前言：
各位同学大家好有段时间没有给大家更新文章，具体多久我也不记得，最近在学习鸿蒙开发，就模仿boss直聘app的一些经典页面写了一个鸿蒙的开源demo 希望能帮助到各位同学学习 那么废话不多说，我们正式开始。
准备工作
1 安装鸿蒙开发环境 大家可以看我之前的文章
华为鸿蒙系统开发初体验 ：https://www.jianshu.com/p/f94c847c7fdc
效果图：
QQ截图20210118222943.png
QQ截图20210118223003.png
QQ截图20210118223029.png
QQ截图20210118223042.png
具体实现：
因为我们要做底部tab切换的效果 ，所以我查阅了很多鸿蒙的文档 希望能够有跟安卓里面的fragment 或者iOS里面的viewcontroller 给我们用这样可以做到每个碎片也逻辑分离 但是事与愿违，最后我想到用布局显示影藏 来做到切换的效果 这样做坏处是当每个切换的页面逻辑复杂了我们不好处理 代码冗余 ，但是没有办法 目前就简单粗暴实现效果 后面再想办法优化
底部tab布局
<DirectionalLayout
ohos:id="$+id:bottom_dl"
ohos:height="60vp"
ohos:width="match_parent"
ohos:orientation="horizontal"
ohos:align_parent_bottom="true"
>
<DirectionalLayout
ohos:id="$+id:job_page_dl"
ohos:height="match_parent"
ohos:width="0"
ohos:weight="1"
ohos:orientation="vertical"
>
<Image
ohos:id="$+id:job_page_image"
ohos:height="match_content"
ohos:width="match_content"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:image_src="$media:ic_main_tab_find_pre"
>
</Image>
<Text
ohos:id="$+id:job_page_text"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:layout_alignment="horizontal_center"
ohos:text="职位"
ohos:text_color="#008577"
ohos:layout_direction="locale"
ohos:text_size="15vp"
ohos:left_margin="20vp"
>
</Text>
</DirectionalLayout>
<DirectionalLayout
ohos:id="$+id:company_page_dl"
ohos:height="match_parent"
ohos:width="0"
ohos:weight="1"
ohos:orientation="vertical"
>
<Image
ohos:id="$+id:company_page_image"
ohos:height="match_content"
ohos:width="match_content"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:image_src="$media:ic_main_tab_company_nor"
>
</Image>
<Text
ohos:id="$+id:company_page_text"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:text="公司"
ohos:text_color="#6B6B6B"
ohos:text_size="15vp"
ohos:left_margin="20vp"
>
</Text>
</DirectionalLayout>
<DirectionalLayout
ohos:id="$+id:chat_page_dl"
ohos:height="match_parent"
ohos:width="0"
ohos:weight="1"
ohos:orientation="vertical"
>
<Image
ohos:id="$+id:chat_page_image"
ohos:height="match_content"
ohos:width="match_content"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:image_src="$media:ic_main_tab_company_nor"
>
</Image>
<Text
ohos:id="$+id:chat_page_text"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:text="消息"
ohos:text_color="#6B6B6B"
ohos:text_size="15vp"
ohos:left_margin="20vp"
>
</Text>
</DirectionalLayout>
<DirectionalLayout
ohos:id="$+id:mine_page_dl"
ohos:height="match_parent"
ohos:width="0"
ohos:weight="1"
ohos:orientation="vertical"
>
<Image
ohos:id="$+id:mine_page_image"
ohos:height="match_content"
ohos:width="match_content"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:image_src="$media:ic_main_tab_my_nor"
>
</Image>
<Text
ohos:id="$+id:mine_page_text"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:layout_alignment="vertical_center|horizontal_center"
ohos:text="我的"
ohos:text_color="#6B6B6B"
ohos:text_size="15vp"
ohos:left_margin="20vp"
>
</Text>
</DirectionalLayout>
</DirectionalLayout>
底部布局简单说下是一个线性布局 DirectionalLayout 水平方向里面写了四个 DirectionalLayout 线性布局 然后每个线性布局里面嵌套一个inage图片空间和text文本控件来显示底部的tab
控件初始化
job_pageimage= (Image) findComponentById(ResourceTable.Id_job_page_image);
company_page_image= (Image) findComponentById(ResourceTable.Id_company_page_image);
chat_page_image= (Image) findComponentById(ResourceTable.Id_chat_page_image);
mine_page_image= (Image) findComponentById(ResourceTable.Id_mine_page_image);
job_pagetext= (Text) findComponentById(ResourceTable.Id_job_page_text);
company_page_text= (Text) findComponentById(ResourceTable.Id_company_page_text);
chat_page_text= (Text) findComponentById(ResourceTable.Id_chat_page_text);
mine_page_text= (Text) findComponentById(ResourceTable.Id_mine_page_text);
job_pagedl= (DirectionalLayout) findComponentById(ResourceTable.Id_job_page_dl);
company_page_dl= (DirectionalLayout)
findComponentById(ResourceTable.Id_company_page_dl);
chat_page_dl= (DirectionalLayout) findComponentById(ResourceTable.Id_chat_page_dl);
mine_page_dl= (DirectionalLayout) findComponentById(ResourceTable.Id_mine_page_dl);
jop_page_module= (DirectionalLayout) findComponentById(ResourceTable.Id_jop_page_module);
