下面列出了android.widget.TextView#getTotalPaddingBottom ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public void onTakeFocus(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 TinyCoach(Application context, FPSConfig config) {
fpsConfig = config;
//create meter view
meterView = (TextView) LayoutInflater.from(context).inflate(R.layout.meter_view, null);
//set initial fps value....might change...
meterView.setText((int) fpsConfig.refreshRate + "");
// grab window manager and add view to the window
windowManager = (WindowManager) meterView.getContext().getSystemService(Service.WINDOW_SERVICE);
int minWidth = meterView.getLineHeight()
+ meterView.getTotalPaddingTop()
+ meterView.getTotalPaddingBottom()
+ (int) meterView.getPaint().getFontMetrics().bottom;
meterView.setMinWidth(minWidth);
addViewToWindow(meterView);
}
/**
* Scrolls the specified widget to the specified coordinates, except
* constrains the X scrolling position to the horizontal regions of
* the text that will be visible after scrolling to the specified
* Y position.
*/
public static void scrollTo(TextView widget, Layout layout, int x, int y) {
final int horizontalPadding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight();
final int availableWidth = widget.getWidth() - horizontalPadding;
final int top = layout.getLineForVertical(y);
Alignment a = layout.getParagraphAlignment(top);
boolean ltr = layout.getParagraphDirection(top) > 0;
int left, right;
if (widget.getHorizontallyScrolling()) {
final int verticalPadding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
final int bottom = layout.getLineForVertical(y + widget.getHeight() - verticalPadding);
left = Integer.MAX_VALUE;
right = 0;
for (int i = top; i <= bottom; i++) {
left = (int) Math.min(left, layout.getLineLeft(i));
right = (int) Math.max(right, layout.getLineRight(i));
}
} else {
left = 0;
right = availableWidth;
}
final int actualWidth = right - left;
if (actualWidth < availableWidth) {
if (a == Alignment.ALIGN_CENTER) {
x = left - ((availableWidth - actualWidth) / 2);
} else if ((ltr && (a == Alignment.ALIGN_OPPOSITE)) ||
(!ltr && (a == Alignment.ALIGN_NORMAL)) ||
(a == Alignment.ALIGN_RIGHT)) {
// align_opposite does NOT mean align_right, we need the paragraph
// direction to resolve it to left or right
x = left - (availableWidth - actualWidth);
} else {
x = left;
}
} else {
x = Math.min(x, right - availableWidth);
x = Math.max(x, left);
}
widget.scrollTo(x, y);
}
/**
* Handles touch events for dragging. You may want to do other actions
* like moving the cursor on touch as well.
*/
public static boolean onTouchEvent(TextView widget, Spannable buffer,
MotionEvent event) {
DragState[] ds;
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
ds = buffer.getSpans(0, buffer.length(), DragState.class);
for (int i = 0; i < ds.length; i++) {
buffer.removeSpan(ds[i]);
}
buffer.setSpan(new DragState(event.getX(), event.getY(),
widget.getScrollX(), widget.getScrollY()),
0, 0, Spannable.SPAN_MARK_MARK);
return true;
case MotionEvent.ACTION_UP:
ds = buffer.getSpans(0, buffer.length(), DragState.class);
for (int i = 0; i < ds.length; i++) {
buffer.removeSpan(ds[i]);
}
if (ds.length > 0 && ds[0].mUsed) {
return true;
} else {
return false;
}
case MotionEvent.ACTION_MOVE:
ds = buffer.getSpans(0, buffer.length(), DragState.class);
if (ds.length > 0) {
if (ds[0].mFarEnough == false) {
int slop = ViewConfiguration.get(widget.getContext()).getScaledTouchSlop();
if (Math.abs(event.getX() - ds[0].mX) >= slop ||
Math.abs(event.getY() - ds[0].mY) >= slop) {
ds[0].mFarEnough = true;
}
}
if (ds[0].mFarEnough) {
ds[0].mUsed = true;
boolean cap = (event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0
|| MetaKeyKeyListener.getMetaState(buffer,
MetaKeyKeyListener.META_SHIFT_ON) == 1
|| MetaKeyKeyListener.getMetaState(buffer,
MetaKeyKeyListener.META_SELECTING) != 0;
float dx;
float dy;
if (cap) {
// if we're selecting, we want the scroll to go in
// the direction of the drag
dx = event.getX() - ds[0].mX;
dy = event.getY() - ds[0].mY;
} else {
dx = ds[0].mX - event.getX();
dy = ds[0].mY - event.getY();
}
ds[0].mX = event.getX();
ds[0].mY = event.getY();
int nx = widget.getScrollX() + (int) dx;
int ny = widget.getScrollY() + (int) dy;
int padding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
Layout layout = widget.getLayout();
ny = Math.min(ny, layout.getHeight() - (widget.getHeight() - padding));
ny = Math.max(ny, 0);
int oldX = widget.getScrollX();
int oldY = widget.getScrollY();
scrollTo(widget, layout, nx, ny);
// If we actually scrolled, then cancel the up action.
