打开PPT档案 [英] Opening PPT-Files

问题描述

我想打开一个PPT文件用我的应用程序。如何检查是否有可以显示这些文件安装在设备上，我怎么能启动它的应用程序？

I want to open a PPT-file with my app. How can I check if there is an app that can display these files installed on the device and how can I launch it?

推荐答案

尝试这样的事情。还没有尝试，但可能工作

Try something like this. Havent tried but might work

final Uri uri = Uri.fromFile(file); 
final Intent intent = new Intent(Intent.ACTION_VIEW); 
intent.setDataAndType(uri, "application/vnd.ms-powerpoint"); 

PackageManager pm = getPackageManager();
List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);
if(list.size() > 0)
   startActivity(context, intent);

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