android应用apk升级更新

一、前言

这段时间独立完成了一个项目，想把一些常用知识点记录下来，如有不足之处还请指点。望共勉之。好啦，废话不多说直接进入正题，直接上代码，效果图我就不上了，代码是小编亲测有效，大家放心好啦。

1.首先进行本地版本与服务器版本对比，这都是老套路啦（^_^）

HttpHelper.obtain().Get(Constant.UpdateUrl, null, new ICallback() {
    @Override
    public boolean onSucess(String result) {
        updateBean = new Gson().fromJson(result, UpdateBean.class);
        int versionCode = FileProvider7Utils.getVersionName(MainActivity.this);
        Log.i("222", versionCode + "");
        //服务器版本
        int verCode = Integer.parseInt(updateBean.getVerCode());
        if (verCode > versionCode) {
            manager = new UpdateManager(MainActivity.this);
            manager.showDialog(Constant.DownAPk + updateBean.getApkName(),updateBean.getVerDesc());
        }
        return false;
    }

    @Override
    public void onFailure(String e) {
        Toast.makeText(MainActivity.this, "" + e.toString(), Toast.LENGTH_SHORT).show();
    }
});

2.取得版本号

public  static  int getVersionName(Context context)
{    int VersionName=0;
    PackageManager packageManager=context.getPackageManager();
    PackageInfo packageInfo;
    try {
        packageInfo=packageManager.getPackageInfo(context.getPackageName(),0);
        VersionName=packageInfo.versionCode;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }

    return VersionName;
}

3.UpdateManager更新类

package com.kyny.workgroup.utils;

import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.kyny.workgroup.R;
import com.kyny.workgroup.model.UpdateBean;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
 *更新工具类
 */
public class UpdateManager {
   private Dialog dialog;
   private UpdateBean updateBean;
   private static final String savePath = Environment
         .getExternalStorageDirectory().getPath() + "/本地文件名/";
   private static final String saveFileName = savePath + "xx.apk";
   private ProgressBar mProgress;
   private boolean interceptFlag = false;
   private String loadApkUrl;
   private int progress;
   private static final int DOWN_UPDATE = 1;
   private static final int DOWN_OVER = 2;
   private  Context mContext;
   private Dialog downloadDialog;
   private TextView tvProgress;

   public UpdateManager(Context mContext) {
      this.mContext = mContext;
   }
   private Handler mHandler=new Handler()
   {
      @Override
      public void handleMessage(Message msg) {
         super.handleMessage(msg);
         switch (msg.what)
         {
            case DOWN_UPDATE:
               mProgress.setProgress(progress);
               tvProgress.setText(progress+"%");
               break;
            case DOWN_OVER:
               installApk();
               break;
         }
      }
   };
   /**
    * 安装apk
    */
   private void installApk() {
      File apkfile = new File(saveFileName);
      if (!apkfile.exists()) {
         return;
      }
      Intent intent = new Intent();
      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      intent.setAction(android.content.Intent.ACTION_VIEW);
//    Uri uriForFile = FileProvider7Utils.getUriForFile(mContext, apkfile);
      FileProvider7Utils.setIntentDataAndType(mContext,intent,
            "application/vnd.android.package-archive",apkfile,true);
//    intent.setDataAndType(uriForFile,
//          "application/vnd.android.package-archive");
      mContext.startActivity(intent);
      downloadDialog.dismiss();

   }
   //升级对话框
   public  void showDialog(final String downApkUrl,String message) {
      AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
      builder.setTitle("版本升级").
            setIcon(R.mipmap.phone_icon). // 设置提示框的图标
            setMessage("发现新版本+\n"+message).// 设置要显示的信息
            setPositiveButton("确定", new DialogInterface.OnClickListener() {// 设置确定按钮
         @Override
         public void onClick(DialogInterface dialog, int which) {
            startUpload(downApkUrl);//下载最新的版本程序
         }
      }).setNegativeButton("取消", null);//设置取消按钮,null是什么都不做，并关闭对话框
      AlertDialog alertDialog = builder.create();
      // 显示对话框
      alertDialog.show();
   }
   private  void  startUpload(String downApkUrl)
   {
      AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
      builder.setTitle("文件下载");
      final LayoutInflater inflater = LayoutInflater.from(mContext);
      View v = inflater.inflate(R.layout.progress, null);
      mProgress = (ProgressBar) v.findViewById(R.id.progress);
      tvProgress = (TextView) v.findViewById(R.id.tv_progress);
      builder.setView(v);
      builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
         @Override
         public void onClick(DialogInterface dialog, int which) {
            dialog.dismiss();
            interceptFlag = true;
         }
      });
      downloadDialog = builder.create();
      downloadDialog.show();
      loadApkUrl = downApkUrl;
      DownApk();

   }
//这里我是用的子线程，这里大家根据自己需要
   public  void DownApk()
   {
      Thread thread=new Thread(new Runnable() {
         @Override
         public void run() {
            try {
               URL url = new URL(loadApkUrl);
               HttpURLConnection conn = (HttpURLConnection) url.openConnection();
               conn.connect();
               int length = conn.getContentLength();
               InputStream is = conn.getInputStream();
               File file = new File(savePath);
               if (!file.exists()) {
                  file.mkdir();
               }
               String apkFile = saveFileName;
               File ApkFile = new File(apkFile);
               FileOutputStream fos = new FileOutputStream(ApkFile);
               int count = 0;
               byte buf[] = new byte[1024];
               do {
                  int numread = is.read(buf);
                  count += numread;
                  progress = (int) (((float) count / length) * 100);
                  // 更新进度
                  mHandler.sendEmptyMessage(DOWN_UPDATE);
                  if (numread <= 0) {
                     // 下载完成通知安装
                     mHandler.sendEmptyMessage(DOWN_OVER);
                     break;
                  }
                  fos.write(buf, 0, numread);
               } while (!interceptFlag);// 点击取消就停止下载.

            } catch (MalformedURLException e) {
               e.printStackTrace();
            } catch (IOException e) {
               e.printStackTrace();
            }
         }
      });
      thread.start();

   }


}

4.progress.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
   android:orientation="vertical"
  android:layout_height="wrap_content">
  
  <ProgressBar
   android:id="@+id/progress"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   style="?android:attr/progressBarStyleHorizontal"
  />
   <TextView
      android:id="@+id/tv_progress"
      android:layout_width="match_parent"
      android:gravity="right"
      android:text="0%"
      android:layout_height="wrap_content" />
</LinearLayout>

/**
 * android7.0 安装Apk 必须要加临时权限
 * @param context
 * @param intent
 * @param type
 * @param file
 * @param writeAble 是读还是写，一般安装都是以读形式，默认为true
 */
public static void setIntentDataAndType(Context context,
                                        Intent intent,
                                        String type,
                                        File file,
                                        boolean writeAble) {
    if (Build.VERSION.SDK_INT >= 24) {
        intent.setDataAndType(getUriForFile(context, file), type);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        if (writeAble) {
            intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        }
    } else {
        intent.setDataAndType(Uri.fromFile(file), type);
    }

end：注意：8.0机型如发现无法安装，请在manifest添加

<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />