Android-编辑需求demo实现

看了几集Android视频，没什么感觉，做完demo后大概了解了Android中一个功能实现的逻辑流程，Android主要做的是前台，在手机上显示效果。后台的接口方法都是写好的，相当于别人发布的服务，通过访问他们的URL读取数据来显示。

首先建立Androidproject，然后建包的格式：bean（主要放公共URL和实体java）、ui包中放activity对象，res下的layout中放各个xml页面，最后Mainfest.xml配置一下通信权限，如果里面有多个activity，要设置访问首页。

Activity.java:

package com.example.shizhan.ui;import com.alibaba.fastjson.JSON;import com.android.volley.RequestQueue;import com.android.volley.Response;import com.android.volley.VolleyError;import com.android.volley.Request.Method;import com.android.volley.toolbox.StringRequest;import com.android.volley.toolbox.Volley;import com.example.shizhan.R;import com.example.shizhan.bean.DemandInfoVo;import com.example.shizhan.bean.DemandinfoEntity;import com.example.shizhan.bean.URL;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.LinearLayout;import android.widget.TextView;import android.widget.Toast;public class EditxuqiuActivity extends Activity implements OnClickListener {private TextView txtxuqiuzhuti;private TextView txtcoursetype;private TextView txtshangkedidian;private TextView txtshangkeshijian;private TextView txtyusuan;private TextView txtmiaoshu;private TextView txtname;private TextView txtlianxifangshi;private TextView txtguoqishijian;private LinearLayout linertehme;private RequestQueue mQueue;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.activity_editxuqiu);mQueue = Volley.newRequestQueue(EditxuqiuActivity.this);initView();GetOrderData();}     //绑定控件public void initView() {txtxuqiuzhuti = (TextView) findViewById(R.id.editxuqiu_xuqiuzhutiid);txtcoursetype = (TextView) findViewById(R.id.editxuqiu_personid);txtshangkedidian = (TextView) findViewById(R.id.editxuqiu_shangkedidianid);txtshangkeshijian = (TextView) findViewById(R.id.editxuqiu_shangkeshijianid);txtyusuan = (TextView) findViewById(R.id.editxuqiu_yusuanid);txtmiaoshu = (TextView) findViewById(R.id.editxuqiu_miaoshuid);txtname = (TextView) findViewById(R.id.editxuqiu_nameid);txtlianxifangshi = (TextView) findViewById(R.id.editxuqiu_lianxifangshiid);txtguoqishijian = (TextView) findViewById(R.id.editxuqiu_guoqishijianid);linertehme = (LinearLayout) findViewById(R.id.editxuqiu_linear);linertehme.setOnClickListener(this);}//网络请求，读数据库public void GetOrderData() {String urlString = URL.EDITXUQIU_URL;StringRequest stringRequest = new StringRequest(Method.GET, urlString,new Response.Listener<String>() {@Overridepublic void onResponse(String response) {DemandInfoVo demandInfoVo = null;// json 转换为实体demandInfoVo = JSON.parseObject(response.toString(),DemandInfoVo.class);DemandinfoEntity demandinfoEntity = demandInfoVo.getDemandInfo();setData(demandinfoEntity);}}, new Response.ErrorListener() {@Overridepublic void onErrorResponse(VolleyError error) {Toast.makeText(getBaseContext(), "请求失败?",Toast.LENGTH_LONG).show();}});mQueue.add(stringRequest);}//查询出来数据给页面控件赋值public void setData(DemandinfoEntity demandinfoEntity) {txtxuqiuzhuti.setText(demandinfoEntity.getDemandITheme());txtcoursetype.setText(demandinfoEntity.getCourseType());txtshangkedidian.setText(demandinfoEntity.getPlace());txtshangkeshijian.setText(demandinfoEntity.getOpenTime());txtyusuan.setText(demandinfoEntity.getBudget());txtmiaoshu.setText(demandinfoEntity.getMoreDescribe());txtname.setText(demandinfoEntity.getContactWay());txtlianxifangshi.setText(demandinfoEntity.getContacts());txtguoqishijian.setText(demandinfoEntity.getOverdueDate());}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.editxuqiu_linear:Intent intent = new Intent();intent.setClass(EditxuqiuActivity.this, MessageActivity.class);startActivity(intent);break;default:break;}}}

URL.java:

package com.example.shizhan.bean;public class URL {private static String urlPrefix = "http://120.25.249.94/jrkj/GetJrkjData.ashx?op=";/** * 注册 */public final static String REGISTER_URL = urlPrefix + "RegistUser";/** * 编辑需求URL */public final static String EDITXUQIU_URL = urlPrefix + "queryOneDemandInfo";/** * 消息URL */public final static String MESSAGE_URL = urlPrefix + "queryMessageRelationData";}

Mainfest.xml:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.shizhan"    android:versionCode="1"    android:versionName="1.0" >    <!-- 设置通信权限 -->    <uses-permission android:name="android.permission.INTERNET" />    <uses-sdk        android:minSdkVersion="7"        android:targetSdkVersion="21" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@android:style/Theme.Light.NoTitleBar" >        <activity            android:name="com.example.shizhan.MainActivity"            android:label="@string/app_name" >            <!--            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>            -->        </activity>        <!-- 注册 -->        <activity            android:name="com.example.shizhan.ui.RegesiterActivity"            android:label="@string/app_name" >            <!-- 设置启动开启页面 -->        </activity>        <!-- 编辑需求界面 -->        <activity            android:name="com.example.shizhan.ui.EditxuqiuActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <!-- 消息界面 -->        <activity            android:name="com.example.shizhan.ui.MessageActivity"            android:label="@string/app_name" >            <!--            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>            -->        </activity>    </application></manifest>

多多动下你的手指，神奇一直都在发生着！

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