<p>Indicate whether this popup window is showing on screen.</p> @return true if the popup is showing, false otherwise

Disposes of the popup window. This method can be invoked only after {@link #showAsDropDown(android.view.View)} has been executed. Failing that, callin

Display the content view in a popup window anchored to the bottom-left corner of the anchor view. If there is not enough room on screen to show the po

Returns the popup's requested width. May be a layout constant such as {@link LayoutParams#WRAP_CONTENT} or {@link LayoutParams#MATCH_PARENT}. <p> The

<p>Change the popup's content. The content is represented by an instance of {@link android.view.View}.</p> <p>This method has no effect if called whe

Returns the popup's requested height. May be a layout constant such as {@link LayoutParams#WRAP_CONTENT} or {@link LayoutParams#MATCH_PARENT}. <p> The

Specifies the background drawable for this popup window. The background can be set to {@code null}. @param background the popup's background @see #ge

Updates the state of the popup window, if it is currently being displayed, from the currently set state. <p> This includes: <ul> <li>{@link #setCl

Positions the popup window on screen. When the popup window is too tall to fit under the anchor, a parent scroll view is seeked and scrolled up to rec

获取屏幕高度(px)

<p>Changes the focusability of the popup window. When focusable, the window will grab the focus from the current focused widget if the popup contains

Cancels all pending or current transitions.

<p>Generate the layout parameters for the popup window.</p> @param token the window token used to bind the popup's window @return the layout paramet

Removes the popup from the window manager and tears down the supporting view hierarchy, if necessary.

Returns the window-relative epicenter bounds to be used by enter and exit transitions. <p> <strong>Note:</strong> This is distinct from the rect passe

<p>Invoke the popup window by adding the content view to the window manager.</p> <p>The content view must be non-null when this method is invoked.</p

Indicates whether the popup is showing above (the y coordinate of the popup's bottom is less than the y coordinate of the anchor) or below the anchor

Prepare the popup by embedding it into a new ViewGroup if the background drawable is not null. If embedding is required, the layout parameters' height

Sets the popup's requested height. May be a layout constant such as {@link LayoutParams#WRAP_CONTENT} or {@link LayoutParams#MATCH_PARENT}. <p> The ac

<p>Controls whether the pop-up will be informed of touch events outside of its window. This only makes sense for pop-ups that are touchable but not f

Sets the popup's requested width. May be a layout constant such as {@link LayoutParams#WRAP_CONTENT} or {@link LayoutParams#MATCH_PARENT}. <p> The act

<p> Display the content view in a popup window at the specified location. If the popup window cannot fit on screen, it will be clipped. See {@link and

计算出来的位置，y方向就在anchorView的上面和下面对齐显示，x方向就是与屏幕右边对齐显示 如果anchorView的位置有变化，就可以适当自己额外加入偏移来修正 @param anchorView 呼出window的view @param contentView window的内容布局

Wraps a content view in a PopupViewContainer. @param contentView the content view to wrap @return a PopupViewContainer that wraps the content view

Wraps a content view in a FrameLayout. @param contentView the content view to wrap @return a FrameLayout that wraps the content view

获取屏幕宽度(px)

<p>Indicates whether the popup window supports splitting touches.</p> @return true if the touch splitting is enabled, false otherwise @see #setSplit

Called when this popup window is dismissed.

Requests that an enter transition run after the next layout pass.

<p>This will attach the popup window to the decor frame of the parent window to avoid overlaping with screen decorations like the navigation bar. Over

Specifies the elevation for this popup window. @param elevation the popup's elevation in pixels @see #getElevation() @attr ref android.R.styleable#Po

Sets the enter transition to be used when the popup window is shown. @param enterTransition the enter transition, or {@code null} to clear @see #getE

Sets the exit transition to be used when the popup window is dismissed. @param exitTransition the exit transition, or {@code null} to clear @see #get

Set a callback for all touch events being dispatched to the popup window.

<p>Changes the touchability of the popup window. When touchable, the window will receive touch events, otherwise touch events will go to the window be

Starts the pending enter transition, if one is set.

Starts an exit transition immediately. <p> <strong>Note:</strong> The transition listener is guaranteed to have its {@code onTransitionEnd} method cal

<p>Create a new empty, non focusable popup window of dimension (0,0).</p> <p>The popup does provide a background.</p>

<p>Return the animation style to use the popup appears and disappears</p> @return the animation style to use the popup appears and disappears

Return the drawable used as the popup window's background. @return the background drawable or {@code null} if not set @see #setBackgroundDrawable(Dra

<p>Return the view used as the content of the popup window.</p> @return a {@link android.view.View} representing the popup's content @see #setConten

@return the elevation for this popup window in pixels @see #setElevation(float) @attr ref android.R.styleable#PopupWindow_popupElevation

Returns the enter transition to be used when the popup window is shown. @return the enter transition, or {@code null} if not set @see #setEnterTransi

Returns the exit transition to be used when the popup window is dismissed. @return the exit transition, or {@code null} if not set @see #setExitTrans

Return the current value in {@link #setInputMethodMode(int)}. @see #setInputMethodMode(int)

Returns the maximum height that is available for the popup to be completely shown. It is recommended that this height be the maximum for the popup's h

Returns whether the popup window should overlap its anchor view when displayed as a drop-down. @return Whether the popup should overlap its anchor.

Returns the current value in {@link #setSoftInputMode(int)}. @see #setSoftInputMode(int) @see android.view.WindowManager.LayoutParams#softInputMode

Returns the layout type for this window. @see #setWindowLayoutType(int)

<p>Indicates whether the popup window will be attached in the decor frame of its parent window. @return true if the window will be attached to the de

<p>Indicates whether clipping of the popup window is enabled.</p> @return true if the clipping is enabled, false otherwise @see #setClippingEnabled(

<p>Indicate whether the popup window can grab the focus.</p> @return true if the popup is focusable, false otherwise @see #setFocusable(boolean)

<p>Indicates whether the popup window will be forced into using absolute screen coordinates for positioning.</p> @return true if the window will alwa

<p>Indicates whether the popup window will be informed of touch events outside of its window.</p> @return true if the popup is outside touchable, fal