相机权限和相册权限 使用block 判断

 

 

 

 

 .h文件中

+ (void)camaraCanuse:(QTCamaraCanuse)camaraCanUse camaraNotCanuse:(QTCamaraNotCanuse)camaraNotCanUse showAlert:(BOOL)showAlert showMsg:(NSString*)showMsg;

+(void)photoCanuse:(QTPhotoCanuse)photoCanUse photoNotCanuse:(QTPhotoNotCanuse)photoNotCanUse showAlert:(BOOL)showAlert showMsg:(NSString*)showMsg;

 

.m文件中

///底层判断 相机权限和照片是否打开

+ (void)camaraCanuse:(QTCamaraCanuse)camaraCanUse camaraNotCanuse:(QTCamaraNotCanuse)camaraNotCanUse showAlert:(BOOL)showAlert showMsg:(NSString*)showMsg{

    BOOL canUse = [self camaraHadAuthorizationAndShowAlert:showAlert showMsg:showMsg];

    if (canUse) {

        camaraCanUse(canUse);

    }else{

        camaraNotCanUse(canUse);

    }

        

}

+(void)photoCanuse:(QTPhotoCanuse)photoCanUse photoNotCanuse:(QTPhotoNotCanuse)photoNotCanUse showAlert:(BOOL)showAlert showMsg:(NSString*)showMsg {

    BOOL canUse = [self checkPhotoAuthorizationAndShowAlert:showAlert showMsg:showMsg];

    if (canUse) {

        photoCanUse(canUse);

    }else{

        photoNotCanUse(canUse);

    }

}

 

 

 

+ (BOOL)camaraHadAuthorizationAndShowAlert:(BOOL)show showMsg:(NSString*)showMsg{

    NSString *mediaType = AVMediaTypeVideo;// Or AVMediaTypeAudio

    AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];

    NSLog(@"---受权状态:--------%ld",(long)authStatus);

    // This status is normally not visible—the AVCaptureDevice class methods for discovering devices do not return devices the user is restricted from accessing.

    if(authStatus ==AVAuthorizationStatusRestricted){

        NSLog(@"Restricted,受权限制");

        return NO;

 

    }else if(authStatus == AVAuthorizationStatusDenied){

        // The user has explicitly denied permission for media capture.

        NSLog(@"Denied,受权拒绝");     //应该是这个，若是不容许的话

       NSString *showStr = @"请在设备的\"设置-隐私-相机\"中容许访问相机。";

        if (strNotNil(showMsg)) {

            showStr = showMsg;

        }

        if (show) {

            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

                                                            message:showStr

                                                           delegate:self

                                                  cancelButtonTitle:@"肯定"

                                                  otherButtonTitles:nil];

             [alert show];

        }

       

        return NO;

    }

    else if(authStatus == AVAuthorizationStatusAuthorized){//容许访问

        // The user has explicitly granted permission for media capture, or explicit user permission is not necessary for the media type in question.

        NSLog(@"Authorized,受权啦");

        return YES;

    }else if(authStatus == AVAuthorizationStatusNotDetermined){

        // Explicit user permission is required for media capture, but the user has not yet granted or denied such permission.

        [AVCaptureDevice requestAccessForMediaType:mediaType completionHandler:^(BOOL granted) {

            if(granted){//点击容许访问时调用

                //用户明确许可与否，媒体须要捕获，但用户还没有授予或拒绝许可。

                NSLog(@"Granted access to %@", mediaType);

            }

            else {

                NSLog(@"Not granted access to %@", mediaType);

            }

        }];

        return NO;

    }else {

        return YES;

//        NSLog(@"未知的受权状态!");

    }

}

 

 

 

+ (BOOL)checkPhotoAuthorizationAndShowAlert:(BOOL)show showMsg:(NSString*)showMsg{

    ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus];

    if (author == ALAuthorizationStatusRestricted || author ==ALAuthorizationStatusDenied)

    {

        if (show) {

            NSString *showStr = @"请在设备的\"设置-隐私-照片\"中容许访问相机。";

            if (strNotNil(showMsg)) {

                showStr = showMsg;

            }

            //无权限

            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

                                                            message:showStr

                                                           delegate:self

                                                  cancelButtonTitle:@"肯定"

                                                  otherButtonTitles:nil];

            [alert show];

 

        }

               ECLog(@"相册没受权");

        return NO;

    }else{

        return YES;

        ECLog(@"相册受权了");

    }

}

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