文档相关

1、调用相机、相册、图库

#import "ViewController.h"
#import <MobileCoreServices/MobileCoreServices.h>
#import <AVFoundation/AVFoundation.h>
#import <MediaPlayer/MediaPlayer.h>


@interface ViewController ()<UIImagePickerControllerDelegate,UINavigationControllerDelegate>
{
    BOOL canmerIsOK;
    BOOL photoLibaryIsOk;
    BOOL photosAlbumIsOk;
    UIImagePickerController *_imagePickerController;
}

@property (weak, nonatomic) IBOutlet UIImageView *imageView;

@end

@implementation ViewController
- (IBAction)showImagePickerView:(id)sender {
    //NSLog(@"相册");
    _imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    
    [self presentViewController:_imagePickerController animated:YES completion:nil];
    
}
- (IBAction)useCamera:(id)sender {
    _imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
    //录制视频时长，默认10s
    _imagePickerController.videoMaximumDuration = 15;
    
    //相机类型（拍照、录像...）字符串需要做相应的类型转换
    _imagePickerController.mediaTypes = @[(NSString *)kUTTypeMovie,(NSString *)kUTTypeImage];
    
    //视频上传质量
    //UIImagePickerControllerQualityTypeHigh高清
    //UIImagePickerControllerQualityTypeMedium中等质量
    //UIImagePickerControllerQualityTypeLow低质量
    //UIImagePickerControllerQualityType640x480
    _imagePickerController.videoQuality = UIImagePickerControllerQualityTypeHigh;
    
    //设置摄像头模式（拍照，录制视频）为录像模式
    _imagePickerController.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
    [self presentViewController:_imagePickerController animated:YES completion:nil];

    
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    _imagePickerController = [[UIImagePickerController alloc] init];
    _imagePickerController.delegate = self;
    _imagePickerController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    _imagePickerController.allowsEditing = YES;
    
    
    
    
    // Do any additional setup after loading the view, typically from a nib.
}

#pragma mark UIImagePickerControllerDelegate
//该代理方法仅适用于只选取图片时
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(nullable NSDictionary<NSString *,id> *)editingInfo {
    NSLog(@"选择完毕----image:%@-----info:%@",image,editingInfo);
}


//适用获取所有媒体资源，只需判断资源类型
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
    NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];
    //判断资源类型
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]){
        //如果是图片
        self.imageView.image = info[UIImagePickerControllerEditedImage];
        //压缩图片
        NSData *fileData = UIImageJPEGRepresentation(self.imageView.image, 1.0);
        //保存图片至相册
        UIImageWriteToSavedPhotosAlbum(self.imageView.image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
        //上传图片
//        [self uploadImageWithData:fileData];
        
    }else{
        //如果是视频
        NSURL *url = info[UIImagePickerControllerMediaURL];
        //播放视频
//        _moviePlayer.contentURL = url;
//        [_moviePlayer play];
        //保存视频至相册（异步线程）
        NSString *urlStr = [url path];
        
        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
            if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(urlStr)) {
                
                UISaveVideoAtPathToSavedPhotosAlbum(urlStr, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);
            }
        });
        NSData *videoData = [NSData dataWithContentsOfURL:url];
        //视频上传
//        [self uploadVideoWithData:videoData];
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}


#pragma mark 图片保存完毕的回调
- (void) image: (UIImage *) image didFinishSavingWithError:(NSError *) error contextInfo: (void *)contextInf{
    
}

#pragma mark 视频保存完毕的回调
- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInf{
    if (error) {
        NSLog(@"保存视频过程中发生错误，错误信息:%@",error.localizedDescription);
    }else{
        NSLog(@"视频保存成功.");
    }
}

2、调用iBook

需求调试条件：（iOS4.0 later）

1NSString *fileToOpen = [[NSBundle mainBundle] pathForResource:@"readme" ofType:@"pdf"];
NSURL *url = [NSURL fileURLWithPath:fileToOpen];
 docController = [[UIDocumentInteractionController interactionControllerWithURL:url] retain];
BOOL isValid = [docController presentOpenInMenuFromRect:CGRectZero inView:self.view animated:YES];

3、打开word、execl、pdf等文档

方法一：
用UIWebView就可以了
-(void)loadDocument:(NSString*)documentName inView:(UIWebView*)webView
{
    NSString *path = [[NSBundle mainBundle] pathForResource:documentName ofType:nil];
    NSURL *url = [NSURL fileURLWithPath:path];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [webView loadRequest:request];
}

// Calling -loadDocument:inView:
[self loadDocument:@"test.doc" inView:self.myWebview];


方法我也已经测试过了，希望对大家有帮助，


方法二：
下面方法是直接通过QLPreviewController打开文档

qlViewController = [[QLPreviewController alloc] init];
   qlViewController.dataSource = self;  
   [self presentModalViewController:qlViewController animated:YES];


- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller {
return 1;
}
- (id <QLPreviewItem>)previewController:(QLPreviewController *)controller 
      previewItemAtIndex:(NSInteger)index{
//-------------读文件
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
if (!documentsDirectory) {
  NSLog(@"Documents directory not found!");//return ;
} 
NSString *fileName=[NSString stringWithFormat:@"%@.%@",nameQ,extQ];
NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; 
//-------------
NSURL *myQLDocument = [NSURL fileURLWithPath:appFile];
return myQLDocument;
}