如何更改Android TextView的省略號字符串？（...更多）

Question

我想將省略號字符串從...更改爲自定義字符串，例如abc...[more]。 但在TextUtil，省略號字符串是固定的：

private static final String ELLIPSIS_STRING = new String(ELLIPSIS_NORMAL);

Answer 1

試試這個方法

public void CustomEllipsize(final TextView tv, final int maxLine, final String ellipsizetext) { 

    if (tv.getTag() == null) { 
     tv.setTag(tv.getText()); 
    } 
    ViewTreeObserver vto = tv.getViewTreeObserver(); 
    vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 

     @SuppressWarnings("deprecation") 
     @Override 
     public void onGlobalLayout() { 

      ViewTreeObserver obs = tv.getViewTreeObserver(); 
      obs.removeGlobalOnLayoutListener(this); 
      if ((maxLine+1) <= 0) { 
       int lineEndIndex = tv.getLayout().getLineEnd(0); 
       String text = tv.getText().subSequence(0, lineEndIndex - ellipsizetext.length()) + " " + ellipsizetext; 
       tv.setText(text); 
      } else if (tv.getLineCount() >= (maxLine+1)) { 
       int lineEndIndex = tv.getLayout().getLineEnd((maxLine+1) - 1); 
       String text = tv.getText().subSequence(0, lineEndIndex - ellipsizetext.length()) + " " + ellipsizetext; 
       tv.setText(text); 
      } 
     } 
    }); 

} 

，並使用此方法像這樣

final TextView txtView = (TextView) findViewById(R.id.txt); 
    String dummyText = "sdgsdafdsfsdfgdsfgdfgdfgsfgfdgfdgfdgfdgfdgdfgsfdgsfdgfdsdfsdfsdf"; 
    txtView.setText(dummyText); 
    CustomEllipsize(txtView, 2, "...[more]"); 

Answer 2

我找到了答案How to use custom ellipsis in Android TextView。但是你必須在佈局之後運行這個函數，你可以在OnGlobalLayoutListener.onGlobalLayout（）或view.post（）上運行它。