Android打开文件从我的应用程序转换为合适的应用程序安装错误

Question

I have the following code to launch application chooser to open any type of file, but when ever I try to open the file I get the message file cannot be opened.

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(path));

if(type.contains("image")) {
    intent.setDataAndType(Uri.parse(path),type);
}else if(extension.equalsIgnoreCase("txt")){
    intent.setDataAndType(Uri.parse(path),"text/plain");
}else{
    intent.setDataAndType(Uri.parse(path),type);
}                       

intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
Intent intentOpen = Intent.createChooser(intent, "Open File");

try {
  activity.startActivity(intentOpen);
} catch (ActivityNotFoundException e) {                  
}

any help will be appreciated, thanks in advance

Answer 1

我解决了它，我必须在路径的开头添加file：//来打开文件。

path="file://"+Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOA‌​DS).getPath()+"/"+myFileName;