company_page_module= (DirectionalLayout)
findComponentById(ResourceTable.Id_company_page_module);
chat_page_module= (DirectionalLayout) findComponentById(ResourceTable.Id_chat_page_module);
mine_page_module= (DirectionalLayout) findComponentById(ResourceTable.Id_mine_page_module);
listContainer= (ListContainer) findComponentById(ResourceTable.Id_jop_page_list);
companylistComtainer= (ListContainer) findComponentById(ResourceTable.Id_company_page_list);
messagelistComtainer= (ListContainer) findComponentById(ResourceTable.Id_message_page_list);
job_pagedl.setClickedListener(this);
company_page_dl.setClickedListener(this);
chat_page_dl.setClickedListener(this);
mine_page_dl.setClickedListener(this);
点击事件
@Override
public void onClick(Component component) {
switch (component.getId()){
case ResourceTable.Id_job_page_dl:
job_pageimage.setPixelMap(ResourceTable.Media_ic_main_tab_find_pre);
company_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_company_nor);
chat_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_contacts_nor);
mine_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_my_nor);
job_pagetext.setTextColor(Color.GREEN);
company_page_text.setTextColor(Color.GRAY);
chat_page_text.setTextColor(Color.GRAY);
mine_page_text.setTextColor(Color.GRAY);
layoutShow(0);
break;
case ResourceTable.Id_company_page_dl:
job_pageimage.setPixelMap(ResourceTable.Media_ic_main_tab_find_nor);
company_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_company_pre);
chat_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_contacts_nor);
mine_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_my_nor);
job_pagetext.setTextColor(Color.GRAY);
company_page_text.setTextColor(Color.GREEN);
chat_page_text.setTextColor(Color.GRAY);
mine_page_text.setTextColor(Color.GRAY);
layoutShow(1);
break;
case ResourceTable.Id_chat_page_dl:
job_pageimage.setPixelMap(ResourceTable.Media_ic_main_tab_find_nor);
company_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_company_nor);
chat_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_contacts_pre);
mine_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_my_nor);
job_pagetext.setTextColor(Color.GRAY);
company_page_text.setTextColor(Color.GRAY);
chat_page_text.setTextColor(Color.GREEN);
mine_page_text.setTextColor(Color.GRAY);
layoutShow(2);
break;
case ResourceTable.Id_mine_page_dl:
super.setMainRoute(MinepageAbilitySlice.class.getName());
job_pageimage.setPixelMap(ResourceTable.Media_ic_main_tab_find_nor);
company_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_company_nor);
chat_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_contacts_nor);
mine_page_image.setPixelMap(ResourceTable.Media_ic_main_tab_my_pre);
job_pagetext.setTextColor(Color.GRAY);
company_page_text.setTextColor(Color.GRAY);
chat_page_text.setTextColor(Color.GRAY);
mine_page_text.setTextColor(Color.GREEN);
layoutShow(3);
break;
default:
break;
}
}
封装一个方式来处理4个布局显示影藏
public void layoutShow(int code){
switch (code){
case 0:
jop_page_module.setVisibility(0);
company_page_module.setVisibility(1);
chat_page_module.setVisibility(1);
mine_page_module.setVisibility(1);
getPostition();
break;
case 1:
jop_page_module.setVisibility(1);
company_page_module.setVisibility(0);
chat_page_module.setVisibility(1);
mine_page_module.setVisibility(1);
getCompany();
break;
case 2:
jop_page_module.setVisibility(1);
company_page_module.setVisibility(1);
chat_page_module.setVisibility(0);
mine_page_module.setVisibility(1);
getMessage();
break;
case 3:
jop_page_module.setVisibility(1);
company_page_module.setVisibility(1);
chat_page_module.setVisibility(1);
mine_page_module.setVisibility(0);
break;
default:
break;
}
}
然后我们观察职位模块 公司模块 消息模块都是上面一个标题 下面是列表 我这边就拿一个模块举例
职位模块
<DirectionalLayout
ohos:id="$+id:jop_page_module"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:above="$id:bottom_dl"
ohos:visibility="visible"
ohos:orientation="vertical"
>
<DependentLayout
ohos:height="50vp"
ohos:width="match_parent"
ohos:background_element="$graphic:background_green"
>
<Text
