AppStoreDemo

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公司提的需求，在App中嵌入一个App下载模块，支持下载，安装，暂停，继续等操作。
使用的是Xutils框架，现在把这个功能提取出来了。
关于Xutils：http://blog.csdn.net/hello_12413/article/details/47032131
项目：https://github.com/SunnyLine/AppStoreDemo
页面不多，一共三，一个App列表，一个详情页，一个下载管理页面。效果如下：
这里写图片描述

下面贴上App列表的代码：

package com.example.appstoredemo.activity;import java.util.ArrayList;import java.util.List;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ListView;import com.example.appstoredemo.R;import com.example.appstoredemo.adapter.AppRecommendAdapter;import com.example.appstoredemo.bean.AppBean;import com.example.appstoredemo.utils.AssetsHelper;import com.lidroid.xutils.ViewUtils;import com.lidroid.xutils.view.annotation.ViewInject;public class MainActivity extends BaseActivity implements OnItemClickListener {    List<AppBean> mList;    @ViewInject(R.id.lv)    private ListView lv;    private AppRecommendAdapter adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ViewUtils.inject(this);        setTitle("App列表");        initJson();        adapter = new AppRecommendAdapter(this, mList);        lv.setAdapter(adapter);        lv.setOnItemClickListener(this);    }    @Override    protected void onResume() {        super.onResume();        adapter.notifyDataSetChanged();    }    @Override    protected void onDestroy() {        super.onDestroy();    }    // 读取assets文件夹中数据    public void initJson() {        AssetsHelper assetsHelper = new AssetsHelper();        mList = new ArrayList<AppBean>();        String json = assetsHelper.getFromAssets(this, "json");        try {            JSONArray array = new JSONObject(json).optJSONArray("apklist");            if (null != array) {                for (int i = 0; i < array.length(); i++) {                    AppBean appBean = new AppBean();                    appBean.parserJson(array.optJSONObject(i));                    mList.add(appBean);                }            }        } catch (JSONException e1) {            e1.printStackTrace();        }    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {        AppBean appBean = (AppBean) parent.getItemAtPosition(position);        Intent intent = new Intent(this, AppDetialActivity.class);        intent.putExtra("data", appBean);        startActivity(intent);    }}

Item布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@drawable/bg_item_shape"    android:descendantFocusability="blocksDescendants"    android:padding="10dip" >    <FrameLayout        android:id="@+id/frame1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_centerVertical="true" >        <ImageView            android:id="@+id/img_icon"            android:layout_width="50dip"            android:layout_height="50dip"            android:src="@drawable/ic_launcher" />    </FrameLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_centerVertical="true"        android:layout_marginLeft="10dip"        android:layout_toLeftOf="@+id/rel1"        android:layout_toRightOf="@+id/frame1"        android:orientation="vertical" >        <TextView            android:id="@+id/tv_company"            style="@style/txt_gay_14"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginBottom="5dip"            android:singleLine="true"            android:text="新浪网络技术股份有限公司" />        <TextView            android:id="@+id/tv_title"            style="@style/txt_black_18"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:singleLine="true"            android:text="新浪微博" />        <TextView            android:id="@+id/tv_size"            style="@style/txt_black_14"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginTop="5dip"            android:singleLine="true"            android:text="34.2M" />    </LinearLayout>    <RelativeLayout        android:id="@+id/rel1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_centerVertical="true" >        <Button            android:id="@+id/btn_down"            style="@style/txt_white_14"            android:layout_width="80dip"            android:layout_height="wrap_content"            android:layout_centerHorizontal="true"            android:background="@drawable/bg_yellow_selector"            android:focusable="true"            android:gravity="center"            android:padding="10dip"            android:text="@string/tv_down" />    </RelativeLayout></RelativeLayout>

