xmmdream/PraiseTextView

一个TextView实现点赞功能 朋友圈 微博 点赞 praise

PraiseTextView

说明

我是将朋友圈分成了几个独立模块单独自定义的View，通过回调完成交互，耦合性算是非常低了，主要有以下及部分：

1.评论布局（自定义TextView）

CommentListTextView

Lu_PingLunLayout

2.点赞布局（原理和评论的自定义TextView一样，都是用的SpannableString）

PraiseTextView

3.图片列表（出门右转，理论上没有数量限制，和listView配合使用也很好，缓存也自己处理了）

MultiImageViewLayout

我也是找第三方例子不好找，于是自己写了一个，我和同事还打算做一套IM系统，app和后台都要做，我们自己定义sdk，我们还要封装H5，类似hbuilder如果有什么问题，可以联系我，

QQ:1264957104

CSDN:http://blog.csdn.net/hnsugar

GitHub:https://github.com/hnsugar

个人做测试项目的服务器:http://lujianchao.com

链接是跳转到GitHub的，部分文章我会直接贴出关键View的代码。

示例

##主要方法## mPraiseTextView.setData (mPraiseInfos);//设置数据 mPraiseTextView.setNameTextColor (Color.BLUE);//设置名字字体颜色 mPraiseTextView.setIcon (R.drawable.emoji_1f0cf);//设置图标 mPraiseTextView.setMiddleStr ("，");//设置分割文本 mPraiseTextView.setIconSize (new Rect (0,0,100,100));//设置图标大小，默认与字号匹配 mPraiseTextView.setonPraiseListener()//设置监听

onClick (int position, PraiseTextView.PraiseInfo mPraiseInfo)

position是第几个点赞的人，mInfo是这条点赞的信息

onOtherClick

内部处理了点击文字会触发两个回调的问题，这个是点击非文字或者没有单独定义点击事件的回调

布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.lujianchao.praisetextview.MainActivity">

    <com.lujianchao.praisetextview.PraiseTextView
	android:layout_width="match_parent"
	android:id="@+id/praisetextview"
	android:layout_height="wrap_content"
	/>

    <TextView
	android:id="@+id/log"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:scrollbars="vertical"/>
</LinearLayout>

代码

public class MainActivity extends AppCompatActivity {
    private PraiseTextView mPraiseTextView;
    private TextView mTextView;

    @Override
    protected void onCreate (Bundle savedInstanceState) {
	super.onCreate (savedInstanceState);
	setContentView (R.layout.activity_main);
	mPraiseTextView = (PraiseTextView) findViewById (R.id.praisetextview);
	mTextView = (TextView) findViewById (R.id.log);
	mTextView.setMovementMethod (ScrollingMovementMethod.getInstance ());


	List<PraiseTextView.PraiseInfo> mPraiseInfos = new ArrayList<> ();
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (111).setNickname ("张三").setLogo ("http://lujianchao.com/images/headimg/1.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (222).setNickname ("张四").setLogo ("http://lujianchao.com/images/headimg/2.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (333).setNickname ("张五").setLogo ("http://lujianchao.com/images/headimg/3.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (444).setNickname ("张六").setLogo ("http://lujianchao.com/images/headimg/4.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (555).setNickname ("赵四").setLogo ("http://lujianchao.com/images/headimg/5.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (666).setNickname ("赵三").setLogo ("http://lujianchao.com/images/headimg/6.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (777).setNickname ("李大").setLogo ("http://lujianchao.com/images/headimg/7.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (888).setNickname ("李二").setLogo ("http://lujianchao.com/images/headimg/8.jpg"));
	mPraiseInfos.add (new PraiseTextView.PraiseInfo ().setId (999).setNickname ("李三").setLogo ("http://lujianchao.com/images/headimg/9.jpg"));
	mPraiseTextView.setData (mPraiseInfos);//设置数据
	mPraiseTextView.setNameTextColor (Color.BLUE);//设置名字字体颜色
	mPraiseTextView.setIcon (R.drawable.emoji_1f0cf);//设置图标
	mPraiseTextView.setMiddleStr ("，");//设置分割文本
	mPraiseTextView.setIconSize (new Rect (0,0,100,100));//设置图标大小，默认与字号匹配
	mPraiseTextView.setonPraiseListener (new PraiseTextView.onPraiseClickListener () {
	    @Override
	    public void onClick (final int position, final PraiseTextView.PraiseInfo mPraiseInfo) {
	       mTextView.append ("position = [" + position + "], mPraiseInfo = [" + mPraiseInfo + "]"+"\r\n");
	    }

	    @Override
	    public void onOtherClick () {
		mTextView.append ("onOtherClick"+"\r\n");
	    }
	});
    }
}

##源码## package com.lujianchao.praisetextview;

import android.content.Context;
import android.graphics.Color;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextPaint;
import android.text.TextUtils;
import android.text.method.LinkMovementMethod;
import android.text.style.ClickableSpan;
import android.text.style.ImageSpan;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TextView;

import java.util.List;

