Android 多商品订单评价(类似淘宝)
<p>前几日一商城类项目,有一需求,需要对一份订单的里面几个商品进行分别评价(图片,文字内容,星级);以前都是对一份订单所有商品一起评价,那种简单的多;</p> <p>后来,承蒙老大细心指导,终于弄出来个看起来还算凑活的,还是先贴一下效果图吧。。。</p> <p>抖动的有点卡,gif图的问题</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/2fc560e2646d058a6a428bb45139bab0.gif"></p> <p style="text-align:center">图片的相关操作展示.gif</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/16f448653c67590467e26e0a2096c78d.gif"></p> <p>具体评价实现</p> <p>*上面这张图是订单列表,可以看到有几个商品,要对这几个商品进行分条评价;</p> <p>*这个gif图是具体的对每一个商品进行上传图片,内容,星级评价操作</p> <p>好了,下面就来分析一下怎么写出这玩意, <strong>先从布局开始</strong> :</p> <p>布局很好写,一看就可看出是一个listview,外加一个提交评论的按钮,给listview设置layout_weight属性,固定一下提交按钮的位置。</p> <pre> <code class="language-java">android:layout_weight="1"</code></pre> <p>然后就是listview的item,主要说下上传图片那一块,我添了三个imgview,比较low,做了一些判断,选择图片的控件是单选的,只好一个一个选,这样也好,比较简单清楚。</p> <p>画了张草图,大家可以看一下,方便理解;</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/be48133528e0a68aafebc7910d36daf0.png"></p> <p style="text-align:center">评价示意图.png</p> <p>着重说一下代码实现:</p> <p>1,首先,从上个订单页面传过来每个商品的id,图片,图片用于显示,商品id用来判定评价的是哪个商品,id 和图片用两个数组存起来;</p> <pre> <code class="language-java">//demo中在Mainactivity.java private List<String> img = new ArrayList<>(); private List<String> ids = new ArrayList<>();</code></pre> <p>2,要给listview 填充数据,和获得item里面的每条数据,我们就先建一个实体类GoodsAssessBean.java,数据是下面几个,里面有几个方法,列出来(因为这是每条item的数据,所以,拿到相应的东西和方法相对好实现);</p> <pre> <code class="language-java">private String id;//商品id private String icon;//商品图片 private String content ="";//商品评价内容 private ArrayList<String> imgList = new ArrayList<>();//七牛返回的图片url private ArrayList<Bitmap> bitmapList = new ArrayList<>();//本地的bitmap private String starts="0";//商品星级评定 /** * 添加或更换图片 * @param bitmap 本地 bitmap * @param index 图片的二级位置 0 或 1 或 2;初始值为0 需要加1与 bitmapList.size()比较 * @param url 七牛返回的图片地址 */ public void addOrSetImage(Bitmap bitmap, int index, String url){ //如果小于等于证明需要更换图片; if(index + 1 <= bitmapList.size()){ imgList.set(index, url); bitmapList.set(index, bitmap); }else{ //大于的话新增图片; addBitMap(bitmap); save(url); } } /** * 添加Bitmap * @param bitmap */ public void addBitMap(Bitmap bitmap){ if(bitmapList.size()<3){ bitmapList.add(bitmap); } } /** * * @param url 每个item里面的URL */ public void save(String url){ imgList.add(url); } /** * 这个方法是把七牛返回的图片地址进行拼接,用“;”隔开 * @return */ public String getItemUrl(){ String urls=""; if(imgList.size() > 0){ for(int i=0;i<imgList.size();i++){ urls+= imgList.get(i)+";"; } return urls.substring(0,urls.length()-1); }else { return " "; } } /** * 删除第几张图片 * @param index 第二层位置 */ public void deleteImg(int index){ if(imgList.size()>index){ imgList.remove(index); bitmapList.remove(index); } } /** * 把每个 item(每个商品)的评价内容,星级,图片等转成json格式; * @return */ public String toSString(){ String str = ""; ReturnBean rb = new ReturnBean(); rb.setContent(getContent()); rb.setComment_img(getItemUrl()); rb.setGoods_num(getStarts()); rb.setOrdergoods_id(getId()); try { str = JsonUtil.toJsonString(rb); } catch (IOException e) { e.printStackTrace(); } return str; } public ReturnBean getReturnBean(){ ReturnBean rb = new ReturnBean(); rb.setContent(getContent()); rb.setComment_img(getItemUrl()); rb.setGoods_num(getStarts()); rb.setOrdergoods_id(getId()); return rb; }</code></pre> <p>3,在自己写一个图片帮助类AssessImgHelp。在这个类里,我们把写一个方法,把拿到的商品id,和商品图片存到实体类里,在这里面也有些方法,列出来。