepoint(mCurrentTime.getHour(), value, mCurrentTime.getSecond());
            break;
        case SECOND_INDEX:
            newSelection = new Timepoint(mCurrentTime.getHour(), mCurrentTime.getMinute(), value);
            break;
        default:
            newSelection = mCurrentTime;
        }

        setItem(currentItemShowing, newSelection);
        mListener.onValueSelected(newSelection);
        return true;
    }

    return false;
}

From source file:com.customdatepicker.time.RadialPickerLayout.java

/**
 * When scroll forward/backward events are received, jump the time to the higher/lower
 * discrete, visible value on the circle.
 */// w  ww  .  j  a va  2 s  . c om
@Override
public boolean performAccessibilityAction(int action, Bundle arguments) {
    if (super.performAccessibilityAction(action, arguments)) {
        return true;
    }

    int changeMultiplier = 0;
    int forward;
    int backward;
    if (Build.VERSION.SDK_INT >= 16) {
        forward = AccessibilityNodeInfo.ACTION_SCROLL_FORWARD;
        backward = AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD;
    } else {
        forward = AccessibilityNodeInfoCompat.ACTION_SCROLL_FORWARD;
        backward = AccessibilityNodeInfoCompat.ACTION_SCROLL_BACKWARD;
    }
    if (action == forward) {
        changeMultiplier = 1;
    } else if (action == backward) {
        changeMultiplier = -1;
    }
    if (changeMultiplier != 0) {
        int value = getCurrentlyShowingValue();
        int stepSize = 0;
        int currentItemShowing = getCurrentItemShowing();
        if (currentItemShowing == HOUR_INDEX) {
            stepSize = HOUR_VALUE_TO_DEGREES_STEP_SIZE;
            value %= 12;
        } else if (currentItemShowing == MINUTE_INDEX) {
            stepSize = MINUTE_VALUE_TO_DEGREES_STEP_SIZE;
        } else if (currentItemShowing == SECOND_INDEX) {
            stepSize = SECOND_VALUE_TO_DEGREES_STEP_SIZE;
        }

        int degrees = value * stepSize;
        degrees = snapOnly30s(degrees, changeMultiplier);
        value = degrees / stepSize;
        int maxValue = 0;
        int minValue = 0;
        if (currentItemShowing == HOUR_INDEX) {
            if (mIs24HourMode) {
                maxValue = 23;
            } else {
                maxValue = 12;
                minValue = 1;
            }
        } else {
            maxValue = 55;
        }
        if (value > maxValue) {
            // If we scrolled forward past the highest number, wrap around to the lowest.
            value = minValue;
        } else if (value < minValue) {
            // If we scrolled backward past the lowest number, wrap around to the highest.
            value = maxValue;
        }

        Timepoint newSelection;
        switch (currentItemShowing) {
        case HOUR_INDEX:
            newSelection = new Timepoint(value, mCurrentTime.getMinute(), mCurrentTime.getSecond());
            break;
        case MINUTE_INDEX:
            newSelection = new Timepoint(mCurrentTime.getHour(), value, mCurrentTime.getSecond());
            break;
        case SECOND_INDEX:
            newSelection = new Timepoint(mCurrentTime.getHour(), mCurrentTime.getMinute(), value);
            break;
        default:
            newSelection = mCurrentTime;
        }

        setItem(currentItemShowing, newSelection);
        mListener.onValueSelected(newSelection);
        return true;
    }

    return false;
}

From source file:android.widget.Gallery.java

@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    info.setClassName(Gallery.class.getName());
    info.setScrollable(mItemCount > 1);
    if (isEnabled()) {
        if (mItemCount > 0 && mSelectedPosition < mItemCount - 1) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }/*  www  .  ja  va 2  s. com*/
        if (isEnabled() && mItemCount > 0 && mSelectedPosition > 0) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }
}

From source file:com.common.widget.hzlib.AbsListView.java

@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        info.setClassName(AbsListView.class.getName());
    }/*  ww  w .j  a  v  a 2s. c  o  m*/
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        if (isEnabled()) {
            if (getFirstVisiblePosition() > 0) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
            }
            if (getLastVisiblePosition() < getCount() - 1) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
            }
        }
    }
}

From source file:android.widget.Gallery.java

@Override
public boolean performAccessibilityAction(int action, Bundle arguments) {
    if (super.performAccessibilityAction(action, arguments)) {
        return true;
    }/*  ww w  .ja  v a 2s.  c o m*/
    switch (action) {
    case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: {
        if (isEnabled() && mItemCount > 0 && mSelectedPosition < mItemCount - 1) {
            final int currentChildIndex = mSelectedPosition - mFirstPosition;
            return scrollToChild(currentChildIndex + 1);
        }
    }
        return false;
    case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: {
        if (isEnabled() && mItemCount > 0 && mSelectedPosition > 0) {
            final int currentChildIndex = mSelectedPosition - mFirstPosition;
            return scrollToChild(currentChildIndex - 1);
        }
    }
        return false;
    }
    return false;
}

From source file:com.appunite.list.AbsHorizontalListView.java

@Override
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        info.setClassName(AbsHorizontalListView.class.getName());
    }/* w w  w .  j a  v  a 2s  .c o m*/
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        if (isEnabled()) {
            if (getFirstVisiblePosition() > 0) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
            }
            if (getLastVisiblePosition() < getCount() - 1) {
                info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
            }
        }
    }
}