2016年01月04日公司项目开发记录

2016年01月04日18:55:39 周一

今天我这边主要完成了”我” 的页面的基本布局和简单功能的实现.

涉及到的代码需要注意的部分

---

设置颜色的宏定义

//获取RGB颜色
#define RGBA(r,g,b,a) [UIColor colorWithRed:r/255.0fgreen:g/255.0fblue:b/255.0falpha:a]
#define RGB(r,g,b) RGBA(r,g,b,1.0f)

#define SKUIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue &0xFF0000) >>16))/255.0green:((float)((rgbValue &0xFF00) >>8))/255.0blue:((float)(rgbValue &0xFF))/255.0alpha:1.0]

---

设置提示框的方式

第一种:

       //通过弹窗提示用户切换头像
        UIAlertController *alert = [UIAlertControlleralertControllerWithTitle:@"是否切换头像"message:nilpreferredStyle:(UIAlertControllerStyleActionSheet)];
   
        UIAlertAction *camera = [UIAlertActionactionWithTitle:@"拍照"style:(UIAlertActionStyleDefault)handler:^(UIAlertAction*_Nonnullaction) {
            NSLog(@"调用系统相机");
   
            //调用系统相机
            UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
            if ([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
                UIImagePickerController *picker = [[UIImagePickerControlleralloc]init];
                picker.delegate=self;
                picker.allowsEditing=YES;
                picker.sourceType= sourceType;
                [selfpresentViewController:pickeranimated:YEScompletion:nil];
            }
            else{
                NSLog(@"模拟器无法打开相机");
            }
        }];
        UIAlertAction *photo  = [UIAlertActionactionWithTitle:@"从相册中选择"style:(UIAlertActionStyleDefault)handler:^(UIAlertAction*_Nonnullaction) {
            NSLog(@"从相册中选择");
   
            //调用系统相册
            UIImagePickerController *picker = [[UIImagePickerControlleralloc]init];
            picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
            picker.delegate=self;
            picker.allowsEditing=YES;
            [selfpresentViewController:pickeranimated:YEScompletion:nil];
        }];
        UIAlertAction *cancle = [UIAlertActionactionWithTitle:@"取消"style:(UIAlertActionStyleCancel)handler:nil];
        [alert addAction:camera];
        [alert addAction:photo];
        [alert addAction:cancle];

        [selfpresentViewController:alertanimated:YEScompletion:^{}];

第二种:

先设置属性

   UIActionSheet*myActionSheet;   //下拉菜单

实现方法

   //在这里呼出下方菜单按钮项
    myActionSheet = [[UIActionSheetalloc]initWithTitle:@"是否切换头像"
                                               delegate:self
                                      cancelButtonTitle:@"取消"
                                 destructiveButtonTitle:nil
                                      otherButtonTitles:@"拍照",@"从相册选择",nil];
   

    [myActionSheetshowInView:self.view];

注意代理 UIActionSheetDelegate

最后实现代理方法

- (void)actionSheet:(UIActionSheet*)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
   
    //呼出的菜单按钮点击后的响应
    if (buttonIndex ==myActionSheet.cancelButtonIndex)
    {
        NSLog(@"取消");
    }
    switch (buttonIndex)
    {
        case 0:  //打开照相机拍照
            [selftakePhoto];
            break;
           
        case 1:  //打开本地相册
            [selfLocalPhoto];
            break;
    }

}

---

调用系统相机

实现方法

//调用系统相机

-(void)takePhoto

{
    UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
    if ([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        UIImagePickerController *pickerCammer = [[UIImagePickerControlleralloc]init];
        if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
        {
            pickerCammer.sourceType=UIImagePickerControllerSourceTypeCamera;
            pickerCammer.mediaTypes= [UIImagePickerControlleravailableMediaTypesForSourceType:pickerCammer.sourceType];
            pickerCammer.delegate=self;
            pickerCammer.allowsEditing=YES;
           
