如何在edittext中的每个字符下划线? [英] how can i underline each character in edittext?

问题描述

我正在尝试在android中编写像hangman这样的猜词游戏. 假设这个词是否为苹果".我想显示5个下划线，以告诉玩家该单词的长度为5个字符，因此应该像下面这样显示/填充

I'm trying to write a word guessing game like hangman in android. let's say if the word is 'apple'. I want to display 5 underlines to tell the player that the word is 5 chars long, and they should be displayed/filled like below

我想不出一种简单的方法.我发现此与我所寻找的完全相同，但是没有给出答案，并且以某种方式获得了很多反对意见.

i cant think of a way to do so easily. i found this to be exact the same what Im looking for but there's no answer given and somehow got a lot of downvotes.

我最初的想法是创建带有下划线的edittext作为提示，并在所有字符之间循环.这将基于多少个字符创建#edittext，但是一旦填充了char，下划线就会消失，并且当char被删除/填充时，我需要创建指向上一个/下一个edittext的链接.

my initial thought is creating edittext with underline to be the hint and loop through all the characters. this will create # of edittext based on how many characters, but underline will be gone once a char is filled, and i need to create links to the previous/next edittext when the char is deleted/filled.

关于如何实现此目标的任何想法?还是有一个库可以使用?非常感谢！！

any idea on how to accomplish this? or is there a lib to use? Thank you so much!!

推荐答案

我认为您不需要使用edittext来实现它.您可以添加一个水平线性布局，该布局在布局内部不包含任何视图.

i think you dont need to use edittext for achieve it. You can add a horizontal linearlayout which is do not contain any view inside in your layout.

然后您可以创建一个布局，该布局将作为视图填充在水平linearlayout中. (该名称可以是row_word)此布局将在每个edittext下方包括下划线.您可以使用linearlayout实现它.

And than you can create a layout which will be populate in the horizontal linearlayout as a view. (thats name can be row_word) This layout will be include the underline below every edittext. You can use linearlayout for achive it.

在您的片段中，您可以编写一个填充方法，如下所示:

In your fragment you can write a populate method which likes below:

public class Character
{
    public String char;

    public boolean isFilled;

}

 ArrayList<Character> words = new ArrayList();
 words.addAll(_yourWords);

 linearlayout.removeAllViews();
 for(int i = 0 ; i < words.size(); i++)
    {
        LayoutInflater inflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View v = inflater.inflate(R.layout.row_word, horizontalLinearLayout, false);

        EditText editText = v.findViewById(R.id.textView);
        //you must declare focusable and focusableintouchmode values false in 
        //the your row_word
        if(!word.isFilled)
        {
          edittext.setFocusable(true);
          edittext.setFocusableontouhcmode(true);
          editText.requestFocus();
        }
         else{
          edittext.setFocusable(false);
          edittext.setFocusableontouhcmode(false);
          edittext.clearfocus();
         } 



      edittex.setOnFocusChangeListener(new OnFocusChangeListener() {
      public void onFocusChange(View v, boolean hasFocus) {
      populate();
      } 

        .
        .
        .
        .
        .
        .

        horizontalLinearLayout.addView(v);

    }

如果要在row_word中使用textview，请在活动中重写以下方法以从键盘获取按下的键值(当然使用界面).否则，您不需要使用以下代码.

if you want to use textview in your row_word then override the below method in your activity for get the pressed key value from the keyboard(With using interface of course). Otherwise you dont need to use below codes.

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    Log.i("key pressed", String.valueOf(event.getKeyCode()));
    return super.dispatchKeyEvent(event);
    callBack.setValue(String.valueOf(event.getKeyCode())

}

您的界面就像:

public interface pressedKeyCallback {

void onKeyPressed(String pressedKey);}

用于显示键盘:

InputMethodManager imm = (InputMethodManager)
                                 getSystemService(Context.INPUT_METHOD_SERVICE);
if(imm != null){
        imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
    }

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