IOS开发基础知识--碎片14

创建/添加一个zip包ZipArchive* zipFile = [[ZipArchive alloc] init];//次数得zipfilename需要一个完整得路径，例如***/Documents/demo.zip[zipFile CreateZipFile2:@"zipfilename"]; //有两种可选得方式进行创建压缩包，带密码和不带密码的[[zipFile CreateZipFile2:@"zipfilename" PassWord:@"your password"];//接下来就是将需要压缩的文件添加到这个压缩包中//这里第一个参数需要完整的路径,例如:***/Documents/a.txt  newname是指文件在压缩包中的名字,不需要路径，只是一个名称[zipFile addFileToZip:@"fullpath of the file" newname:@"new name of the file without path"];//如果需要将多个文件进行压缩,即压缩文件夹，重复addFileToZip方法即可[zipFile CloseZipFile2]; 解压zip包：ZipArchive* zipFile = [[ZipArchive alloc] init];[zipFile UnzipOpenFile:@"zip file name"]; //同样，对应的就有两种打开zip包的方式，带密码和不带密码[zipFile UnzipOpenFile:@"zip file name" Password:@"password" ];//压缩包释放到的位置，需要一个完整路径 [zipFile UnzipFileTo:@"output path" overwrite:YES];[zipFile UnzipCloseFile];[zipFile release];//记得释放

1. 压缩:ZipArchive可以压缩多个文件,只需要把文件一一addFileToZip即可.ZipArchive* zip = [[ZipArchive alloc] init];NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentpath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;NSString* l_zipfile = [documentpath stringByAppendingString:@"/test.zip"] ; NSString* image1 = [documentpath stringByAppendingString:@"/image1.jpg"] ;NSString* image2 = [documentpath stringByAppendingString:@"/image2.jpg"] ;        BOOL ret = [zip CreateZipFile2:l_zipfile];ret = [zip addFileToZip:image1 newname:@"image1.jpg"];ret = [zip addFileToZip:image2 newname:@"image2.jpg"];if( ![zip CloseZipFile2] )  {     l_zipfile = @"";  } 2. 解压缩:ZipArchive* zip = [[ZipArchive alloc] init];NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentpath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;  //路径地址要注意 NSString* l_zipfile = [documentpath stringByAppendingString:@"/test.zip"] ;NSString* unzipto = [documentpath stringByAppendingString:@"/test"] ;if( [zip UnzipOpenFile:l_zipfile] ) {   BOOL ret = [zip UnzipFileTo:unzipto overWrite:YES];   if( NO==ret )   {   }   [zip UnzipCloseFile]; }

UIImageView *imageView =[[UIImageView alloc]initWithFrame:CGRectMake(100, 100, 200, 200)];    imageView.image=[UIImageimageNamed:@"filter_laozhaopian_a.png"];    imageView.tag = 10000;  //可以通过这样来给下边的点击事件传值    imageView.userInteractionEnabled = YES;    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(UesrClicked:)];    [imageView addGestureRecognizer:singleTap];    [self.view addSubview:imageView];- (void)UesrClicked:(UITapGestureRecognizer *)recognizer{   NSLog(@"%d",(recognizer.view.tag - 1000));} 

UIView *titleView=[[UIView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, KTitleViewHeight)];        //最新定义左边的按键    UIButton *leftItemButton=[UIButton buttonWithType:UIButtonTypeCustom];    leftItemButton.frame=CGRectMake(0, 0, KLeftItemButtonWidth, KLeftItemButtonHeight);    [leftItemButton setBackgroundImage:[UIImage imageNamed:@"mapMarkNormal"] forState:UIControlStateNormal];    [leftItemButton setBackgroundImage:[UIImage imageNamed:@"mapMarkSelected"] forState:UIControlStateHighlighted];    [leftItemButton addTarget:self action:@selector(leftButtonAction) forControlEvents:UIControlEventTouchUpInside];    [titleView addSubview:leftItemButton];    [leftItemButton mas_makeConstraints:^(MASConstraintMaker *make) {        make.centerY.equalTo(titleView);        make.left.equalTo(titleView.mas_left).with.offset(5);        make.size.equalTo(CGSizeMake(KLeftItemButtonWidth, KLeftItemButtonHeight));    }];        UILabel *titleLabel=[UILabel new];    titleLabel.textAlignment=NSTextAlignmentCenter;    titleLabel.font=[UIFont systemFontOfSize:14];    titleLabel.text=@"厦山中华公园广场";    [titleView addSubview:titleLabel];    [titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {        make.centerY.equalTo(titleView);        make.left.equalTo(titleView.mas_left).with.offset((SCREEN_WIDTH-KTitleViewTitleWidte-10)/2);    }];        UIButton *downButton=[UIButton new];    [downButton setImage:[UIImage imageNamed:@"FileDownload"] forState:UIControlStateNormal];    [titleView addSubview:downButton];    [downButton mas_makeConstraints:^(MASConstraintMaker *make) {        make.right.equalTo(titleView.mas_right).with.offset(-2);        make.centerY.equalTo(titleView);        make.size.equalTo(CGSizeMake(KTitleViewButtonWidth, KTitleViewButtonHeight));    }];        UILabel *PRoLabel=[UILabel new];    proLabel.font=[UIFont systemFontOfSize:10];    proLabel.textColor=[UIColor colorWithHexString:KWitTourism_APPTextColor];    proLabel.textAlignment=NSTextAlignmentRight;    proLabel.text=@"正在下载";    [titleView addSubview:proLabel];        [proLabel mas_makeConstraints:^(MASConstraintMaker *make) {        make.right.equalTo(downButton.mas_left).with.offset(-5);        make.centerY.equalTo(titleView);        make.size.equalTo(CGSizeMake(KTitleViewLabelWidth, KTitleViewLabelHeight));    }];        self.navigationItem.titleView=titleView;

