一、带弹框的权限判断
.h
typedef void (^FinishPicking)(UIImage *image);
@interface ImagePicker : NSObject
// 访问相机
+ (void)showCameraFromVC:(UIViewController *)fromVC finishPicking:(FinishPicking)finishPicking;
// 访问相册
+ (void)showAlbumFromVC:(UIViewController *)fromVC finishPicking:(FinishPicking)finishPicking;
@end
.m
#import
#import
static FinishPicking _finishPicking;
@implementation ImagePicker
// 访问相机功能
+ (void)showCameraFromVC:(UIViewController *)fromVC finishPicking:(FinishPicking)finishPicking {
_finishPicking = [finishPicking copy];
// 判断相机授权，弹出访问权限提示框
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
dispatch_async(dispatch_get_main_queue(),^{
if (granted) { // 授权成功
[self openCamera:fromVC];
} else { // 拒绝授权
[self showCameraPermissionsTipPopView:fromVC];
}
});
}];
}
// 打开相机
+ (void)openCamera:(UIViewController *)fromVC {
if (@available(iOS 11.0, *)) {
[UIScrollView appearance].contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAlways;
}
UIImagePickerController *ipv = [[UIImagePickerController alloc] init];
ipv.delegate = [self self];
ipv.sourceType = UIImagePickerControllerSourceTypeCamera;
ipv.modalPresentationStyle = UIModalPresentationFullScreen;
[fromVC presentViewController:ipv animated:YES completion:nil];
}
// 不能打开相机时提示
+ (void)showCameraPermissionsTipPopView:(UIViewController *)fromVC {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请在手机系统设置中开启此权限" preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {}]];
[alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self openSettings];
}]];
[fromVC presentViewController:alert animated:YES completion:nil];
}
// 访问相册功能
+ (void)showAlbumFromVC:(UIViewController *)fromVC finishPicking:(FinishPicking)finishPicking {
_finishPicking = [finishPicking copy];
// 判断相册授权，弹出访问权限提示框
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
dispatch_async(dispatch_get_main_queue(),^{
if (status == PHAuthorizationStatusAuthorized) {
[self openPhotoAlbum:fromVC];
} else {
[self showPhotoAlbumPermissionsTipPopView:fromVC];
}
});
}];
}
// 打开相册
+ (void)openPhotoAlbum:(UIViewController *)fromVC {
if (@available(iOS 11.0, *)) {
[UIScrollView appearance].contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAlways;
}
UIImagePickerController *ipv = [[UIImagePickerController alloc] init];
ipv.delegate = [self self];
ipv.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
ipv.modalPresentationStyle = UIModalPresentationFullScreen;
[fromVC presentViewController:ipv animated:YES completion:nil];
}
// 不能打开相册时提示
+ (void)showPhotoAlbumPermissionsTipPopView:(UIViewController *)fromVC {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请在手机系统设置中开启此权限" preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {}]];
[alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self openSettings];
}]];
[fromVC presentViewController:alert animated:YES completion:nil];
}
// 打开设置
+ (void)openSettings {
NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if ([[UIApplication sharedApplication] canOpenURL:url]) {
if (@available(iOS 10.0, *)) {
[[UIApplication sharedApplication] openURL:url options:@{} completionHandler:^(BOOL success) {}];
} else {
[[UIApplication sharedApplication] openURL:url];
}
}
}
// 回调
+ (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
if (image && _finishPicking) {
_finishPicking(image);
_finishPicking = nil;
}
[picker dismissViewControllerAnimated:YES completion:^{
if (@available(iOS 11.0, *)) {
[UIScrollView appearance].contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
}
}];
}
+ (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:^{
if (@available(iOS 11.0, *)) {
[UIScrollView appearance].contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
}
}];
}
@end
二、无弹框的权限判断
PHAuthorizationStatus authorizationStatus = [PHPhotoLibrary authorizationStatus];
if (authorizationStatus == PHAuthorizationStatusAuthorized) {
return YES;
} else {
return NO;
}
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusAuthorized) {
return YES;
} else {
return NO;
}
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