Android——“i分享”APP开发Day11

通过前面一篇，“我的”页面的后台就搭建完整了，接下来就继续处理一下Android端下“我的”页面剩余还未完成的功能——修改密码、查看我的分享、查看我的日记、查看我的收藏、查看iShare相关

1.修改密码的页面设计——activity_change_password.xml

页面包括旧密码输入框、新密码输入框，具体代码如下：

<?xml version="1.0" encoding="utf-8"?>

2.修改密码页面的逻辑

在之前创建好的com.example.discover包中创建class命名为ChangePassword.java
在AndroidManifest.xml中添加配置：

ChangePassword.java文件处理的逻辑就是获取到用户的昵称、用户输入的旧密码、用户输入的新密码，然后请求已经创建好的servlet——ChangePassword，然后得到是否修改成功的返回信息，ChangePassword.java文件具体代码如下

package com.example.discover;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.os.Handler;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;import java.io.BufferedReader;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;public class ChangePassword extends Activity {    EditText old_pass_et;   //旧密码    EditText new_pass_et;   //新密码    Button sure_change_pass;   //确定修改    String baseUrl = "http://10.0.2.2:8080/iShareService/servlet/";   //web服务器的地址    String imgBaseUrl = "http://10.0.2.2:8080/iShareService/images/";  //图片资源    String userName,oldPass,newPass;   //存放用户基本信息    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_change_password);        old_pass_et = (EditText) findViewById(R.id.et_old_login_password); //新密码        new_pass_et = (EditText) findViewById(R.id.et_new_login_password); //新密码        sure_change_pass = (Button)findViewById(R.id.bt_change_password) ;//确定修改密码的按钮        setBaseInfo();        sure_change_pass.setOnClickListener(new ChangePassword.onClick());    }    class onClick implements View.OnClickListener {        @Override        public void onClick(View v) {            oldPass = old_pass_et.getText().toString();            newPass = new_pass_et.getText().toString();            StringBuilder stringBuilder = new StringBuilder();            BufferedReader buffer = null;            HttpURLConnection connGET = null;            if(oldPass.length()==0||newPass.length()==0){                Toast.makeText(ChangePassword.this, "密码不能为空", Toast.LENGTH_LONG).show();                return;            }            try {                String registerUrl = baseUrl+"ChangePassword?oldPass="+oldPass+"&newPass="+newPass+"&username="+userName;                URL url = new URL(registerUrl);                connGET = (HttpURLConnection) url.openConnection();                connGET.setConnectTimeout(5000);                connGET.setRequestMethod("GET");                if (connGET.getResponseCode() == 200) {                    buffer = new BufferedReader(new InputStreamReader(connGET.getInputStream()));                    for (String s = buffer.readLine(); s != null; s = buffer.readLine()) {                        stringBuilder.append(s);                    }                    Toast.makeText(ChangePassword.this, stringBuilder.toString(), Toast.LENGTH_LONG).show();                    //通过handler设置延时1秒后执行r任务，跳转到我的页面                    new Handler().postDelayed(new ChangePassword.LoadMainTask(),500);                    buffer.close();                }else{                    Toast.makeText(ChangePassword.this,"非200.."+connGET.getResponseCode() , Toast.LENGTH_LONG).show();                }            } catch (Exception e) {                e.printStackTrace();                Toast.makeText(ChangePassword.this, "get 提交 err.." + e.toString(), Toast.LENGTH_LONG).show();            }        }    }    //启动线程,加载我的页面    private class LoadMainTask implements Runnable{        @Override        public void run() {            Intent intent = new Intent(ChangePassword.this,MyTabFragment.class);            /*startActivity(intent);*/            setResult(2, intent); //这里的2就对应到onActivityResult（）方法中的resultCode            finish();        }    }    //获取用户信息    public void setBaseInfo(){        //获取最新的登录状态，SharePreferences为永久存储，需要手动退出        SharedPreferences sp = ChangePassword.this.getSharedPreferences("save", Context.MODE_PRIVATE);        userName = sp.getString("name","");    }}

