如何在RecyclerView的Textview上設置clickablesp

Question

我有recyclevwq和textvies，並且textview中的文本有urlss，我想在textview上設置setclickablespan並捕獲url。

我使用這個accepted answer，它不工作。

這是我的代碼：

public class LibAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { 
    private Context mContext; 
    private List<LibItem> mLibItemList; 

    private final int HEAD_VIEW = 0; 
    private final int LIB_VIEW = 1; 

    public LibAdapter(List<LibItem> libItems, Context context) { 
     super(); 
     this.mLibItemList = libItems; 
     this.mContext = context; 
    } 

    @Override 
    public int getItemViewType(int position) { 
     if (isPositionItem(position)) { 
      return HEAD_VIEW; 
     } 
     return LIB_VIEW; 
    } 

    private boolean isPositionItem(int position) { 
     return position == 0; 
    } 

    @Override 
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     if (viewType == LIB_VIEW) { 
      View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.library_item, parent, false); 
      return new LibHolder(view); 
     } else if (viewType == HEAD_VIEW) { 
      View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.about_hedaer, parent, false); 
      return new HeadHolder(view); 
     } 
     return null; 
    } 

    @Override 
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { 
     if (holder instanceof LibHolder) { 
      final LibItem libItem = mLibItemList.get(position); 
      ((LibHolder) holder).libName.setText(libItem.getLibName()); 
      ((LibHolder) holder).libCopy.setText(Html.fromHtml(libItem.getLibCopy())); 
      ((LibHolder) holder).libLic.setText(mContext.getString(R.string.proj_license)); 

      setTextViewHTML(((LibHolder) holder).libWeb, mContext.getString(R.string.proj_code, libItem.getLibWebs())); 
      ((LibHolder) holder).libLic.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        Log.d("LibAdapter", "License of " + libItem.getLibName() + "clicked"); 
       } 
      }); 
     } else if (holder instanceof HeadHolder){ 
      String versionCode = BuildConfig.VERSION_NAME; 
      ((HeadHolder) holder).abtVersion.setText(mContext.getString(R.string.app_version, versionCode)); 
     } 
    } 

    protected void makeLinkClickable(SpannableStringBuilder strBuilder, final URLSpan span) 
    { 
     int start = strBuilder.getSpanStart(span); 
     int end = strBuilder.getSpanEnd(span); 
     int flags = strBuilder.getSpanFlags(span); 
     ClickableSpan clickable = new ClickableSpan() { 
      public void onClick(View view) { 
       Log.d("LipAdapter", span.getURL()); 
      } 
     }; 
     strBuilder.setSpan(clickable, start, end, flags); 
     strBuilder.removeSpan(span); 
    } 

    protected void setTextViewHTML(TextView text, String html) 
    { 
     CharSequence sequence = Html.fromHtml(html); 
     SpannableStringBuilder strBuilder = new SpannableStringBuilder(sequence); 
     URLSpan[] urls = strBuilder.getSpans(0, sequence.length(), URLSpan.class); 
     for(URLSpan span : urls) { 
      makeLinkClickable(strBuilder, span); 
     } 
     text.setText(strBuilder); 
     text.setMovementMethod(LinkMovementMethod.getInstance()); 
    } 



    @Override 
    public int getItemCount() { 
     return mLibItemList.size(); 
    } 

    public class LibHolder extends RecyclerView.ViewHolder { 
     @BindView(R.id.lib_name) TextView libName; 
     @BindView(R.id.lib_website) TextView libWeb; 
     @BindView(R.id.lib_copyright) TextView libCopy; 
     @BindView(R.id.lib_license) TextView libLic; 

     public LibHolder(View itemView) { 
      super(itemView); 
      ButterKnife.bind(this, itemView); 
     } 
    } 

    public class HeadHolder extends RecyclerView.ViewHolder { 
     @BindView(R.id.abt_version) TextView abtVersion; 

     public HeadHolder(View itemView) { 
      super(itemView); 
      ButterKnife.bind(this, itemView); 
     } 
    } 
} 

文字設定相當好的，但拒絕鏈接被點擊。 請問你有這個解決方案嗎？

Answer 1

你正在嘗試這種::

protected void makeLinkClickable(SpannableStringBuilder strBuilder, final URLSpan span) 
{ 
    int start = strBuilder.getSpanStart(span); 
    int end = strBuilder.getSpanEnd(span); 
    int flags = strBuilder.getSpanFlags(span); 
    ClickableSpan clickable = new ClickableSpan() { 
     public void onClick(View view) { 
      Log.d("LipAdapter", span.getURL()); 
     } 
    }; 
    strBuilder.setSpan(clickable, start, end, flags); 
    strBuilder.removeSpan(span); 
} 

但你需要做這樣的事情::

protected void makeLinkClickable(SpannableStringBuilder strBuilder, final URLSpan span) 
{ 
    int start = strBuilder.getSpanStart(span); 
    int end = strBuilder.getSpanEnd(span); 
    int flags = strBuilder.getSpanFlags(span); 


    ClickableSpan clickable = new ClickableSpan() { 
     @Override 
     public void onClick(View widget) { 
      Log.d("LipAdapter", span.getURL()); 
     } 

     @Override 
     public void updateDrawState(TextPaint ds) { 
      super.updateDrawState(ds); 
     } 
    }; 

    strBuilder.setSpan(clickable, start, end, flags); 
    strBuilder.removeSpan(span); 
} 

希望它會爲別人

Answer 2

工作，我有同樣的問題，必須輸入sequence到Spannable以使其正常工作。

只需更換

SpannableStringBuilder strBuilder = new SpannableStringBuilder(sequence); 

與

Spannable strBuilder = (Spannable) sequence;