iOS Trivia points

Get Picture Cache

1. Import

#import "SDImageCache.h"

Convert B units to M

[NSString stringwithformat:@ "%.2FM", (double) [[Sdimagecache Sharedimagecache] getsize]/1000/1000];

Clear the picture cache

[[Sdimagecache Sharedimagecache] cleardisk];

Get all file caches in a folder

Folder Enumerator, you can enumerate all the files within this folder and subfolders of this folder

Nsdirectoryenumerator *enumerator = [[Nsfilemanager Defaultmanager] Enumeratoratpath:<[commontool Filedownloadpath]>>> the path of the folder that needs to be traversed];

unsigned long long totalsize = 0;

while ([Enumerator nextobject])

{

Totalsize+=[[enumerator FileAttributes] fileSize];

}

[NSString stringwithformat:@ "%.2FM", (double) totalsize/1000/1000];

Clean up the file cache

[[Nsfilemanager Defaultmanager] Removeitematpath:<[commontool filedownloadpath]>>> need to delete the folder path via Error:nil ];

Auto-Hide Tabbar when push

vc.hidesbottombarwhenpushed = YES;

Self-adapting height

CGRect rect = [_news.intr-needs to get the string-Boundingrectwithsize:cgsizemake (screen_width-30>-needs to be a wide line, 0) options: nsstringdrawinguseslinefragmentorigin| Nsstringdrawingusesfontleading Attributes:@{nsfontattributename:[uifont boldsystemfontofsize:14]} Context:nil];

return rect.size.height+30;

Get the height of the keyboard input box adaptive

_inputview is a custom View plus textField input box

[[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (keyboardwillchangeframe:) Name: Uikeyboardwillchangeframenotification Object:nil];

-(void) Keyboardwillchangeframe: (nsnotification *) noti{

NSLog (@ "%@", noti.userinfo);

CGRect rect = [[Noti.userinfo Objectforkey:uikeyboardframeenduserinfokey] cgrectvalue];

[UIView Animatewithduration:[[noti.userinfo Objectforkey:uikeyboardanimationdurationuserinfokey] FloatValue] animations:^{

_inputview.frame = CGRectMake (0, rect.origin.y-40, Screen_width, 40);

_tableview.frame = CGRectMake (0, 0, screen_width, _INPUTVIEW.FRAME.ORIGIN.Y);

}];

}

---slide your keyboard down

-(void) scrollviewwillbegindragging: (Uiscrollview *) scrollview{

[Self.view Endediting:yes];

}

Bubble chat dedicated from a pixel point lachen

Self.bubbleImageView.image = [[UIImage imagenamed:@ "Bubbleself.png"] stretchableimagewithleftcapwidth:25 TOPCAPHEIGHT:20];

Set the photo as a round regular avatar

Self.headerImageView.layer.cornerRadius = 30-The radius of the photo size;

Self.headerImageView.layer.masksToBounds = YES;

Set the corner label for the app icon

[[UIApplication sharedapplication] setapplicationiconbadgenumber:number-need to obtain the number];

iOS Trivia points