breautek commented on issue #628:
URL:
https://github.com/apache/cordova-plugin-file/issues/628#issuecomment-2589808474
> and the result of console.log of reader.onloadend is:
"File letto con successo: -ArrayBuffer (byteLenght: 15310703, resizable:
false, maxByteLenght: 15310703...
This looks like it worked as intended, it has an ArrayBuffer filled with
bytes. The array buffer alone isn't usable but you can wrap it around a `Blob`
(`new Blob([arrayBuffer])`) and then use `URL.createObjectURL(blob)`. HOWEVER
this is very inefficient and you'll need to use `URL.revokeObjectURL` after you
don't need it anymore, as it will force the video file to be retained in memory
which will be quite a serious memory leak considering how large videos are.
> Also tryed using the workaround u gave me with
WkWebView.convertFilePath(theFilePath); but i didnt understand how to use it.
Using WkWebView.convertFilePath(theFilePath); is definitely a better path.
The output of `convertFilePath` is a source string that can be used directly in
the DOM. `WkWebView.convertFilePath` is a iOS-specific API however, so instead
of using it directly, you should use the `FileEntry.toURL()` API, which allows
you to be platform independent.
Suppose you had a `<video id="myVideo" />` tag somewheres in your HTML, here
is an example:
```javascript
loadCachedVideo(v) {
if (!v) {
console.error("Il parametro 'v' รจ vuoto.");
return null;
}
const videoUrl = this.cacheDirectory + this.getFileName(v);
console.log('video url: ' + videoUrl);
window.resolveLocalFileSystemURL(videoUrl, (fileEntry) => {
const videoElement = document.getElementByID("myVideo");
videoElement.src = fileEntry.toURL();
videoElement.play();
});
});
```
Note that I'd recommend using file plugin 8.1.3 as it contains fixes
surrounding `.toURL()` usage on iOS. Earlier versions will not work if you're
also using schemes (e.g. app is hosted on `app://` or something other than
`file://`)
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