Android 版本更新

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Looper;
import android.view.KeyEvent;

import com.taihe.mplus.GloableParams;
import com.taihe.mplus.api.Api;
import com.taihe.mplus.api.net.CallbackListener;
import com.taihe.mplus.bean.ResultObjectData;
import com.taihe.mplus.bean.Version;
import com.taihe.mplus.widget.CustomDialog;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import cz.msebera.android.httpclient.HttpEntity;
import cz.msebera.android.httpclient.HttpResponse;
import cz.msebera.android.httpclient.client.ClientProtocolException;
import cz.msebera.android.httpclient.client.HttpClient;
import cz.msebera.android.httpclient.client.methods.HttpGet;
import cz.msebera.android.httpclient.impl.client.DefaultHttpClient;

/**
 * @outher 孙磊磊
 * create at 2016/2/26 17:32
 * description 版本更新控制类
 */
public class VersionManager {
    public VersionManager(Context context) {
        this.mContext = context;
    }

    private Context mContext;

    //安装apk
    protected void installApk(File file) {
        Intent intent = new Intent();
        //执行动作
        intent.setAction(Intent.ACTION_VIEW);
        //执行的数据类型
        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
        mContext.startActivity(intent);
        ((Activity) mContext).finish();
    }
    /**
     * 返回当前程序版本名
     */
    public static String getAppVersionName(Context context) {
        String versionName = "";
        int versioncode;
        try {
            // ---get the package info---
            PackageManager pm = context.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0);
            versionName = pi.versionName;
            versioncode = pi.versionCode;
            if (versionName == null || versionName.length() <= 0) {
                return "";
            }
        } catch (Exception e) {
            L.e("VersionInfo", "Exception"+e.getMessage());
        }
        return versionName;
    }
    /**
     * @author 孙磊磊
     * create at 2016/2/27 10:48
     * description 检查版本信息
     */
    public void CheckVersion() {
        Map, String> params = new HashMap, String>();
        if (GloableParams.user != null) {
            params.put("memberCode", GloableParams.user.getMemberCode());
        }
        params.put("vCode", getAppVersionName(mContext));
        params.put("cinemaCode", GloableParams.cinema_code);
        params.put("channelCode", "1");
        params.put("appType", "0");
        RequestUtils.executeRequest(Api.VERSION, params, new CallbackListener() {
            @Override
            public void onSuccess(String data) {
                ResultObjectData resultObjectData = new ResultObjectData(data);
                if (resultObjectData.isSucess()) {
                    Version version = resultObjectData.getResultData(Version.class);
                    if( !getAppVersionName(mContext).equals(version.getvCode()))
                    {
                        dialog(version);
                    }
                }
            }

            @Override
            public void onFailure(String message) {
            }
        });
    }

    /**
     * @author 孙磊磊
     * create at 2016/2/27 10:48
     * description 弹窗，是否更新
     */
    protected void dialog( Version version ) {
        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.setMessage(version.getvContent());
        builder.setTitle(version.getvTitle());
        builder.setCancelable(false);
        builder.setOnKeyListener(new DialogInterface.OnKeyListener() {
            @Override
            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                return true;
            }
        });
        builder.setPositiveButton("更新", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                downFile(version.getDownLoadPath());
            }
        });
        if(version.getForceUpdate().equals("0"))
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        builder.create().show();
    }

    /**
     * @author 孙磊磊
     * create at 2016/2/27 10:49
     * description 下载apk
     */
    void downFile(final String url) {
        final ProgressDialog pBar = new ProgressDialog(mContext);    //进度条，在下载的时候实时更新进度，提高用户友好度
        pBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        pBar.setCancelable(false);
        pBar.setOnKeyListener(new DialogInterface.OnKeyListener() {
            @Override
            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                return true;
            }
        });
        pBar.setTitle("正在下载");
        pBar.setMessage("请稍候...");
        pBar.setProgress(0);
        pBar.setProgressNumberFormat("%1d kb/%2d kb");
        pBar.show();
        new Thread() {
            public void run() {
                HttpClient client = new DefaultHttpClient();
                HttpGet get = new HttpGet(url);
                HttpResponse response;
                try {
                    response = client.execute(get);
                    HttpEntity entity = response.getEntity();
                    int length = (int) entity.getContentLength();   //获取文件大小
                    pBar.setMax(length/1000);                            //设置进度条的总长度
                    InputStream is = entity.getContent();
                    FileOutputStream fileOutputStream = null;
                    final File file = new File(FileUtils.getSDCardPath() + "/taihe/image/" + System.currentTimeMillis() + ".apk");
                    if (is != null) {
                        fileOutputStream = new FileOutputStream(file);
                        byte[] buf = new byte[1024];
                        int ch = -1;
                        int process = 0;
                        while ((ch = is.read(buf)) != -1) {
                            fileOutputStream.write(buf, 0, ch);
                            process += ch;
                            pBar.setProgress(process/1000);       //这里就是关键的实时更新进度了！
                        }

                    }
                    fileOutputStream.flush();
                    if (fileOutputStream != null) {
                        fileOutputStream.close();
                    }
                    new Handler(Looper.getMainLooper()).post(new Runnable() {
                        public void run() {
                            pBar.cancel();
                            if (file.length() > 0)
                                installApk(file);
                        }
                    });
                } catch (ClientProtocolException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }.start();
    }
}