3.我的分享、我的日记、我的收藏页面设计

这三个功能按钮都是跳转到的页面其实是同一个，只不过内容获取是不一样的，所以在这里只需要写一个详情页就可以了
在layout下新建activity_about_me.xml文件，在该布局下就只需要要一个ListView就可以了，详细代码如下：

<?xml version="1.0" encoding="utf-8"?>

4.我的分享、我的日记、我的收藏页面的逻辑

在已经创建好的com.example.discover包中创建class——MyShareList.java
因为是跳转页面，所以在AndroidMainifest.xml中要添加配置

该文件处理的主要部分就是，获取到上一个页面传递的type（用于判断请求的是我的分享、我的日记还是我的收藏），然后获取到该用户的昵称，通过这两个参数请求后台的servlet——QueryAboutMe.java，返回相对应类型的内容，MyShareList.java具体代码如下：

package com.example.discover;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.graphics.Bitmap;import android.os.Bundle;import android.os.Handler;import android.os.StrictMode;import android.view.View;import android.view.ViewGroup;import android.widget.AbsListView;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import com.example.bean.FindInfo;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.util.ArrayList;import java.util.List;import java.util.concurrent.ScheduledExecutorService;public class MyShareList extends Activity implements AbsListView.OnScrollListener{    Activity mActivity;     //存放当前的activity    String baseUrl = "http://10.0.2.2:8080/iShareService/servlet/";   //web服务器的地址    String imgBaseUrl = "http://10.0.2.2:8080/iShareService/images/";  //图片资源    int requestType=0;   //请求类型，0：我的分享、1：我的日记；2：我的收藏    String userName="";    String requestUrl="";    private TextView title;    private MyShareList.PaginationAdapter adapterAction;    private ScheduledExecutorService scheduledExecutorService;    private ListView listView;    private int page = 1; //请求页数    private int count = 10; //每次请求的数量    private int visibleLastIndex = 0;  //最后的可视项索引    private int visibleItemCount;    // 当前窗口可见项总数    private int dataSize = 28;     //数据集的条数    private MyShareList.PaginationAdapter adapter;    private View loadMoreView;    private Button loadMoreButton;    private Handler handler = new Handler();    //返回测试信息    /*TextView testTxt;*/    public  void refreshDiscover(){        page = 1;        visibleLastIndex = 0;        listView.setAdapter(null);   //将ListView控件的内容清空        initializeAdapter();        listView.setAdapter(adapter);        adapter.notifyDataSetChanged();    }    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_about_me);        mActivity = MyShareList.this;        //取得启动该Activity的Intent对象        Intent intent =getIntent();        //获取最新的登录状态，SharePreferences为永久存储，需要手动退出        SharedPreferences sp = MyShareList.this.getSharedPreferences("save", Context.MODE_PRIVATE);        userName = sp.getString("name","");        requestType =intent.getIntExtra("requestType",0);        //取出Intent中附加的数据        if(requestType==0){            requestUrl = baseUrl+"QueryAboutMe?username="+userName+"&type=0&page="+page+"&count="+count;        }else if(requestType==1){            requestUrl = baseUrl+"QueryAboutMe?username="+userName+"&type=1&page="+page+"&count="+count;        }else{            requestUrl = baseUrl+"QueryAboutMe?username="+userName+"&type=2&page="+page+"&count="+count;        }        loadMoreView = getLayoutInflater().inflate(R.layout.activity_find_loadmore, null);        loadMoreButton = (Button)loadMoreView.findViewById(R.id.loadMoreButton);        loadMoreButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                loadMoreButton.setText("正在加载中...");  //设置按钮文字                handler.postDelayed(new Runnable() {                    @Override                    public void run() {                        loadMoreData();                        adapter.notifyDataSetChanged();                        loadMoreButton.setText("查看更多..."); //恢复按钮文字                    }                },2000);            }        });        //返回测试信息        /* testTxt = (TextView)getActivity().findViewById(R.id.test_discover_tab);*/        listView = (ListView)findViewById(R.id.my_share_listView);        listView.addFooterView(loadMoreView);  //设置列表底部视图        initializeAdapter();        listView.setAdapter(adapter);        listView.setOnScrollListener(this);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                TextView getTvId = (TextView)view.findViewById(R.id.cardId);                /*Toast.makeText(mActivity,"点击了"+getTvId.getText().toString()+"id", Toast.LENGTH_SHORT).show();*/                SharedPreferences sp = mActivity.getSharedPreferences("save", Context.MODE_PRIVATE);                Boolean isLogin = sp.getBoolean("isLogin",false);                if(isLogin){                    //点击了进入详情                    Intent display_info_intent = new Intent();                    display_info_intent.setClass(mActivity, DisplayDetail.class);  //创建intent对象，并制定跳转页面                    display_info_intent.putExtra("infoId",getTvId.getText().toString());                    mActivity.setResult(1, display_info_intent); //这里的1就对应到onActivityResult（）方法中的resultCode                    startActivity(display_info_intent);    //跳转到详情页面                }else{                    //尚未登录                    Toast.makeText(MyShareList.this,"请先登录", Toast.LENGTH_LONG).show();                }            }        });    }    @Override    public void onScrollStateChanged(AbsListView view, int scrollState) {        int itemsLastIndex = adapter.getCount()-1; //数据集最后一项的索引        int lastIndex = itemsLastIndex + 1;        if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE                && visibleLastIndex == lastIndex) {            // 如果是自动加载,可以在这里放置异步加载数据的代码        }    }    @Override    public void onScroll(AbsListView view, int firstVisibleItem,                         int visibleItemCount, int totalItemCount) {        this.visibleItemCount = visibleItemCount;        visibleLastIndex = firstVisibleItem + visibleItemCount - 1;  //最后的可视项索引        //如果所有的记录选项等于数据集的条数，则移除列表底部视图        if(totalItemCount == dataSize+1){            listView.removeFooterView(loadMoreView);            Toast.makeText(MyShareList.this,  "数据全部加载完!", Toast.LENGTH_LONG).show();        }    }    /**     * 查询数据库中的数据     */    private JSONArray loadDataFromDataBase(String loadDataUrl){        StringBuilder stringBuilder = new StringBuilder();        BufferedReader buffer = null;        HttpURLConnection connGET = null;        try {            URL url = new URL(loadDataUrl);            connGET = (HttpURLConnection) url.openConnection();            connGET.setConnectTimeout(5000);            connGET.setRequestMethod("GET");            if (connGET.getResponseCode() == 200) {                buffer = new BufferedReader(new InputStreamReader(connGET.getInputStream()));                for (String s = buffer.readLine(); s != null; s = buffer.readLine()) {                    stringBuilder.append(s);                }                if(stringBuilder.toString()!="null"){                    //返回测试信息                    JSONArray jsonArray = new JSONArray(stringBuilder.toString());                    //获取到的数据，对Json进行解析                    page = page+1;  //一次成功请求后更新请求页面                    buffer.close();                    return jsonArray;                }else{                    return null;                }            }else{                Toast.makeText(MyShareList.this,"非200", Toast.LENGTH_LONG).show();            }        } catch (Exception e) {            e.printStackTrace();            Toast.makeText(MyShareList.this, "get 提交 err.." + e.toString(), Toast.LENGTH_LONG).show();        }        return null;    }    //初始化将详情设置到FindInfo bean中    public List initSetDataToBean(String detail){        List findInfo = new ArrayList();        try {            JSONArray detailJsonArray = new JSONArray(detail);            for (int i = 0; i < detailJsonArray.length(); i++) {                FindInfo items = new FindInfo();                JSONObject temp = (JSONObject) detailJsonArray.get(i);                Integer infoId = temp.getInt("infoId");    //内容ID                String infoTitle = temp.getString("infoTitle");   //内容标题                String infoDescribe = temp.getString("infoDescribe");   //内容简述                String infoDetail = temp.getString("infoDetail");   //内容详情                Integer type = temp.getInt("infoType");    //类型：0表示日记，1表示趣事                Integer support = temp.getInt("infoSupport");   //点赞数                String infoAuthor = temp.getString("infoAuthor");  //作者                items.setInfoId(infoId);                items.setInfoTitle(infoTitle);                items.setInfoDescribe(infoDescribe);                items.setInfoDetail(infoDetail);                items.setType(type);                items.setSupport(support);                items.setInfoAuthor(infoAuthor);                findInfo.add(items);            }            return findInfo;        }catch (JSONException e){            Toast.makeText(MyShareList.this, "initSetDataToBean异常 err.." + e.toString(), Toast.LENGTH_LONG).show();            return null;        }    }    //加载更多将详情设置到FindInfo bean中    public void loadMoreSetDataToBean(String detail){        try {            JSONArray detailJsonArray = new JSONArray(detail);            for (int i = 0; i < detailJsonArray.length(); i++) {                FindInfo items = new FindInfo();                JSONObject temp = (JSONObject) detailJsonArray.get(i);                Integer infoId = temp.getInt("infoId");    //内容ID                String infoTitle = temp.getString("infoTitle");   //内容标题                String infoDescribe = temp.getString("infoDescribe");   //内容简述                String infoDetail = temp.getString("infoDetail");   //内容详情                Integer type = temp.getInt("infoType");    //类型：0表示日记，1表示趣事                Integer support = temp.getInt("infoSupport");   //点赞数                String infoAuthor = temp.getString("infoAuthor");  //作者                items.setInfoId(infoId);                items.setInfoTitle(infoTitle);                items.setInfoDescribe(infoDescribe);                items.setInfoDetail(infoDetail);                items.setType(type);                items.setSupport(support);                items.setInfoAuthor(infoAuthor);                adapter.addNewsItem(items);   //与初始化是有差异的            }        }catch (JSONException e){            Toast.makeText(MyShareList.this, "loadMoreSetDataToBean异常 err.." + e.toString(), Toast.LENGTH_LONG).show();        }    }    /**     * 初始化ListView的适配器，即打开页面展示的数据     */    private void initializeAdapter(){        // 设置线程策略        setVersion();        JSONArray jsonArray = loadDataFromDataBase(requestUrl);        if(jsonArray!=null){            try {                JSONObject totalObject = (JSONObject)jsonArray.get(0);                dataSize = totalObject.getInt("totalRecord");  //总记录数                String detail= totalObject.getString("RecordDetail");   //详情                if(initSetDataToBean(detail)!=null) {                    adapter = new MyShareList.PaginationAdapter(initSetDataToBean(detail));   //将详情设置到bean中                }            }catch (JSONException e){                Toast.makeText(MyShareList.this, "initializeAdapter异常 err.." + e.toString(), Toast.LENGTH_LONG).show();            }        }else{            listView.removeFooterView(loadMoreView);            Toast.makeText(MyShareList.this, "查询为空" , Toast.LENGTH_LONG).show();        }    }    //APP如果在主线程中请求网络操作，将会抛出异常，所以需要用线程来操作网络请求    void setVersion() {        StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()                .detectDiskReads()                .detectDiskWrites()                .detectNetwork()                .penaltyLog()                .build());        StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()                .detectLeakedSqlLiteObjects() //探测SQLite数据库操作                .penaltyLog() //打印logcat                .penaltyDeath()                .build());    }    /**     * 加载更多数据     */    private void loadMoreData(){        JSONArray jsonArray = loadDataFromDataBase(requestUrl);        try {            JSONObject total = (JSONObject) jsonArray.get(0);            dataSize = total.getInt("totalRecord");  //总记录数            String detail= total.getString("RecordDetail");   //详情            loadMoreSetDataToBean(detail);   //将更多的详情设置到bean中        }catch (JSONException e){            Toast.makeText(MyShareList.this, "loadMoreData()异常 err.." + e.toString(), Toast.LENGTH_LONG).show();        }    }    /**     * 将一组数据传到ListView等UI显示组件     */    class PaginationAdapter extends BaseAdapter {        List newsItems;        public