//
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// Constants.m
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// SDKDemo
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//
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// Created by Tim Lei on 10/13/15.
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// Copyright © 2015 FreeView. All rights reserved.
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//
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#import "HDLEZConstants.h"
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#import <Photos/Photos.h>
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@implementation HDLEZConstants
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/*获取当前controller
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*/
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+(UIViewController *)currentVC{
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UIViewController *currentVC;
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UIViewController *rootVC=[self appWindow].rootViewController;
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if ([rootVC presentedViewController]) {
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rootVC=[rootVC presentedViewController];
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}
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if ([rootVC isKindOfClass:[UITabBarController class]]) {
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currentVC=[(UITabBarController*)rootVC selectedViewController];
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}else if([rootVC isKindOfClass:[UINavigationController class]]){
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currentVC=[(UINavigationController*)rootVC visibleViewController];
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}else{
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currentVC=rootVC;
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}
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return currentVC;
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}
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/*获取当前window
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*/
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+(UIWindow*)appWindow{
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UIWindow *window;
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if (@available(iOS 13.0, *)) {
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HDLEZLog(@"windows:%@",[UIApplication sharedApplication].windows);
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window = [UIApplication sharedApplication].windows[0];
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if (!window) {
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window=[UIApplication sharedApplication].delegate.window;
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}
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} else {
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window = [UIApplication sharedApplication].delegate.window;
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}
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return window;
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}
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+(UIImage *)captureImageFromView:(UIView *)view{
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// // currentView 当前的view 创建一个基于位图的图形上下文并指定大小为
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// UIGraphicsBeginImageContextWithOptions(CGSizeMake(view.frame.size.width, view.frame.size.height), NO, 0.0);
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// // renderInContext呈现接受者及其子范围到指定的上下文
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// [view.layer renderInContext:UIGraphicsGetCurrentContext()];
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// // 返回一个基于当前图形上下文的图片
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// UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
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// // 移除栈顶的基于当前位图的图形上下文
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// UIGraphicsEndImageContext();
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// // 保存图片
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// //UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);
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// return viewImage;
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UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, 0.0);
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// Render our snapshot into the image context
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[view drawViewHierarchyInRect:view.bounds afterScreenUpdates:NO];
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// Grab the image from the context
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UIImage *complexViewImage = UIGraphicsGetImageFromCurrentImageContext();
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// Finish using the context
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UIGraphicsEndImageContext();
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return complexViewImage;
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}
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#pragma 保存图片到相册
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+(void)saveImageToPhotosAlbum:(UIImage *)savedImage
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{
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PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
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if (status == PHAuthorizationStatusNotDetermined)
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{
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[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
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if(status == PHAuthorizationStatusAuthorized)
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{
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UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), NULL);
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}
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}];
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}
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else
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{
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if (status == PHAuthorizationStatusAuthorized)
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{
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UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), NULL);
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}
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}
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}
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// 保存到相册指定回调方法
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+(void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
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{
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NSString *message = nil;
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NSString *languageName = [[[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"] objectAtIndex:0];
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NSString *saveToTheAlbumsStr,*operationFailedStr,*tipStr,*okStr;
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// 简体中文
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if ([languageName rangeOfString:@"zh-Hans"].location != NSNotFound) {
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tipStr = @"提示";
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saveToTheAlbumsStr = @"已保存至手机相册.";
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operationFailedStr = @"操作失败";
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okStr = @"确认";
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}else{
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tipStr = @"Prompt";
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okStr = @"OK";
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saveToTheAlbumsStr = @"Saved to the albums.";
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operationFailedStr = @"Operation failed.";
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}
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if (!error) {
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message = saveToTheAlbumsStr;
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}
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else
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{
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message = operationFailedStr;
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}
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[self showUIAlertView:message title:tipStr cancelTitle:okStr];
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}
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+(void)showUIAlertView:(NSString *)mes title:(NSString *)title cancelTitle:(NSString *)cancleTitle
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{
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:mes preferredStyle:UIAlertControllerStyleAlert];
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[alertController addAction:[UIAlertAction actionWithTitle:cancleTitle style:UIAlertActionStyleCancel handler:nil]];
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[[self topMostController] presentViewController:alertController animated:YES completion:nil];
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}
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+(UIViewController *) topMostController {
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UIViewController*topController ;
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if ([UIApplication sharedApplication].delegate.window) {
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topController= [UIApplication sharedApplication].delegate.window.rootViewController;
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}else{
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topController=[self appWindow].rootViewController;
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}
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while(topController.presentedViewController){
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topController=topController.presentedViewController;
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}
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return topController;
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}
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/**
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* 生成二维码
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*/
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+ (UIImage *)creatCIQRCodeImage:(NSString *)dataStr{
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//创建过滤器，这里的@"CIQRCodeGenerator"是固定的
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CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
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//恢复默认设置
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[filter setDefaults];
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//给过滤器添加数据
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NSData *data = [dataStr dataUsingEncoding:NSUTF8StringEncoding];
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//value必须是NSData类型
