以前一直是竖屏打开相册,所以没什么问题,结果横屏一直闪退,蒙,百度了很久终于解决了
iOS原理也不是很懂,这里就将所有的代码放上来
iOS原生代码 :
IOSAlbumCameraController.h :
@interface IOSAlbumCameraController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIPopoverPresentationControllerDelegate>
@end
IOSAlbumCameraController.h.mm :
//
// OpenPhotoController.m
//
// Created by AnYuanLzh
//
#import "IOSAlbumCameraController.h"
@implementation IOSAlbumCameraController
- (void)leftAction
{
[self interfaceOrientation:UIInterfaceOrientationPortrait];
}
- (void)rightAction
{
[self interfaceOrientation:UIInterfaceOrientationLandscapeRight];
}
- (void)interfaceOrientation:(UIInterfaceOrientation)orientation
{
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
SEL selector = NSSelectorFromString(@"setOrientation:");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];
[invocation setSelector:selector];
[invocation setTarget:[UIDevice currentDevice]];
int val = orientation;
// 从2开始是因为0 1 两个参数已经被selector和target占用
[invocation setArgument:&val atIndex:2];
[invocation invoke];
}
}
-(void)OpenCamera:(UIImagePickerControllerSourceType)type{
[self interfaceOrientation:UIInterfaceOrientationPortrait];
//创建UIImagePickerController实例
UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
//设置代理
picker.delegate = self;
//是否允许编辑 (默认为NO)
picker.allowsEditing = YES;
//设置照片的来源
picker.sourceType = type;
//展示选取照片控制器
if (picker.sourceType == UIImagePickerControllerSourceTypePhotoLibrary &&[[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
picker.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = picker.popoverPresentationController;
//picker.preferredContentSize = [UIScreen mainScreen].bounds.size;
popover.delegate = self;
popover.sourceRect = CGRectMake(0, 0, 0, 0);
popover.sourceView = self.view;
popover.permittedArrowDirections = UIPopoverArrowDirectionAny;
[self presentViewController:picker animated:YES completion:nil];
} else {
[self presentViewController:picker animated:YES completion:^{}];
}
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
[self interfaceOrientation:UIInterfaceOrientationLandscapeRight];
[picker dismissViewControllerAnimated:YES completion:^{}];
UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"];
if (image == nil) {
image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
}
//图片旋转
if (image.imageOrientation != UIImageOrientationUp) {
//图片旋转
image = [self fixOrientation:image];
}
NSString *imagePath = [self GetSavePath:@"Temp.jpg"];
[self SaveFileToDoc:image path:imagePath];
}
-(NSString*)GetSavePath:(NSString *)filename{
NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docPath = [pathArray objectAtIndex:0];
return [docPath stringByAppendingPathComponent:filename];
}
-(void)SaveFileToDoc:(UIImage *)image path:(NSString *)path{
UnitySendMessage("MainScriptHolder", "PicCallFunc", "Temp.jpg");
NSData *data;
if (UIImagePNGRepresentation(image)==nil) {
data = UIImageJPEGRepresentation(image, 1);
}else{
data = UIImagePNGRepresentation(image);
}
[data writeToFile:path atomically:YES];
}
// 打开相册后点击“取消”的响应
- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
{
NSLog(@" --- imagePickerControllerDidCancel !!");
[self interfaceOrientation:UIInterfaceOrientationLandscapeRight];
UnitySendMessage( "MainScriptHolder", "PicCallFunc", (@"").UTF8String);
[self dismissViewControllerAnimated:YES completion:nil];
}
#pragma mark 图片处理方法
//图片旋转处理
- (UIImage *)fixOrientation:(UIImage *)aImage {
CGAffineTransform transform = CGAffineTransformIdentity;
switch (aImage.imageOrientation) {
case UIImageOrientationDown:
case UIImageOrientationDownMirrored:
transform = CGAffineTransformTranslate(transform, aImage.size.width, aImage.size.height);
transform = CGAffineTransformRotate(transform, M_PI);
break;
case UIImageOrientationLeft:
case UIImageOrientationLeftMirrored:
transform = CGAffineTransformTranslate(transform, aImage.size.width, 0);
transform = CGAffineTransformRotate(transform, M_PI_2);
break;
case UIImageOrientationRight:
case UIImageOrientationRightMirrored:
transform = CGAffineTransformTranslate(transform, 0, aImage.size.height);
transform = CGAffineTransformRotate(transform, -M_PI_2);
break;
default:
break;
}
switch (aImage.imageOrientation) {
case UIImageOrientationUpMirrored:
case UIImageOrientationDownMirrored:
transform = CGAffineTransformTranslate(transform, aImage.size.width, 0);
transform = CGAffineTransformScale(transform, -1, 1);
break;
case UIImageOrientationLeftMirrored:
case UIImageOrientationRightMirrored:
transform = CGAffineTransformTranslate(transform, aImage.size.height, 0);
transform = CGAffineTransformScale(transform, -1, 1);
break;
default:
break;
}
// Now we draw the underlying CGImage into a new context, applying the transform
// calculated above.
