iOS像360滚动圆球那样释放内存,并计算缓存

#import"CleanViewController.h"

#import"SDImageCache.h"

#import"UIImageView+WebCache.h"

@interfaceCleanViewController()

{

UIImageView*imageV;

floattop;

UILabel*_numLabel;

UIImageView*warterImgeV ;

float_countFileSize;//所有缓存文件的大小(M)

BOOLisClear;

UILabel*percentageLabel;

BOOL_isPercentage;

}

@end

staticfloatW =140;

staticfloatH =140;

staticNSIntegeri =0;

@implementationCleanViewController

- (void)viewDidLoad {

[superviewDidLoad];

// Do any additional setup after loading the view.

top= [UIScreenmainScreen].bounds.size.height/4.8f;//140;

self.view.backgroundColor= [UIColorcolorWithRed:65/255.fgreen:171/255.fblue:145/255.falpha:1];

//1.创建mainView：

CGRectframe =CGRectMake( ([UIScreenmainScreen].bounds.size.width-W)/2,top,W,H);

UIView*view = [[UIViewalloc]initWithFrame:frame];

//view.backgroundColor = [UIColor redColor];

view.layer.cornerRadius=70;

//view.layer.borderWidth = .13;

view.layer.masksToBounds=YES;

[self.viewaddSubview:view];

//view.backgroundColor = [UIColor colorWithRed:65/255.f green:171/255.f blue:145/255.f alpha:1];

//2.添加外圆环

CGFloatspace =14;

CGRectframeR =CGRectMake( ([UIScreenmainScreen].bounds.size.width-W)/2-space/2,top-space/2,W+space,H+space);

imageV=[[UIImageViewalloc]initWithFrame:frameR];

imageV.image= [UIImageimageNamed:@"fb_rotation"];

[self.viewaddSubview:imageV];

[NSTimerscheduledTimerWithTimeInterval:.1target:selfselector:@selector(timeActR:)userInfo:imageVrepeats:YES];

//添加图片水；

warterImgeV= [[UIImageViewalloc]initWithFrame:CGRectMake(0,10,500,250)];

warterImgeV.image= [UIImageimageNamed:@"fb_wave.png"];

//warterImgeV.backgroundColor = [UIColor yellowColor];

[viewaddSubview:warterImgeV];

warterImgeV.transform=CGAffineTransformMakeTranslation(-350,100);

//2.5添加百分比label：percentage百分比

percentageLabel= [[UILabelalloc]initWithFrame:CGRectMake(0,0, view.frame.size.width, view.frame.size.height)];

//percentageLabel.text = @"20.3%";

percentageLabel.text= [NSStringstringWithFormat:@"%.01f%%",arc4random_uniform(20)+0.2f];

percentageLabel.textColor= [UIColorredColor];

percentageLabel.font= [UIFontsystemFontOfSize:36weight:7];

percentageLabel.textAlignment=NSTextAlignmentCenter;

[viewaddSubview:percentageLabel];

//2.6创建百分比label

UILabel*label = [[UILabelalloc]initWithFrame:CGRectMake(0,percentageLabel.frame.size.height/2,percentageLabel.frame.size.width,percentageLabel.frame.size.height/2)];

label.text=@"百分比";

label.font= [UIFontsystemFontOfSize:18weight:4];

label.textAlignment=NSTextAlignmentCenter;

label.textColor= [UIColorredColor];

[percentageLabeladdSubview:label];

//3.添加横线

//3.添加横线

UIView*blackView = [[UIViewalloc]initWithFrame:CGRectMake(30,CGRectGetMaxY(view.frame)+50,[UIScreenmainScreen].bounds.size.width-30*2,8)];

blackView.backgroundColor= [UIColorblackColor];

blackView.layer.cornerRadius=4;

blackView.layer.masksToBounds=YES;

[self.viewaddSubview:blackView];

//4.创建label

_numLabel= [[UILabelalloc]initWithFrame:CGRectMake(0,CGRectGetMaxY(blackView.frame)+20,[UIScreenmainScreen].bounds.size.width,55)];

//_numLabel.backgroundColor = [UIColor redColor];

_numLabel.textColor= [UIColorredColor];

_numLabel.text=@"缓存：999933399M";

_numLabel.textAlignment=NSTextAlignmentCenter;

_numLabel.font= [UIFontsystemFontOfSize:32weight:9];

[self.viewaddSubview:_numLabel];

[selfcountCacheFileSize];//设置文件大小

//5.创建清除按钮

UIButton*btn = [[UIButtonalloc]initWithFrame:CGRectMake(( [UIScreenmainScreen].bounds.size.width-150)/2,CGRectGetMaxY(_numLabel.frame)+20,150,40)];

btn.backgroundColor= [UIColorcolorWithRed:0green:0blue:0alpha:.2];

