我终于设法它以这种方式(可能不是最好的一个):
private void setLabelAfterEllipsis(TextView textView, int labelId, int maxLines){
if(textView.getLayout().getEllipsisCount(maxLines-1)==0) {
return; // Nothing to do
}
int start = textView.getLayout().getLineStart(0);
int end = textView.getLayout().getLineEnd(textView.getLineCount() - 1);
String displayed = textView.getText().toString().substring(start, end);
int displayedWidth = getTextWidth(displayed, textView.getTextSize());
String strLabel = textView.getContext().getResources().getString(labelId);
String ellipsis = "...";
String suffix = ellipsis + strLabel;
int textWidth;
String newText = displayed;
textWidth = getTextWidth(newText + suffix, textView.getTextSize());
while(textWidth>displayedWidth){
newText = newText.substring(0, newText.length()-1).trim();
textWidth = getTextWidth(newText + suffix, textView.getTextSize());
}
textView.setText(newText + suffix);
}
private int getTextWidth(String text, float textSize){
Rect bounds = new Rect();
Paint paint = new Paint();
paint.setTextSize(textSize);
paint.getTextBounds(text, 0, text.length(), bounds);
int width = (int) Math.ceil(bounds.width());
return width;
}
参考'l.getEllipsisStart()' – 2014-09-26 08:12:34