IOS打开照相机与本地相册选择图片实例详解

IOS打开照相机与本地相册选择图片

最近正好项目里面要集成“打开照相机与本地相册选择图片”的功能,今天就在这边给大家写一个演示程序;打开相机拍摄后或者在相册中选择一张照片,然后将它显示在界面上。好了废话不多说,因为比较简单直接上源码。

首先,我们在头文件中添加需要用到的actionSheet控件,显示图片的UIImageView控件,并且加上所需要的协议

#import <UIKit/UIKit.h>

@interface ImagePickerViewController : UIViewController<UIImagePickerControllerDelegate,UIActionSheetDelegate,UINavigationControllerDelegate>

@property (span, nonatomic) IBOutlet UIImageView *headImage;

@property (span, nonatomic) UIActionSheet *actionSheet;

- (IBAction)clickPickImage:(id)sender;

@end

通过点击我设置在界面中的按钮来呼出actionSheet控件,来选择相应的操作拍照或是在相册中选择相片,代码如下:

//

// ImagePickerViewController.m

// testAuto

//

// Created by silicon on 15/5/9.

// Copyright (c) 2015年 silicon. All rights reserved.

//

#import "ImagePickerViewController.h"

@interface ImagePickerViewController ()

@end

@implementation ImagePickerViewController

@synthesize actionSheet = _actionSheet;

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view from its nib.

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

/**

@ 调用ActionSheet

*/

- (void)callActionSheetFunc{

if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){

self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照", @"从相册选择", nil nil];

}else{

self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消"destructiveButtonTitle:nil otherButtonTitles:@"从相册选择", nil nil];

}

self.actionSheet.tag = 1000;

[self.actionSheet showInView:self.view];

}

// Called when a button is clicked. The view will be automatically dismissed after this call returns

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{

if (actionSheet.tag == 1000) {

NSUInteger sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

// 判断是否支持相机

if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

switch (buttonIndex) {

case 0:

//来源:相机

sourceType = UIImagePickerControllerSourceTypeCamera;

break;

case 1:

//来源:相册

sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

break;

case 2:

return;

}

}

else {

if (buttonIndex == 2) {

return;

} else {

sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

}

}

// 跳转到相机或相册页面

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];

imagePickerController.delegate = self;

imagePickerController.allowsEditing = YES;

imagePickerController.sourceType = sourceType;

[self presentViewController:imagePickerController animated:YES completion:^{

}];

}

}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

[picker dismissViewControllerAnimated:YES completion:^{

}];

UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

self.headImage.image = image;

}

/*

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

// Get the new view controller using [segue destinationViewController].

// Pass the selected object to the new view controller.

}

*/

- (IBAction)clickPickImage:(id)sender {

[self callActionSheetFunc];

}

@end

代码比较简单,也容易理解,运行的效果如下:

感谢阅读,希望能帮助到大家,谢谢大家对本站的支持!

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