我找到了几种降低图像噪点的方法,但我的任务是测量它.
所以我对能给我一些噪音等级的算法感兴趣.有了这个数字,我可以说一张图像的噪音比其他图像少.
我创建了一个试用Swift的测试项目.但我一直坚持将Swift类导入Objective-C类.项目名称为"TestSwift1".我已将Packaging中的Defines模块设置为YES.的XCode-β3
我有下一个代码:
//swift SwtClass.swift
import Foundation
class SwtClass
{
var title = ""
}
//Objective-C ObjClass.h
@interface ObjClass : NSObject
@property (nonatomic, strong) NSString* title;
@end
//Objective-c ObjClass.m
#import <Foundation/Foundation.h>
#import "ObjClass.h"
#import <testSwift1-Swift.h>
@implementation ObjClass
- (void)doSomething
{
SwtClass* b; // Error: "Use of undeclared identifier 'SwtClass'"
// Error: "Use of undeclared identifier 'b'"
NSLog(@"something is done");
}
@end
Run Code Online (Sandbox Code Playgroud) 我正在尝试使用自动续订订阅来实现应用程序.用户应该付费访问我的应用程序的所有功能.我已经将Parse用作我的应用程序的后端.它为inAppPurchases提供了一些API方法,但没有任何关于自动更新类型的说法.我发现的唯一一件事就是在博客中有两年的线程,据说收据验证仅针对可下载的购买实施.
我试图在文档"简单购买"中使用,它工作正常但我无法弄清楚如何检查我的用户是否已经购买了订阅.
有没有人知道有没有办法通过Parse API来实现,或者这应该以另一种方式实现?
我写了以下课程:
.h:
#import <Foundation/Foundation.h>
@class TDLPaneViewController;
@interface TDLSubViewController : NSObject
@property (nonatomic, strong) IBOutlet UIView* view;
@property (nonatomic, strong) TDLPaneViewController* paneViewController;
- (id) initWithNibName:(NSString*)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil;
- (void)viewWillAppear:(BOOL)animated;
- (void)viewDidAppear:(BOOL)animated;
- (void)viewWillDisppear:(BOOL)animated;
- (void)viewDidDisppear:(BOOL)animated;
@end
Run Code Online (Sandbox Code Playgroud)
.m:
#import "TDLSubViewController.h"
@interface TDLSubViewController ()
{
UIView *view;
}
@property (nonatomic, strong) NSString* nibName;
@property (nonatomic, strong) NSBundle* nibBundle;
@end
@implementation TDLSubViewController
@synthesize paneViewController, view;
@synthesize nibName, nibBundle;
- (id)initWithNibName:(NSString*)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super init];
if (self)
{
self.nibName = …Run Code Online (Sandbox Code Playgroud)