Add download path option

[gusye1234]

This pr involved slight UI modification to add a download path configure

[gusye1234]

• The main UI looks like below

• Users may text the download path themselves or use the browser button to pick one directory.
• A path validation will be conducted before downloading:

[gusye1234]

Gentle ping @DenBeke

BTW, I have never coded swift or used XCode before. There probably are many other ways to implement this feature and I may choose the worst one😂. Hope you don't feel disturbed when reviewing this.

[DenBeke]

Don't worry, I'm also not an experienced macOS programmer :)

I was thinking, wouldn't it make more sense to have a button (probably with just a cogs icon) that opens a preferences window where more settings could be grouped together in the future? That would also less clutter the main screen which I want to keep as simple as possible.
What do you think?

[DenBeke]

@gusye1234 I tried your PR and it seems that if I try to run it two consecutive times, the field is not reappearing again. Could you fix that? Thanks

[DenBeke]

My apologies for the delay in reviewing this, I have been quite busy.

[gldtn]

Don't worry, I'm also not an experienced macOS programmer :)

I was thinking, wouldn't it make more sense to have a button (probably with just a cogs icon) that opens a preferences window where more settings could be grouped together in the future? That would also less clutter the main screen which I want to keep as simple as possible. What do you think?

Just a quick question, where you guys would recommend someone to start learning swift?

[DenBeke]

Just a quick question, where you guys would recommend someone to start learning swift?

Long time ago I saw some live demos... So yeah, can't really help you with real resources, but Apple has quite a lot of information on their developer website: https://developer.apple.com/swift/resources/

Hope this helps...