Android 检查更新、下载、安装功能的实现

android检查更新、下载、安装

前言：

由于友盟更新即将下线，我们就修改了更新逻辑，自己检查更新、下载、安装，但是检查更新还是要依赖于友盟中的在线参数：

1.mainactivity.java:

public class mainactivity extends baseactivity{
 @override
 public void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  checkupdateutil.checkupdate(this);//检查更新
 }
}

2.checkupdateutil.java:

package com.monkey.monkeymushroom.util;

import android.app.alertdialog;
import android.app.notificationmanager;
import android.content.context;
import android.content.intent;
import android.net.uri;
import android.os.environment;
import android.support.v4.app.notificationcompat;
import android.text.textutils;
import android.view.gravity;
import android.view.view;
import android.view.window;
import android.view.windowmanager;
import android.widget.button;
import android.widget.textview;
import android.widget.toast;

import com.lidroid.xutils.httputils;
import com.lidroid.xutils.exception.httpexception;
import com.lidroid.xutils.http.responseinfo;
import com.lidroid.xutils.http.callback.requestcallback;
import com.umeng.analytics.mobclickagent;

import java.io.file;
import java.text.parseexception;
import java.text.simpledateformat;
import java.util.date;

/**
 * 检查更新工具类
 */
public class checkupdateutil {
 private static notificationcompat.builder builder;
 private static notificationmanager manager;
 private static final int update_id = "0";

 /**
  * 检查更新
  *
  * @param context
  * @return
  */
 public static boolean checkupdate(context context) {
  // 获取友盟在线参数（要更新的版本号）
  string force_version = mobclickagent.getconfigparams(context, "version");
  if (stringutils.isempty(version)) {
   version = "1.0";
  }
  // 版本号转换为数组
  string[] mupdateversionarray = version.split(",");
  string curr_version_name = sysinfoutils.getversionname(context);

  for (int i = 0; i < mupdateversionarray .length; i++) {//循环获取在线参数上设置的版本号
   if (curr_version_name.equals(mupdateversionarray [i])) {//如果有，代表要更新
    if ((mupdateversionarray .length > i + 1) && ("y".equals(mupdateversionarray [i + 1]))) {//判断是否强更
     showupdatedialog(true, context);
    } else {//不强更
     showupdatedialog(false, context);
    }
    return true;// 只要找到对应的版本号，即有更新，结束循环
   }
  }
  return false;//无更新
 }

 /**
  * 显示更新对话框
  *
  * @param isforceupdate 是否强制更新
  */
 public static void showupdatedialog(final boolean isforceupdate, final context context) {
  // 获取更新日志
  string update_log = mobclickagent.getconfigparams(context, "update_log");
  // 最新版本
  string new_version = mobclickagent.getconfigparams(context, "new_version");
  // 获取下载地址
  final string download_path = mobclickagent.getconfigparams(context, "new_version_path");
  if (textutils.isempty(update_log) || textutils.isempty(download_path) || textutils.isempty(new_version)) {
   return;
  }
  logmessage.e("monkey", "更新日志--> " + update_log + " 最新版本--> " + new_version + " 下载地址--> " + download_path);
  //弹框提示
  final alertdialog malertdialog = new alertdialog.builder(context).create();
  malertdialog.show();
  malertdialog.setcancelable(false);
  window window = malertdialog.getwindow();
  window.setgravity(gravity.bottom);
  window.setlayout(windowmanager.layoutparams.match_parent, windowmanager.layoutparams.match_parent);
  view view = view.inflate(context, r.layout.dialog_update, null);
  window.setcontentview(view);

  textview log_head = (textview) view.findviewbyid(r.id.log_head);
  textview msg_tv = (textview) view.findviewbyid(r.id.msg_tv);
  log_head.settext("v" + new_version + "更新日志：");
  msg_tv.settext(update_log);
  button update = (button) view.findviewbyid(r.id.yes_btn);
  button notnow = (button) view.findviewbyid(r.id.no_btn);
  update.setonclicklistener(new view.onclicklistener() {

   @override
   public void onclick(view v) {
    download(context, download_path);
    malertdialog.dismiss();
   }
  });
  notnow.setonclicklistener(new view.onclicklistener() {

   @override
   public void onclick(view v) {
    malertdialog.dismiss();
   }
  });
  if (isforceupdate) {//如果是强制更新，则不显示“以后再说”按钮
   notnow.setvisibility(view.gone);
  }
 }

