Android app检测版本并下载apk后实现覆盖安装

问题描述：

请问这个功能怎么做呢大家是用的官方的DownloadManager 吗为啥我这能下载就是不能提示安装哪位大神有好的方法确实挺急的在线等！

答

/**
* 安装apk
*/
public static void installApk(Context context,String fileName)
{
File file = new File(fileName);
chmod("777", file.getAbsolutePath());
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(Intent.ACTION_VIEW);
String type = "application/vnd.android.package-archive";
intent.setDataAndType(Uri.fromFile(file), type);
context.startActivity(intent);
}

 用DownloadManager下载并 注册广播及时监听下载完成状态 receiver = new DownloadCompleteReceiver();
            mContext.registerReceiver(receiver, new IntentFilter(
                    DownloadManager.ACTION_DOWNLOAD_COMPLETE));，在广播接收处里调用installApk方法,还可以定制相关提示信息

                                            class DownloadCompleteReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(
                DownloadManager.ACTION_DOWNLOAD_COMPLETE)) {
            mDownloadCustomViewDialog.dismiss();
            AppCookie.getInstance().putDownloadVersion(version);
            DialogUtil.showToastDialog(mContext, "下载成功...");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            AndroidSystemInfo.installApk(mContext, apkPath);
            if (receiver != null){
                mContext.unregisterReceiver(receiver);
                BaseActivity activity = (BaseActivity) mContext;
                activity.finish();
            }
        }
    }

}

答

intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

答

  DownloadManager.Request request = new DownloadManager.Request(
                        Uri.parse(url));
                request.setDestinationInExternalPublicDir("ChinaCloudproviders",
                        "ChinaCloudproviders.apk");
                request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE
                        | DownloadManager.Request.NETWORK_WIFI);
                request.setShowRunningNotification(false);
                request.setVisibleInDownloadsUi(false);
                request.setMimeType("application/vnd.android.package-archive");

三个路径：
public final static String PATH = Environment.getExternalStorageDirectory().getAbsolutePath()+"";//sd卡根目录路径
private String dirPath = AndroidSystemInfo.PATH + "/ChinaCloudproviders";
private String apkPath = AndroidSystemInfo.PATH + "/ChinaCloudproviders/ChinaCloudproviders.apk";

Android app检测版本并下载apk后实现覆盖安装

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