UIWebView使用保存图片的本地，以及设置

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@interface DetailsViewController ()<UIGestureRecognizerDelegate,UIActionSheetDelegate,UIWebViewDelegate> {

NSString *strUrl; //图片网址

int lastContentOffset; //最后位置

NSString *strSize;

int labelSize ;

int tempY; //设置视图的y轴

DetailButtonView *detailButtonView;

}

@property (strong,nonatomic) UIWebView *webView;

@property (strong,nonatomic) LoadreImageView *imgView;//保存网络图片到本地相册

@property (strong,nonatomic) UIView *whiteBackground;//白色覆盖背景

@property (strong,nonatomic) UIView *viewSetting; //设置视图

@property (strong,nonatomic) UIButton *btnGrayView; //灰色覆盖层

@property (strong,nonatomic) UISegmentedControl *sengment;//字体选择器；

@end

staticBOOL openImage = YES;//判断是否打开图片状态

@implementation DetailsViewController

- (void)viewWillAppear:(BOOL)animated {

NSUserDefaults *defaults = [NSUserDefaultsstandardUserDefaults];

labelSize = (int)[defaultsintegerForKey:@"selectionRow"];

NSString *str = [selflaelSize:labelSize];

self.tabBarController.tabBar.hidden =NO;

self.navigationController.navigationBarHidden =YES;

strSize = [NSStringstringWithFormat:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '%@'",str];

self.sengment.selectedSegmentIndex =labelSize;

}

- (void)viewDidLoad {

self.imgView = [LoadreImageViewnew];

self.whiteBackground = [[UIViewalloc]initWithFrame:CGRectMake(0,20, SCREEN_WIDTH, SCREEN_HEIGHT - 20)];

self.whiteBackground.backgroundColor = [UIColorwhiteColor];

self.whiteBackground.hidden =YES;

[self.viewaddSubview:self.whiteBackground];

//状态栏目背景颜色

UIView *statusBarView=[[UIViewalloc] initWithFrame:CGRectMake(0,0, self.view.frame.size.width,20)];

statusBarView.backgroundColor=[UIColorblackColor];

[self.viewaddSubview:statusBarView];

[superviewDidLoad];

self.view.backgroundColor=[UIColorwhiteColor];

// Do any additional setup after loading the view.

//创建webView

self.webView = [UIWebViewnew];

self.webView.frame =CGRectMake(0,20, self.view.frame.size.width,self.view.frame.size.height -60);

self.webView.delegate =self;

self.webView.backgroundColor = [UIColorwhiteColor];

[self.viewaddSubview:self.webView];

//读取html文件

NSString *filePath = [[NSBundlemainBundle]pathForResource:@"1"ofType:@"html"];

NSString *htmlString = [NSStringstringWithContentsOfFile:filePath encoding:NSUTF8StringEncodingerror:nil];

[self.webViewloadHTMLString:htmlString baseURL:[NSURL URLWithString:filePath]];

//，弹出界面设置view的时候显示灰色的view，点击时，回收设置view

self.btnGrayView = [UIButtonbuttonWithType:UIButtonTypeRoundedRect];

self.btnGrayView.frame =self.view.bounds;

self.btnGrayView.backgroundColor = [UIColorgrayColor];

self.btnGrayView.alpha =0.3;

[self.btnGrayViewaddTarget:selfaction:@selector(btnGrayViewAction:)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:self.btnGrayView];

self.btnGrayView.hidden =YES;

//设置视图

[selfsettingView];

//创建底部状态栏

detailButtonView = [[DetailButtonViewalloc]initWithFrame:CGRectMake(0,SCREEN_HEIGHT -40, self.view.frame.size.width,40)]; //160;

[detailButtonView.btnMoreaddTarget:selfaction:@selector(btnMoreAction:)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:detailButtonView];

//NSString *fontFamily = @"STHeiti";//改字体

NSString *fontFamily = FONT_NAME2;

float fontSize = 16;

UIColor *fontColor = [UIColorblackColor];

