版本記錄

前言

在app中，很多時(shí)候都需要熟悉一些小技巧讓您事半功倍，提高工作效率，這些小技巧都很小很細(xì)。感興趣的可以看看我寫的其他小技巧。
1. 實(shí)用小技巧（一）：UIScrollView中上下左右滾動(dòng)方向的判斷
2. 實(shí)用小技巧（二）：屏幕橫豎屏的判斷和相關(guān)邏輯
3.實(shí)用小技巧（三）：點(diǎn)擊手勢(shì)屏蔽子視圖的響應(yīng)
4.實(shí)用小技巧（四）：動(dòng)態(tài)的增刪標(biāo)簽視圖
5.實(shí)用小技巧（五）：通過相冊(cè)或者相機(jī)更改圖標(biāo)
6.實(shí)用小技巧（六）：打印ios里所有字體
7. 實(shí)用小技巧（七）：UITableViewCell自適應(yīng)行高的計(jì)算
8. 實(shí)用小技巧（八）：數(shù)字余額顯示的分隔
9.實(shí)用小技巧（九）：類頭條模糊背景的實(shí)現(xiàn)
10.實(shí)用小技巧（十）：晃動(dòng)手機(jī)換后臺(tái)服務(wù)器網(wǎng)絡(luò)
11.實(shí)用小技巧（十一）：scrollView及其子類顯示的一些異常處理
12.實(shí)用小技巧（十二）：頭像圖片縮放以及保存到相冊(cè)簡(jiǎn)單功能的實(shí)現(xiàn)
13.實(shí)用小技巧（十三）：一種類酷我音樂盒動(dòng)畫實(shí)現(xiàn)
14.實(shí)用小技巧（十四）：生成跳往applestore指定app的方法
15.實(shí)用小技巧（十五）：左側(cè)向右滑動(dòng)返回上一級(jí)控制器
16.實(shí)用小技巧（十六）：獲取設(shè)備信息
17.實(shí)用小技巧（十七）：清除緩存目錄
18.實(shí)用小技巧（十八）：取出gif圖的每一幀
19.實(shí)用小技巧（十九）：獲取相機(jī)和麥克風(fēng)權(quán)限
20.實(shí)用小技巧（二十）：游客模式的實(shí)現(xiàn)
21.實(shí)用小技巧（二十一）：版本檢測(cè)的實(shí)現(xiàn)
22.實(shí)用小技巧（二十二）：鍵盤遮擋問題
23. 實(shí)用小技巧（二十三）：獲取閃光燈的控制
24. 實(shí)用小技巧（二十四）：APP頁面開啟跳轉(zhuǎn)邏輯處理
25. 實(shí)用小技巧（二十五）—— 關(guān)于UILabel控件寬高的計(jì)算

權(quán)限監(jiān)測(cè)請(qǐng)求工具的封裝

下面我們封裝一下權(quán)限監(jiān)測(cè)和請(qǐng)求工具，直接看代碼吧。

1. JJAuthorityManager.h

#import <Foundation/Foundation.h>

typedef NS_ENUM(NSUInteger, JJAuthorizationType) {
    JJAuthorizationTypeNotDetermined,       //未決定
    JJAuthorizationTypeDenied,              //拒絕
    JJAuthorizationTypeAllow                //允許
};

/**
     權(quán)限獲取及請(qǐng)求
 */

@interface JJAuthorityManager : NSObject

/**
 檢查權(quán)限
 */

//檢查網(wǎng)絡(luò)權(quán)限
+ (JJAuthorizationType)jj_checkNetworkAuthorization;

//檢查相機(jī)權(quán)限
+ (JJAuthorizationType)jj_checkCameraAuthorization;

//檢查相冊(cè)權(quán)限
+ (JJAuthorizationType)jj_checkAlbumAuthorization;

//檢查麥克風(fēng)權(quán)限
+ (JJAuthorizationType)jj_checkMicrophoneAuthorization;

//檢查定位權(quán)限
+ (JJAuthorizationType)jj_checkLocationAuthorization;

//檢查通知權(quán)限
+ (void)jj_checkNotificationAuthorized:(void (^)(BOOL authorized))completion;


