打开摄像头显示中文，可在Info.plist添加Localizations（array）字段，添加Chinese (simplified)
//
// ViewController.m
// TestVideoAndPicture
//
// Created by albert on 2017/4/14.
// Copyright © 2017年 albert. All rights reserved.
//
#import "ViewController.h"
#import <AssetsLibrary/AssetsLibrary.h>
#import <MobileCoreServices/MobileCoreServices.h>
@interface ViewController () <UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@property (weak, nonatomic) IBOutlet UIButton *testGestureButton;
@property (weak, nonatomic) IBOutlet UIImageView *testImageView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
}
// 选择相册中视频和照片
- (IBAction)videos:(id)sender {
// 检查相册是否可用
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
NSLog(@"sorry, no camera or camera is unavailable.");
return;
}
// 创建图像选取控制器
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
// 设置图像选取控制器的来源模式为PhotoLibrary
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// 设置图像选取控制器的类型为视频和照片
imagePickerController.mediaTypes = [[NSArray alloc] initWithObjects:(NSString*)kUTTypeMovie, (NSString*)kUTTypeImage, nil];
// 允许用户进行编辑
imagePickerController.allowsEditing = YES;
// 设置委托对象
imagePickerController.delegate = self;
// 以模视图控制器的形式显示
[self presentViewController:imagePickerController animated:YES completion:nil];
}
// 拍照
- (IBAction)takePictureButtonClick:(id)sender{
// 检查相机模式是否可用
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
NSLog(@"sorry, no camera or camera is unavailable.");
return;
}
// 获得相机模式下支持的媒体类型
NSArray *availableMediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
BOOL canTakePicture = NO;
for (NSString *mediaType in availableMediaTypes) {
if ([mediaType isEqualToString:(NSString*)kUTTypeImage]) {
// 支持拍照
canTakePicture = YES;
break;
}
}
// 检查是否支持拍照
if (!canTakePicture) {
NSLog(@"sorry, taking picture is not supported.");
return;
}
// 创建图像选取控制器
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
// 设置图像选取控制器的来源模式为相机模式
imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
// 设置图像选取控制器的类型为静态图像
imagePickerController.mediaTypes = [[NSArray alloc] initWithObjects:(NSString*)kUTTypeImage, nil];
// 允许用户进行编辑
imagePickerController.allowsEditing = YES;
// 设置委托对象
imagePickerController.delegate = self;
// 以模视图控制器的形式显示
[self presentViewController:imagePickerController animated:YES completion:nil];
}
// 录像
- (IBAction)captureVideoButtonClick:(id)sender{
// 检查相机模式是否可用
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
NSLog(@"sorry, no camera or camera is unavailable!!!");
return;
}
// 获得相机模式下支持的媒体类型
NSArray *availableMediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
BOOL canTakeVideo = NO;
for (NSString *mediaType in availableMediaTypes) {
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
// 支持摄像
canTakeVideo = YES;
break;
}
}
// 检查是否支持摄像
if (!canTakeVideo) {
NSLog(@"sorry, capturing video is not supported!!!");
return;
}
// 创建图像选取控制器
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
// 设置图像选取控制器的来源模式为相机模式
imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
// 设置图像选取控制器的类型为动态图像
imagePickerController.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];
// 设置摄像图像品质
imagePickerController.videoQuality = UIImagePickerControllerQualityTypeHigh;
// 设置最长摄像时间
imagePickerController.videoMaximumDuration = 30;
// 允许用户进行编辑
imagePickerController.allowsEditing = YES;
// 设置委托对象
imagePickerController.delegate = self;
// 以模式视图控制器的形式显示
[self presentViewController:imagePickerController animated:YES completion:nil];
}
- (void)image:(UIImage*)image didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo{
if (!error) {
NSLog(@"picture saved with no error.");
}else{
NSLog(@"error occured while saving the picture%@", error);
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
// 打印出字典中的内容
NSLog(@"get the media info: %@", info);
// 获取媒体类型
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
// 判断是静态图像还是视频
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) { // 图片
// 获取用户编辑之后的图像
UIImage *editedImage = [info objectForKey:UIImagePickerControllerEditedImage];
// 将该图像保存到媒体库中
UIImageWriteToSavedPhotosAlbum(editedImage, self,@selector(image:didFinishSavingWithError:contextInfo:), NULL);
}else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie]) { // 视频
// 获取视频文件的url
NSURL *mediaURL = [info objectForKey:UIImagePickerControllerMediaURL];
// 创建ALAssetsLibrary对象并将视频保存到媒体库
ALAssetsLibrary *assetsLibrary = [[ALAssetsLibrary alloc] init];
[assetsLibrary writeVideoAtPathToSavedPhotosAlbum:mediaURL completionBlock:^(NSURL *assetURL, NSError *error) {
if (!error) {
NSLog(@"captured video saved with no error.");
}else{
NSLog(@"error occured while saving the video:%@", error);
}
}];
}
[picker dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
[picker dismissViewControllerAnimated:YES completion:nil];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
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