方便Boolean属性复制
代码摘自 android.view.accessibility.AccessibilityNodeInfo
//*****************************************************
// Boolean attributes.
private static final int BOOLEAN_PROPERTY_CHECKABLE = 0x00000001;
private static final int BOOLEAN_PROPERTY_CHECKED = 0x00000002;
private static final int BOOLEAN_PROPERTY_FOCUSABLE = 0x00000004;
private static final int BOOLEAN_PROPERTY_FOCUSED = 0x00000008;
private static final int BOOLEAN_PROPERTY_SELECTED = 0x00000010;
private static final int BOOLEAN_PROPERTY_CLICKABLE = 0x00000020;
private static final int BOOLEAN_PROPERTY_LONG_CLICKABLE = 0x00000040;
private static final int BOOLEAN_PROPERTY_ENABLED = 0x00000080;
private static final int BOOLEAN_PROPERTY_PASSWORD = 0x00000100;
private static final int BOOLEAN_PROPERTY_SCROLLABLE = 0x00000200;
private static final int BOOLEAN_PROPERTY_ACCESSIBILITY_FOCUSED = 0x00000400;
private static final int BOOLEAN_PROPERTY_VISIBLE_TO_USER = 0x00000800;
private static final int BOOLEAN_PROPERTY_EDITABLE = 0x00001000;
private static final int BOOLEAN_PROPERTY_OPENS_POPUP = 0x00002000;
//*****************************************************
/**
* Gets the value of a boolean property.
*
* @param property The property.
* @return The value.
*/
private boolean getBooleanProperty(int property) {
return (mBooleanProperties & property) != 0;
}
/**
* Sets a boolean property.
*
* @param property The property.
* @param value The value.
*
* @throws IllegalStateException If called from an AccessibilityService.
*/
private void setBooleanProperty(int property, boolean value) {
enforceNotSealed();
if (value) {
mBooleanProperties |= property;
} else {
mBooleanProperties &= ~property;
}
}
//*****************************************************
/**
* Gets whether this node is checkable.
*
* @return True if the node is checkable.
*/
public boolean isCheckable() {
return getBooleanProperty(BOOLEAN_PROPERTY_CHECKABLE);
}
/**
* Sets whether this node is checkable.
* <p>
* <strong>Note:</strong> Cannot be called from an
* {@link android.accessibilityservice.AccessibilityService}.
* This class is made immutable before being delivered to an AccessibilityService.
* </p>
*
* @param checkable True if the node is checkable.
*
* @throws IllegalStateException If called from an AccessibilityService.
*/
public void setCheckable(boolean checkable) {
setBooleanProperty(BOOLEAN_PROPERTY_CHECKABLE, checkable);
}