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[filter setValue:data forKeyPath:@"inputMessage"];
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//生成二维码
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CIImage *outputImage = [filter outputImage];
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//显示二维码
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return [self creatNonInterpolatedUIImageFormCIImage:outputImage withSize:100.0];
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}
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+ (UIImage *)creatNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat)size {
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CGRect extent = CGRectIntegral(image.extent);
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CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
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//创建bitmap
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size_t width = CGRectGetWidth(extent) * scale;
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size_t height = CGRectGetHeight(extent) * scale;
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CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray();
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CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone);
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CIContext *context = [CIContext contextWithOptions:nil];
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CGImageRef bitmapImage = [context createCGImage:image fromRect:extent];
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CGContextSetInterpolationQuality(bitmapRef, kCGInterpolationNone);
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CGContextScaleCTM(bitmapRef, scale, scale);
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CGContextDrawImage(bitmapRef, extent, bitmapImage);
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//保存bitmap图片
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CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
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CGContextRelease(bitmapRef);
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CGImageRelease(bitmapImage);
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return [UIImage imageWithCGImage:scaledImage];
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}
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/*获取特定时间格式的时间字符串
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*/
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+(NSString *)timeStrWithFormate:(NSString *)formate data:(NSDate *)date{
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NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
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[dateFormatter setDateFormat:formate];
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NSString *dateString = [dateFormatter stringFromDate:date];
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return dateString;
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}
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/**
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计算文字高度，允许换行计算
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@param fontSize 文字大小
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@param widht 文字宽度
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@param text 文字内容
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@return 返回文字的高度
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*/
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+(CGFloat)sizeLineFeedWithFont:(CGFloat)fontSize textSizeWidht:(CGFloat)widht text:(NSString*)text{
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UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, widht, 0)];
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textView.text = text;
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textView.font = [UIFont systemFontOfSize:fontSize];
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CGSize size = CGSizeMake(widht, MAXFLOAT);
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CGSize constraint = [textView sizeThatFits:size];
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return constraint.height;
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}
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/**
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* 保存数据
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*/
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+ (void)saveObject:(id )obj key:(NSString*)key{
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NSUserDefaults *UD=[NSUserDefaults standardUserDefaults];
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[UD setObject:obj forKey:key];
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[UD synchronize];
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}
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/**
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* 获取数据
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*/
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+ (id)getObjectBykey:(NSString*)key{
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NSUserDefaults *UD=[NSUserDefaults standardUserDefaults];
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return [UD objectForKey:key];
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}
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/*小于两位数前面自动填补0
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*/
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+(NSString *)autoFillZero:(NSInteger)value;{
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NSString *result=@"";
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if (value<10) {
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result=[NSString stringWithFormat:@"0%ld",(long)value];
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}else{
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result=[NSString stringWithFormat:@"%ld",(long)value];
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}
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return result;
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}
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/*时间对比
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*/
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+ (int)compareOneDay:(NSDate *)oneDay withAnotherDay:(NSDate *)anotherDay
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{
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NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
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[dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
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NSString *oneDayStr = [dateFormatter stringFromDate:oneDay];
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NSString *anotherDayStr = [dateFormatter stringFromDate:anotherDay];
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NSDate *dateA = [dateFormatter dateFromString:oneDayStr];
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NSDate *dateB = [dateFormatter dateFromString:anotherDayStr];
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NSComparisonResult result = [dateA compare:dateB];
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NSLog(@"oneDay : %@, anotherDay : %@", oneDay, anotherDay);
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if (result == NSOrderedDescending) {
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//在指定时间前面 过了指定时间 过期
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return 1;
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}
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else if (result == NSOrderedAscending){
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//没过指定时间 没过期
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//NSLog(@"Date1 is in the past");
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return -1;
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}
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//刚好时间一样.
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//NSLog(@"Both dates are the same");
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return 0;
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}
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/*时间格式转换
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*/
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+(NSString *)turnDateString:(NSString*)dateString toFormater:(NSString*)formater{
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//原始时间
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NSDateFormatter *originDateFormatter = [[NSDateFormatter alloc] init];
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[originDateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
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NSDate *oringinDate = [originDateFormatter dateFromString:dateString];
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//转换目标时间
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NSDateFormatter *targetDateFormatter = [[NSDateFormatter alloc] init];
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[targetDateFormatter setDateFormat:formater];
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NSString *targetDateStr = [targetDateFormatter stringFromDate:oringinDate];
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return targetDateStr;
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}
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/*判断是否为纯数字
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@param number 内容
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*/
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+(BOOL)validateNumber:(NSString*)number{
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BOOL res = YES;
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NSCharacterSet* tmpSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789"];
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int i = 0;
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while (i < number.length) {
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NSString * string = [number substringWithRange:NSMakeRange(i, 1)];
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NSRange range = [string rangeOfCharacterFromSet:tmpSet];
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if (range.length == 0) {
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res = NO;
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break;
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}
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i++;
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}
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return res;
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}
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/* 将nil转为""
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*/
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+(NSString*)turnNil:(NSString *)str{
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if (str == nil || str == NULL) {
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return @"";
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}else{
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return str;
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}
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}
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@end
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