 /**
  * 下载apk
  */
 private static void download(final context context, string download_path) {
  if (environment.getexternalstoragestate().equals(environment.media_mounted)) {
   string apkname = download_path.substring(download_path.lastindexof("/") + 1);
   string target = environment.getexternalstoragedirectory().getabsolutepath() + "/" + apkname;
   logmessage.e("monkey", "apk target -->" + target);
   if (netutils.isnetconnect(context)) {
    httputils httputils = new httputils(1000 * 10);//为了方便使用了xutils
    httputils.download(download_path, target, false, true, new requestcallback<file>() {
     @override
     public void onstart() {
      super.onstart();
      toastutil.show(context, "正在下载……");
      //创建通知栏下载提示
      builder = new notificationcompat.builder(context);
      builder.setsmallicon(r.drawable.ic_launcher)
        .setongoing(true)
        .setcontenttitle("猴菇先生");
      manager = (notificationmanager) context.getsystemservice(context.notification_service);
     }

     @override
     public void onloading(long total, long current, boolean isuploading) {
      super.onloading(total, current, isuploading);
      logmessage.e("monkey", "--> total " + total + " current " + current);
      int cur = (int) (current * 100 / total);
      logmessage.e("monkey", "cur--> " + cur + "%");
      builder.setprogress(100, cur, false)//更新进度
        .setcontenttext(cur + "%");
      manager.notify(update_id, builder.build());
     }

     @override
     public void onsuccess(responseinfo<file> responseinfo) {
      manager.cancel(update_id);//取消通知栏下载提示
      //下载成功后自动安装apk并打开
      file file = responseinfo.result;
      intent intent = new intent(intent.action_view);
      intent.setflags(intent.flag_activity_new_task);
      intent.setdataandtype(uri.fromfile(file), "application/vnd.android.package-archive");
      context.startactivity(intent);
     }

     @override
     public void onfailure(httpexception e, string s) {
      toastutil.show(context, "当前网络不可用，请检查网络设置");
     }
    });
   } else {
    toastutil.show(context, "当前网络不可用，请检查网络设置");
   }
  } else {
   toastutil.show(context, "sd卡没有插好");
  }
 }
}

3.更新弹框布局文件dialog_update.xml:

<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <relativelayout
  android:layout_width="310dp"
  android:layout_height="wrap_content"
  android:layout_centerinparent="true"
  android:background="@color/base_white"
  android:paddingbottom="20dp">

  <textview
   android:id="@+id/title"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_centerhorizontal="true"
   android:layout_marginbottom="20dp"
   android:layout_margintop="20dp"
   android:text="发现新版本"
   android:textsize="20sp" />

  <view
   android:id="@+id/line"
   android:layout_width="match_parent"
   android:layout_height="1dp"
   android:layout_below="@+id/title"
   android:background="#4a7acd" />

  <textview
   android:id="@+id/log_head"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_below="@+id/line"
   android:layout_marginleft="20dp"
   android:layout_margintop="20dp" />

  <textview
   android:id="@+id/msg_tv"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_below="@+id/log_head"
   android:layout_centerhorizontal="true"
   android:layout_marginleft="32dp"
   android:layout_marginright="32dp"
   android:text="更新日志"
   android:textsize="16sp" />

  <linearlayout
   android:layout_width="match_parent"
   android:layout_height="35dp"
   android:layout_below="@+id/msg_tv"
   android:layout_margintop="30dp"
   android:orientation="horizontal">

   <button
    android:id="@+id/yes_btn"
    android:layout_width="0dp"
    android:layout_height="35dp"
    android:layout_marginleft="20dp"
    android:layout_marginright="20dp"
    android:layout_weight="1"
    android:background="#4a7acd"
    android:gravity="center"
    android:text="立即更新"
    android:textcolor="@color/base_white"
    android:textsize="16sp" />

   <button
    android:id="@+id/no_btn"
    android:layout_width="0dp"
    android:layout_height="35dp"
    android:layout_marginright="20dp"
    android:layout_weight="1"
    android:background="#4a7acd"
    android:gravity="center"
    android:text="以后再说"
    android:textcolor="@color/base_white"
    android:textsize="16sp" />
  </linearlayout>
 </relativelayout>
</relativelayout>

更新弹框：

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