ohos:height="match_content"
ohos:width="match_content"
ohos:horizontal_center="true"
ohos:vertical_center="true"
ohos:text="职位"
ohos:text_color="#ffffff"
ohos:text_size="25vp"
></Text>
</DependentLayout>
<ListContainer
ohos:id="$+id:jop_page_list"
ohos:height="match_parent"
ohos:width="match_parent">
</ListContainer>
</DirectionalLayout>
职位模块布局上门是一个 DependentLayout 嵌套一个text 显示标题 下面是ListContainer 列表组件
初始化控件
代码块 listContainer= (ListContainer) findComponentById(ResourceTable.Id_jop_page_list);
获取数据
这边是本地的模拟的数据
public static String getPositioninfo(){
String str="{\n" +
" \"msg\": \"获取数据成功\",\n" +
" \"code\": 200,\n" +
" \"data\": [\n" +
" {\n" +
" \"id\": 4,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 5,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 6,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 7,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 8,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 9,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 10,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 11,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 12,\n" +
" \"name\": \"资深安卓工程师\",\n" +
" \"cname\": \"今日头条\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"40K-60K\",\n" +
" \"username\": \"Kimi\",\n" +
" \"title\": \"HR\"\n" +
" },\n" +
" {\n" +
" \"id\": 13,\n" +
" \"name\": \"移动端架构师\",\n" +
" \"cname\": \"银汉游戏\",\n" +
" \"size\": \"B轮\",\n" +
" \"salary\": \"15K-20K\",\n" +
" \"username\": \"刘丽\",\n" +
" \"title\": \"人事主管\"\n" +
" },\n" +
" {\n" +
" \"id\": 14,\n" +
" \"name\": \"Java工程师\",\n" +
" \"cname\": \"37互娱\",\n" +
" \"size\": \"D轮\",\n" +
" \"salary\": \"25K-30K\",\n" +
" \"username\": \"Reiki\",\n" +
" \"title\": \"HR-M\"\n" +
" }\n" +
" ]\n" +
"}";
return str;
}
用gson解析将json数据转成bean 然后获取里面 List<PositionInfo.DataBean> list
public void getPostition(){
Gson gson=new Gson();
PositionInfo positionInfo=gson.fromJson(Api.getPositioninfo(),PositionInfo.class);
List<PositionInfo.DataBean> list=positionInfo.getData();
positionProvider=new PositionProvider(list,MainAbility.this);
listContainer.setItemProvider(positionProvider);
}
ListContainer的适配器
package com.example.hms_boss.provider;
import com.example.hms_boss.MainAbility;
import com.example.hms_boss.ResourceTable;
import com.example.hms_boss.bean.PositionInfo;
import ohos.agp.components.*;
import java.util.List;
public class PositionProvider extends RecycleItemProvider {
private List<PositionInfo.DataBean> list;
private MainAbility slice;
public PositionProvider(List<PositionInfo.DataBean> list, MainAbility slice) {
this.list = list;
this.slice = slice;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int position) {
return list.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public Component getComponent(int i, Component component, ComponentContainer componentContainer) {
if (component== null) {
Component cpt = LayoutScatter.getInstance(slice).parse(ResourceTable.Layout_position_listview_item,null,false);
PositionInfo.DataBean dataBean = list.get(i);
Text position_nametext =(Text) cpt.findComponentById(ResourceTable.Id_position_name);
Text position_namesizetext =(Text) cpt.findComponentById(ResourceTable.Id_position_namesize);
Text text_hr =(Text) cpt.findComponentById(ResourceTable.Id_text_hr);
Text position_salary_text =(Text) cpt.findComponentById(ResourceTable.Id_position_salary);
position_nametext.setText(dataBean.getName());
position_namesizetext.setText(dataBean.getCname()+dataBean.getSize());
text_hr.setText(dataBean.getUsername()+"|"+dataBean.getTitle());
position_salary_text.setText(dataBean.getSalary());
return cpt;
} else {
return component;
}
}
}
ListContainer 设置适配器
companyProvicer=new CompanyProvicer(datalist,MainAbility.this);
companylistComtainer.setItemProvider(companyProvicer);
到此鸿蒙模仿boss直聘客户端就讲完了 其他页面的实现都差别不大大家可以去下载完整代码查阅
最后总结
这次开发这个鸿蒙模仿boss直聘客户端 demo给我的感觉 鸿蒙跟现在安卓iOS比起来 差距还是有 我这边是用的java UI来布局的 基础的fragment或者viewcontroller 这样的控件都没有提供 感觉这个操纵系统还是很简陋 路还很长 不过好消息是很多基于java的库是在安卓 java EE 鸿蒙上面是通用的 我这边用json解析就是用google的gson来处理 非常方便 总而言之华为很长的路要走 ，我们只能一边默默支持一边耐心的等待华为王者归来