对滚动的图片数组头尾各增加一张，头则在其前面增加一张尾部的，尾部则插入一张第一张；并在滚动事件中进行处理，改变其位置；主体代码如下（若不自写也可以找相应插件，已封装）：/** *  @author wujunyang, 15-06-05 13:06:12 * *  @brief  头部滚动视图布局 */-(void)setupScrollView{    int imgCount=self.imgdatalist.count;        //如果没有值时 用一张默认的图片替换显示    if (imgCount==0) {        UIImageView *featureImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"thirdEmpty"]];        featureImageView.frame=self.headerImageView.frame;        [self.headerImageView addSubview:featureImageView];    }    else{        //实际的图片个数        _actualImgNum=self.imgdatalist.count;        //为实现无限滚动 首先在第一个前面插入一个元素 此元素为最后一个        [self.imgdatalist insertObject:[self.imgdatalist objectAtIndex:([self.imgdatalist count]-1)] atIndex:0];        //在第后一个增加一个原先的第一个 由于上面已被插入一个值 所以原先的第一个变成第二个 所以此处为1        [self.imgdatalist addObject:[self.imgdatalist objectAtIndex:1]];        //增加后的个数 用于处理定义滚动视图内容的总宽度        int imagDataListCount=self.imgdatalist.count;        _scrollView=[[UIScrollView alloc]init];        _scrollView.frame=self.headerImageView.frame;                for (int i=0; i<self.imgdatalist.count; i++) {            AroundImgBean* aroundimgbean=[self.imgdatalist objectAtIndex:i];            // 获取图片            NSString *featureImageName = aroundimgbean.aroundimgurl;            UIImageView *featureImageView = [[UIImageView alloc] init];            [featureImageView sd_setImageWithURL:[NSURL URLWithString:featureImageName] placeholderImage:[UIImage imageNamed:@"thirdEmpty"]];                        // 设置图片尺寸位置            CGFloat featureWidth = SCREEN_WIDTH;            CGFloat featureHeight = self.headerImageView.frame.size.height;            CGFloat featureX = SCREEN_WIDTH * i;            CGFloat featureY = 0;            featureImageView.frame = CGRectMake(featureX, featureY, featureWidth, featureHeight);            [_scrollView addSubview:featureImageView];        }                // 设置scrollView功能属性        _scrollView.userInteractionEnabled = YES;        _scrollView.bounces=NO;        _scrollView.scrollEnabled = YES; // 支持滚动        _scrollView.contentSize = CGSizeMake(self.headerImageView.frame.size.width * imagDataListCount, 0); // 只需要水平滚动        _scrollView.pagingEnabled = YES; // 支持分页        _scrollView.showsHorizontalScrollIndicator = NO; // 隐藏水平滚动条                // 设置代理        _scrollView.delegate = self;                // 添加        [self.headerImageView addSubview:_scrollView];    }}//滚动事件- (void)scrollViewDidScroll:(UIScrollView *)myscrollView {    if ([myscrollView isEqual:_scrollView]) {    // 四舍五入，让图片滚动超过中线的时候改变页码    if (self.imgdatalist.count>0) {        CGFloat pageWidth = _scrollView.frame.size.width;        int page = floor((_scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;        _currentPageIndex=page;        //当前页数要是没有超过实际的值时        if (_currentPageIndex<_actualImgNum) {            _imageCount=[NSString stringWithFormat:@"%d/%d",_currentPageIndex+1,_actualImgNum];        }        else        {            _imageCount=[NSString stringWithFormat:@"%d/%d",1,_actualImgNum];        }                self.imageLabel.text=_imageCount;    }    else    {        _imageCountView.hidden=YES;        _imageLabel.hidden=YES;    }    }}/** *  @author wujunyang, 15-06-05 11:06:06 * *  @brief  滚动事件处理 无限滚动 修改滚动的当前位置 *  @param myscrollView <#myscrollView description#> */- (void)scrollViewDidEndDecelerating:(UIScrollView *)myscrollView{    if ([myscrollView isEqual:_scrollView]) {        if (_currentPageIndex==0) {                        [_scrollView setContentOffset:CGPointMake(([self.imgdatalist count]-2)*myscrollView.frame.size.width, 0)];        }        if (_currentPageIndex==([self.imgdatalist count]-1)) {                        [_scrollView setContentOffset:CGPointMake(myscrollView.frame.size.width, 0)];        }    }}