编程方式Phonegap Android应用触发器更新 [英] Phonegap Android app trigger update programmatically

问题描述

我正在建立一个由Google Play以外的伺服器代管的Android应用程式。我需要应用程序检查新版本，并提示用户更新应用程序启动时。

I am building an Android app that is hosted on a server outside Google Play. I need the app to check for new version and prompt user to update when the app starts.

我建立了一个机制来检查新版本（应用程序检查文件在服务器和比较版本），这是工作很好。然后我提示用户更新，但如果用户选择继续更新，我无法触发下载和安装apk。

I built a mechanism to check for new version (the app checks for a file on server and compares version) which is working well. Then I prompt user to update, but if user chooses to proceed with the update, I'm not able to trigger the download and installation of the apk.

我试过简单地打开apk网址：

I tried simply opening the apk url:

window.open(apkURL);

其中apkURL是到服务器上承载的.apk文件的完整http链接。

where the apkURL is the full http link to the .apk file hosted on server.

但它似乎没有做任何事情。

But it doesn't seem to do anything.

我一直在研究，但我没有找到答案如何做到这一点。我使用原生代码找到了一些建议，例如在Android上以编程方式安装应用，但我不知道如何做到这一点从我的Phonegap应用程序。

I've been researching but I don't find an answer on how to do this. I found some suggestions using native code, like this post Install Application programmatically on Android but I don't know how to do that from within my Phonegap app.

Intent promptInstall = new Intent(Intent.ACTION_VIEW)
.setData(Uri.parse("file:///path/to/your.apk"))
.setType("application/vnd.android.package-archive");
startActivity(promptInstall); 

这是触发更新的正确方法吗？如何从这样的东西可以在Phonegap应用程序内完成？

Is this the right way to trigger the update? How can something like this be done from within a Phonegap app?

谢谢！

推荐答案

文件 api和 WebIntent 插件。我将在这里发布解决方案，以防它帮助任何人。

I finally managed to implement this, using the File api and the WebIntent plugin. I will post the solution here in case it helps anyone.

代码将apk从远程服务器下载到sdcard中的下载文件夹，然后触发安装。 / p>

The code downloads the apk from a remote server to the download folder in the sdcard and then triggers the install.

window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function(fileSystem){
fileSystem.root.getFile('download/filename.apk', {
    create: true, 
    exclusive: false
  }, function(fileEntry) {
    var localPath = fileEntry.fullPath,
    fileTransfer = new FileTransfer();        
    fileTransfer.download(apkURL, localPath, function(entry) {
        window.plugins.webintent.startActivity({
            action: window.plugins.webintent.ACTION_VIEW,
            url: 'file://' + entry.fullPath,
            type: 'application/vnd.android.package-archive'
            },
            function(){},
            function(e){
                alert('Error launching app update');
            }
        );                              

    }, function (error) {
        alert("Error downloading APK: " + error.code);
  });
  }, function(evt){
      alert("Error downloading apk: " + evt.target.error.code);                                               
  });
}, function(evt){
alert("Error preparing to download apk: " + evt.target.error.code);
});

这篇关于编程方式Phonegap Android应用触发器更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！