NSString *jsString = [NSStringstringWithFormat:@"<html> \n"

"<head> \n"

"<style type=\"text/css\"> \n"

"body {font-size: %f; font-family: \"%@\"; color: %@;}\n"

"</style> \n"

"</head> \n"

"<body>%@</body> \n"

"</html>", fontSize, fontFamily, fontColor, htmlString];

[self.webViewloadHTMLString:jsString baseURL:nil];

UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(doubleTap:)];

//doubleTap.numberOfTouchesRequired = 2;

doubleTap.numberOfTapsRequired =1;

doubleTap.delegate =self;

doubleTap.cancelsTouchesInView =NO;

[self.webViewaddGestureRecognizer:doubleTap];

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizeralloc]initWithTarget:selfaction:@selector(longGesture:)];

[self.viewaddGestureRecognizer:longPress];

//活动指示器开始

//[[LoadingProgressView getInstance] show];

}

- (void)btnGrayViewAction:(UIButton *)sender {

[UIViewanimateWithDuration:0.5animations:^{

self.viewSetting.center =CGPointMake(SCREEN_WIDTH/2,(SCREEN_HEIGHT -40) + 60);

}];

self.btnGrayView.hidden =YES;

}

- (void)btnMoreAction:(UIButton *)sender {

if (tempY ==SCREEN_HEIGHT- 40) {

tempY = SCREEN_HEIGHT -160;

self.btnGrayView.hidden =NO;

[UIViewanimateWithDuration:0.3animations:^{

detailButtonView.btnMore.transform = CGAffineTransformMakeRotation(M_PI);

}];

}else {

tempY = SCREEN_HEIGHT -40;

self.btnGrayView.hidden =YES;

[UIViewanimateWithDuration:0.3animations:^{

detailButtonView.btnMore.transform = CGAffineTransformMakeRotation(0);

}];

}

[UIViewanimateWithDuration:0.5animations:^{

self.viewSetting.center =CGPointMake(SCREEN_WIDTH/2,tempY +60);

}];

}

- (void)segmentAction:(UISegmentedControl *)seg {

int index = (int)seg.selectedSegmentIndex;

NSString *str = [selflaelSize:index];

NSString *strSize1 = [NSStringstringWithFormat:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '%@'",str];

[self.webViewstringByEvaluatingJavaScriptFromString:strSize1];

//保存选中的行数

NSUserDefaults *defaults = [NSUserDefaultsstandardUserDefaults];

[defaultssetInteger: index forKey:@"selectionRow"];

[defaultssynchronize];

}

- (NSString *)laelSize:(int)index {

NSString *str;

switch (index) {

case 0:

str =@"100%";

break;

case 1:

str =@"125%";

break;

case 2:

str =@"150%";

break;

case 3:

str =@"175%";

break;

default:

break;

}

return str;

}

- (void)webViewDidFinishLoad:(UIWebView *)webView {

[self.webViewstringByEvaluatingJavaScriptFromString:strSize];

//[webView stringByEvaluatingJavaScriptFromString:strxx];

//NSString *currentURL = [webView stringByEvaluatingJavaScriptFromString:@"document.location.href"];

//NSLog(@"curretURL=%@=",currentURL);

//NSString *jsString = [[NSString alloc] initWithFormat:@"document.body.style.fontSize=%f;document.body.style.color=%@",25,fontColor];

//活动指示器隐藏

//[[LoadingProgressView getInstance] hidde];

//拦截网页图片并修改图片大小

int imgWidth = self.view.frame.size.width -30;

NSString *strImage = [NSStringstringWithFormat:@"var script = document.createElement('script');"

"script.type = 'text/javascript';"

"script.text = \"function ResizeImages() { "

"var myimg,oldwidth;"

"var maxwidth=%d;"

"for(i=0;i <document.images.length;i++){"

"myimg = document.images[i];"

"if(myimg.width > maxwidth){"

"oldwidth = myimg.width;"

"myimg.width = maxwidth;"

