| Methods Summary |
|---|
| public boolean | canSelectArbitrarily()
return false;
|
| protected boolean | down(android.widget.TextView widget, Spannable buffer)Scrolls the text down if possible.
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areabot = widget.getScrollY() + widget.getHeight() - padding;
int line = layout.getLineForVertical(areabot);
if (layout.getLineTop(line+1) < areabot + 1) {
// Less than a pixel of this line is out of view,
// so we must have tried to make it entirely in view
// and now want the next line to be in view instead.
line++;
}
if (line <= layout.getLineCount() - 1) {
widget.scrollTo(widget.getScrollX(), layout.getLineTop(line+1) -
(widget.getHeight() - padding));
Touch.scrollTo(widget, layout,
widget.getScrollX(), widget.getScrollY());
return true;
}
return false;
|
| private boolean | executeDown(android.widget.TextView widget, Spannable buffer, int keyCode)
boolean handled = false;
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_LEFT:
handled |= left(widget, buffer);
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
handled |= right(widget, buffer);
break;
case KeyEvent.KEYCODE_DPAD_UP:
handled |= up(widget, buffer);
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
handled |= down(widget, buffer);
break;
}
return handled;
|
| public static MovementMethod | getInstance()
if (sInstance == null)
sInstance = new ScrollingMovementMethod();
return sInstance;
|
| public void | initialize(android.widget.TextView widget, Spannable text)
|
| protected boolean | left(android.widget.TextView widget, Spannable buffer)Scrolls the text to the left if possible.
Layout layout = widget.getLayout();
int scrolly = widget.getScrollY();
int scr = widget.getScrollX();
int em = Math.round(layout.getPaint().getFontSpacing());
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int top = layout.getLineForVertical(scrolly);
int bottom = layout.getLineForVertical(scrolly + widget.getHeight() -
padding);
int left = Integer.MAX_VALUE;
for (int i = top; i <= bottom; i++) {
left = (int) Math.min(left, layout.getLineLeft(i));
}
if (scr > left) {
int s = Math.max(scr - em, left);
widget.scrollTo(s, widget.getScrollY());
return true;
}
return false;
|
| public boolean | onKeyDown(android.widget.TextView widget, Spannable buffer, int keyCode, android.view.KeyEvent event)
return executeDown(widget, buffer, keyCode);
|
| public boolean | onKeyOther(android.widget.TextView view, Spannable text, android.view.KeyEvent event)
int code = event.getKeyCode();
if (code != KeyEvent.KEYCODE_UNKNOWN
&& event.getAction() == KeyEvent.ACTION_MULTIPLE) {
int repeat = event.getRepeatCount();
boolean first = true;
boolean handled = false;
while ((--repeat) > 0) {
if (first && executeDown(view, text, code)) {
handled = true;
MetaKeyKeyListener.adjustMetaAfterKeypress(text);
MetaKeyKeyListener.resetLockedMeta(text);
}
first = false;
}
return handled;
}
return false;
|
| public boolean | onKeyUp(android.widget.TextView widget, Spannable buffer, int keyCode, android.view.KeyEvent event)
return false;
|
| public void | onTakeFocus(android.widget.TextView widget, Spannable text, int dir)
Layout layout = widget.getLayout();
if (layout != null && (dir & View.FOCUS_FORWARD) != 0) {
widget.scrollTo(widget.getScrollX(),
layout.getLineTop(0));
}
if (layout != null && (dir & View.FOCUS_BACKWARD) != 0) {
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int line = layout.getLineCount() - 1;
widget.scrollTo(widget.getScrollX(),
layout.getLineTop(line+1) -
(widget.getHeight() - padding));
}
|
| public boolean | onTouchEvent(android.widget.TextView widget, Spannable buffer, android.view.MotionEvent event)
return Touch.onTouchEvent(widget, buffer, event);
|
| public boolean | onTrackballEvent(android.widget.TextView widget, Spannable text, android.view.MotionEvent event)
return false;
|
| protected boolean | right(android.widget.TextView widget, Spannable buffer)Scrolls the text to the right if possible.
Layout layout = widget.getLayout();
int scrolly = widget.getScrollY();
int scr = widget.getScrollX();
int em = Math.round(layout.getPaint().getFontSpacing());
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int top = layout.getLineForVertical(scrolly);
int bottom = layout.getLineForVertical(scrolly + widget.getHeight() -
padding);
int right = 0;
for (int i = top; i <= bottom; i++) {
right = (int) Math.max(right, layout.getLineRight(i));
}
padding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight();
if (scr < right - (widget.getWidth() - padding)) {
int s = Math.min(scr + em, right - (widget.getWidth() - padding));
widget.scrollTo(s, widget.getScrollY());
return true;
}
return false;
|
| protected boolean | up(android.widget.TextView widget, Spannable buffer)Scrolls the text up if possible.
Layout layout = widget.getLayout();
int areatop = widget.getScrollY();
int line = layout.getLineForVertical(areatop);
int linetop = layout.getLineTop(line);
// If the top line is partially visible, bring it all the way
// into view; otherwise, bring the previous line into view.
if (areatop == linetop)
line--;
if (line >= 0) {
Touch.scrollTo(widget, layout,
widget.getScrollX(), layout.getLineTop(line));
return true;
}
return false;
|
