ios 图片上传与压缩,UIImagePickerController设置中文

Posted 2020-11-14 其意亦凡

普通效果

 

 

1.添加协议

<UIImagePickerControllerDelegate, UINavigationControllerDelegate>

2.添加UIImagePickerController

@property (nonatomic, strong) UIImagePickerController *imagePick;           //用于上传图片

3.初始化UIImagePickerController

self.imagePick = [[UIImagePickerController alloc]init];
    self.imagePick.delegate = self;

4.弹框选择

//选取相册内的图片
- (void)changeHeadImageAction {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    //按钮：从相册选择，类型：UIAlertActionStyleDefault
    [alert addAction:[UIAlertAction actionWithTitle:@"从相册选择" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        self.imagePick.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        //        imagePick.mediaTypes = @[(NSString *)kUTTypeImage];
        self.imagePick.allowsEditing = YES;
        [self presentViewController:self.imagePick animated:YES completion:nil];
    }]];
    //按钮：拍照，类型：UIAlertActionStyleDefault
    [alert addAction:[UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear]) {
            self.imagePick.sourceType = UIImagePickerControllerSourceTypeCamera;
            [self presentViewController:self.imagePick animated:YES completion:nil];
        }else{
            NSLog(@"摄像头貌似不支持...");
        }
    }]];
    //按钮：取消，类型：UIAlertActionStyleCancel
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        
    }]];
    [self presentViewController:alert animated:YES completion:nil];
}

5.实现协议方法

// 取消选择照片
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
    [picker dismissViewControllerAnimated:YES completion:nil];
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
    
    [picker dismissViewControllerAnimated:NO completion:nil];
    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

    //压缩照片,这个base64就是需要上传到服务器的图片数据
    [image drawInRect:CGRectMake(0, 0, 150, 266)];
    NSData *data = UIImageJPEGRepresentation(image, 0.0f);
    NSString *base64 = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
       
}

-(void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    viewController.navigationItem.rightBarButtonItem.tintColor = [UIColor whiteColor];
    viewController.navigationItem.leftBarButtonItem.tintColor = [UIColor whiteColor];
    //设置标题颜色
    NSDictionary *dic=[NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:NSForegroundColorAttributeName];
    self.navigationController.navigationBar.titleTextAttributes = dic;
}

- (void)doCancel:(id)b {
    NSLog(@"doCancel");
    [self.imagePick dismissViewControllerAnimated:YES completion:nil];
}

6.设置相册里面的文字为汉字

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//    [NSUserDefaults standardUserDefaults] setObject:@"zh-Hans" forKey:NSLangu;
    
    [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"zh-Hans", nil] forKey:@"AppleLanguages"];
    [[NSUserDefaults standardUserDefaults] synchronize];

    return YES;
}

然后在下面这个位置添加中文