        }
        [selfpresentViewController:pickerCammeranimated:YEScompletion:nil];
       
    }else
    {
        NSLog(@"模拟其中无法打开照相机,请在真机中使用");
    }

}

//打开本地相册
-(void)LocalPhoto
{
    UIImagePickerController *picker = [[UIImagePickerControlleralloc]init];
   
    picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
    picker.delegate=self;
    //设置选择后的图片可被编辑
    picker.allowsEditing=YES;
    [selfpresentViewController:pickeranimated:YEScompletion:nil];

}

实现代理 UIImagePickerControllerDelegate

实现代理方法

#pragma mark -切换用户头像代理
//当选择一张图片后进入这里
-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info

{
    NSString *type = [infoobjectForKey:UIImagePickerControllerMediaType];
   
    //当选择的类型是图片
    if ([type isEqualToString:@"public.image"])
    {
        //先把图片转成NSData
        image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
        NSData *data;
        if (UIImagePNGRepresentation(image) == nil)
        {
            data = UIImageJPEGRepresentation(image,1.0);
        }
        else
        {
            data = UIImagePNGRepresentation(image);
        }
       
        //图片保存的路径
        //这里将图片放在沙盒的documents文件夹中
        NSString * DocumentsPath = [NSHomeDirectory()stringByAppendingPathComponent:@"Documents"];
       
        //文件管理器
        NSFileManager *fileManager = [NSFileManagerdefaultManager];
       
        //把刚刚图片转换的data对象拷贝至沙盒中并保存为image.png
        [fileManager createDirectoryAtPath:DocumentsPathwithIntermediateDirectories:YESattributes:nilerror:nil];
        [fileManager createFileAtPath:[DocumentsPathstringByAppendingString:@"/image.png"]contents:dataattributes:nil];
       
        //得到选择后沙盒中图片的完整路径
        filePath = [[NSStringalloc]initWithFormat:@"%@%@",DocumentsPath, @"/image.png"];
        NSLog(@"图片的路径是：%@",filePath);
        //关闭相册界面
        [picker dismissViewControllerAnimated:YEScompletion:nil];
       
        NSUserDefaults *userDefault = [NSUserDefaultsstandardUserDefaults];
        [userDefault setObject:filePathforKey:@"userImage"];
        [userDefault synchronize];
       
        //将之前的按钮移除视图
        [userImage_imageremoveFromSuperview];
       
        [selfchooseUserImageAndTap];
    }
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker{
    NSLog(@"您取消了选择图片");
    [picker dismissViewControllerAnimated:YEScompletion:nil];

}

---

本地化存储 NSUserDefault

获取到图片的本地路径后进行保存

       NSUserDefaults*userDefault = [NSUserDefaultsstandardUserDefaults];
        [userDefault setObject:filePathforKey:@"userImage"];

        [userDefaultsynchronize];

第二次登录的时候重新赋值

   //从本地取之前保存的图片
    NSUserDefaults *userDefault = [NSUserDefaultsstandardUserDefaults];
    NSString *fileToUserImage = [userDefaultstringForKey:@"userImage"];

   image= [UIImageimageWithContentsOfFile:fileToUserImage];

需要注意

存储只能存储基本类型

NSUserDefaults支持的数据格式有：NSNumber（Integer、Float、Double），NSString，NSDate，NSArray，NSDictionary，BOOL类型

而且存储时，除NSNumber类型使用对应的类型意外，其他的都是使用setObject:forKey: 

最后同步到硬盘  这步不是必须的,但是推荐加上 [userDefaultsynchronize];

---

使用 SVN 冲突的时候(SVN:155015)

1.自己手动查询(推荐)

2.可以使用这个按钮,但是很多时候会出错,毕竟自动合并

3.使用命令行解决(未验证实际效果)

或者

SVN resolve <你的文件夹名称>

更多精彩文章,尽在我的公众号.