Question

如何高亮显示用户在EditText中选择的特定单词。例如，我有一个EditText，其中用户输入句子“你好，你好吗？”，现在用户可以选择单词Like this Image。而且我必须在TextView上的整个句子中显示所选单词。

我已经提到了this和this，但没有理解。请帮帮我。

Answer 1

您可以使用replace（）方法，然后使用Html.fromHtml（），如下所示

yourEditText.setOnFocusChangedListener(new OnFocusChangedListener(){
    @Override
    public void onFocusChange(View v, boolean hasFocus){
        if (hasFocus){
             if (str.contains("Hello how are you ?") == true) 
                {                     
                    str =  ((EditText)v)getText.ToString().replaceAll("Hello how are you ?", "<font color='red'>Hello how are you ?</font>");

                     ((EditText)v).setText(Html.fromHtml(str), TextView.BufferType.SPANNABLE);
                }
        }
    }
});

[编辑1]

 yourEditText.setOnFocusChangedListener(new OnFocusChangedListener(){
        @Override
        public void onFocusChange(View v, boolean hasFocus){
            if (hasFocus){
            // But the words in an ArrayList then use them  
            for(String s : arrLst){
            if (str.contains(s) == true)                     {                     
             str =  ((EditText)v)getText.ToString().replaceAll(s, "<font     color='red'>Hello how are you ?</font>");
              ((EditText)v).setText(Html.fromHtml(str), TextView.BufferType.SPANNABLE);                                     }

            }
          }
        }
    });

[编辑2]

 yourEditText.setOnFocusChangedListener(new OnFocusChangedListener(){
        @Override
        public void onFocusChange(View v, boolean hasFocus){
            if (hasFocus){

                 int sSelection = ((EditText)v)getText.ToString().getSelectionStart(); 
                 int eSelection = ((EditText)v)getText.ToString().getSelectionEnd(); 
                 String sString = string.substring(sSelection, eSelection);

                 str =  ((EditText)v)getText.ToString().replaceAll(sString , "<font color='red'>"+sString +"</font>");
                 ((EditText)v).setText(Html.fromHtml(str), TextView.BufferType.SPANNABLE);

            }
        }
    });

Answer 2

试试这可能会帮助你。

"android:textColorHighlight="#00f000"

Answer 3

您可以使用spannable

实现这一目标

看看EditText有一个api可以获得选择：Selection in EditText

您可以使用TextView

在SpannableString中设置多色文字

所以在这样的代码中结合两者：

edit.setOnEditorActionListener(
     new EditText.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH ||
        actionId == EditorInfo.IME_ACTION_DONE ||
        event.getAction() == KeyEvent.ACTION_DOWN &&
        event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
    if (!event.isShiftPressed()) {
       // the user is done typing. 
//edit is the EditText
         Spannable spann = new SpannableString(edit.getText());        
      spann.setSpan(new ForegroundColorSpan(Color.BLUE), edit.getSelectionStart(),       edit.getSelectionEnd(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
     textView.setText(spann); // TextView 
       return true; // consume.
    }                
}
return false; // pass on to other listeners. 
}
 });

应该给你想要的效果

结束编辑检测代码来自此处：SO Answer

Answer 4

使用这样的html：

 Spanned s = Html.fromHtml(string.replace(selectedString, "<font color=\"red\">" + selectedString + "</font>"));

edittext.text(s);

在EditText android中使用Highlite特定单词

4 个答案: