1、改变 UITextField 占位文字 颜色和去掉底部白框
[_userName setValue:[UIColor whiteColor] forKeyPath:@"_placeholderLabel.textColor"];
//去掉底部白框[UIView setAnimationDuration:0.0];28[UIView beginAnimations:nil context:NULL];
2、禁止横屏 在Appdelegate 使用和判断程序是否第一次启动
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
return UIInterfaceOrientationMaskPortrait;
}
//判断程序是否第一次启动
if(![[NSUserDefaultsstandardUserDefaults] boolForKey:@"firstLaunch"]){ [[NSUserDefaultsstandardUserDefaults] setBool:YESforKey:@"firstLaunch"];NSLog(@"第一次启动"); [[NSUserDefaultsstandardUserDefaults] setBool:NOforKey:@"isLogin"]; }else{NSLog(@"已经不是第一次启动了"); }
3、修改状态栏颜色 （默认黑色，修改为白色）
//1.在Info.plist中设置UIViewControllerBasedStatusBarAppearance 为NO
//2.在需要改变状态栏颜色的 AppDelegate中在 didFinishLaunchingWithOptions 方法中增加：
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
//3.如果需要在单个ViewController中添加，在ViewDidLoad方法中增加：
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
4、模糊效果
UIBlurEffect *effect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
UIVisualEffectView *test = [[UIVisualEffectView alloc] initWithEffect:effect];
test.frame = self.view.bounds;
test.alpha = 0.5;
[self.view addSubview:test];
5、强制横屏代码
#pragma mark - 强制横屏代码
- (BOOL)shouldAutorotate
{
//是否支持转屏
return NO;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
//支持哪些转屏方向
return UIInterfaceOrientationMaskLandscape;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationLandscapeRight;
}
- (BOOL)prefersStatusBarHidden
{
return NO;
}
6、在状态栏显示有网络请求的提示器
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
7、相对路径
$(SRCROOT)/
8、视图是否自动（只是把第一个自动）向下挪64
self.automaticallyAdjustsScrollViewInsets = NO; //不让系统帮咱们把scrollView及其子类的视图向下调整64
9、 隐藏手机的状态栏
-(BOOL)prefersStatusBarHidden {
return YES;
}
10、代理的安全保护【断是否有代理，和代理是否执行了代理方法】
if (self.delegate && [self.delegate respondsToSelector:@selector(passValueWithArray:)]) {
// make you codes
}
11、在ARC工程中导入MRC的类和在MRC工程中导入ARC的类
// 在ARC工程中导入MRC的类 我们选中工程->选中targets中的工程,然后选中Build Phases->在导入的类后边加入标记 - fno-objc-arc
// 在MRC工程中导入ARC的类 路径与上面一致,在该类后面加上标记 -fobjc-arc
12、通过2D仿射函数实现小的动画效果(变大缩小) --可用于自定义pageControl中
[UIView animateWithDuration:0.3 animations:^{
imageView.transform = CGAffineTransformMakeScale(2, 2);
} completion:^(BOOL finished) {
imageView.transform = CGAffineTransformMakeScale(1.0, 1.0);
}];
13、查看系统所有字体
for (id familyName in [UIFont familyNames]) {
NSLog(@"%@", familyName);
for (id fontName in [UIFont fontNamesForFamilyName:familyName]) NSLog(@" %@", fontName);
}
14、判断一个字符串是否为数字
NSCharacterSet *notDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
if ([str rangeOfCharacterFromSet:notDigits].location == NSNotFound) {// 是数字
} else {// 不是数字
}
15、将一个view保存为pdf格式
- (void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename
{
NSMutableData *pdfData = [NSMutableData data];
UIGraphicsBeginPDFContextToData(pdfData, aView.bounds, nil);
UIGraphicsBeginPDFPage();
CGContextRef pdfContext = UIGraphicsGetCurrentContext();
[aView.layer renderInContext:pdfContext];
UIGraphicsEndPDFContext();
NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);
NSString* documentDirectory = [documentDirectories objectAtIndex:0];
NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename];
[pdfData writeToFile:documentDirectoryFilename atomically:YES];
NSLog(@"documentDirectoryFileName: %@",documentDirectoryFilename);
}
16、让一个view在父视图中心
child.center = [parent convertPoint:parent.center fromView:parent.superview];
17、获取当前导航控制器下前一个控制器
- (UIViewController *)backViewController
{
NSInteger myIndex = [self.navigationController.viewControllers indexOfObject:self];
if ( myIndex != 0 && myIndex != NSNotFound ) {
return [self.navigationController.viewControllers objectAtIndex:myIndex-1];
} else {
return nil;
}
}
18、保存UIImage到本地
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"Image.png"];
[UIImagePNGRepresentation(image) writeToFile:filePath atomically:YES];
19、键盘上方增加工具栏
UIToolbar *keyboardDoneButtonView = [[UIToolbar alloc] init];
[keyboardDoneButtonView sizeToFit];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done"
style:UIBarButtonItemStyleBordered target:self
action:@selector(doneClicked:)];
[keyboardDoneButtonView setItems:[NSArray arrayWithObjects:doneButton, nil]];
txtField.inputAccessoryView = keyboardDoneButtonView;
20、在image上绘制文字并生成新的image
UIFont *font = [UIFont boldSystemFontOfSize:12];
UIGraphicsBeginImageContext(image.size);
[image drawInRect:CGRectMake(0,0,image.size.width,image.size.height)];
CGRect rect = CGRectMake(point.x, point.y, image.size.width, image.size.height);
[[UIColor whiteColor] set];
[text drawInRect:CGRectIntegral(rect) withFont:font];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
21、判断一个view是否为另一个view的子视图
// 如果myView是self.view本身，也会返回yes
BOOL isSubView = [myView isDescendantOfView:self.view];
22、判断一个字符串是否包含另一个字符串
// 方法一、这种方法只适用于iOS8之后，如果是配iOS8之前用方法二
if ([str containsString:otherStr]) NSLog(@"包含");
// 方法二
NSRange range = [str rangeOfString:otherStr];
if (range.location != NSNotFound) NSLog(@"包含");
23、判断某一行的cell是否已经显示
CGRect cellRect = [tableView rectForRowAtIndexPath:indexPath];
BOOL completelyVisible = CGRectContainsRect(tableView.bounds, cellRect);
24、让导航控制器pop回指定的控制器
NSMutableArray *allViewControllers = [NSMutableArray arrayWithArray:[self.navigationController viewControllers]];
for (UIViewController *aViewController in allViewControllers) {
if ([aViewController isKindOfClass:[RequiredViewController class]]) {
[self.navigationController popToViewController:aViewController animated:NO];
break;
}
}
25、获取屏幕方向
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
if(orientation == 0) //Default orientation
//默认
else if(orientation == UIInterfaceOrientationPortrait)
//竖屏
else if(orientation == UIInterfaceOrientationLandscapeLeft)
// 左横屏
else if(orientation == UIInterfaceOrientationLandscapeRight)
//右横屏
26、UIWebView添加单击手势不响应
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(webViewClick)];
tap.delegate = self;
[_webView addGestureRecognizer:tap];
// 因为webView本身有一个单击手势，所以再添加会造成手势冲突，从而不响应。需要绑定手势代理，并实现下边的代理方法
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;
}
27、获取手机RAM容量
// 需要导入#import
mach_port_t host_port;
mach_msg_type_number_t host_size;
vm_size_t pagesize;
host_port = mach_host_self();
host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
host_page_size(host_port, &pagesize);
vm_statistics_data_t vm_stat;
if (host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size) != KERN_SUCCESS) {
NSLog(@"Failed to fetch vm statistics");
}
/* Stats in bytes */
natural_t mem_used = (vm_stat.active_count +
vm_stat.inactive_count +
vm_stat.wire_count) * pagesize;
natural_t mem_free = vm_stat.free_count * pagesize;
natural_t mem_total = mem_used + mem_free;
NSLog(@"已用: %u 可用: %u 总共: %u", mem_used, mem_free, mem_total);
28、地图上两个点之间的实际距离
// 需要导入#import 位置A、B
CLLocation *locA = [[CLLocation alloc] initWithLatitude:34 longitude:113];
CLLocation *locB = [[CLLocation alloc] initWithLatitude:31.05 longitude:121.76];
// CLLocationDistance求出的单位为米
CLLocationDistance distance = [locA distanceFromLocation:locB];
29、在应用中打开设置的某个界面
// 打开设置->通用
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General"]];
// 以下是设置其他界面
prefs:root=General&path=About
prefs:root=General&path=ACCESSIBILITY
prefs:root=AIRPLANE_MODE
prefs:root=General&path=AUTOLOCK
prefs:root=General&path=USAGE/CELLULAR_USAGE
prefs:root=Brightness
prefs:root=Bluetooth
prefs:root=General&path=DATE_AND_TIME
prefs:root=FACETIME
prefs:root=General
prefs:root=General&path=Keyboard
prefs:root=CASTLE
prefs:root=CASTLE&path=STORAGE_AND_BACKUP
prefs:root=General&path=INTERNATIONAL
prefs:root=LOCATION_SERVICES
prefs:root=ACCOUNT_SETTINGS
prefs:root=MUSIC
prefs:root=MUSIC&path=EQ
prefs:root=MUSIC&path=VolumeLimit
prefs:root=General&path=Network
prefs:root=NIKE_PLUS_IPOD
prefs:root=NOTES
prefs:root=NOTIFICATIONS_ID
prefs:root=Phone
prefs:root=Photos
prefs:root=General&path=ManagedConfigurationList
prefs:root=General&path=Reset
prefs:root=Sounds&path=Ringtone
prefs:root=Safari
prefs:root=General&path=Assistant
prefs:root=Sounds
prefs:root=General&path=SOFTWARE_UPDATE_LINK
prefs:root=STORE
prefs:root=TWITTER
prefs:root=FACEBOOK
prefs:root=General&path=USAGE prefs:root=VIDEO
prefs:root=General&path=Network/VPN
prefs:root=Wallpaper
prefs:root=WIFI
prefs:root=INTERNET_TETHERING
prefs:root=Phone&path=Blocked
prefs:root=DO_NOT_DISTURB
30、监听scrollView是否滚动到了顶部／底部
-(void)scrollViewDidScroll: (UIScrollView*)scrollView
{
float scrollViewHeight = scrollView.frame.size.height;
float scrollContentSizeHeight = scrollView.contentSize.height;
float scrollOffset = scrollView.contentOffset.y;
if (scrollOffset == 0)
{
// 滚动到了顶部
}
else if (scrollOffset + scrollViewHeight == scrollContentSizeHeight)
{
// 滚动到了底部
}
}
31、从导航控制器中删除某个控制器
// 方法一、知道这个控制器所处的导航控制器下标
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
[navigationArray removeObjectAtIndex: 2];
self.navigationController.viewControllers = navigationArray;
// 方法二、知道具体是哪个控制器
NSArray* tempVCA = [self.navigationController viewControllers];
for(UIViewController *tempVC in tempVCA)
{
if([tempVC isKindOfClass:[urViewControllerClass class]])
{
[tempVC removeFromParentViewController];
}
}
32、触摸事件类型
UIControlEventTouchCancel 取消控件当前触发的事件
UIControlEventTouchDown 点按下去的事件
UIControlEventTouchDownRepeat 重复的触动事件
UIControlEventTouchDragEnter 手指被拖动到控件的边界的事件
UIControlEventTouchDragExit 一个手指从控件内拖到外界的事件
UIControlEventTouchDragInside 手指在控件的边界内拖动的事件
UIControlEventTouchDragOutside 手指在控件边界之外被拖动的事件
UIControlEventTouchUpInside 手指处于控制范围内的触摸事件
UIControlEventTouchUpOutside 手指超出控制范围的控制中的触摸事件
33、比较两个UIImage是否相等
- (BOOL)image:(UIImage *)image1 isEqualTo:(UIImage *)image2
{
NSData *data1 = UIImagePNGRepresentation(image1);
NSData *data2 = UIImagePNGRepresentation(image2);
return [data1 isEqual:data2];
}
34、代码方式调整屏幕亮度
// brightness属性值在0-1之间，0代表最小亮度，1代表最大亮度
[[UIScreen mainScreen] setBrightness:0.5];
35、根据经纬度获取城市等信息
// 创建经纬度
CLLocation *location = [[CLLocation alloc] initWithLatitude:latitude longitude:longitude];
//创建一个译码器
CLGeocoder *cLGeocoder = [[CLGeocoder alloc] init];
[cLGeocoder reverseGeocodeLocation:userLocation completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *place = [placemarks objectAtIndex:0];
// 位置名
NSLog(@"name,%@",place.name);
// 街道
NSLog(@"thoroughfare,%@",place.thoroughfare);
// 子街道
NSLog(@"subThoroughfare,%@",place.subThoroughfare);
// 市
NSLog(@"locality,%@",place.locality);
// 区
NSLog(@"subLocality,%@",place.subLocality);
// 国家
NSLog(@"country,%@",place.country);
}
}];
36、如何防止添加多个NSNotification观察者？
// 解决方案就是添加观察者之前先移除下这个观察者
[[NSNotificationCenter defaultCenter] removeObserver:observer name:name object:object];
[[NSNotificationCenter defaultCenter] addObserver:observer selector:selector name:name object:object];
37、处理字符串，使其首字母大写
NSString *str = @"abcdefghijklmn";
NSString *resultStr;
if (str && str.length > 0) {
resultStr = [str stringByReplacingCharactersInRange:NSMakeRange(0,1) withString:[[str substringToIndex:1] capitalizedString]];
}
NSLog(@"%@", resultStr);
38、获取字符串中的数字
- (NSString *)getNumberFromStr:(NSString *)str
{
NSCharacterSet *nonDigitCharacterSet = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
return [[str componentsSeparatedByCharactersInSet:nonDigitCharacterSet] componentsJoinedByString:@""];
}
39、为UIView的某个方向添加边框
- (void)wzb_addBorder:(WZBBorderDirectionType)direction color:(UIColor *)color width:(CGFloat)width
{
CALayer *border = [CALayer layer];
border.backgroundColor = color.CGColor;
switch (direction) {
case WZBBorderDirectionTop:
{
border.frame = CGRectMake(0.0f, 0.0f, self.bounds.size.width, width);
}
break;
case WZBBorderDirectionLeft:
{
border.frame = CGRectMake(0.0f, 0.0f, width, self.bounds.size.height);
}
break;
case WZBBorderDirectionBottom:
{
border.frame = CGRectMake(0.0f, self.bounds.size.height - width, self.bounds.size.width, width);
}
break;
case WZBBorderDirectionRight:
{
border.frame = CGRectMake(self.bounds.size.width - width, 0, width, self.bounds.size.height);
}
break;
default:
break;
}
[self.layer addSublayer:border];
}
40、自动搜索功能，用户连续输入的时候不搜索，用户停止输入的时候自动搜索(我这里设置的是0.5s，可根据需求更改)
// 输入框文字改变的时候调用
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
// 先取消调用搜索方法
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(searchNewResult) object:nil];
// 0.5秒后调用搜索方法
[self performSelector:@selector(searchNewResult) withObject:nil afterDelay:0.5];
}
41、修改UISearchBar的占位文字颜色
// 方法一（推荐使用）
UITextField *searchField = [searchBar valueForKey:@"_searchField"];
[searchField setValue:[UIColor blueColor] forKeyPath:@"_placeholderLabel.textColor"];
// 方法二（已过期）
[[UILabel appearanceWhenContainedIn:[UISearchBar class], nil] setTextColor:[UIColor redColor]];
// 方法三（已过期）
NSDictionary *placeholderAttributes = @{NSForegroundColorAttributeName : [UIColor redColor], NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue" size:15],};
NSAttributedString *attributedPlaceholder = [[NSAttributedString alloc] initWithString:searchBar.placeholder attributes:placeholderAttributes];
[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setAttributedPlaceholder:attributedPlaceholder];
42、动画执行removeFromSuperview
[UIView animateWithDuration:0.2
animations:^{
view.alpha = 0.0f;
} completion:^(BOOL finished){
[view removeFromSuperview];
}];
43、修改image颜色
UIImage *image = [UIImage imageNamed:@"test"];
imageView.image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
CGRect rect = CGRectMake(0, 0, image.size.width, image.size.height);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextClipToMask(context, rect, image.CGImage);
CGContextSetFillColorWithColor(context, [[UIColor redColor] CGColor]);
CGContextFillRect(context, rect);
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIImage *flippedImage = [UIImage imageWithCGImage:img.CGImage scale:1.0 orientation: UIImageOrientationDownMirrored];
imageView.image = flippedImage;
44、利用runtime获取一个类所有属性
- (NSArray *)allPropertyNames:(Class)aClass
{
unsigned count;
objc_property_t *properties = class_copyPropertyList(aClass, &count);
NSMutableArray *rv = [NSMutableArray array];
unsigned i;
for (i = 0; i < count; i++)
{
objc_property_t property = properties[i];
NSString *name = [NSString stringWithUTF8String:property_getName(property)];
[rv addObject:name];
}
free(properties);
return rv;
}
45、让push跳转动画像modal跳转动画那样效果(从下往上推上来)
- (void)push
{
TestViewController *vc = [[TestViewController alloc] init];
vc.view.backgroundColor = [UIColor redColor];
CATransition* transition = [CATransition animation];
transition.duration = 0.4f;
transition.type = kCATransitionMoveIn;
transition.subtype = kCATransitionFromTop;
[self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
[self.navigationController pushViewController:vc animated:NO];
}
- (void)pop
{
CATransition* transition = [CATransition animation];
transition.duration = 0.4f;
transition.type = kCATransitionReveal;
transition.subtype = kCATransitionFromBottom;
[self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
[self.navigationController popViewControllerAnimated:NO];
}
46.cell默认选中方法
[self selectIndexPath:[LrdIndexPath indexPathWithColumn:0 row:0]];
47.实现代码只让执行一次
static dispatch_once_t hanwanjie;
dispatch_once(&hanwanjie, ^{
NSLog(@"123456789");
});
48.数组用系统方法compare做字母的简单排序
NSArray *oldArray = @[@"bac",@"bzd",@"azc",@"azz"];
NSArray *newArray = [oldArray sortedArrayUsingSelector:@selector(compare:)];
NSLog(@"new array = %@",newArray);
NSMutableArray *pArrayS = [NSMutableArray arrayWithCapacity:0];//根据下标开始
49.快速遍历方法
for (MJAppMapListModel*model in array) {
NSLog(@"1 =%@ 2 =%@ 3 =%@ 4 =%@ 5 =%@ 6 =%@",model.id,model.menuTitle,model.menuTip,model.urlInterface,model.menuIconPath,model.urlParams);
}
for (NSString *categoryId in sortedArray) {
NSLog(@"[dict objectForKey:categoryId] === %@",[dict objectForKey:categoryId]);
}
for (NSString *str in [dict allKeys]) {
NSLog(@"key == %@",str);
}
50.//在主线程和子线程延迟执行
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self delayDo:@"GCD"];
});
//在子线程延迟执行
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5 * NSEC_PER_SEC)), dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
[self delayDo:@"Global-GCD"];
});
51.//获取cell上按钮的下标
[cell.ButtonIphone addTarget:self action:@selector(btAction:) forControlEvents:UIControlEventTouchUpInside];
-(void)btAction:(UIButton*)btn
{
CGPoint point = btn.center;
point = [self.tableView convertPoint:point fromView:btn.superview];
NSIndexPath* indexpath = [self.tableView indexPathForRowAtPoint:point];
NSLog(@"dhajhdjashdjashdj == %@",indexpath);
NSLog(@"我是你点击section第 %ld行",(long)[indexpath section]);
NSLog(@"我是你点击row第 %ld行",(long)[indexpath row]);
}
52.//过滤为空的cell
_tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
53.设置文字和图片一起的使用(富文本)
- (NSAttributedString *)stringWithUIImage:(NSString *) contentStr {
// 创建一个富文本
NSMutableAttributedString * attriStr = [[NSMutableAttributedString alloc] initWithString:contentStr];
//// 修改富文本中的不同文字的样式
//[attriStr addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, 5)];
//[attriStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:20] range:NSMakeRange(0, 5)];
/**
添加图片到指定的位置
*/
//NSTextAttachment *attchImage = [[NSTextAttachment alloc] init];
//// 表情图片
//attchImage.image = [UIImage imageNamed:@"jiedu"];
//// 设置图片大小
//attchImage.bounds = CGRectMake(0, 0, 40, 15);
//NSAttributedString *stringImage = [NSAttributedString attributedStringWithAttachment:attchImage];
//[attriStr insertAttributedString:stringImage atIndex:2];
// 设置数字为红色
/*
[attriStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(5, 9)];
[attriStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:NSMakeRange(5, 9)];
*/
//NSDictionary * attrDict = @{ NSFontAttributeName: [UIFont fontWithName: @"Zapfino" size: 15],
// NSForegroundColorAttributeName: [UIColor blueColor] };
//创建 NSAttributedString 并赋值
//_label02.attributedText = [[NSAttributedString alloc] initWithString: originStr attributes: attrDict];
//NSDictionary * attriBute = @{NSForegroundColorAttributeName:[UIColor redColor],NSFontAttributeName:[UIFont systemFontOfSize:30]};
//[attriStr addAttributes:attriBute range:NSMakeRange(5, 9)];
// 添加表情到最后一位
NSTextAttachment *attch = [[NSTextAttachment alloc] init];
// 表情图片
attch.image = [UIImage imageNamed:@"bg_update_tips"];
// 设置图片大小
attch.bounds = CGRectMake(0, 0, 40, 15);
// 创建带有图片的富文本
NSAttributedString *string = [NSAttributedString attributedStringWithAttachment:attch];
[attriStr appendAttributedString:string];
return attriStr;
}
54.//判断数组包含有没有字符串
if ([_MutaArrayAAA containsObject:cell.Label.text])
55.//删除数组包含另外对象属性值
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name = %@",p.name];
NSArray *filteredArray = [self.SaveTheData filteredArrayUsingPredicate:predicate];
[self.SaveTheData removeObjectsInArray:filteredArray];
56.监听UITableView的上下拉
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if(scrollView.contentOffset.y < 0){
NSLog(@"top*****下");
}else if(scrollView.contentOffset.y > 0){
NSLog(@"bottom*****上");
}
}
57.//直接返回根目录
[self.presentingViewController.presentingViewController dismissViewControllerAnimated:NO completion:nil];
[self.navigationController popToRootViewControllerAnimated:YES]; 返回上一级
//返回指定界面
1.int INPAGE =(int)self. navigationController.viewControllers.count-2;
TheEditorViewController*vc = self.navigationController.viewControllers[INPAGE];
[self.navigationController popToViewController:vc animated:YES];
2.CustomerContactViewController * getmoney = nil;
for (UIViewController * VC in self.navigationController.viewControllers) {
if ([VC isKindOfClass:[CustomerContactViewController class]]) {
getmoney = (CustomerContactViewController *)VC;
}
}
[self.navigationController popToViewController:getmoney animated:YES];
58.APP启动界面的动画
UIImageView *welcome = [[UIImageView alloc]initWithFrame:_window.bounds];
[welcome setImage:[UIImage imageNamed:@"HJLaunchImage"]];
//把背景图放在最上层
[_window addSubview:welcome];
[_window bringSubviewToFront:welcome];
welcome.alpha = 0.99;//这里alpha的值和下面alpha的值不能设置为相同的，否则动画相当于瞬间执行完，启动页之后动画瞬间消失。这里alpha设为0.99，动画就不会有一闪而过的效果，而是一种类似于静态背景的效果。设为0，动画就相当于是淡入的效果了。
[UIView animateWithDuration:1.0f delay:0.0f options:UIViewAnimationOptionTransitionCrossDissolve animations:^{
CGRect frame = welcome.frame;
frame.size.width = _window.size.width*1.3;
frame.size.height = _window.size.height*1.3;
welcome.frame = frame;
welcome.center = _window.center;
welcome.alpha = 0;
} completion:^(BOOL finished) {
[welcome removeFromSuperview];
}];
59.数组转字典化
for(NSMutableDictionary *dic in responseObject[@"data"])
{
vc.remindTapge = 5;
vc.dicData =dic;
}
60.数组字符串
NSMutableString *detailAddress = [[NSMutableString alloc] init];
if (self.index1 < self.provinceArr.count) {
NSString *firstAddress = self.provinceArr[self.index1];
[detailAddress appendString:firstAddress];//拼接字符串
}
61.//计算时间差0年0月1日1小时51分钟55秒
// 1.确定时间
NSString *time1 = @"2015-09-8 10:18:15";
NSString *time2 = @"2015-09-9 12:10:10";
// 2.将时间转换为date
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";
NSDate *date1 = [formatter dateFromString:time1];
NSDate *date2 = [formatter dateFromString:time2];
// 3.创建日历
NSCalendar *calendar = [NSCalendar currentCalendar];
NSCalendarUnit type = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
// 4.利用日历对象比较两个时间的差值
NSDateComponents *cmps = [calendar components:type fromDate:date1 toDate:date2 options:0];
// 5.输出结果
NSLog(@"两个时间相差%ld年%ld月%ld日%ld小时%ld分钟%ld秒", cmps.year, cmps.month, cmps.day, cmps.hour, cmps.minute, cmps.second);
62.//数组保存对象的方法
[self.SaveTheData addObject: @{
@"name":p.name,
@"phoneNumber":phoneNumber
}];
63.//关闭WebView播放音频或者视频退出时停止音频后台播放
[self.WKWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"about:blank"]]];
64.//监听原生点击返回按钮
-(void)viewDidDisappear:(BOOL)animated
{
}
65.//UITableView和UICollectionView获取已分配的单元格cell
//UICollectionView
HomeViewCollectionViewCell * cell = (HomeViewCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
//UITableView
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
NSString *resuID =[NSString stringWithFormat:@"inputCell_%ld",(long)indexPath.row];
InputTableViewCell *inpCell = [self.tableView dequeueReusableCellWithIdentifier:resuID];
66.在Appdelegate.m中的didFinishLaunchingWithOptions
方法中添加如下代码，就全局搞定了！
if (@available(ios 11.0,*))
{
UIScrollView.appearance.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
UITableView.appearance.estimatedRowHeight = 0;
UITableView.appearance.estimatedSectionFooterHeight = 0;
UITableView.appearance.estimatedSectionHeaderHeight = 0;
}
67.数据存储3种方式：
1.writeToFile
//1.1 你需要获取路径
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
// .XXX 尾椎 只是决定 以哪中方式查看数据, 对存入的数据本身没有影响
NSString *fiflePath = [path stringByAppendingPathComponent:@"data.XXX"];
//1.2 写数据
NSArray *dataArray = @[@"1",@"2",@"3",@"霜4"]; //atomically 原子性的,数据安全的, 百分之九十九都是YES
[dataArray writeToFile:fiflePath atomically:YES];
//1.读取路径
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *fiflePath = [path stringByAppendingPathComponent:@"data.XXX"];
//2.取出来
NSArray *dataArray = [NSArray arrayWithContentsOfFile:fiflePath];
2.userDefault(偏好设置)
//1. 获取系统的偏好设置对象
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
//2. 存储数据
[defaults setObject:@"小明" forKey:@"name"];
[defaults setInteger:100 forKey:@"age"];
[defaults setBool:NO forKey:@"isTrue"];
//3.立即同步: 强制写入
[defaults synchronize];
//1.获取读取数据到偏好设置的路径
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
//2.读取数据
NSString *name = [defaults objectForKey:@"name"];
NSInteger age = [defaults integerForKey:@"age"];
BOOL isTrue = [defaults boolForKey:@"isTrue"];
3.归档
//1.文件路径
NSString *filePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"PsersonData.plist"];
//1. 有个对象
Pserson *pser = [[Pserson alloc]init];
pser.name = @"小小麦";
pser.age = 12;
pser.sex = YES;
//2.存储 归档
[NSKeyedArchiver archiveRootObject:p toFile:filePath];
//读取数据反归档 ,解档
NSString *filePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"data.plist"];
CZPserson *p = [NSKeyedUnarchiver unarchiveObjectWithFile:filePath];
68.动画：
1.基础动画:
//基础动画(缩放)
MTBasicAnimation* basic1 = [MTBasicAnimation animationWithKeyPath:@"transform.scale"];
basic1.toValue = @(0.1);
//基础动画(旋转)
MTBasicAnimation* basic2 = [MTBasicAnimation animationWithKeyPath:@"transform.rotation"];
basic2.toValue = @(M_PI*2);
2.关键帧动画:
//创建路径
UIBezierPath* path = [UIBezierPath bezierPathWithArcCenter:self.view.center radius:150 startAngle:0 endAngle:M_PI*2 clockwise:YES];
MTKeyframeAnimation* key = [MTKeyframeAnimation animationWithKeyPath:@"position"];
key.path = path.CGPath;
3.转场动画:
//3.添加转场动画
MTTransition *sition = [MTTransition animation];
//设置属性
//样式
sition.type = kMTTransitionMoveIn;
//方向
sition.subtype = kMTTransitionFromBottom;
//添加动画
[self.myImageView.layer addAnimation:sition forKey:nil];
4.组动画:
//创建路径
UIBezierPath* path = [UIBezierPath bezierPathWithArcCenter:self.view.center radius:150 startAngle:0 endAngle:M_PI*2 clockwise:YES];
//创建组动画
MTAnimationGroup* group = [MTAnimationGroup animation];
//创建动画1,关键帧动画
MTKeyframeAnimation* key = [MTKeyframeAnimation animationWithKeyPath:@"position"];
key.path = path.CGPath;
//创建动画2,基础动画(缩放)
