常见iOS Bug

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常见bug 解决文档1

1 xib 图片错位 laoutsubview 去掉对钩

调整对其方式

2 判断登陆注册的用户名密码使用正则表达式

//判断石否为数字或字母

- (BOOL)validatePassword:(NSString *)email {

NSString *emailRegex = @"^[A-Za-z0-9]+$";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

return [emailTest evaluateWithObject:email];

}

//判断是否为手机号

- (BOOL)validatePhone:(NSString *)email {

NSString *emailRegex = @"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

return [emailTest evaluateWithObject:email];

}

//判断是否为邮箱

- (BOOL)validateEmail:(NSString *)email {

NSString *emailRegex = @"^\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

return [emailTest evaluateWithObject:email];

}

assihttprequest

http://www.cnblogs.com/dotey/archive/2011/05/10/2041966.html

http://www.cfanz.cn/index.php?c=article&a=read&id=70754

3 base64 冲突

删除掉 Other Linker Flag 的 -all_load 就可以解决静态库冲突的问题，

4 有的是库不识别，可能是因为两个版本，一个模拟器，一个真机，调整一下位置，

当前用哪个就把哪一个放到上面，再运行就是别了

5 GPS定位不准确，我们可以用地图定位和代替，简单误差小

#pragma mark - 获取经纬度和城市

-(void)getCurrentLocation

{

_mapView = [[MAMapViewalloc] init];

[_mapView setHidden:YES];

_mapView.showsUserLocation =YES;

_mapView.delegate = self;

}

- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation {

_currentLocation = userLocation.location;

_lon = _currentLocation.coordinate.longitude;

_lat = _currentLocation.coordinate.latitude;

_tableObject_dis.lon = _lon;

_tableObject_dis.lat = _lat;

_placemark = nil;

if ([[[UIDevicecurrentDevice] systemVersion]floatValue] >= 5.0) {

CLGeocoder *geocoder = [[CLGeocoder alloc] init];

[geocoder reverseGeocodeLocation:_currentLocation completionHandler:^(NSArray *placemarks, NSError*error){

if (!error)

{

_placemark = [placemarks objectAtIndex:0];

if (_placemark.administrativeArea)

{

NSArray *stateName = [_placemark.administrativeArea componentsSeparatedByString:@"市"];

_currentState =[stateName objectAtIndex:0] ;

mapView.showsUserLocation = NO;

}

}];

[geocoder release];

}

6 自定义一个并且组装一个自己的alertView

iOS7 不允许自定义uialertview

7 设备 4 or 5 区分长度 is4Inch

//判断是否 Retina屏、设备是否iphone 5、是否是iPad

#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO)

#define is4Inch ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)

#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

7 系统版本 6 or 7 区分 20 像素

if (!([[UIDevicecurrentDevice] systemVersion].floatValue>=7.0))

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