if (oldX != widget.getScrollX() || oldY != widget.getScrollY()) {
widget.cancelLongPress();
}
return true;
}
}
}
return false;
}
private int getInnerHeight(TextView widget) {
return widget.getHeight() - widget.getTotalPaddingTop() - widget.getTotalPaddingBottom();
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last)
selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first)
selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1)
return false;
link[0].onClick(widget);
break;
case UP:
int beststart, bestend;
beststart = -1;
bestend = -1;
for (int i = 0; i < candidates.length; i++) {
int end = buffer.getSpanEnd(candidates[i]);
if (end < selEnd || selStart == selEnd) {
if (end > bestend) {
beststart = buffer.getSpanStart(candidates[i]);
bestend = end;
}
}
}
if (beststart >= 0) {
Selection.setSelection(buffer, bestend, beststart);
return true;
}
break;
case DOWN:
beststart = Integer.MAX_VALUE;
bestend = Integer.MAX_VALUE;
for (int i = 0; i < candidates.length; i++) {
int start = buffer.getSpanStart(candidates[i]);
if (start > selStart || selStart == selEnd) {
if (start < beststart) {
beststart = start;
bestend = buffer.getSpanEnd(candidates[i]);
}
}
}
if (bestend < Integer.MAX_VALUE) {
Selection.setSelection(buffer, beststart, bestend);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last) selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first) selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1) return false;
link[0].onClick(widget);
break;
case UP:
int beststart, bestend;
beststart = -1;
bestend = -1;
for (int i = 0; i < candidates.length; i++) {
int end = buffer.getSpanEnd(candidates[i]);
if (end < selEnd || selStart == selEnd) {
if (end > bestend) {
beststart = buffer.getSpanStart(candidates[i]);
bestend = end;
}
}
}
if (beststart >= 0) {
Selection.setSelection(buffer, bestend, beststart);
return true;
}
break;
case DOWN:
beststart = Integer.MAX_VALUE;
bestend = Integer.MAX_VALUE;
for (int i = 0; i < candidates.length; i++) {
int start = buffer.getSpanStart(candidates[i]);
if (start > selStart || selStart == selEnd) {
if (start < beststart) {
beststart = start;
bestend = buffer.getSpanEnd(candidates[i]);
}
}
}
if (bestend < Integer.MAX_VALUE) {
Selection.setSelection(buffer, beststart, bestend);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areaTop = widget.getScrollY();
int areaBot = areaTop + widget.getHeight() - padding;
int lineTop = layout.getLineForVertical(areaTop);
int lineBot = layout.getLineForVertical(areaBot);
int first = layout.getLineStart(lineTop);
int last = layout.getLineEnd(lineBot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last)
selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first)
selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1)
return false;
link[0].onClick(widget);
break;
case UP:
int bestStart, bestEnd;
bestStart = -1;
bestEnd = -1;
for (int i = 0; i < candidates.length; i++) {
int end = buffer.getSpanEnd(candidates[i]);
if (end < selEnd || selStart == selEnd) {
if (end > bestEnd) {
bestStart = buffer.getSpanStart(candidates[i]);
bestEnd = end;
}
}
}
if (bestStart >= 0) {
Selection.setSelection(buffer, bestEnd, bestStart);
return true;
}
break;
case DOWN:
bestStart = Integer.MAX_VALUE;
bestEnd = Integer.MAX_VALUE;
for (int i = 0; i < candidates.length; i++) {
int start = buffer.getSpanStart(candidates[i]);
