// 拨打电话

+ (void)callTel:(NSString*)tel{

[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:[NSStringstringWithFormat:@"tel://%@",tel]]];

}

// 计算缓存大小

+(float)showFilePathSize{

NSString* cachPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)firstObject];

NSFileManager* manager = [NSFileManagerdefaultManager];

if(![managerfileExistsAtPath:cachPath])return0;

NSEnumerator*childFilesEnumerator = [[managersubpathsAtPath:cachPath]objectEnumerator];

NSString* fileName;

longlongfolderSize =0;

while((fileName = [childFilesEnumeratornextObject]) !=nil){

NSString* fileAbsolutePath = [cachPathstringByAppendingPathComponent:fileName];

if([managerfileExistsAtPath:fileAbsolutePath]) {

folderSize += [[managerattributesOfItemAtPath:fileAbsolutePatherror:nil]fileSize];}else{

folderSize =0;}}

returnfolderSize/(1024.0*1024.0);}

// 清理缓存

+ (void)clearFile :(UITableView*)tabView{

NSString* cachPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)firstObject];

NSArray* files = [[NSFileManagerdefaultManager]subpathsAtPath:cachPath];

NSLog(@"cachpath = %@", cachPath);

for(NSString* pinfiles) {

NSError* error =nil;

NSString* path = [cachPathstringByAppendingPathComponent:p];

if([[NSFileManagerdefaultManager]fileExistsAtPath:path]) {

[[NSFileManagerdefaultManager]removeItemAtPath:patherror:&error];

}}[tabViewreloadData];}

// 计算图片的宽高比

+ (float) showImageRatio :(NSString*) imagePath{

CGFloatratio ;

NSURL*imageFileURL = [NSURLURLWithString:imagePath];

CGImageSourceRefimageSource =CGImageSourceCreateWithURL((__bridgeCFURLRef)imageFileURL,NULL);

if(imageSource) {

NSDictionary* options =@{(NSString*)kCGImageSourceShouldCache:@NO};

CFDictionaryRefimageProperties =CGImageSourceCopyPropertiesAtIndex(imageSource,0, (__bridgeCFDictionaryRef)options);

if(imageProperties) {

NSDictionary*nsdic = (__bridge_transferNSDictionary*)imageProperties;

NSLog(@"properties: %@", [nsdicvalueForKey:@"PixelHeight"]);

ratio = ([[nsdicvalueForKey:@"PixelWidth"]floatValue]/[[nsdicvalueForKey:@"PixelHeight"]floatValue]);

//CFRelease(imageProperties);}

}else{NSLog(@" Error loading image");

}returnratio;}

// 设置圆形视图

+ (void)setRound:(UIView*)view{

view.layer.cornerRadius= view.bounds.size.width*0.5;

view.layer.masksToBounds=YES;

}

// 获取设备型号

+ (NSString*)deviceString

{

//需要#import "sys/utsname.h"

structutsnamesystemInfo;

uname(&systemInfo);

NSString*deviceString = [NSStringstringWithCString:systemInfo.machineencoding:NSUTF8StringEncoding];

NSLog(@"设备号是%@",deviceString);

if([deviceStringisEqualToString:@"iPhone1,1"])return@"iPhone 2G (A1203)";

if([deviceStringisEqualToString:@"iPhone1,2"])return@"iPhone 3G (A1241/A1324)";

if([deviceStringisEqualToString:@"iPhone2,1"])return@"iPhone 3GS (A1303/A1325)";

if([deviceStringisEqualToString:@"iPhone3,1"])return@"iPhone 4 (A1332)";

if([deviceStringisEqualToString:@"iPhone3,2"])return@"iPhone 4 (A1332)";

if([deviceStringisEqualToString:@"iPhone3,3"])return@"iPhone 4 (A1349)";

if([deviceStringisEqualToString:@"iPhone4,1"])return@"iPhone 4S (A1387/A1431)";

if([deviceStringisEqualToString:@"iPhone5,1"])return@"iPhone 5 (A1428)";

