我怎样才能拥有带有可点击 Spannables 的 EditText 并且仍然可以通过 longClick 选择？

Posted 2023-02-19

【中文标题】我怎样才能拥有带有可点击 Spannables 的 EditText 并且仍然可以通过 longClick 选择？

【英文标题】：How can i have EditText with Clickable Spannables and still selectable by longClick?

【发布时间】：2014-06-15 07:42:56

【问题描述】：

我有 TextView，其跨度类型为 ClickableStringSpan，定义如下：

public class ClickableStringSpan extends ClickableSpan 
    private View.OnClickListener mListener;
    int color;
    public ClickableStringSpan(View.OnClickListener listener,int color) 
        mListener = listener;
        this.color = color;

    

    @Override
    public void onClick(View v) 
        mListener.onClick(v);
    

       @Override public void updateDrawState(TextPaint ds) 
           super.updateDrawState(ds);
           ds.setUnderlineText(false);
           ds.setColor(color);
       

我像这样在我的文本上设置可点击范围：

spanStr.setSpan(new ClickableString(new linkedTextClickListener(), linkColor),
                        startIndex, endIndex,
                        SpannableString.SPAN_INCLUSIVE_EXCLUSIVE);

现在我想将这些字符串应用到 EditTexts 而不是 TextViews。一切都很好，只是现在不再单击可单击的字符串。我想知道如何将这种跨度上的点击传递给他们分配的点击侦听器？

更新：我编辑文本的主要问题是我想让用户选择文本的一部分并分享它，同时他/她可以点击 ClickableSpans。

【问题讨论】：

你打算奖励赏金还是让它过期？

@EmanuelMoecklin 你能再次发布你的答案吗？我有一段时间没上网了:)

【参考方案1】：

您需要将TextView/EditText的移动方法设置为LinkMovementMethod才能获得点击链接。不幸的是，这会禁用选择文本的功能，该功能仅在您将移动方法设置为 ArrowKeyMovementMethod 时才有效。 http://developer.android.com/reference/android/text/method/LinkMovementMethod.html http://developer.android.com/reference/android/text/method/ArrowKeyMovementMethod.html

为了解决这个问题，我创建了一个自定义的 MovementMethod 类，它继承自 ArrowKeyMovementMethod 并添加了点击链接的功能。 ：

/**
 * ArrowKeyMovementMethod does support selection of text but not the clicking of links.
 * LinkMovementMethod does support clicking of links but not the selection of text.
 * This class adds the link clicking to the ArrowKeyMovementMethod.
 * We basically take the LinkMovementMethod onTouchEvent code and remove the line
 *      Selection.removeSelection(buffer);
 * which deselects all text when no link was found.
 */
public class EnhancedMovementMethod extends ArrowKeyMovementMethod 

    private static EnhancedMovementMethod sInstance;

    public static MovementMethod getInstance() 
        if (sInstance == null) 
            sInstance = new EnhancedMovementMethod ();
        
        return sInstance;
    

    @Override
    public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) 
        int action = event.getAction();

        if (action == MotionEvent.ACTION_UP ||
            action == MotionEvent.ACTION_DOWN) 
            int x = (int) event.getX();
            int y = (int) event.getY();

            x -= widget.getTotalPaddingLeft();
            y -= widget.getTotalPaddingTop();

            x += widget.getScrollX();
            y += widget.getScrollY();

            Layout layout = widget.getLayout();
            int line = layout.getLineForVertical(y);
            int off = layout.getOffsetForHorizontal(line, x);

            ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);

            if (link.length != 0) 
                if (action == MotionEvent.ACTION_UP) 
                    link[0].onClick(widget);
                
                else if (action == MotionEvent.ACTION_DOWN) 
                    Selection.setSelection(buffer, buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]));
                

                return true;
            
            /*else 
                Selection.removeSelection(buffer);
            */
        

        return super.onTouchEvent(widget, buffer, event);
    

您只需设置 EditText 的移动方法即可：

yourEditTExt.setMovementMethod(EnhancedMovementMethod.getInstance());

上面的代码只适用于未格式化的文本，这意味着一旦您决定使用文本样式（粗体、斜体等）或不同的字体大小来格式化文本，它就不会再找到点击的链接。我确实有处理格式化文本的代码，但由于这不是问题的一部分，所以我使示例代码尽可能短。

【讨论】：

我会检查并告诉你结果，问候;)

我试过了，但我遇到了一些问题。请你帮帮我好吗？我的问题在这里描述：***.com/questions/23769532/…

@user3132352：在此处查看我的评论

【参考方案2】：

下面的代码示例应该适合你，我也测试过它给你ClickableSpanString的点击事件

可能你忘了加setMovementMethod

    EditText spanEditText = (EditText)rootView.findViewById(R.id.edtEmailId);

    // this is the text we'll be operating on  
    SpannableStringBuilder text = new SpannableStringBuilder("World Super Power God LOVE");  

    // make "World" (characters 0 to 5) red  
    text.setSpan(new ForegroundColorSpan(Color.RED), 0, 5, 0); 

    // make "Super" (characters 6 to 11) one and a half time bigger than the textbox  
    text.setSpan(new RelativeSizeSpan(1.5f), 6, 11, 0);  

