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UIImagePickerController拍照录视频选取图片

思路

   
    NSCameraUsageDescription
       
       
   
    NSMicrophoneUsageDescription
       
       
   
    NSPhotoLibraryAddUsageDescription
       
   

////  ViewController.m//  ImagePickerDemo////  Created by  on 2020/2/27.//  Copyright © 2020 Shae. All rights reserved.//#import "ViewController.h"#import 
   
    #import 
    
     #import 
     
      @interface ViewController ()
      
       @end@implementation ViewControllerUIImagePickerController *picker;- (void)viewDidLoad {
       [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    NSLog(@"%d",testprefix);    picker=[[UIImagePickerController alloc]init];    picker.delegate=self;}- (IBAction)takePhoto:(UIButton *)sender {
       //如果拍摄的摄像头可用    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
           //将sourceType设置为UIImagePickerControllerSourceTypeCamera代表拍照或拍视频        picker.sourceType=UIImagePickerControllerSourceTypeCamera;        //设置拍照照片        picker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModePhoto;        //设置使用手机的前置摄像头        //picker.cameraDevice=UIImagePickerControllerCameraDeviceFront;        //设置拍摄的照片允许编辑        picker.allowsEditing=YES;    }else{
           NSLog(@"无法打开摄像头");    }    //显示picker视图控制器    [self presentViewController:picker animated:YES completion:nil];    }- (IBAction)takeVideo:(UIButton *)sender {
       if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
           // 将sourceType设为UIImagePickerControllerSourceTypeCamera代表拍照或拍视频        picker.sourceType=UIImagePickerControllerSourceTypeCamera;        //将mediaTypes设置为所有支持的多媒体类型        picker.mediaTypes=[UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];        //设置拍摄视频        picker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModeVideo;        //设置拍摄高质量的视频        picker.videoQuality=UIImagePickerControllerQualityTypeHigh;    }else{
           NSLog(@"无法打开摄像头");    }    [self presentViewController:picker animated:YES completion:nil];}- (IBAction)loadPhoto:(UIButton *)sender {
       //设置选择加载相册的图片或视频    picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;//y图片视频    //picker.sourceType=UIImagePickerControllerSourceTypeSavedPhotosAlbum;//仅图片    picker.allowsEditing=YES;    [self presentViewController:picker animated:YES completion:nil];}//当得到照片或者视频j后，调用该委托方法- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary
       
         *)info{
       NSLog(@"成功：%@",info);    //获取用户拍摄的是照片还是视频    NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];    //判断获取类型：图片，并且是刚拍摄的图片    if ([mediaType isEqualToString:(NSString*)kUTTypeImage]&&picker.sourceType==UIImagePickerControllerSourceTypeCamera) {
           UIImage *theImage=nil;        //判断，图片是否允许篡改        if ([picker allowsEditing]) {
               //获取用户编辑之后的图像            theImage=[info objectForKey:UIImagePickerControllerEditedImage];        }else{
               //获取原始的照片            theImage=[info objectForKey:UIImagePickerControllerOriginalImage];        }        //保存图片到相册中        UIImageWriteToSavedPhotosAlbum(theImage, self, nil, nil);    }else if ([mediaType isEqualToString:(NSString*)kUTTypeMovie]){
           //获取视频文件的url        NSURL *mediaURL=[info objectForKey:UIImagePickerControllerMediaURL];        //将视频保存到媒体库        UISaveVideoAtPathToSavedPhotosAlbum(mediaURL.path,self,@selector(video:didFinishSavingWithError:contextInfo:),nil);        NSLog(@"mediaURL.path:%@",mediaURL.path);    }else if ([mediaType isEqualToString:(NSString*)kUTTypeImage]&&picker.sourceType==UIImagePickerControllerSourceTypePhotoLibrary){
           //呈现选取的照片        if ([picker allowsEditing]) {
               //获取用户编辑之后的图像            self.loadImageView.image=[info objectForKey:UIImagePickerControllerEditedImage];        }else{
               //获取原始的照片            self.loadImageView.image=[info objectForKey:UIImagePickerControllerOriginalImage];        }    }    //隐藏UIImagePickerController    [picker dismissViewControllerAnimated:YES completion:nil];}// UISaveVideoAtPathToSavedPhotosAlbum 视频保存回调- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo: (void *)contextInfo {
           NSLog(@"%@",videoPath);        NSLog(@"%@",error);    }//当用户取消时，调用该代理方法- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
       NSLog(@"用户取消的拍摄");    //隐藏UIImagePickerController    [picker dismissViewControllerAnimated:YES completion:nil];}@end
       
      
     
    
   

demo

简单封装一下

@property (nonatomic,strong)UIImagePickerController *picker;

- (UIImagePickerController *)picker{
       if (_picker==nil) {
           _picker=[[UIImagePickerController alloc]init];        _picker.delegate=self;    }    return _picker;}

//调用 [self takePicture:UIImagePickerControllerCameraDeviceRear];

/** 封装的拍照拍照接口 cameraDevice: UIImagePickerControllerCameraDeviceRear UIImagePickerControllerCameraDeviceFront */-(void)takePicture:(UIImagePickerControllerCameraDevice)cameraDevice{
       //如果拍摄的摄像头可用    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
           //将sourceType设置为UIImagePickerControllerSourceTypeCamera代表拍照或拍视频        self.picker.sourceType=UIImagePickerControllerSourceTypeCamera;        //设置拍照照片        self.picker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModePhoto;        //设置使用手机的前置摄像头        self.picker.cameraDevice=cameraDevice;        //设置拍摄的照片允许编辑        self.picker.allowsEditing=YES;    }else{
           NSLog(@"无法打开摄像头");        return;    }    //显示picker视图控制器    [self presentViewController:self.picker animated:YES completion:nil];}

#pragma mark -UIImagePickerControllerDelegate-//当得到照片或者视频j后，调用该委托方法- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary
   
     *)info{
       NSLog(@"成功：%@",info);    //获取用户拍摄的是照片还是视频    NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];    NSLog(@"标记");    //判断获取类型：图片，并且是刚拍摄的图片    if ([mediaType isEqualToString:(NSString*)kUTTypeImage]&&picker.sourceType==UIImagePickerControllerSourceTypeCamera) {
           NSLog(@"标记1");        UIImage *theImage=nil;        //判断，图片是否允许篡改        if ([picker allowsEditing]) {
               //获取用户编辑之后的图像            theImage=[info objectForKey:UIImagePickerControllerEditedImage];        }else{
               //获取原始的照片            theImage=[info objectForKey:UIImagePickerControllerOriginalImage];        }        //保存图片到相册中        //UIImageWriteToSavedPhotosAlbum(theImage, self, nil, nil);       NSLog(@"标记2");                //隐藏UIImagePickerController        [_picker dismissViewControllerAnimated:YES completion:nil];    }}
   

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