MTBasicAnimation* basic1 = [MTBasicAnimation animationWithKeyPath:@"transform.scale"];
basic1.toValue = @(0.1);
//创建动画3,基础动画(旋转)
MTBasicAnimation* basic2 = [MTBasicAnimation animationWithKeyPath:@"transform.rotation"];
basic2.toValue = @(M_PI*2);
//设置组动画
group.animations = @[key,basic1,basic2];
group.duration = 2.0;
group.repeatCount = 10;
[self.myLayer addAnimation:group forKey:nil];
69.裁剪图片
//1.裁剪区域
CGRect rect = CGRectMake(x, y, w, h);
// 2.调用系统的裁剪方法裁剪图片
/* 参数: 1.被裁剪的大图 CG类型 2.需要裁剪的区域 */
CGImageRef imageRef = CGImageCreateWithImageInRect(image.CGImage, rect);
// 转换成UIImage
UIImage *img = [UIImage imageWithCGImage:imageRef];
// 释放imageRef
CGImageRelease(imageRef);
70.传递事件,判断当前点是否在一个区域内
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event{
// 1.描述一下按钮上部分的区域
CGRect rect = CGRectMake(0, 0, self.bounds.size.width, 100);
// 2.判断当前点击的点在不在上部分(如果不在,就直接返回nil)
if (!CGRectContainsPoint(rect, point)) {
return nil;
}
// 3.继续传递事件
return [super hitTest:point withEvent:event];
}
71.H5的WebView链接加载的url中文和特殊字符转码
- (NSString *)generateUrl:(NSString *)url{
/** 第一个参数:NULL 第二个参数:C语言的字符串 第三个参数:NULL 第四个参数:要转义的字符串,不要乱转 第五个参数:编码 */
NSString *encodedString = (__bridge_transfer NSString *)CFURLCreateStringByAddingPercentEscapes(
NULL,(__bridge CFStringRef)url,NULL,CFSTR("+"),CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));
return encodedString;
}
72.数据加密和解压缩文件
1.base64加密
//加密：
- (NSString *)base64Encode:(NSString *)originalString{
//1.将originalString转成二进制
NSData *data = [originalString dataUsingEncoding:NSUTF8StringEncoding];
//2.需要将二进制转成Base64加密之后的字符串
return [data base64EncodedStringWithOptions:0];
}
//解密：
- (NSString *)base64Decode:(NSString *)base64String{
//1.Base64加密之后的字符串转成 NSData
NSData *data = [[NSData alloc] initWithBase64EncodedString:base64String options:0];
//2.将二进制转在字符串
NSString *originalString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
return originalString;
}
1.解压缩文件
//下载完毕解压到当前文件夹
[SSZipArchive unzipFileAtPath:location.path toDestination:self.destinationPath uniqueId:nil];
73.计算磁盘大小
1.磁盘总空间大小
+ (CGFloat)diskOfAllSizeMBytes{
CGFloat size = 0.0;
NSError *error;
NSDictionary *dic = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
if (error) {
#ifdef DEBUG
NSLog(@"error: %@", error.localizedDescription);
#endif
}else{
NSNumber *number = [dic objectForKey:NSFileSystemSize];
size = [number floatValue]/1024/1024;
}
return size;
}
2.磁盘可用空间大小
+ (CGFloat)diskOfFreeSizeMBytes{
CGFloat size = 0.0;
NSError *error;
NSDictionary *dic = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
if (error) {
#ifdef DEBUG
NSLog(@"error: %@", error.localizedDescription);
#endif
}else{
NSNumber *number = [dic objectForKey:NSFileSystemFreeSize];
size = [number floatValue]/1024/1024;
}
return size;
}
74.信息验证
1.判断手机号码格式是否正确，利用正则表达式验证
+ (BOOL)isMobileNumber:(NSString *)mobileNum{
if (mobileNum.length != 11) {
return NO;
}
/** * 手机号码:
* 13[0-9], 14[5,7], 15[0, 1, 2, 3, 5, 6, 7, 8, 9], 17[6, 7, 8], 18[0-9], 170[0-9]
* 移动号段:
134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705
* 联通号段: 130,131,132,155,156,185,186,145,176,1709
* 电信号段: 133,153,180,181,189,177,1700 *
/ NSString *MOBILE = @"^1(3[0-9]|4[57]|5[0-35-9]|8[0-9]|70)\d{8}$";
/**
* 中国移动：China Mobile * 134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705 */
NSString *CM = @"(^1(3[4-9]|4[7]|5[0-27-9]|7[8]|8[2-478])\d{8}$)|(^1705\d{7}$)";
/** * 中国联通：China Unicom * 130,131,132,155,156,185,186,145,176,1709 */
NSString *CU = @"(^1(3[0-2]|4[5]|5[56]|7[6]|8[56])\d{8}$)|(^1709\d{7}$)";
/**
* 中国电信：China Telecom * 133,153,180,181,189,177,1700 */ NSString *CT = @"(^1(33|53|77|8[019])\d{8}$)|(^1700\d{7}$)";
NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];
NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];
NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];
if (([regextestmobile evaluateWithObject:mobileNum] == YES) || ([regextestcm evaluateWithObject:mobileNum] == YES) || ([regextestct evaluateWithObject:mobileNum] == YES) || ([regextestcu evaluateWithObject:mobileNum] == YES))
{
return YES;
} else {
return NO;
}
}
2. 判断邮箱格式是否正确，利用正则表达式验证
+ (BOOL)isAvailableEmail:(NSString *)email{
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:email];
