Android widget之AppCompatButton

简介

直接继承Button

• 支持textAllCaps回溯到的风格属性 Eclair MR1。
• 通过背景色调方法允许动态色调背景 ViewCompat。
• 允许使用backgroundTint和 设置背景色调backgroundTintMode。

使用

相对Button而言增加了水波纹特效

使用 android:textAllCaps 这个属性可以使英文自动转换大写

公共方法

onInitializeAccessibilityEvent （AccessibilityEvent event）

初始化AccessibilityEvent有关此视图的信息，该事件源是事件源。换句话说，可访问性事件的来源是其状态改变触发触发事件的视图。

示例：设置事件的密码属性以及超级实现设置的属性：

public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
     super.onInitializeAccessibilityEvent(event);
     event.setPassword(true);
 }

onInitializeAccessibilityNodeInfo (AccessibilityNodeInfo info)

使用关于此视图的信息初始化一个可访问性节点信息。基本实现集:

• setParent(View)
• setBoundsInParent(Rect)
• setBoundsInScreen(Rect)
• setPackageName(CharSequence)
• setClassName(CharSequence)
• setContentDescription(CharSequence)
• setEnabled(boolean)
• setClickable(boolean)
• setFocusable(boolean)
• setFocused(boolean)
• setLongClickable(boolean)
• setSelected(boolean)
• setContextClickable(boolean)

子类应该覆盖这个方法，调用super实现，并设置额外的属性。

AccessibilityNodeInfo

此类表示窗口内容的节点以及可从其源请求的操作。从AccessibilityService窗口的角度来看， 内容被呈现为可访问性节点信息的树，其可以或可以不将一对一映射到视图层次结构。换句话说，自定义视图可以自动报告为可访问性节点信息的树。

---

以下摘自

http://android.xsoftlab.net/reference/android/view/accessibility/AccessibilityNodeInfo.html

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Constants
int	ACTION_ACCESSIBILITY_FOCUS	Action that gives accessibility focus to the node.
String	ACTION_ARGUMENT_COLUMN_INT	Argument for specifying the collection column to make visible on screen.
String	ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN	Argument for whether when moving at granularity to extend the selection or to move it otherwise.
String	ACTION_ARGUMENT_HTML_ELEMENT_STRING	Argument for which HTML element to get moving to the next/previous HTML element.
String	ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT	Argument for which movement granularity to be used when traversing the node text.
String	ACTION_ARGUMENT_ROW_INT	Argument for specifying the collection row to make visible on screen.
String	ACTION_ARGUMENT_SELECTION_END_INT	Argument for specifying the selection end.
String	ACTION_ARGUMENT_SELECTION_START_INT	Argument for specifying the selection start.
String	ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE	Argument for specifying the text content to set.
int	ACTION_CLEAR_ACCESSIBILITY_FOCUS	Action that clears accessibility focus of the node.
int	ACTION_CLEAR_FOCUS	Action that clears input focus of the node.
int	ACTION_CLEAR_SELECTION	Action that deselects the node.
int	ACTION_CLICK	Action that clicks on the node info.
int	ACTION_COLLAPSE	Action to collapse an expandable node.
int	ACTION_COPY	Action to copy the current selection to the clipboard.
int	ACTION_CUT	Action to cut the current selection and place it to the clipboard.
int	ACTION_DISMISS	Action to dismiss a dismissable node.
int	ACTION_EXPAND	Action to expand an expandable node.
int	ACTION_FOCUS	Action that gives input focus to the node.
int	ACTION_LONG_CLICK	Action that long clicks on the node.
int	ACTION_NEXT_AT_MOVEMENT_GRANULARITY	Action that requests to go to the next entity in this node’s text at a given movement granularity.
int	ACTION_NEXT_HTML_ELEMENT	Action to move to the next HTML element of a given type.
int	ACTION_PASTE	Action to paste the current clipboard content.
int	ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY	Action that requests to go to the previous entity in this node’s text at a given movement granularity.
int	ACTION_PREVIOUS_HTML_ELEMENT	Action to move to the previous HTML element of a given type.
int	ACTION_SCROLL_BACKWARD	Action to scroll the node content backward.
int	ACTION_SCROLL_FORWARD	Action to scroll the node content forward.
int	ACTION_SELECT	Action that selects the node.
int	ACTION_SET_SELECTION	Action to set the selection.
int	ACTION_SET_TEXT	Action that sets the text of the node.
int	FOCUS_ACCESSIBILITY	The accessibility focus.
int	FOCUS_INPUT	The input focus.
int	MOVEMENT_GRANULARITY_CHARACTER	Movement granularity bit for traversing the text of a node by character.
int	MOVEMENT_GRANULARITY_LINE	Movement granularity bit for traversing the text of a node by line.
int	MOVEMENT_GRANULARITY_PAGE	Movement granularity bit for traversing the text of a node by page.
int	MOVEMENT_GRANULARITY_PARAGRAPH	Movement granularity bit for traversing the text of a node by paragraph.
int	MOVEMENT_GRANULARITY_WORD	Movement granularity bit for traversing the text of a node by word.