</p> <pre> <code class="language-java">public ArrayList<GoodsAssessBean> mBeanList = new ArrayList<>(); public AssessImgHelp(List<String> ids,List<String> icon){ for(int i=0;i<ids.size();i++){ mBeanList.add(new GoodsAssessBean(ids.get(i), icon.get(i))); } } public ArrayList<GoodsAssessBean> getBeanList(){ return mBeanList; }· /** * * @param outIndex item的位置 相当于position * @param bitmap bitmap用于本地显士 * @param url 七牛返回地址 * @param inIndex 图片位置 */ public void doQiNiuDone(int outIndex, Bitmap bitmap, String url,int inIndex){ //哪个item调用GoodsAssessBean.java里的方法,也就是添加更换图片 mBeanList.get(outIndex).addOrSetImage(BitmapUtils.compressImage(bitmap), inIndex, url); } //长按删除图片 public void longDelete(int outIndex,int inIndex){ //调用GoodsAssessBean.java里的删除方法 mBeanList.get(outIndex).deleteImg(inIndex); } //生成json串 public String jsonSString(){ String str=""; ArrayList<ReturnBean> beanList = new ArrayList<>(); for(int i=0; i< getBeanList().size(); i++){ str += getBeanList().get(i).toSString(); beanList.add(getBeanList().get(i).getReturnBean()); } Log.e("123", "beanList" + JsonUtil.object2JSON(beanList)); return JsonUtil.object2JSON(beanList); }</code></pre> <p>4,最后一个帮助类AssessBeanUtils.java;存入list的position和每个item里面图片的位置,贴一下;</p> <pre> <code class="language-java">private int outIndex; private int inIndex; public void setBean(int outIndex,int inIndex){ this.outIndex = outIndex; this.inIndex = inIndex; } public int getOutIndex() { return outIndex; } public int getInIndex() { return inIndex; }</code></pre> <p>5,好的,现在到目前为止,我们所有的数据都能拿的到,还有一些图片的删除,更换,添加等等方法全部准备完毕,剩下的只是在MainActivity中调用即可(demo中的MainActivity),着重看几个地方;</p> <pre> <code class="language-java">//list之外的星级判定,物流,描述等获取可以用setOnRatingBarChangeListener()方法; mRatingBarMiaoshu.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() { @Override public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { miaoshu = rating + ""; } }); /* * 填充数据 * */ private void showData() { //长按图片抖动效果 final Animation anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.myanim); mAdapter = new CommonAdapter<GoodsAssessBean>(MainActivity.this, assessImgHelp.getBeanList(), R.layout.item_assess) { @Override public void convert(ViewHolder helper, final GoodsAssessBean item, final int position) { //加载商品图片 ImageLoad.loadImgDefault(MainActivity.this, (ImageView) helper.getView(R.id.m_assess), item.getIcon()); //获取商品星级评价 ((RatingBar) helper.getView(R.id.m_ratingBar_shop)).setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() { @Override public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { item.setStarts(rating + ""); } }); //获取评价内容 ((EditText) helper.getView(R.id.m_assess_edt)).addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { item.setContent(s + ""); } }); //三个imageView和三个删除按钮 final ImageView img1 = helper.getView(R.id.m_menmian1_icon); final ImageView img2 = helper.getView(R.id.m_menmian2_icon); final ImageView img3 = helper.getView(R.id.m_menmian3_icon); final ImageView imgclose1 = helper.getView(R.id.m_image_one); final ImageView imgclose2 = helper.getView(R.id.m_image_two); final ImageView imgclose3 = helper.getView(R.id.m_image_three); img1.setScaleType(ImageView.ScaleType.CENTER_CROP);//CENTER_CROP FIT_XY img2.setScaleType(ImageView.ScaleType.CENTER_CROP);//CENTER_CROP FIT_XY img3.setScaleType(ImageView.ScaleType.CENTER_CROP);//CENTER_CROP FIT_XY //获取本地图片数量。分别对应相应的显示 int size = item.getBitMapListSize(); if (size == 0) { setImageViewVisibility(img1, true, img2, false, img3, false); img1.setImageResource(R.mipmap.pj_tj);//默认图片 } else if (size == 1) { setImageViewVisibility(img1, true, img2, true, img3, false); img1.setImageBitmap(item.getBitmapList().get(0)); img2.setImageResource(R.mipmap.pj_tj); } else if (size == 2) { setImageViewVisibility(img1, true, img2, true, img3, true); img1.setImageBitmap(item.getBitmapList().get(0)); img2.setImageBitmap(item.getBitmapList().get(1)); img3.setImageResource(R.mipmap.pj_tj); } else if (size == 3) { setImageViewVisibility(img1, true, img2, true, img3, true); img1.setImageBitmap(item.getBitmapList().get(0)); img2.setImageBitmap(item.getBitmapList().get(1)); img3.setImageBitmap(item.getBitmapList().get(2)); } //点击事件 img1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.e("123", "img: " + img1.getId()); mAssessBean.setBean(position, 0);//存储一级二级位置 new PopupWindows(MainActivity.this);//弹出选择头像,相册 } }); img2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mAssessBean.setBean(position, 1); new PopupWindows(MainActivity.this); } }); img3.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mAssessBean.setBean(position, 2); new PopupWindows(MainActivity.this); } }); img1.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { //一些小细节判断,如果第一张没有图片,长按提示请选择图片 if (assessImgHelp.getBeanList().get(position).getImgListSize() > 0) { img1.startAnimation(anim);//抖动效果 imgclose1.setVisibility(View.VISIBLE);//显示删除按钮 } else { toast("请添加图片"); } return true; } }); //删除按钮点击事件 imgclose1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { assessImgHelp.longDelete(position, 0);//调用删除方法 mAdapter.notifyDataSetChanged(); imgclose1.setVisibility(View.GONE); toast("删除成功"); } }); img2.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { if (assessImgHelp.getBeanList().get(position).getImgListSize() > 1) { img2.startAnimation(anim); imgclose2.setVisibility(View.VISIBLE); } else { toast("请添加图片"); } return true; } }); imgclose2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { assessImgHelp.longDelete(position, 1); mAdapter.notifyDataSetChanged(); imgclose2.setVisibility(View.GONE); toast("删除成功"); } }); img3.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { if (assessImgHelp.getBeanList().get(position).getImgListSize() > 2) { img3.startAnimation(anim); imgclose3.setVisibility(View.VISIBLE); } else { toast("请添加图片"); } return true; } }); imgclose3.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { assessImgHelp.longDelete(position, 2); mAdapter.notifyDataSetChanged(); imgclose3.setVisibility(View.GONE); toast("删除成功"); } }); } }; mAssessList.setAdapter(mAdapter); } //图片的显示与隐藏 public void setImageViewVisibility(ImageView img1, boolean boo1, ImageView img2, boolean boo2, ImageView img3, boolean boo3) { img1.setVisibility(boo1 ? View.VISIBLE : View.GONE); img2.setVisibility(boo2 ? View.VISIBLE : View.GONE); img3.setVisibility(boo3 ? View.VISIBLE : View.GONE); }</code></pre> <p>后面的就是一些调用相册,相机,选取图片,上传七牛,还有就是6.0权限问题也有判断。</p> <p>七牛上传成功之后,调这个方法:</p> <pre> <code class="language-java">//第一个是position,第三个是七牛返回的图片地址,第四个是图片位置; assessImgHelp.doQiNiuDone(mAssessBean.getOutIndex(), bitmap, key, mAssessBean.getInIndex());</code></pre> <h3> </h3> <p> </p> <p>来自:http://www.jianshu.com/p/17763c96bfc4</p> <p> </p>
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