PaginationAdapter(List newsitems) {            this.newsItems = newsitems;        }        @Override        public int getCount() {            return newsItems.size();        }        @Override        public Object getItem(int position) {            return newsItems.get(position);        }        @Override        public long getItemId(int position) {            return position;        }        //在这里将Item设置到每个卡片        @Override        public View getView(int position, View view, ViewGroup parent) {            if (view == null) {                view = getLayoutInflater().inflate(R.layout.activity_find_list_item, null);            }            //标题            TextView tvTitle = (TextView) view.findViewById(R.id.cardTitle);            tvTitle.setText(newsItems.get(position).getInfoTitle());            //文章ID            TextView tvId = (TextView) view.findViewById(R.id.cardId);            tvId.setText(newsItems.get(position).getInfoId().toString());            int type = newsItems.get(position).getType();            if (type == 0 || type == 3) {                ImageView cardImgTip = (ImageView) view.findViewById(R.id.cardImgTip);                if (type == 0) {                    cardImgTip.setImageResource(R.drawable.share_funny_select);                } else {                    cardImgTip.setImageResource(R.drawable.share_diary_select);                }                TextView tvContent = (TextView) view.findViewById(R.id.cardContent);                tvContent.setVisibility(View.VISIBLE);  //显示文字框                ImageView ivContent = (ImageView) view.findViewById(R.id.cardContent_pic);                ivContent.setVisibility(View.GONE);   //设置图片显示框隐藏                LinearLayout layoutMusic = (LinearLayout) view.findViewById(R.id.cardContent_music);                layoutMusic.setVisibility(View.GONE);   //设置音乐显示框隐藏                //分享的普通内容                tvContent.setText(newsItems.get(position).getInfoDescribe());            } else if (type == 1) {                ImageView cardImgTip = (ImageView) view.findViewById(R.id.cardImgTip);                cardImgTip.setImageResource(R.drawable.share_pic_select);                //分享图片                TextView tvContent = (TextView) view.findViewById(R.id.cardContent);                tvContent.setVisibility(View.GONE);  //隐藏文字框                LinearLayout layoutMusic = (LinearLayout) view.findViewById(R.id.cardContent_music);                layoutMusic.setVisibility(View.GONE);   //设置音乐显示框隐藏                ImageView ivContent = (ImageView) view.findViewById(R.id.cardContent_pic);                //通过网络链接获取图片                Bitmap one;                String describeUrl = newsItems.get(position).getInfoDescribe().trim();                try {                    one = LoadImgByNet.getBitmap(imgBaseUrl + describeUrl);  //设置图片                    ivContent.setImageBitmap(one);                } catch (IOException e) {                    e.printStackTrace();                }                ivContent.setVisibility(View.VISIBLE);   //设置图片显示框            } else if (type == 2) {                ImageView cardImgTip = (ImageView) view.findViewById(R.id.cardImgTip);                cardImgTip.setImageResource(R.drawable.share_music_select);                //分享的音乐                TextView tvContent = (TextView) view.findViewById(R.id.cardContent);                tvContent.setVisibility(View.GONE);  //显示文字框                ImageView ivContent = (ImageView) view.findViewById(R.id.cardContent_pic);                ivContent.setVisibility(View.GONE);   //设置图片显示框隐藏                LinearLayout layoutMusic = (LinearLayout) view.findViewById(R.id.cardContent_music);                TextView tvMusicContent = (TextView) view.findViewById(R.id.cardTitle_music);                tvMusicContent.setText(newsItems.get(position).getInfoDescribe());                layoutMusic.setVisibility(View.VISIBLE);   //设置音乐显示框显示            }            return view;        }        /**         * 添加数据列表项         *         * @param infoItem         */        public void addNewsItem(FindInfo infoItem) {            newsItems.add(infoItem);        }        }    }