[btnsetTitle:@"一键清除"forState:UIControlStateNormal];

[btnsetTitleColor:[UIColorredColor]forState:UIControlStateNormal];

[btnsetTitleColor:[UIColorwhiteColor]forState:UIControlStateSelected];

btn.layer.cornerRadius=10;

btn.layer.masksToBounds=YES;

btn.layer.borderColor= [UIColorwhiteColor].CGColor;

btn.layer.borderWidth=.5;

[btnaddTarget:selfaction:@selector(btnAct:)forControlEvents:UIControlEventTouchUpInside];

[btnsetTitle:@"完成/退出"forState:UIControlStateSelected];

[self.viewaddSubview:btn];

}

//按钮的点击方法：

-(void)btnAct:(UIButton*)btn{

//1.一键清除

if(btn.selected==NO) {

_isPercentage= !_isPercentage;//设置启动百分比加+

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(.1*NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

[UIViewanimateWithDuration:3animations:^{

warterImgeV.transform=CGAffineTransformIdentity;

}completion:^(BOOLfinished) {

//做动画效果：

[NSTimerscheduledTimerWithTimeInterval:1target:selfselector:@selector(timeAct:)userInfo:warterImgeVrepeats:YES];

}];

});

// 4、清除所有的缓存文件

//-----导入清除缓存-------

[[SDImageCachesharedImageCache]clearDisk];

isClear=YES;

//[self countCacheFileSize];

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3*NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

//清除缓存：

[selfcountCacheFileSize];

});

//2.完成推出

}else{

[selfdismissViewControllerAnimated:NOcompletion:^{

}];

}

btn.selected= !btn.selected;

}

//定时器切换

-(void)timeAct:(NSTimer*)timer{

//UIImageView *warterImgeV = timer.userInfo;

CGFloatYi =7;

if(i==0) {

//重新设置frame：

CGRectfloatCont =warterImgeV.frame;

floatCont.origin.x= -CGRectGetWidth(warterImgeV.frame)+W+Yi;

warterImgeV.frame= floatCont;

}

[UIViewanimateWithDuration:3.2animations:^{

warterImgeV.transform=CGAffineTransformMakeTranslation(CGRectGetWidth(warterImgeV.frame)-1.3*W,0);

[timersetFireDate:[NSDatedistantFuture]];

}completion:^(BOOLfinished) {

[timersetFireDate:[NSDatedistantPast]];

warterImgeV.transform=CGAffineTransformIdentity;

}];

}

-(void)timeActR:(NSTimer*)timer{

//2.设置旋转：

imageV.transform=CGAffineTransformRotate(imageV.transform,M_PI/12);

staticCGFloaty =21;

if(_isPercentage){

if(y<91) {

percentageLabel.text= [NSStringstringWithFormat:@"%.01f%%",y];

y=y+4.1;

}

}

}

//------导入清除缓存----------

-(void)countCacheFileSize{

//float _countFileSize; //所有缓存文件的大小(M)

// 1、找到缓存文件的保存路径

// NSHomeDirectory()找到应用的沙盒路径

NSString*filePath =[NSHomeDirectory()stringByAppendingPathComponent:@"Library/Caches/com.hackemist.SDWebImageCache.default"];

NSLog(@"->%@",filePath);

// 2、获取所有的缓存文件

//文件管理对象类NSFileManager，有它去管理我们的文件目录

NSFileManager*fileManager = [NSFileManagerdefaultManager];

// subpathsOfDirectoryAtPath,获取当前路径下所有子文件名

NSArray*fileArray = [fileManagersubpathsOfDirectoryAtPath:filePatherror:nil];

// 3、计算所有缓存文件的大小

longlongfileSize =0;//所有文件的总字节数

for(NSString*fileNameinfileArray) {

//获得每一个缓存文件的路径

NSString*subFilePath = [filePathstringByAppendingPathComponent:fileName];

NSDictionary*attributes = [fileManagerattributesOfItemAtPath:subFilePatherror:nil];

//NSLog(@"文件属性：%@",attributes);

//每个子文件所占的字节大小

longlongsize =[attributes[NSFileSize]longLongValue];

fileSize += size;

}

//转为一兆(M)为单位

_countFileSize= fileSize /1024.0/1024.0;

NSLog(@"文件的储存大小：%f,,,,%lld",_countFileSize,fileSize);

//

//if (isClear == YES) {

//NSString *count = [NSString stringWithFormat:@"%.0f", _countFileSize];

//if ([count isEqualToString:@"0"]) {

//[MBProgressHUD showMessage:@"清理完成" view:self.view];

//isClear = NO;

//}else{

//[self countCacheFileSize];

//}

//}

//

//return _countFileSize;

_numLabel.text= [NSStringstringWithFormat:@"缓存：%04fM",_countFileSize];

}