if (start > selStart || selStart == selEnd) {
if (start < bestStart) {
bestStart = start;
bestEnd = buffer.getSpanEnd(candidates[i]);
}
}
}
if (bestEnd < Integer.MAX_VALUE) {
Selection.setSelection(buffer, bestStart, bestEnd);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last)
selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first)
selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1)
return false;
link[0].onClick(widget);
break;
case UP:
int beststart, bestend;
beststart = -1;
bestend = -1;
for (ClickableSpan candidate1 : candidates) {
int end = buffer.getSpanEnd(candidate1);
if (end < selEnd || selStart == selEnd) {
if (end > bestend) {
beststart = buffer.getSpanStart(candidate1);
bestend = end;
}
}
}
if (beststart >= 0) {
Selection.setSelection(buffer, bestend, beststart);
return true;
}
break;
case DOWN:
beststart = Integer.MAX_VALUE;
bestend = Integer.MAX_VALUE;
for (ClickableSpan candidate : candidates) {
int start = buffer.getSpanStart(candidate);
if (start > selStart || selStart == selEnd) {
if (start < beststart) {
beststart = start;
bestend = buffer.getSpanEnd(candidate);
}
}
}
if (bestend < Integer.MAX_VALUE) {
Selection.setSelection(buffer, beststart, bestend);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last)
selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first)
selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1)
return false;
link[0].onClick(widget);
break;
case UP:
int beststart, bestend;
beststart = -1;
bestend = -1;
for (int i = 0; i < candidates.length; i++) {
int end = buffer.getSpanEnd(candidates[i]);
if (end < selEnd || selStart == selEnd) {
if (end > bestend) {
beststart = buffer.getSpanStart(candidates[i]);
bestend = end;
}
}
}
if (beststart >= 0) {
Selection.setSelection(buffer, bestend, beststart);
return true;
}
break;
case DOWN:
beststart = Integer.MAX_VALUE;
bestend = Integer.MAX_VALUE;
for (int i = 0; i < candidates.length; i++) {
int start = buffer.getSpanStart(candidates[i]);
if (start > selStart || selStart == selEnd) {
if (start < beststart) {
beststart = start;
bestend = buffer.getSpanEnd(candidates[i]);
}
}
}
if (bestend < Integer.MAX_VALUE) {
Selection.setSelection(buffer, beststart, bestend);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
MyURLSpan[] candidates = buffer.getSpans(first, last, MyURLSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last) {
selStart = selEnd = Integer.MAX_VALUE;
}
if (selEnd < first) {
selStart = selEnd = -1;
}
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
MyURLSpan[] link = buffer.getSpans(selStart, selEnd, MyURLSpan.class);
if (link.length != 1) {
return false;
}
link[0].onClick(widget);
break;
case UP:
int best_start = -1;
int best_end = -1;
for (MyURLSpan candidate1 : candidates) {
int end = buffer.getSpanEnd(candidate1);
if (end < selEnd || selStart == selEnd) {
if (end > best_end) {
best_start = buffer.getSpanStart(candidate1);
best_end = end;
}
}
}
if (best_start >= 0) {
Selection.setSelection(buffer, best_end, best_start);
return true;
}
break;
case DOWN:
best_start = Integer.MAX_VALUE;
best_end = Integer.MAX_VALUE;
for (MyURLSpan candidate : candidates) {
int start = buffer.getSpanStart(candidate);
if (start > selStart || selStart == selEnd) {
if (start < best_start) {
best_start = start;
best_end = buffer.getSpanEnd(candidate);