5.iShare相关页面设计

在layout下新建文件activity_about_ishare.xml，具体代码如下
这个页面设计比较简单，主要就是介绍iShare应用的开发目的和实现功能，没有功能，只是展示信息

<?xml version="1.0" encoding="utf-8"?>

6.“我的”页面跳转事件

打开之前创建好的MyTabFragment.java文件，给对应的五个Button——“修改密码”、“查看我的分享”、“查看我的日记”、“查看我的收藏”、“查看iShare相关”添加点击监听

//“我的”页面中相关点击事件    class mClick implements View.OnClickListener {        public void onClick(View v) {            if(isLogin) {                if (v == account_set_bt) {                    //点击了账号管理                    Intent account_manage_intent = new Intent();                    account_manage_intent.setClass(mActivity, AccountManagement.class);  //创建intent对象，并制定跳转页面                    startActivity(account_manage_intent);    //跳转到账号管理页面                /*TextView textView = (TextView) getActivity().findViewById(R.id.test_text_view);  //用于放测试的提示信息                Toast.makeText(getActivity(), textView.getText(), Toast.LENGTH_LONG).show();*/                }else if(v == signature_set_bt){                    //点击了更改签名                    Intent signature_manage_intent = new Intent();                    signature_manage_intent.setClass(mActivity, ChangeSignature.class);  //创建intent对象，并指定跳转页面                    //startActivity(signature_manage_intent);    //跳转到更新签名页面                    startActivityForResult(signature_manage_intent,1);   //需要返回该页面                }else if(v == password_set_bt){                    //点击了更改密码                    Intent password_manage_intent = new Intent();                    password_manage_intent.setClass(mActivity, ChangePassword.class);  //创建intent对象，并指定跳转页面                    /*startActivity(password_manage_intent);   */                    startActivityForResult(password_manage_intent,2);   // 跳转到修改密码页面                }else if(v == share_list_bt){                    //点击了我的分享                    Intent intent = new Intent();                    intent.setClass(mActivity, MyShareList.class);  //创建intent对象，并指定跳转页面                    intent.putExtra("requestType",0);                    mActivity.setResult(4, intent); //这里的4就对应到onActivityResult（）方法中的resultCode                    startActivity(intent);    //跳转到list                }else if(v==diary_list_bt){                    //点击了我的日记                    Intent intent = new Intent();                    intent.setClass(mActivity, MyShareList.class);  //创建intent对象，并指定跳转页面                    intent.putExtra("requestType",1);                    mActivity.setResult(5, intent); //这里的4就对应到onActivityResult（）方法中的resultCode                    startActivity(intent);    //跳转到list                }else if(v==focus_list_bt){                    //点击了我的收藏                    Intent intent = new Intent();                    intent.setClass(mActivity, MyShareList.class);  //创建intent对象，并指定跳转页面                    intent.putExtra("requestType",2);                    mActivity.setResult(6, intent); //这里的4就对应到onActivityResult（）方法中的resultCode                    startActivity(intent);    //跳转到list                } else if(v==about_iShare){                    //点击了关于iShare                    Intent about_iShare_intent = new Intent();                    about_iShare_intent.setClass(mActivity, AboutIShare.class);  //创建intent对象，并指定跳转页面                    startActivity(about_iShare_intent);    //跳转到iShare介绍页面                }            }else{                Toast.makeText(getActivity(), "请先登录！", Toast.LENGTH_LONG).show();            }        }    }

——到这整个iShare项目就开发完成了，整个过程可能会有部分代码或者配置不是很完整，接下来将会分模块写一下整个项目的详细代码，以及如何运行整个项目和运行的结果

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