/**
 請(qǐng)求權(quán)限
 */

//打開設(shè)置授權(quán)視圖
+ (void)jj_openAuthorizationView;

//獲取相機(jī)權(quán)限
+ (void)jj_getCameraAuthorization:(void (^)(BOOL granted))completion;

//獲取相冊(cè)權(quán)限
+ (void)jj_getAlbumAuthorization:(void (^)(BOOL authorized))completion;

//獲取麥克風(fēng)權(quán)限
+ (void)jj_getMicrophoneAuthorization:(void (^)(BOOL granted))completion;

//獲取通知權(quán)限
+ (void)jj_getNotificationAuthorization;

@end

2. JJAuthorityManager.m

#import "JJAuthorityManager.h"
#import <AssetsLibrary/AssetsLibrary.h>
#import <AVFoundation/AVFoundation.h>
#import <CoreLocation/CoreLocation.h>
#import <CoreTelephony/CTCellularData.h>
#import <Photos/Photos.h>
#import <UserNotifications/UserNotifications.h>


@implementation JJAuthorityManager

//檢查網(wǎng)絡(luò)權(quán)限

+ (JJAuthorizationType)jj_checkNetworkAuthorization
{
    CTCellularData *cellularData = [[CTCellularData alloc] init];
    CTCellularDataRestrictedState state = cellularData.restrictedState;
    if (state == kCTCellularDataRestricted) {
        return JJAuthorizationTypeDenied;
    }
    else if (state == kCTCellularDataNotRestricted) {
        return JJAuthorizationTypeAllow;
    }
    else if (state == kCTCellularDataRestrictedStateUnknown) {
        return JJAuthorizationTypeNotDetermined;
    }
    return JJAuthorizationTypeAllow;
}

//檢查相機(jī)權(quán)限

+ (JJAuthorizationType)jj_checkCameraAuthorization
{
    AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    if(authStatus == ALAuthorizationStatusRestricted || authStatus == ALAuthorizationStatusDenied){
        return JJAuthorizationTypeDenied;
    }
    else if (authStatus == ALAuthorizationStatusNotDetermined) {
        return JJAuthorizationTypeNotDetermined;
    }
    return JJAuthorizationTypeAllow;
}

//檢查相冊(cè)權(quán)限

+ (JJAuthorizationType)jj_checkAlbumAuthorization
{
    PHAuthorizationStatus authStatus = [PHPhotoLibrary authorizationStatus];
    if (authStatus == PHAuthorizationStatusAuthorized) {
        return JJAuthorizationTypeAllow;
    }
    else if (authStatus == PHAuthorizationStatusDenied) {
        return JJAuthorizationTypeDenied;
    }
    else if (authStatus == PHAuthorizationStatusNotDetermined) {
        return JJAuthorizationTypeNotDetermined;
    }
    else if (authStatus == PHAuthorizationStatusRestricted) {
        return JJAuthorizationTypeDenied;
    }
    return JJAuthorizationTypeAllow;
}

//檢查麥克風(fēng)權(quán)限

+ (JJAuthorizationType)jj_checkMicrophoneAuthorization
{
    AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];//麥克風(fēng)權(quán)限
    if (authStatus == AVAuthorizationStatusAuthorized) {
        return JJAuthorizationTypeAllow;
    }
    else if (authStatus == AVAuthorizationStatusDenied) {
        return JJAuthorizationTypeDenied;
    }
    else if (authStatus == AVAuthorizationStatusNotDetermined) {
        return JJAuthorizationTypeNotDetermined;
    }
    else if (authStatus == AVAuthorizationStatusRestricted) {
        return JJAuthorizationTypeDenied;
    }
    return JJAuthorizationTypeAllow;
}

//檢查定位權(quán)限

+ (JJAuthorizationType)jj_checkLocationAuthorization
{
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    if (kCLAuthorizationStatusDenied == status || kCLAuthorizationStatusRestricted == status) {
        return JJAuthorizationTypeDenied;
    } else if (kCLAuthorizationStatusNotDetermined == status) {
        return JJAuthorizationTypeNotDetermined;
    }
    return JJAuthorizationTypeAllow;
}

