android --APK下载、安装、启动_android 安装并启动apk-优快云博客

本文介绍了在Android项目中实现APK自动更新、静默安装的详细步骤，包括检查版本、下载APK、安装APK以及安装后启动新版本应用的方法。

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今天项目中使用到APK更新，同时实现自动安装（静默安装），安装完成后，启动最新安装的APK。

版本判断

请求服务器，判断版本，下载apk

下载APK

http.download(ApkUrl, "/sdcard/Download/" + fileName, true,
               new RequestCallBack<File>() {
                   @Override
                   public void onStart() {
                       LogUtils.d("conn...");
                   }

                   @Override
                   public void onLoading(long total, long current,
                           boolean isUploading) {
                       LogUtils.d("reply: " + current + "/" + total);

                   }

                   @Override
                   public void onFailure(HttpException error, String msg) {
                       mHandle.postDelayed(new splashhandler(), 300);
                       LogUtils.e(error.getExceptionCode() + ":" + msg);
                       error.printStackTrace();
                   }

                   @Override
                   public void onSuccess(ResponseInfo<File> arg0) {
                       LogUtils.d("LoadingActivity: down apk success");
                       // 安装apk
                       Intent installAPKIntent = DownloadAPKUtils.installAPK(
                               context, fileName);
                       startActivityForResult(installAPKIntent, 9001);
                   }
               });
   }

安装APK

Intent intent = new Intent(Intent.ACTION_VIEW);
       File file = new File("/sdcard/Download/", fileName);
       intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
       intent.setDataAndType(Uri.fromFile(file),
               "application/vnd.android.package-archive");

启动APK

public static Intent openUpdateAPK(Context context, String packageName) {
       if (null == packageName)
           return null;
       PackageManager pm = context.getPackageManager();
       Intent mainTntent = new Intent(Intent.ACTION_MAIN, null);
       mainTntent.addCategory(Intent.CATEGORY_LAUNCHER);

       List<ResolveInfo> reesolveInfos = pm.queryIntentActivities(mainTntent,
               PackageManager.GET_INTENT_FILTERS);
       Collections.sort(reesolveInfos, new ResolveInfo.DisplayNameComparator(
               pm));
       for (ResolveInfo reInfo : reesolveInfos) {
           String activityName = reInfo.activityInfo.name;
           String pkgName = reInfo.activityInfo.packageName;
           String appLabel = (String) reInfo.loadLabel(pm);
           Intent launchIntent = new Intent();
           launchIntent.setComponent(new ComponentName(pkgName, activityName));
           return launchIntent;
       }
       return null;
   }