如何将选定的文字设置为粗体？

我想以粗体EditText设置选定的文本。如何将选定的文字设置为粗体？

已经有可能找出我选择的字符并用getSelectionStart() and getSelectionEnd()我知道位置在哪里。

但我的问题是，我想用按钮设置选定的文本粗体，不知道如何设置字符粗体与字符串（我只知道如何设置它与EditText）。

因此，这里是我的示例代码：

fettdruckButton.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      int selectionStart = fullscreenEdittext.getSelectionStart(); 
      int selectionEnd = fullscreenEdittext.getSelectionEnd(); 

      int differenz = selectionEnd - selectionStart; 

      String selectedText = fullscreenEdittext.getText().toString().substring(selectionStart, selectionEnd); 
      Log.d("selectedText", "selectedText " + selectedText + "|" + selectionStart + "|" + selectionEnd); 


      //fullscreenEdittext.setTypeface(null, Typeface.BOLD); 

     } 
    });

来源

2014-09-01 user3603935

ü想要它在点击按钮后或选择文本时点击 – 2014-09-01 08:36:55

按钮之后点击所选文本应显示为粗体 – user3603935 2014-09-01 08:38:32

使用的EditextfullscreenEdittext.setText(Html.fromHtml(styledText)); 使用HTML格式的标签<b>selectedText</b>的属性，以使选定的文本加粗。请各位看看下面的代码片断

int selectionStart = fullscreenEdittext.getSelectionStart(); 
    int selectionEnd = fullscreenEdittext.getSelectionEnd(); 

    String startingText = fullscreenEdittext.getText().toString() 
      .substring(0, selectionStart); 
    String selectedText = fullscreenEdittext.getText().toString() 
      .substring(selectionStart, selectionEnd); 
    String endingText = fullscreenEdittext.getText().toString() 
      .substring(selectionEnd); 

    fullscreenEdittext.setText(Html.fromHtml(startingText + "<b>" 
      + selectedText + "</b>" + endingText));

来源

2014-09-01 08:47:51 Mahesh

String completetext=fullscreenEdittext.getText().toString(); 
int selectionStart = fullscreenEdittext.getSelectionStart(); 
int selectionEnd = fullscreenEdittext.getSelectionEnd(); 
int differenz = selectionEnd - selectionStart; 
String selectedText = fullscreenEdittext.getText().toString().substring(selectionStart, selectionEnd); 
Log.d("selectedText", "selectedText " + selectedText + "|" + selectionStart + "|" + selectionEnd); 

String part1=fullscreenEdittext.getText().toString().substring(0, selectionStart); 

String part2=fullscreenEdittext.getText().toString().substring(selectionStart, selectionEnd); 

String part3=fullscreenEdittext.getText().toString().substring(selectionEnd,completetext.length()); 

fullscreenEdittext.setText(Html.fromHtml(part1+"<b>" + part2+ "</b>" +part3));

来源

2014-09-01 08:51:40

使用SpannableStringBuilder。

SpannableStringBuilder stringBuilder = (SpannableStringBuilder) fullscreeneditText.getText(); 
stringBuilder.setSpan(new StyleSpan(Typeface.BOLD), selectionStart, selectionEnd, 0);

请注意，如果您想多次执行此操作，应先删除原始范围。

来源

2014-09-01 09:02:17 Okas

如何将选定的文字设置为粗体？

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