//檢查通知權(quán)限

+ (void)jj_checkNotificationAuthorized:(void (^)(BOOL authorized))completion
{
    if (!completion) {
        return;
    }
    
    if ([UIDevice currentDevice].systemVersion.floatValue >= 10.0) {
        [[UNUserNotificationCenter currentNotificationCenter]
         getNotificationSettingsWithCompletionHandler:
         ^(UNNotificationSettings * _Nonnull settings) {
             completion(settings.authorizationStatus == UNAuthorizationStatusAuthorized);
         }];
    }
    else {
        completion([UIApplication sharedApplication].currentUserNotificationSettings.types != UIUserNotificationTypeNone);
    }
}

//打開設(shè)置授權(quán)視圖

+ (void)jj_openAuthorizationView
{
    NSURL *settingURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
    if ([[UIApplication sharedApplication] canOpenURL:settingURL]) {
        [[UIApplication sharedApplication] openURL:settingURL];
    }
}

//獲取相機(jī)權(quán)限

+ (void)jj_getCameraAuthorization:(void (^)(BOOL granted))completion
{
    [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
        if (granted){
            NSLog(@"用戶同意授權(quán)相機(jī)");
        }
        else {
            NSLog(@"用戶拒絕授權(quán)相機(jī)");
        }
        if (completion) {
            completion(granted);
        }
    }];
}

//獲取相冊(cè)權(quán)限

+ (void)jj_getAlbumAuthorization:(void (^)(BOOL authorized))completion {
    [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
        if (status == PHAuthorizationStatusAuthorized) {
            NSLog(@"用戶同意授權(quán)相冊(cè)");
        }
        else {
            NSLog(@"用戶拒絕授權(quán)相冊(cè)");
        }
        if (completion) {
            completion(status == PHAuthorizationStatusAuthorized);
        }
    }];
}

// 獲取麥克風(fēng)權(quán)限

+ (void)jj_getMicrophoneAuthorization:(void (^)(BOOL granted))completion
{
    [[AVAudioSession sharedInstance] requestRecordPermission:^(BOOL granted) {
        if (granted) {
            NSLog(@"用戶同意授權(quán)麥克風(fēng)");
        }
        else{
            NSLog(@"用戶拒絕授權(quán)麥克風(fēng)");
        }
        if (completion) {
            completion(granted);
        }
    }];
}

//獲取通知權(quán)限

+ (void)jj_getNotificationAuthorization
{
    if ([UIDevice currentDevice].systemVersion.floatValue >= 10.0) {
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
            if (!error) {
                NSLog(@"request authorization succeeded!");
            }
        }];
        [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
            NSLog(@"%@",settings);
        }];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
    }
    else if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0) {
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
    }
}

@end

工具的使用

下面我們就看一下該工具的使用情況，看一下測(cè)試代碼。

1. ViewController.m

#import "ViewController.h"
#import "JJAuthorityManager.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor yellowColor];
    
    //檢查請(qǐng)求通知權(quán)限
    [JJAuthorityManager jj_checkNotificationAuthorized:^(BOOL authorized) {
        if (authorized) {
            NSLog(@"已經(jīng)授權(quán)了");
        }
        else {
            [JJAuthorityManager jj_getNotificationAuthorization];
        }
    }];
    
    sleep(3);
    
    //檢查相冊(cè)權(quán)限
    JJAuthorizationType type = [JJAuthorityManager jj_checkAlbumAuthorization];
    
    if (type == JJAuthorizationTypeAllow) {
        NSLog(@"相冊(cè)已經(jīng)授權(quán)");
    }
    else{
        [JJAuthorityManager jj_getAlbumAuthorization:^(BOOL authorized) {
            if (authorized) {
                NSLog(@"相冊(cè)獲取授權(quán)成功");
            }
            else{
                NSLog(@"相冊(cè)獲取授權(quán)失敗");
            }
        }];
    }
}

@end

下面我們看一下效果圖。

可見都是先獲取權(quán)限，沒有請(qǐng)求權(quán)限彈出的這個(gè)彈窗，這里請(qǐng)求相冊(cè)權(quán)限別忘記配置plist權(quán)限啊，否則會(huì)崩潰的。具體代碼可以見刀客傳奇 - Github

后記

未完，待續(xù)~~~