iOS11 以下AirPlay彈出框"取消"按鈕點擊事件獲取

先說下如何在App內(nèi)部觸發(fā)AirPlay

首先我們要拿到系統(tǒng)的按鈕

 MPVolumeView *volumeView = [[MPVolumeView alloc] initWithFrame:CGRectMake(260, 407, 40, 40)];

    [volumeView setShowsVolumeSlider:NO];

    for (UIButton *button in volumeView.subviews) {

        if ([button isKindOfClass:[UIButton class]]) {

            self.airplayButton = button;

            self.airplayButton.showsTouchWhenHighlighted = NO;

            [self.airplayButton setImage:[UIImageimageNamed:@"fav_audios_airplay.png"] forState:UIControlStateNormal];

            [self.airplayButton setBounds:CGRectMake(0, 0, 40, 40)];

            [self.airplayButton addObserver:self forKeyPath:@"alpha"options:NSKeyValueObservingOptionNew context:nil];

        }

    }

    [volumeView sizeToFit];

    [self.view addSubview:volumeView];

還需要添加這一段來設(shè)置多一次圖片和大小

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {

    if ([object isKindOfClass:[UIButton class]] && [[change valueForKey:NSKeyValueChangeNewKey] intValue] == 1) {

        [(UIButton *) object setImage:[UIImageimageNamed:@"fav_audios_airplay.png"] forState:UIControlStateNormal];

        [(UIButton *) object setBounds:CGRectMake(0, 0, 40, 40)];

    }

}

在dealloc里面移除

- (void)dealloc {

    [self.airplayButton removeObserver:self forKeyPath:@"alpha"];

}

通過以上代碼,就能過獲取到系統(tǒng)的按鈕,并可以自定義一些樣式.當(dāng)然你也可以完全自定義一個另外的按鈕.這個系統(tǒng)的按鈕通過for循環(huán)找到后,僅僅持有下便可.
當(dāng)自定按鈕點擊時,只要將持有的系統(tǒng)按鈕響應(yīng)下事件便可.效果是一樣的.代碼如下:

[self.airplayButton sendActionsForControlEvents:UIControlEventTouchUpInside];

此時iOS11以下的iPhone變會彈出設(shè)備選擇框了,如下

40AA06A93D8F333454AE1A123D7254BA.jpg

正常情況下,流程走到這里就完了.但是,萬惡的產(chǎn)品汪給了一個變態(tài)的需求,我需要拿到用戶點出這個彈框后沒有選擇投屏設(shè)備而是點擊取消按鈕收回彈框的事件......

呵呵呵呵呵呵呵額!!!

通過一頓視圖調(diào)試后發(fā)現(xiàn):

F961F34A-9B17-4DD0-B665-A00337484171.png

這層彈框,其實就是個window,所以我們要拿到這個window

- (BOOL)isPresentAirPlayChooseWindow:(BOOL)isAddTarget {
    NSArray *windows = [UIApplication sharedApplication].windows;
    for(UIWindow *w in windows) {
        if([w isKindOfClass:NSClassFromString(@"_MPAVRoutingSheetSecureWindow")]) {
            return YES;
        }
    }
    return NO;
}

A9D75548-E428-4587-AC19-A937B6F835A0.png

上圖中的3個按鈕點擊后都會觸發(fā)彈框消失的時間,他們分別對應(yīng)下圖中的3個區(qū)域:

F5FDEF57-1805-4B33-BB28-2D1EB305B55C.png

所以我們找出window之后再拿到這三個按鈕,綁定下事件就ok了

- (BOOL)isPresentAirPlayChooseWindow:(BOOL)isAddTarget {
    NSArray *windows = [UIApplication sharedApplication].windows;
    for(UIWindow *w in windows) {
        if([w isKindOfClass:NSClassFromString(@"_MPAVRoutingSheetSecureWindow")]) {
            if(isAddTarget) {
                ///<找到系統(tǒng)的 "取消按鈕" 并捕捉事件
                UIView *view = w.subviews.firstObject;
                if([UIDevice currentDevice].systemVersion.floatValue < 11) {
                    [self addTargetForView_iOS10:view];
                }else {
                    [self addTargetForView_iOS11:view];
                }
            }
            return YES;
        }
    }
    return NO;
}

- (void)addTargetForView_iOS10:(UIView *)view {
    for(UIView *v in view.subviews) {
        if([v isKindOfClass:[UIButton class]]) {
//找到第一個button
            [((UIButton *)v) addTarget:self action:@selector(airplayChooseViewDismiss:) forControlEvents:UIControlEventTouchUpInside];
        }else if(v.subviews.count > 1 && ![v isKindOfClass:[UIButton class]]) {
            for(UIView *sv in v.subviews) {
                if([sv isKindOfClass:[UIButton class]]) {
//2,3號button
                    [((UIButton *)sv) addTarget:self action:@selector(airplayChooseViewDismiss:) forControlEvents:UIControlEventTouchUpInside];
                }
            }
        }
    }
}

好了,大功告成.....

至于iOS11以上,系統(tǒng)層級變了.一番探索后發(fā)現(xiàn)和iOS11以下有截然區(qū)別.不是單單添加一層window那么簡單,不是單單添加在單個app層面上的,貌似是和我們上拉下拉彈出的通知欄一個級別的.所以,沒有所以...媽個雞...

- (void)addTargetForView_iOS11:(UIView *)view {
    /*
     哦豁...
     */
}

最后編輯于：2017.12.13 17:30:43

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