}
3. 判断字符串中是否含有空格
+ (BOOL)isHaveSpaceInString:(NSString *)string{
NSRange _range = [string rangeOfString:@" "];
if (_range.location != NSNotFound) {
return YES;
}else {
return NO;
}
}
4. 判断字符串中是否含有中文
+ (BOOL)isHaveChineseInString:(NSString *)string{
for(NSInteger i = 0; i < [string length]; i++){
int a = [string characterAtIndex:i];
if (a > 0x4e00 && a < 0x9fff) {
return YES;
}
}
return NO;
}
5.判断身份证格式
+ (BOOL)checkIdentityCardNo:(NSString*)value {
value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
NSInteger length =0;
if (!value) {
return NO;
}else {
length = value.length;
if (length !=15 && length !=18) {
return NO;
}
}
// 省份代码
NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41", @"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];
NSString *valueStart2 = [value substringToIndex:2];
BOOL areaFlag =NO;
for (NSString *areaCode in areasArray) {
if ([areaCode isEqualToString:valueStart2]) {
areaFlag =YES;
break;
}
}
if (!areaFlag) {
return false;
}
NSRegularExpression *regularExpression;
NSUInteger numberofMatch;
NSInteger year =0;
switch (length) {
case 15:
year = [[value substringWithRange:NSMakeRange(6,2)] integerValue] +1900;
if (year %4 ==0 || (year 0 ==0 && year %4 ==0)) {
regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
options:NSRegularExpressionCaseInsensitive
error:nil];//测试出生日期的合法性
}else {
regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
options:NSRegularExpressionCaseInsensitive
error:nil];//测试出生日期的合法性
}
numberofMatch = [regularExpression numberOfMatchesInString:value options:NSMatchingReportProgress
range:NSMakeRange(0, value.length)];
if(numberofMatch >0) {
return YES;
}else {
return NO;
}
case 18:
year = [value substringWithRange:NSMakeRange(6,4)].intValue;
if (year %4 ==0 || (year 0 ==0 && year %4 ==0)) {
regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
}else {
regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
}
numberofMatch = [regularExpression numberOfMatchesInString:value options:NSMatchingReportProgress range:NSMakeRange(0, value.length)];
if(numberofMatch >0) {
int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3;
int Y = S ;
NSString *M =@"F";
NSString *JYM =@"10X98765432";
M = [JYM substringWithRange:NSMakeRange(Y,1)];// 判断校验位
if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
return YES;// 检测ID的校验位
}else {
return NO;
}
}else {
return NO;
}
default:
return false;
}
}
75.缓存功能的一些事
//缓存路径
#define CacheFilePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject]
//缓存计算
//转换B/KB/MB/GB
+(NSString *)SetCacheSize:(unsigned long long)fileSize{
// 单位
double unit = 1000.0;
// 标签文字
NSString *fileSizeText = nil;
if (fileSize >= pow(unit, 3)) {
// fileSize >= 1GB
fileSizeText = [NSString stringWithFormat:@"%.2fGB", fileSize / pow(unit, 3)];
} else if (fileSize >= pow(unit, 2)) {
// fileSize >= 1MB
fileSizeText = [NSString stringWithFormat:@"%.2fMB", fileSize / pow(unit, 2)];
} else if (fileSize >= unit) {
// fileSize >= 1KB
fileSizeText = [NSString stringWithFormat:@"%.2fKB", fileSize / unit];
} else { // fileSize < 1KB
fileSizeText = [NSString stringWithFormat:@"%zdB", fileSize];
} return fileSizeText;
}
//清空缓存
+(BOOL)CleanCacheFilePath{
//拿到path路径的下一级目录的子文件夹
NSArray *subPathArr = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:CacheFilePath error:nil];
NSString *filePath = nil;
NSError *error = nil;
for (NSString *subPath in subPathArr) {
filePath = [CacheFilePath stringByAppendingPathComponent:subPath];
//删除子文件夹 [[NSFileManager defaultManager] removeItemAtPath:filePath error:&error];
if (error) {
NSLog(@"%@",error);
continue;
}
}
return YES;
}
//SDWebImage清理缓存
// 清理内存
[[SDImageCache sharedImageCache] clearMemory];
// 清理webview 缓存
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [storage cookies]) {
[storage deleteCookie:cookie];
}
NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
[config.URLCache removeAllCachedResponses];
[[NSURLCache sharedURLCache] removeAllCachedResponses];
// 清理硬盘
[[SDImageCache sharedImageCache] clearDiskOnCompletion:^{
//[MBProgressHUD hideAllHUDsForView:self.view animated:YES];
//[self.tableView reloadData];
}];
后续会继续添加项目会用到的方法总结..........
