Draws the yoyo handle and string. The Yoyo handle can extend into the padding region. @param canvas @param activated True if the yoyo is activated. T

Returns printed width of c. @param c Character to measure @return Advance of character, in pixels

@return The x-value of the baseline for drawing text on the given row

Returns the maximum width available for a row of text to be layout. This should not be larger than the width of the text field. @return Maximum width

Invalidate all cache entries that have char offset >= fromCharOffset

Place _cache[newHead] at the top of the list

Note that up events from a fling are NOT captured here. Subclasses have to call super.onUp(MotionEvent) in their implementations of onFling(). Also,

Deletes existing selected text, then deletes charCount number of characters starting at from, and inserts text in its place. Unlike paste or selectio

Deletes selected text, exits select mode and invalidates deleted area. If the selected range is empty, this method exits select mode and invalidates t

Records the coordinates of the initial down event on the handle so that subsequent movement events will result in the handle being offset correctly.

Maps a coordinate to the character that it is on. Returns -1 if there is no character on the coordinate. The coordinates passed in should not have pa

Get the line number that charOffset is on @return The line number that charOffset is on, or -1 if charOffset is invalid

Get the row number that charOffset is on

Moves the caret to an edge of selected text and scrolls it to view. @param start If true, moves the caret to the beginning of the selection. Otherwis

The first row of text to paint, which may be partially visible. Deduced from the clipping rectangle given to onDraw()

Calculates the x-coordinate extent of charOffset. @return The x-values of left and right edges of charOffset. Pair.first contains the left edge and

@return The column number where charOffset appears on

Not private to allow access by TouchNavigationMethod @return The maximum x-value that can be scrolled to for the current rows of text in the viewport

Not private to allow access by TouchNavigationMethod @return The maximum y-value that can be scrolled to.

Derived classes that do not do represent C-like programming languages should return false; otherwise return true

空白符 @param c @return

Maps shortcut keys and Android keycodes to printable characters. Note that whitespace is considered printable. @param event The KeyEvent to interpret

Attempts to merge in an edit. This will only be successful if the new edit is continuous. See {@link UndoStack} for the requirements of a continuous e

@param isTyping Whether caret is moved to a consecutive position as a result of deleting text

@param isTyping Whether caret is moved to a consecutive position as a result of entering text

Populates _data with the affected text

Adjusts gap so that _gapStartIndex is at newGapStart

Adjusts gap so that _gapEndIndex is at newGapEnd

@param candidates A string of characters to for the user to choose from @param replace If true, the character before the caret will be replaced with

Stops automatic scrolling initiated by autoScrollCaret(int). Not private to allow access by TouchNavigationMethod

Returns the length of the matched text region.

Refills the input buffer. @return {@code false} iff there was new input.

Reports an error that occurred while scanning. <p>In a well-formed scanner (no or only correct usage of {@code yypushback(int)} and a match-all fallb