    // make "Power" (characters 12 to 17) display a toast message when touched  
    final Context context = getActivity().getApplicationContext();  
    ClickableSpan clickableSpan = new ClickableSpan()   
        @Override  
        public void onClick(View view)   
            Toast.makeText(context, "Power", Toast.LENGTH_LONG).show();  
          
    ;  
    text.setSpan(clickableSpan, 12, 17, 0);  

    // make "God" (characters 18 to 21) struck through  
    text.setSpan(new StrikethroughSpan(), 18, 21, 0);  

    // make "LOVE" (characters 22 to 26) twice as big, green and a link to this site.  
    // it's important to set the color after the URLSpan or the standard  
    // link color will override it.  
    text.setSpan(new RelativeSizeSpan(2f), 22, 26, 0);  
    text.setSpan(new ForegroundColorSpan(Color.GREEN), 22, 26, 0);  

    // make our ClickableSpans and URLSpans work  
    spanEditText.setMovementMethod(LinkMovementMethod.getInstance());  

    // shove our styled text into the TextView          
    spanEditText.setText(text, BufferType.EDITABLE);

【讨论】：

我对 EditText 的主要兴趣是因为我想通过长按来选择它的文本。然而，这种方式文本不再可选择:(

【参考方案3】：

//try this way,hope this will help you...

**activity.xml** code
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_
    android:layout_
    android:orientation="vertical"
    android:gravity="center">

   <EditText
       android:id="@+id/edtText1"
       android:layout_
       android:layout_
       android:focusableInTouchMode="false"
       android:focusable="false"
       android:editable="false"/>

    <EditText
        android:id="@+id/edtText2"
        android:layout_
        android:layout_
        android:focusableInTouchMode="false"
        android:focusable="false"
        android:editable="false"/>

    <EditText
        android:id="@+id/edtText3"
        android:layout_
        android:layout_
        android:focusableInTouchMode="false"
        android:focusable="false"
        android:editable="false"/>
</LinearLayout>

**Activity** code
    private EditText edtText1;
    private EditText edtText2;
    private EditText edtText3;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity);
        edtText1 = (EditText) findViewById(R.id.edtText1);
        edtText2 = (EditText) findViewById(R.id.edtText2);
        edtText3 = (EditText) findViewById(R.id.edtText3);

        String string1 = "Demo EditText First";
        edtText1.setText(setSpanColor(string1, "First",R.color.orange,new SpannableClickListener()
            @Override
            public void onClickListener(View view) 
                view.performClick();
            
        ));

        edtText1.setOnClickListener(new View.OnClickListener() 
            @Override
            public void onClick(View v) 
                Toast.makeText(MyActivity.this,"EditText First Click",Toast.LENGTH_SHORT).show();
            
        );


        String string2 = "Demo EditText Second";
        edtText2.setText(setSpanColor(string2, "Second",R.color.orange,new SpannableClickListener()
            @Override
            public void onClickListener(View view) 
                view.performClick();
            
        ));

        edtText2.setOnClickListener(new View.OnClickListener() 
            @Override
            public void onClick(View v) 
                Toast.makeText(MyActivity.this,"EditText Second Click",Toast.LENGTH_SHORT).show();
            
        );


        String string3 = "Demo EditText Third";
        edtText3.setText(setSpanColor(string3, "Third",R.color.orange,new SpannableClickListener()
            @Override
            public void onClickListener(View view) 
                view.performClick();
            
        ));

        edtText3.setOnClickListener(new View.OnClickListener() 
            @Override
            public void onClick(View v) 
                Toast.makeText(MyActivity.this,"EditText Third Click",Toast.LENGTH_SHORT).show();
            
        );

    
    private SpannableStringBuilder setSpanColor(final String str,final String text,final int color,final SpannableClickListener listener) 
        SpannableStringBuilder ssb = new SpannableStringBuilder(str);

        if (str.contains(text)) 
            ssb.setSpan(new ClickableSpan() 
                @Override
                public void onClick(View view) 
                    listener.onClickListener(view);
                

                @Override
                public void updateDrawState(TextPaint ds) 
                    ds.setColor(getResources().getColor(color));
                
            , str.indexOf(text), str.indexOf(text)
                    + text.length(), 0);
        
        return ssb;

    

    interface SpannableClickListener
        public void onClickListener(View view);
    

【讨论】：

还是同样的问题。在编辑文本中不再可选择文本。

【参考方案4】：

以上答案很有帮助。希望以下内容也对您有所帮助：

    android:linksClickable="true"
    android:autoLink="web"

 val message: String = String.format(
        getString(R.string.message_content),
        firstNameEditText.text,
        lastNameEditText.text,
        dateTextView.text,
        timeTextView.text
    )

    val gMapURL = getString(R.string.google_map_location)

    // Setup my Spannable with clickable URLs
    val spannable: Spannable = SpannableString(gMapURL)
    Linkify.addLinks(spannable, Linkify.WEB_URLS)

    // Append a zero-width space to the Spannable
    val gText = TextUtils.concat(spannable, "\u200B")

    val finalText = TextUtils.concat(message, gText)
    messageContentEditText.setText(finalText)

【讨论】：

虽然这段代码 sn-p 可以解决问题，但including an explanation 确实有助于提高帖子的质量。请记住，您正在为将来的读者回答问题，而这些人可能不知道您的代码建议的原因。也请尽量不要用解释性的 cmets 挤满你的代码，这会降低代码和解释的可读性！