iOS - get programmatically queue of items currently playing

一世执手 提交于 2019-12-05 01:40:05

I'm afraid this is not possible. Apple does not give us access to this information from any libraries.

bugloaf

I'm pretty sure this is not possible through any public API. The Ecoute app that @sooper mentions must be using private APIs. I did a little experiment in the codebase of my own music app. First I used this code to list all the methods in the iPod music player (put #import <objc/runtime.h> at the top):

int i=0;
unsigned int mc = 0;
Method * mlist = class_copyMethodList([MPMusicPlayerController iPodMusicPlayer].class, &mc);
NSLog(@"%d methods for class", mc);
for(i=0;i<mc;i++) {
    NSLog(@"\tMethod no #%d: %s", i, sel_getName(method_getName(mlist[i])));
}
free(mlist);

This turned up some intriguing method names like numberOfItems and nowPlayingItemAtIndex:. So I added this category at the top of the file:

@interface MPMusicPlayerController (Private)

- (NSInteger)numberOfItems;
- (MPMediaItem*)nowPlayingItemAtIndex:(NSInteger)index;

@end

and I ran this code:

NSInteger numberOfItems = [[MPMusicPlayerController iPodMusicPlayer] numberOfItems];
for (NSInteger i = 0; i < numberOfItems; i++) {
    MPMediaItem* mi = [[MPMusicPlayerController iPodMusicPlayer] nowPlayingItemAtIndex:i];
    NSLog(@"%@", [mi valueForProperty:MPMediaItemPropertyTitle]);
}

and sure enough, it printed out the playlist that I had queued up in the Music app!

Of course, if you call these methods this way, Apple will reject your app, but there's a way to hide private API calls from Apple.

if you can to use Apple private api. this should be best.

let player = MPMusicPlayerController.systemMusicPlayer
let items = (player.value(forKey: "queueAsQuery") as! MPMediaQuery).items
//[MPMediaItem]?
Ben Seawalker

I've been looking into this and suddenly realized how simple it is!

- (void)mediaPicker:(MPMediaPickerController *)mediaPicker didPickMediaItems:(MPMediaItemCollection *)mediaItemCollection

mediaItemCollection is the current playlist!

hope this helps.

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