if([deviceStringisEqualToString:@"iPhone5,2"])return@"iPhone 5 (A1429/A1442)";

if([deviceStringisEqualToString:@"iPhone5,3"])return@"iPhone 5c (A1456/A1532)";

if([deviceStringisEqualToString:@"iPhone5,4"])return@"iPhone 5c (A1507/A1516/A1526/A1529)";

if([deviceStringisEqualToString:@"iPhone6,1"])return@"iPhone 5s (A1453/A1533)";

if([deviceStringisEqualToString:@"iPhone6,2"])return@"iPhone 5s (A1457/A1518/A1528/A1530)";

if([deviceStringisEqualToString:@"iPhone7,1"])return@"iPhone 6 Plus (A1522/A1524)";

if([deviceStringisEqualToString:@"iPhone7,2"])return@"iPhone 6 (A1549/A1586)";

if([deviceStringisEqualToString:@"iPhone8,1"])return@"iPhone 6S";

if([deviceStringisEqualToString:@"iPhone8,2"])return@"iPhone 6S Plus";

if([deviceStringisEqualToString:@"iPhone9,1"])return@"iPhone 7 ";

if([deviceStringisEqualToString:@"iPhone9,2"])return@"iPhone 7 Plus";

if([deviceStringisEqualToString:@"iPod1,1"])return@"iPod Touch 1G (A1213)";

if([deviceStringisEqualToString:@"iPod2,1"])return@"iPod Touch 2G (A1288)";

if([deviceStringisEqualToString:@"iPod3,1"])return@"iPod Touch 3G (A1318)";

if([deviceStringisEqualToString:@"iPod4,1"])return@"iPod Touch 4G (A1367)";

if([deviceStringisEqualToString:@"iPod5,1"])return@"iPod Touch 5G (A1421/A1509)";

if([deviceStringisEqualToString:@"iPad1,1"])return@"iPad 1G (A1219/A1337)";

if([deviceStringisEqualToString:@"iPad2,1"])return@"iPad 2 (A1395)";

if([deviceStringisEqualToString:@"iPad2,2"])return@"iPad 2 (A1396)";

if([deviceStringisEqualToString:@"iPad2,3"])return@"iPad 2 (A1397)";

if([deviceStringisEqualToString:@"iPad2,4"])return@"iPad 2 (A1395+New Chip)";

if([deviceStringisEqualToString:@"iPad2,5"])return@"iPad Mini 1G (A1432)";

if([deviceStringisEqualToString:@"iPad2,6"])return@"iPad Mini 1G (A1454)";

if([deviceStringisEqualToString:@"iPad2,7"])return@"iPad Mini 1G (A1455)";

if([deviceStringisEqualToString:@"iPad3,1"])return@"iPad 3 (A1416)";

if([deviceStringisEqualToString:@"iPad3,2"])return@"iPad 3 (A1403)";

if([deviceStringisEqualToString:@"iPad3,3"])return@"iPad 3 (A1430)";

if([deviceStringisEqualToString:@"iPad3,4"])return@"iPad 4 (A1458)";

if([deviceStringisEqualToString:@"iPad3,5"])return@"iPad 4 (A1459)";

if([deviceStringisEqualToString:@"iPad3,6"])return@"iPad 4 (A1460)";

if([deviceStringisEqualToString:@"iPad4,1"])return@"iPad Air (A1474)";

if([deviceStringisEqualToString:@"iPad4,2"])return@"iPad Air (A1475)";

if([deviceStringisEqualToString:@"iPad4,3"])return@"iPad Air (A1476)";

if([deviceStringisEqualToString:@"iPad4,4"])return@"iPad Mini 2G (A1489)";

if([deviceStringisEqualToString:@"iPad4,5"])return@"iPad Mini 2G (A1490)";

if([deviceStringisEqualToString:@"iPad4,6"])return@"iPad Mini 2G (A1491)";

if([deviceStringisEqualToString:@"i386"])return@"iPhone Simulator";

if([deviceStringisEqualToString:@"x86_64"])return@"iPhone Simulator";

returndeviceString;

}