}
}
}
if (best_end < Integer.MAX_VALUE) {
Selection.setSelection(buffer, best_start, best_end);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() +
widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
ClickableSpan[] candidates = buffer.getSpans(first, last, ClickableSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last)
selStart = selEnd = Integer.MAX_VALUE;
if (selEnd < first)
selStart = selEnd = -1;
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
ClickableSpan[] link = buffer.getSpans(selStart, selEnd, ClickableSpan.class);
if (link.length != 1)
return false;
link[0].onClick(widget);
break;
case UP:
int beststart, bestend;
beststart = -1;
bestend = -1;
for (int i = 0; i < candidates.length; i++) {
int end = buffer.getSpanEnd(candidates[i]);
if (end < selEnd || selStart == selEnd) {
if (end > bestend) {
beststart = buffer.getSpanStart(candidates[i]);
bestend = end;
}
}
}
if (beststart >= 0) {
Selection.setSelection(buffer, bestend, beststart);
return true;
}
break;
case DOWN:
beststart = Integer.MAX_VALUE;
bestend = Integer.MAX_VALUE;
for (int i = 0; i < candidates.length; i++) {
int start = buffer.getSpanStart(candidates[i]);
if (start > selStart || selStart == selEnd) {
if (start < beststart) {
beststart = start;
bestend = buffer.getSpanEnd(candidates[i]);
}
}
}
if (bestend < Integer.MAX_VALUE) {
Selection.setSelection(buffer, beststart, bestend);
return true;
}
break;
}
return false;
}
private boolean action(int what, TextView widget, Spannable buffer) {
Layout layout = widget.getLayout();
int padding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
int areatop = widget.getScrollY();
int areabot = areatop + widget.getHeight() - padding;
int linetop = layout.getLineForVertical(areatop);
int linebot = layout.getLineForVertical(areabot);
int first = layout.getLineStart(linetop);
int last = layout.getLineEnd(linebot);
MyURLSpan[] candidates = buffer.getSpans(first, last, MyURLSpan.class);
int a = Selection.getSelectionStart(buffer);
int b = Selection.getSelectionEnd(buffer);
int selStart = Math.min(a, b);
int selEnd = Math.max(a, b);
if (selStart < 0) {
if (buffer.getSpanStart(FROM_BELOW) >= 0) {
selStart = selEnd = buffer.length();
}
}
if (selStart > last) {
selStart = selEnd = Integer.MAX_VALUE;
}
if (selEnd < first) {
selStart = selEnd = -1;
}
switch (what) {
case CLICK:
if (selStart == selEnd) {
return false;
}
MyURLSpan[] link = buffer.getSpans(selStart, selEnd, MyURLSpan.class);
if (link.length != 1) {
return false;
}
link[0].onClick(widget);
break;
case UP:
int best_start = -1;
int best_end = -1;
for (MyURLSpan candidate1 : candidates) {
int end = buffer.getSpanEnd(candidate1);
if (end < selEnd || selStart == selEnd) {
if (end > best_end) {
best_start = buffer.getSpanStart(candidate1);
best_end = end;
}
}
}
if (best_start >= 0) {
Selection.setSelection(buffer, best_end, best_start);
return true;
}
break;
case DOWN:
best_start = Integer.MAX_VALUE;
best_end = Integer.MAX_VALUE;
for (MyURLSpan candidate : candidates) {
int start = buffer.getSpanStart(candidate);
if (start > selStart || selStart == selEnd) {
if (start < best_start) {
best_start = start;
best_end = buffer.getSpanEnd(candidate);
}
}
}
if (best_end < Integer.MAX_VALUE) {
Selection.setSelection(buffer, best_start, best_end);
return true;
}
break;
}
return false;
}