-(void)addGes{ //创建点按手势
UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGes:)];
//手势也可以设置代理
tapGes.delegate = self;
//添加手势
[self.imageView addGestureRecognizer:tapGes];
}
// 调用
- (IBAction)tapGes:(UITapGestureRecognizer *)tapges {
[self uploadImage];
}
- (void)uploadImage {
// 创建并弹出警示框, 选择获取图片的方式(相册和通过相机拍照)
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"获取图片" message:@"请选择方式" preferredStyle:UIAlertControllerStyleActionSheet];
UIAlertAction *camera = [UIAlertAction actionWithTitle:@"相机" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self readImageFromCamera];
}];
UIAlertAction *album = [UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self readImageFromAlbum];
}];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
[alertController addAction:camera];
[alertController addAction:album];
[alertController addAction:cancel];
[self presentViewController: alertController animated:YES completion:nil];}
// 从相册中读取照片
- (void)readImageFromAlbum {
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; // 创建一个UIImagePickerController对象 imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; // 选择资源类型为相册
// 指定代理，代理需服从,协议
imagePicker.delegate = self;
imagePicker.allowsEditing = YES; // 是否允许用户编辑
[self presentViewController:imagePicker animated:YES completion:nil]; // 展示相册
}
// 拍照
- (void)readImageFromCamera {
// 判断选择的模式是否为相机模式，如果没有则弹窗警告
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.allowsEditing = YES; // 允许编辑
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.delegate = self;
[self presentViewController:imagePicker animated:YES completion:nil];
} else {
// 未检测到摄像头弹出窗口 UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"警告" message:@"未检测到摄像头" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *confirm = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil];
[alert addAction:confirm];
[self presentViewController:alert animated:YES completion:nil];
}
}
#pragma mark// 图片编辑完成之后触发的方法
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo {
// 1. 让image显示在界面上即可
self.imageView.image = image;
//图片存入相册
if(picker.sourceType == UIImagePickerControllerSourceTypeCamera){
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
}
[self dismissViewControllerAnimated:YES completion:nil];
}
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