大哥赢底,那句話意識(shí)是1個(gè)APP至少2個(gè)人審核专筷。蘋果的意思是審核嚴(yán)謹(jǐn)尤勋,任務(wù)重浴栽。
揭秘蘋果App Store審核團(tuán)隊(duì)肚吏,知己知彼好過(guò)審蘋果說(shuō)到審核團(tuán)隊(duì),很多人就冒火荤崇,他們拒絕應(yīng)用的理由花式上百拌屏,讓人抓狂卻無(wú)可奈何!他們神秘低調(diào),除了申訴渠道术荤,不和外界做任何的溝通倚喂。 他們是群什么樣的人呢?又是如何評(píng)判App的...
而調(diào)用[obj autoreplease]或者@autoreleasepool{}都會(huì)發(fā)生push操作,前者將obj壓棧喜每,后者將POOL_SENTINEL標(biāo)記壓棧务唐。
各個(gè)線程 Autorelease 對(duì)象的內(nèi)存管理最近和 bestswifter 雳攘、kuailejim 搞了一套模擬面試带兜,然后不管是應(yīng)屆生還是工作兩三年的高級(jí)工程師都對(duì)下面這幾個(gè)問(wèn)題比較懵逼枫笛,可能是開發(fā)中用到的不多,在這里淺...
對(duì)第三個(gè)問(wèn)題刚照,我覺(jué)得說(shuō)的不是很清楚刑巧。而且很多博客對(duì)線程和autoreleasepool的關(guān)系都描述成"一個(gè)線程對(duì)應(yīng)一個(gè)autoreleasepool"也不恰當(dāng),對(duì)autoreleasepool和AutoreleasepoolPage關(guān)系描述也不恰當(dāng)无畔。
實(shí)際一個(gè)線程對(duì)應(yīng)一個(gè)autoreleasepool堆棧啊楚,而這個(gè)堆棧則是通過(guò)AutoreleasepoolPage的雙向鏈表(數(shù)據(jù)結(jié)構(gòu))進(jìn)行實(shí)現(xiàn)的。所以對(duì)于第三個(gè)問(wèn)題“子線程對(duì)Autorelease對(duì)象如何處理”浑彰,子線程中在第一次push的時(shí)候創(chuàng)建AutoreleasepoolPage雙鏈表恭理,也就是autoreleasepool堆棧,然后所有的autoreleasepool后者說(shuō)Autorelease對(duì)象都被壓入到棧里郭变,只是每個(gè)autoreleasepool之間都有一個(gè)POOL_SENTINEL標(biāo)記界限(棧層次)颜价。而調(diào)用[obj autoreplease]或者@autoreleasepool{}都會(huì)發(fā)生push操作。
各個(gè)線程 Autorelease 對(duì)象的內(nèi)存管理最近和 bestswifter 诉濒、kuailejim 搞了一套模擬面試周伦,然后不管是應(yīng)屆生還是工作兩三年的高級(jí)工程師都對(duì)下面這幾個(gè)問(wèn)題比較懵逼,可能是開發(fā)中用到的不多未荒,在這里淺...
```
__weak id ref = nil;
@Implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSString *str;
@autoreleasepool {
{
NSString *str = [[NSString alloc] initWithFormat:@"aaa"];
ref = str;
}
NSLog(@"-.ref = %@(%p)", ref, ref);
NSString *str = [@[@"1", @"2", @"3", @"4"] componentsJoinedByString:@"|"];
// ref = str;
NSLog(@"0.ref = %@(%p)", ref, ref);
}
NSLog(@"1.ref = %@(%p)", ref, ref);
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
NSLog(@"2.ref = %@(%p)", ref, ref);
}
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
NSLog(@"3.ref = %@(%p)", ref, ref);
}
@EnD
```
這面這段代碼的輸出結(jié)果:
```
2017-09-29 14:37:19.073666+0800 SJAdditionsTest[1820:1188820] -.ref = aaa(0xa000000006161613)
2017-09-29 14:37:19.073804+0800 SJAdditionsTest[1820:1188820] 0.ref = aaa(0xa000000006161613)
2017-09-29 14:37:19.073898+0800 SJAdditionsTest[1820:1188820] 1.ref = aaa(0xa000000006161613)
2017-09-29 14:37:19.074108+0800 SJAdditionsTest[1820:1188820] 2.ref = aaa(0xa000000006161613)
2017-09-29 14:37:19.085965+0800 SJAdditionsTest[1820:1188820] 3.ref = aaa(0xa000000006161613)
```
和預(yù)期的完全不一樣专挪,大神能解釋下嗎?
各個(gè)線程 Autorelease 對(duì)象的內(nèi)存管理最近和 bestswifter 片排、kuailejim 搞了一套模擬面試寨腔,然后不管是應(yīng)屆生還是工作兩三年的高級(jí)工程師都對(duì)下面這幾個(gè)問(wèn)題比較懵逼,可能是開發(fā)中用到的不多率寡,在這里淺...