Is it possible for ACTION_VIEW with a MIME type of pdf to find no application which could handle it?-CodePudding

I'd like to use the following code for an application:

val browserIntent = Intent(Intent.ACTION_VIEW)
browserIntent.setDataAndType(Uri.parse(foo), MIME_PDF)

val chooser = Intent.createChooser(browserIntent, getString(R.string.view_using))
chooser.flags = Intent.FLAG_ACTIVITY_NEW_TASK

startActivity(chooser)

where

const val MIME_PDF = "application/pdf"

and the format would be something like:

https://example.net/name-of-feature/ThisIsThePdf.pdf

On my own device and on an emulator, this will open a nice view for viewing the pdf, seems like it loads a google pdf viewer and it doesn't even open a launcher for picking an application, which is completely fine, however, could it be possible that for certain devices, this request would fail ?

As far as I can tell, this intent is actually just attempting to open anything which could view a pdf and then gives it the data for the pdf, so this intent has no actual dependency on the google pdf viewer, instead it just relies on the user having a browser, or anything else which could process the pdf installed, right ?

In theory then, as long as a user has (at least) a browser installed, this intent will always work ?

CodePudding user response：

Never trust that the user will have an application which will be able to open the file you wanted to. You never know what applications user has installed on his/her device and etc. Always check :

try {
    startActivity(chooser)
} catch (e: ActivityNotFoundException) {
    // Define what your app should do if no activity can handle the intent.
}

Better to be prepared instead of crashing the app.