Public Methods
void	addAction(AccessibilityNodeInfo.AccessibilityAction action) Adds an action that can be performed on the node.
void	addAction(int action) This method was deprecated in API level 21. This has been deprecated for addAction(AccessibilityAction)
void	addChild(View child) Adds a child.
void	addChild(View root, int virtualDescendantId) Adds a virtual child which is a descendant of the given root.
boolean	canOpenPopup() Gets if this node opens a popup or a dialog.
int	describeContents() Describe the kinds of special objects contained in this Parcelable’s marshalled representation.
boolean	equals(Object object) Compares this instance with the specified object and indicates if they are equal.
List<AccessibilityNodeInfo>	findAccessibilityNodeInfosByText(String text) Finds AccessibilityNodeInfos by text.
List<AccessibilityNodeInfo>	findAccessibilityNodeInfosByViewId(String viewId) Finds AccessibilityNodeInfos by the fully qualified view id’s resource name where a fully qualified id is of the from “package:id/id_resource_name”.
AccessibilityNodeInfo	findFocus(int focus) Find the view that has the specified focus type.
AccessibilityNodeInfo	focusSearch(int direction) Searches for the nearest view in the specified direction that can take the input focus.
List<AccessibilityNodeInfo.AccessibilityAction>	getActionList() Gets the actions that can be performed on the node.
int	getActions() This method was deprecated in API level 21. Use getActionList().
void	getBoundsInParent(Rect outBounds) Gets the node bounds in parent coordinates.
void	getBoundsInScreen(Rect outBounds) Gets the node bounds in screen coordinates.
AccessibilityNodeInfo	getChild(int index) Get the child at given index.
int	getChildCount() Gets the number of children.
CharSequence	getClassName() Gets the class this node comes from.
AccessibilityNodeInfo.CollectionInfo	getCollectionInfo() Gets the collection info if the node is a collection.
AccessibilityNodeInfo.CollectionItemInfo	getCollectionItemInfo() Gets the collection item info if the node is a collection item.
CharSequence	getContentDescription() Gets the content description of this node.
CharSequence	getError() Gets the error text of this node.
Bundle	getExtras() Gets an optional bundle with extra data.
int	getInputType() Gets the input type of the source as defined by InputType.
AccessibilityNodeInfo	getLabelFor() Gets the node info for which the view represented by this info serves as a label for accessibility purposes.
AccessibilityNodeInfo	getLabeledBy() Gets the node info which serves as the label of the view represented by this info for accessibility purposes.
int	getLiveRegion() Gets the node’s live region mode.
int	getMaxTextLength() Returns the maximum text length for this node.
int	getMovementGranularities() Gets the movement granularities for traversing the text of this node.
CharSequence	getPackageName() Gets the package this node comes from.
AccessibilityNodeInfo	getParent() Gets the parent.
AccessibilityNodeInfo.RangeInfo	getRangeInfo() Gets the range info if this node is a range.
CharSequence	getText() Gets the text of this node.
int	getTextSelectionEnd() Gets the text selection end.
int	getTextSelectionStart() Gets the text selection start.
AccessibilityNodeInfo	getTraversalAfter() Gets the node after which this one is visited in accessibility traversal.
AccessibilityNodeInfo	getTraversalBefore() Gets the node before which this one is visited during traversal.
String	getViewIdResourceName() Gets the fully qualified resource name of the source view’s id.
AccessibilityWindowInfo	getWindow() Gets the window to which this node belongs.
int	getWindowId() Gets the id of the window from which the info comes from.
int	hashCode() Returns an integer hash code for this object.
boolean	isAccessibilityFocused() Gets whether this node is accessibility focused.
boolean	isCheckable() Gets whether this node is checkable.
boolean	isChecked() Gets whether this node is checked.
boolean	isClickable() Gets whether this node is clickable.
boolean	isContentInvalid() Gets if the content of this node is invalid.
boolean	isContextClickable() Gets whether this node is context clickable.
boolean	isDismissable() Gets if the node can be dismissed.
boolean	isEditable() Gets if the node is editable.
boolean	isEnabled() Gets whether this node is enabled.
boolean	isFocusable() Gets whether this node is focusable.
boolean	isFocused() Gets whether this node is focused.
boolean	isLongClickable() Gets whether this node is long clickable.
boolean	isMultiLine() Gets if the node is a multi line editable text.
boolean	isPassword() Gets whether this node is a password.
boolean	isScrollable() Gets if the node is scrollable.
boolean	isSelected() Gets whether this node is selected.
boolean	isVisibleToUser() Gets whether this node is visible to the user.
static AccessibilityNodeInfo	obtain(View root, int virtualDescendantId) Returns a cached instance if such is available otherwise a new one and sets the source.
static AccessibilityNodeInfo	obtain() Returns a cached instance if such is available otherwise a new one.
static AccessibilityNodeInfo	obtain(View source) Returns a cached instance if such is available otherwise a new one and sets the source.
static AccessibilityNodeInfo	obtain(AccessibilityNodeInfo info) Returns a cached instance if such is available or a new one is create.