CGContextRef ctx = CGBitmapContextCreate(NULL, aImage.size.width, aImage.size.height,
CGImageGetBitsPerComponent(aImage.CGImage), 0,
CGImageGetColorSpace(aImage.CGImage),
CGImageGetBitmapInfo(aImage.CGImage));
CGContextConcatCTM(ctx, transform);
switch (aImage.imageOrientation) {
case UIImageOrientationLeft:
case UIImageOrientationLeftMirrored:
case UIImageOrientationRight:
case UIImageOrientationRightMirrored:
// Grr...
CGContextDrawImage(ctx, CGRectMake(0,0,aImage.size.height,aImage.size.width), aImage.CGImage);
break;
default:
CGContextDrawImage(ctx, CGRectMake(0,0,aImage.size.width,aImage.size.height), aImage.CGImage);
break;
}
// And now we just create a new UIImage from the drawing context
CGImageRef cgimg = CGBitmapContextCreateImage(ctx);
UIImage *img = [UIImage imageWithCGImage:cgimg];
CGContextRelease(ctx);
CGImageRelease(cgimg);
return img;
}
+(void) saveImageToPhotosAlbum:(NSString*) readAdr
{
NSLog(@"readAdr: ");
NSLog(readAdr);
UIImage* image = [UIImage imageWithContentsOfFile:readAdr];
UIImageWriteToSavedPhotosAlbum(image,
self,
@selector(image:didFinishSavingWithError:contextInfo:),
NULL);
}
+(void) image:(UIImage*)image didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo
{
NSString* result;
if(error)
{
result = @"图片保存到相册失败!";
}
else
{
result = @"图片保存到相册成功!";
}
UnitySendMessage( "MainScriptHolder", "SaveImageToPhotosAlbumCallBack", result.UTF8String);
}
//videoPath为视频下载到本地之后的本地路径
+ (void)saveVideo:(NSString *)videoPath{
if (videoPath) {
NSURL *url = [NSURL URLWithString:videoPath];
BOOL compatible = UIVideoAtPathIsCompatibleWithSavedPhotosAlbum([url path]);
if (compatible)
{
//保存相册核心代码
UISaveVideoAtPathToSavedPhotosAlbum([url path], self, @selector(savedVedioImage:didFinishSavingWithError:contextInfo:), nil);
}
}
}
//保存视频完成之后的回调
+ (void) savedVedioImage:(UIImage*)image didFinishSavingWithError: (NSError *)error contextInfo: (void *)contextInfo {
NSString* result;
if (error) {
result =@"视频保存失败";
}
else {
result =@"保存视频成功";
}
UnitySendMessage( "MainScriptHolder", "SaveVedioToPhotosAlbumCallBack", result.UTF8String);
}
@end
#if defined (__cplusplus)
extern "C" {
#endif
// 打开相册
void _iosOpenPhotoAlbums()
{
IOSAlbumCameraController *app = [[IOSAlbumCameraController alloc]init];
UIViewController *vc = UnityGetGLViewController();
[vc.view addSubview:app.view];
[app OpenCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}
void _iosSaveImageToPhotosAlbum(char* readAddr)
{
NSString* temp = [NSString stringWithUTF8String:readAddr];
[IOSAlbumCameraController saveImageToPhotosAlbum:temp];
}
void _iosSaveVideoToPhotosAlbum(char* readAddr)
{
NSString* temp = [NSString stringWithUTF8String:readAddr];
[IOSAlbumCameraController saveVideo:temp];
}
#if defined (__cplusplus)
}
#endif
UIImagePickerController+MyImagePicker.h :
#import <UIKit/UIKit.h>
@interface UIImagePickerController (MyImagePicker)
- (BOOL)shouldAutorotate;
- (NSUInteger)supportedInterfaceOrientations;
@end
UIImagePickerController+MyImagePicker.m :
#import "UIImagePickerController+MyImagePicker.h"
@implementation UIImagePickerController (MyImagePicker)
- (BOOL)shouldAutorotate {
return YES;
}
- (NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskLandscape;
}
@end
unity代码 :
IOSAlbumCamera.cs :
public class IOSAlbumCamera : MonoBehaviour
{
#if UNITY_IOS
[DllImport ("__Internal")]
private static extern void _iosOpenPhotoAlbums();
[DllImport ("__Internal")]
private static extern void _iosSaveImageToPhotosAlbum(string readAddr);
[DllImport("__Internal")]
private static extern void _iosSaveVideoToPhotosAlbum(string readAddr);
/// <summary>
/// 保存图片到相册
/// </summary>
/// <param name="readAddr"></param>
public static void iosSaveImageToPhotosAlbum(string readAddr)
{
_iosSaveImageToPhotosAlbum (readAddr);
}
public static void iosSaveVideoToPhotosAlbum(string readAddr)
{
_iosSaveVideoToPhotosAlbum(readAddr);
}
public static void iosOpenPhotoAlbums()
{
_iosOpenPhotoAlbums();
}
#endif
}
调用 IOSAlbumCamera.iosOpenPhotoAlbums();即可
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