适配器

package com.example.appstoredemo.adapter;import java.io.File;import java.lang.ref.WeakReference;import java.util.List;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.example.appstoredemo.R;import com.example.appstoredemo.bean.AppBean;import com.example.appstoredemo.download.DownloadInfo;import com.example.appstoredemo.download.DownloadManager;import com.example.appstoredemo.download.DownloadService;import com.example.appstoredemo.utils.BitmapTools;import com.example.appstoredemo.utils.Common;import com.example.appstoredemo.utils.DownloadUtils;import com.example.appstoredemo.utils.FileUtils;import com.lidroid.xutils.ViewUtils;import com.lidroid.xutils.exception.DbException;import com.lidroid.xutils.exception.HttpException;import com.lidroid.xutils.http.HttpHandler;import com.lidroid.xutils.http.ResponseInfo;import com.lidroid.xutils.http.callback.RequestCallBack;import com.lidroid.xutils.util.LogUtils;import com.lidroid.xutils.view.annotation.ViewInject;import com.lidroid.xutils.view.annotation.event.OnClick;/** * @project AppStoreDemo * @ClassName AppRecommendAdapter.java * @Description 下载列表 * @author xugang * @date 2015-8-16 下午4:16:43 */public class AppRecommendAdapter extends BaseAdapter {    private List<AppBean> mList;    private LayoutInflater mInflater;    private BitmapTools mBitmapTools;    private Context mContext;    private DownloadManager downloadManager;    public AppRecommendAdapter(Context context, List<AppBean> mList) {        this.mList = mList;        mInflater = LayoutInflater.from(context);        mBitmapTools = new BitmapTools(context);        this.mContext = context;        downloadManager = DownloadService.getDownloadManager(context);    }    @Override    public int getCount() {        return mList.size();    }    @Override    public Object getItem(int position) {        return mList.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View view, ViewGroup parent) {        ViewHolder holder;        if (null == view) {            view = mInflater.inflate(R.layout.item_recommend, parent, false);            holder = new ViewHolder(position);            ViewUtils.inject(holder, view);            view.setTag(holder);        } else {            holder = (ViewHolder) view.getTag();        }        holder.setRequest();        holder.refresh();        return view;    }    private class ViewHolder {        @ViewInject(R.id.img_icon)        private ImageView icon;        @ViewInject(R.id.tv_size)        private TextView size;        @ViewInject(R.id.tv_title)        private TextView title;        @ViewInject(R.id.tv_company)        private TextView company;        @ViewInject(R.id.btn_down)        private Button down;        private AppBean appBean;        private DownloadInfo downloadInfo;        private DownloadUtils downloadUtils;        public ViewHolder(int position) {            appBean = mList.get(position);            downloadUtils = new DownloadUtils(mContext, downloadManager, appBean);        }        //设置监听        public void setRequest() {            downloadInfo = downloadManager.getDownloadInfoByList(appBean.getApkUrl());            if (downloadInfo != null) {                HttpHandler<File> handler = downloadInfo.getHandler();                if (handler != null) {                    RequestCallBack callBack = handler.getRequestCallBack();                    if (callBack instanceof DownloadManager.ManagerCallBack) {                        DownloadManager.ManagerCallBack managerCallBack = (DownloadManager.ManagerCallBack) callBack;                        managerCallBack.setBaseCallBack(new DownloadRequestCallBack());                    }                    callBack.setUserTag(new WeakReference<ViewHolder>(this));                }            }        }        @OnClick(R.id.btn_down)        public void start(View v) {            downloadInfo = downloadManager.getDownloadInfoByList(appBean.getApkUrl());            if (downloadInfo == null) {                downloadUtils.downApp(new DownloadRequestCallBack());                notifyDataSetChanged();                return;            }            HttpHandler.State state = downloadInfo.getState();            switch (state) {            case WAITING:                Toast.makeText(mContext, "排队中，请稍后~", Toast.LENGTH_SHORT).show();                return;            case STARTED:            case LOADING:                Toast.makeText(mContext, "正在下载，请稍后~", Toast.LENGTH_SHORT).show();                break;            case FAILURE:            case CANCELLED:                try {                    downloadManager.resumeDownload(downloadInfo, new DownloadRequestCallBack());                } catch (DbException e) {                    LogUtils.e(e.getMessage(), e);                }                notifyDataSetChanged();                break;            case SUCCESS:                if (Common.isAppInstall(mContext, downloadInfo.getPkg())) {                    down.setText(R.string.tv_open);                    Common.openApp(mContext, downloadInfo.getPkg());                } else {                    down.setText(R.string.tv_install);                    if (FileUtils.exists(downloadInfo.getFileSavePath())) {                        Common.installAPK(mContext, downloadInfo.getFileSavePath());                    }                }                break;            default:                break;            }        }        public void refresh() {            mBitmapTools.disPlay(icon, appBean.getIcon());            title.setText(appBean.getName());            size.setText(appBean.getSize());            company.setText(appBean.getCompany());            if (Common.isAppInstall(mContext, appBean.getPkg())) {                down.setText("打开");                return;            }            if (downloadInfo == null) {                down.setText("下载");                return;            }            if (downloadInfo.getFileLength() > 0) {                int progress = (int) (downloadInfo.getProgress() * 100 / downloadInfo.getFileLength());                down.setText(progress + "%");            } else {                down.setText("0%");            }            HttpHandler.State state = downloadInfo.getState();            switch (state) {            case WAITING:                down.setText("等待中...");                break;            case STARTED:                down.setText("开始下载");                break;            case LOADING:                break;            case CANCELLED:                down.setText("继续");                break;            case SUCCESS:                down.setText("安装");                break;            case FAILURE:                down.setText("重试");                break;            default:                break;            }        }    }    private class DownloadRequestCallBack extends RequestCallBack<File> {        private void refreshListItem() {            if (userTag == null)                return;            WeakReference<ViewHolder> tag = (WeakReference<ViewHolder>) userTag;            ViewHolder holder = (ViewHolder) tag.get();            if (holder != null) {                holder.refresh();            }        }        @Override        public void onStart() {            refreshListItem();        }        @Override        public void onLoading(long total, long current, boolean isUploading) {            refreshListItem();        }        @Override        public void onSuccess(ResponseInfo<File> responseInfo) {            refreshListItem();        }        @Override        public void onFailure(HttpException error, String msg) {            refreshListItem();        }        @Override        public void onCancelled() {            refreshListItem();        }    }}

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