boolean	performAction(int action) Performs an action on the node.
boolean	performAction(int action, Bundle arguments) Performs an action on the node.
void	recycle() Return an instance back to be reused.
boolean	refresh() Refreshes this info with the latest state of the view it represents.
void	removeAction(int action) This method was deprecated in API level 21. Use removeAction(AccessibilityAction)
boolean	removeAction(AccessibilityNodeInfo.AccessibilityAction action) Removes an action that can be performed on the node.
boolean	removeChild(View root, int virtualDescendantId) Removes a virtual child which is a descendant of the given root.
boolean	removeChild(View child) Removes a child.
void	setAccessibilityFocused(boolean focused) Sets whether this node is accessibility focused.
void	setBoundsInParent(Rect bounds) Sets the node bounds in parent coordinates.
void	setBoundsInScreen(Rect bounds) Sets the node bounds in screen coordinates.
void	setCanOpenPopup(boolean opensPopup) Sets if this node opens a popup or a dialog.
void	setCheckable(boolean checkable) Sets whether this node is checkable.
void	setChecked(boolean checked) Sets whether this node is checked.
void	setClassName(CharSequence className) Sets the class this node comes from.
void	setClickable(boolean clickable) Sets whether this node is clickable.
void	setCollectionInfo(AccessibilityNodeInfo.CollectionInfo collectionInfo) Sets the collection info if the node is a collection.
void	setCollectionItemInfo(AccessibilityNodeInfo.CollectionItemInfo collectionItemInfo) Sets the collection item info if the node is a collection item.
void	setContentDescription(CharSequence contentDescription) Sets the content description of this node.
void	setContentInvalid(boolean contentInvalid) Sets if the content of this node is invalid.
void	setContextClickable(boolean contextClickable) Sets whether this node is context clickable.
void	setDismissable(boolean dismissable) Sets if the node can be dismissed.
void	setEditable(boolean editable) Sets whether this node is editable.
void	setEnabled(boolean enabled) Sets whether this node is enabled.
void	setError(CharSequence error) Sets the error text of this node.
void	setFocusable(boolean focusable) Sets whether this node is focusable.
void	setFocused(boolean focused) Sets whether this node is focused.
void	setInputType(int inputType) Sets the input type of the source as defined by InputType.
void	setLabelFor(View labeled) Sets the view for which the view represented by this info serves as a label for accessibility purposes.
void	setLabelFor(View root, int virtualDescendantId) Sets the view for which the view represented by this info serves as a label for accessibility purposes.
void	setLabeledBy(View label) Sets the view which serves as the label of the view represented by this info for accessibility purposes.
void	setLabeledBy(View root, int virtualDescendantId) Sets the view which serves as the label of the view represented by this info for accessibility purposes.
void	setLiveRegion(int mode) Sets the node’s live region mode.
void	setLongClickable(boolean longClickable) Sets whether this node is long clickable.
void	setMaxTextLength(int max) Sets the maximum text length, or -1 for no limit.
void	setMovementGranularities(int granularities) Sets the movement granularities for traversing the text of this node.
void	setMultiLine(boolean multiLine) Sets if the node is a multi line editable text.
void	setPackageName(CharSequence packageName) Sets the package this node comes from.
void	setParent(View parent) Sets the parent.
void	setParent(View root, int virtualDescendantId) Sets the parent to be a virtual descendant of the given root.
void	setPassword(boolean password) Sets whether this node is a password.
void	setRangeInfo(AccessibilityNodeInfo.RangeInfo rangeInfo) Sets the range info if this node is a range.
void	setScrollable(boolean scrollable) Sets if the node is scrollable.
void	setSelected(boolean selected) Sets whether this node is selected.
void	setSource(View source) Sets the source.
void	setSource(View root, int virtualDescendantId) Sets the source to be a virtual descendant of the given root.
void	setText(CharSequence text) Sets the text of this node.
void	setTextSelection(int start, int end) Sets the text selection start and end.
void	setTraversalAfter(View view) Sets the view whose node is visited after this one in accessibility traversal.
void	setTraversalAfter(View root, int virtualDescendantId) Sets the node after which this one is visited in accessibility traversal.
void	setTraversalBefore(View view) Sets the view before whose node this one should be visited during traversal.
void	setTraversalBefore(View root, int virtualDescendantId) Sets the node before which this one is visited during traversal.
void	setViewIdResourceName(String viewIdResName) Sets the fully qualified resource name of the source view’s id.
void	setVisibleToUser(boolean visibleToUser) Sets whether this node is visible to the user.
String	toString() Returns a string containing a concise, human-readable description of this object.
void	writeToParcel(Parcel parcel, int flags) Flatten this object in to a Parcel. Note: After the instance is written to a parcel it is recycled.

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