/**
 * Created by lujianchao on 2017/1/23.
 *
 * @author lujianchao
 */

public class PraiseTextView extends TextView {
    private List<PraiseInfo> mPraiseInfos;
    private onPraiseClickListener mListener;
    /**
     * 第一个显示的图标
     */
    private int mIcon = R.drawable.emoji_1f0cf;
    /**
     * 名字文字颜色，分割文本用textview默认的，自行设置即可
     */
    private int mNameTextColor = Color.GREEN;
    /**
     * 不设置默认与文字大小匹配
     */
    private Rect mIconSize = null;
    /**
     * 中间分割的文本
     */
    private String mMiddleStr = "，";
    private boolean isClickName = false;

    public PraiseTextView (Context context) {
        super (context);
    }

    public PraiseTextView (Context context, AttributeSet attrs) {
        super (context, attrs);
    }

    public onPraiseClickListener getonPraiseListener () {
        return mListener;
    }

    public PraiseTextView setonPraiseListener (onPraiseClickListener mListener) {
        this.mListener = mListener;
        return this;
    }

    public String getMiddleStr () {
        return mMiddleStr;
    }

    public PraiseTextView setMiddleStr (final String mMiddleStr) {
        this.mMiddleStr = mMiddleStr;
        return this;
    }

    public int getIcon () {
        return mIcon;
    }

    public PraiseTextView setIcon (int mIcon) {
        this.mIcon = mIcon;
        return this;
    }

    public int getNameTextColor () {
        return mNameTextColor;
    }

    public PraiseTextView setNameTextColor (int mNameTextColor) {
        this.mNameTextColor = mNameTextColor;
        return this;
    }

    public Rect getIconSize () {
        return mIconSize;
    }

    /**
     * 不设置默认与文字大小匹配
     */
    public PraiseTextView setIconSize (Rect mIconSize) {
        this.mIconSize = mIconSize;
        return this;
    }

    public PraiseTextView setData (List<PraiseInfo> mPraiseInfos) {
        this.mPraiseInfos = mPraiseInfos;
        this.setHighlightColor (Color.TRANSPARENT);
        this.setMovementMethod (LinkMovementMethod.getInstance ());
        this.setText (getPraiseString ());
        this.setOnClickListener (new OnClickListener () {
            @Override
            public void onClick (final View mView) {
                if (isClickName) {
                    isClickName=false;
                    return;
                }
                if (mListener != null) {
                    mListener.onOtherClick ();
                }
            }
        });
        return this;
    }

    private SpannableStringBuilder getPraiseString () {
        SpannableStringBuilder mBuilder = new SpannableStringBuilder ("我");
        mBuilder.setSpan (new iconimage (getResources ().getDrawable (mIcon)), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        for (int mI = 0; mI < mPraiseInfos.size (); mI++) {
            if (!TextUtils.isEmpty (mPraiseInfos.get (mI).getNickname ())) {
                mBuilder.append (mPraiseInfos.get (mI).getNickname () + mMiddleStr);
                final int finalMI = mI;
                mBuilder.setSpan (new ClickableSpan () {
                    @Override
                    public void onClick (final View mView) {
                        isClickName = true;
                        if (mListener != null) {
                            mListener.onClick (finalMI, mPraiseInfos.get (finalMI));
                        }
                    }

                    @Override
                    public void updateDrawState (final TextPaint ds) {
                        super.updateDrawState (ds);
                        ds.setUnderlineText (false);
                        ds.setColor (mNameTextColor);
                    }
                }, mBuilder.length () - mPraiseInfos.get (mI).getNickname ().length () - mMiddleStr.length (), mBuilder.length () - mMiddleStr.length (), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
        }
        mBuilder = new SpannableStringBuilder (mBuilder, 0, mBuilder.length () - 1);
        mBuilder.append (" ");
        return mBuilder;
    }

    public interface onPraiseClickListener {
        public void onClick (int position, PraiseInfo mPraiseInfo);

        public void onOtherClick ();
    }

    public static class PraiseInfo {
        private int id;
        private String nickname;
        private String logo;

        @Override
        public String toString () {
            return "PraiseInfo{" +
                    "id=" + id +
                    ", nickname='" + nickname + '\'' +
                    ", logo='" + logo + '\'' +
                    '}';
        }

        public int getId () {
            return id;
        }

        public PraiseInfo setId (final int mId) {
            id = mId;
            return this;
        }

        public String getNickname () {
            return nickname;
        }

        public PraiseInfo setNickname (final String mNickname) {
            nickname = mNickname;
            return this;
        }

        public String getLogo () {
            return logo;
        }

        public PraiseInfo setLogo (final String mLogo) {
            logo = mLogo;
            return this;
        }
    }

    public class iconimage extends ImageSpan {
        private Drawable mDrawable;

        public iconimage (Drawable d) {
            super (d);
            mDrawable = d;
        }

        @Override
        public Drawable getDrawable () {
            if (mIconSize == null) {
                Rect mRect = new Rect ();
                getPaint ().getTextBounds ("我", 0, 1, mRect);
                mDrawable.setBounds (mRect);
            } else {
                mDrawable.setBounds (mIconSize);
            }
            return mDrawable;
        }
    }
}