Android实现朋友圈评论回复列表

public class CommentsView extends LinearLayout { private Context mContext; private List<CommentsBean> mDatas; private onItemClickListener listener; public CommentsView(Context context) { this(context, null); } public CommentsView(Context context, @Nullable AttributeSet attrs) { this(context, attrs, 0); } public CommentsView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); setOrientation(VERTICAL); this.mContext = context; } /** * 设置评论列表信息 * * @param list */ public void setList(List<CommentsBean> list) { mDatas = list; } public void setOnItemClickListener(onItemClickListener listener) { this.listener = listener; } public void notifyDataSetChanged() { removeAllViews(); if (mDatas == null || mDatas.size() <= 0) { return; } LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); layoutParams.setMargins(0, 10, 0, 10); for (int i = 0; i < mDatas.size(); i++) { View view = getView(i); if (view == null) { throw new NullPointerException("listview item layout is null, please check getView()..."); } addView(view, i, layoutParams); } } private View getView(final int position) { final CommentsBean item = mDatas.get(position); UserBean replyUser = item.getReplyUser(); boolean hasReply = false; // 是否有回复 if (replyUser != null) { hasReply = true; } TextView textView = new TextView(mContext); textView.setTextSize(15); textView.setTextColor(0xff686868); SpannableStringBuilder builder = new SpannableStringBuilder(); UserBean comUser = item.getCommentsUser(); String name = comUser.getUserName(); if (hasReply) { builder.append(setClickableSpan(name, item.getCommentsUser())); builder.append(" 回复 "); builder.append(setClickableSpan(replyUser.getUserName(), item.getReplyUser())); } else { builder.append(setClickableSpan(name, item.getCommentsUser())); } builder.append(" : "); builder.append(setClickableSpanContent(item.getContent(), position)); textView.setText(builder); // 设置点击背景色 textView.setHighlightColor(getResources().getColor(android.R.color.transparent)); // textView.setHighlightColor(0xff000000); textView.setMovementMethod(new CircleMovementMethod(0xffcccccc, 0xffcccccc)); textView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (listener != null) { listener.onItemClick(position, item); } } }); return textView; } /** * 设置评论内容点击事件 * * @param item * @param position * @return */ public SpannableString setClickableSpanContent(final String item, final int position) { final SpannableString string = new SpannableString(item); ClickableSpan span = new ClickableSpan() { @Override public void onClick(View widget) { // TODO: 2017/9/3 评论内容点击事件 Toast.makeText(mContext, "position: " + position + " , content: " + item, Toast.LENGTH_SHORT).show(); } @Override public void updateDrawState(TextPaint ds) { super.updateDrawState(ds); // 设置显示的内容文本颜色 ds.setColor(0xff686868); ds.setUnderlineText(false); } }; string.setSpan(span, 0, string.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); return string; } /** * 设置评论用户名字点击事件 * * @param item * @param bean * @return */ public SpannableString setClickableSpan(final String item, final UserBean bean) { final SpannableString string = new SpannableString(item); ClickableSpan span = new ClickableSpan() { @Override public void onClick(View widget) { // TODO: 2017/9/3 评论用户名字点击事件 Toast.makeText(mContext, bean.getUserName(), Toast.LENGTH_SHORT).show(); } @Override public void updateDrawState(TextPaint ds) { super.updateDrawState(ds); // 设置显示的用户名文本颜色 ds.setColor(0xff387dcc); ds.setUnderlineText(false); } }; string.setSpan(span, 0, string.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); return string; } /** * 定义一个用于回调的接口 */ public interface onItemClickListener { void onItemClick(int position, CommentsBean bean); } }

public class CircleMovementMethod extends BaseMovementMethod { private final static int DEFAULT_COLOR_ID = android.R.color.transparent; /** * 整个textView的背景色 */ private int textViewBgColor; /** * 点击部分文字时部分文字的背景色 */ private int clickableSpanBgClor; private BackgroundColorSpan mBgSpan; private ClickableSpan[] mClickLinks; /** * @param clickableSpanBgClor 点击选中部分时的背景色 */ public CircleMovementMethod(int clickableSpanBgClor) { this.clickableSpanBgClor = clickableSpanBgClor; } /** * @param clickableSpanBgClor 点击选中部分时的背景色 * @param textViewBgColor 整个textView点击时的背景色 */ public CircleMovementMethod(int clickableSpanBgClor, int textViewBgColor) { this.textViewBgColor = textViewBgColor; this.clickableSpanBgClor = clickableSpanBgClor; } public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) { int action = event.getAction(); if (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); mClickLinks = buffer.getSpans(off, off, ClickableSpan.class); if (mClickLinks.length > 0) { // 点击的是Span区域，不要把点击事件传递 Selection.setSelection(buffer, buffer.getSpanStart(mClickLinks[0]), buffer.getSpanEnd(mClickLinks[0])); //设置点击区域的背景色 mBgSpan = new BackgroundColorSpan(clickableSpanBgClor); buffer.setSpan(mBgSpan, buffer.getSpanStart(mClickLinks[0]), buffer.getSpanEnd(mClickLinks[0]), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); } else { // textview选中效果 // widget.setBackgroundColor(textViewBgColor); widget.setBackgroundResource(DEFAULT_COLOR_ID); } } else if (action == MotionEvent.ACTION_UP) { if (mClickLinks.length > 0) { mClickLinks[0].onClick(widget); if (mBgSpan != null) {//移除点击时设置的背景span buffer.removeSpan(mBgSpan); } } else { } Selection.removeSelection(buffer); widget.setBackgroundResource(DEFAULT_COLOR_ID); } else if (action == MotionEvent.ACTION_MOVE) { //这种情况不用做处理 } else { if (mBgSpan != null) {//移除点击时设置的背景span buffer.removeSpan(mBgSpan); } widget.setBackgroundResource(DEFAULT_COLOR_ID); } return Touch.onTouchEvent(widget, buffer, event); } }

public class CommentsBean implements Serializable { private int commentsId; private String content; private UserBean replyUser; // 回复人信息 private UserBean commentsUser; // 评论人信息 public int getCommentsId() { return commentsId; } public void setCommentsId(int commentsId) { this.commentsId = commentsId; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } public UserBean getReplyUser() { return replyUser; } public void setReplyUser(UserBean replyUser) { this.replyUser = replyUser; } public UserBean getCommentsUser() { return commentsUser; } public void setCommentsUser(UserBean commentsUser) { this.commentsUser = commentsUser; } }

public class UserBean implements Serializable { private int userId; private String userName; public int getUserId() { return userId; } public void setUserId(int userId) { this.userId = userId; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } }

<com.lvfq.myworkingtest.dynamic.view.CommentsView android:id="@+id/commentView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="@dimen/dp_20" /> commentView = LvV.find(this, R.id.commentView); commentView.setList(Data.getComments()); commentView.setOnItemClickListener(new CommentsView.onItemClickListener() { @Override public void onItemClick(int position, CommentsBean bean) { } }); commentView.notifyDataSetChanged();

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