"myimg.height = myimg.height * (maxwidth/oldwidth);"

"}"

"}\";"

"document.getElementsByTagName('head')[0].appendChild(script);",imgWidth];

[webView stringByEvaluatingJavaScriptFromString:

strImage];

[webView stringByEvaluatingJavaScriptFromString:@"ResizeImages();"];

/*/字体颜色

NSString *fontColor = [NSString stringWithFormat:@"document.getElementsByTagName('body')[0].style.webkitTextFillColor= '%@'",strFontColor];

[webView stringByEvaluatingJavaScriptFromString:fontColor];

//页面背景色 #2E2E2E

NSString *viewBackground = [NSString stringWithFormat:@"document.getElementsByTagName('body')[0].style.background='%@'",strBackground];

[webView stringByEvaluatingJavaScriptFromString:viewBackground];*/

//NSLog(@"model====XXX=%@=%@=",strFontColor,strBackground);

//NSString *fontFamily = @"STHeiti"; //// Helvetica-Bold Arial @"STHeiti"

//NSString *fontFamily = FONT_NAME2;

//字体

// NSString *str =[NSString stringWithFormat:@"document.getElementsByTagName('body')[0].style.WebkitFontFamily='Helvetica-Bold'"];//font-family

// [webView stringByEvaluatingJavaScriptFromString:str];

}

//点击获取图片

-(void)doubleTap:(UITapGestureRecognizer *)sender

{

if (openImage ==YES) {

CGPoint pt = [sender locationInView:self.webView];

pt.x =SCREEN_WIDTH/2;

NSString *imgURL = [NSStringstringWithFormat:@"document.elementFromPoint(%f, %f).src", pt.x, pt.y];

NSString *urlToSave = [self.webViewstringByEvaluatingJavaScriptFromString:imgURL];

// NSLog(@"image url=%@", urlToSave);

strUrl = urlToSave;

if (urlToSave.length >0) {

[selfshowImageURL:urlToSave point:pt];

[self.imgViewloadImage:urlToSave];

}

//呈现图片

-(void)showImageURL:(NSString *)url point:(CGPoint)point {

LoadreImageView *showView = [[LoadreImageViewalloc] initWithFrame:CGRectMake(0,0, 320, 270)];

showView.center = point;

[UIViewanimateWithDuration:0.5fanimations:^{

CGPoint newPoint = self.view.center;

//newPoint.y += 10;

showView.center = newPoint;

}];

showView.backgroundColor = [UIColorblackColor];

showView.userInteractionEnabled =YES;

[showViewloadImage:strUrl];

self.whiteBackground.hidden =NO;

self.whiteBackground.userInteractionEnabled =NO;

[self.viewaddSubview:self.whiteBackground];

[self.viewaddSubview:showView];

openImage = NO;

UITapGestureRecognizer* singleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleSingleViewTap:)];

[showViewaddGestureRecognizer:singleTap];

//[self.navigationController setNavigationBarHidden:YES animated:YES];

}

//移除图片查看视图

-(void)handleSingleViewTap:(UITapGestureRecognizer *)sender

{

for (id objin self.view.subviews) {

if ([obj isKindOfClass:[LoadreImageViewclass]]) {

[objremoveFromSuperview];

}

openImage = YES;

self.whiteBackground.hidden =YES;

//[self.navigationController setNavigationBarHidden:NO animated:YES];

}

//长按编辑状态

-(void)longGesture:(UILongPressGestureRecognizer *)recognizer {

if (recognizer.state ==UIGestureRecognizerStateBegan) {

UIActionSheet *sheet = [[UIActionSheetalloc]initWithTitle:@"保存图片"delegate:selfcancelButtonTitle:@"取消"destructiveButtonTitle:nilotherButtonTitles:@"确定",@"取消",nil];

sheet.backgroundColor = [UIColorblackColor];

[sheetshowInView:self.view];

}

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

switch (buttonIndex) {

case 0:

UIImageWriteToSavedPhotosAlbum(self.imgView.image,self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:),nil);

break;

case 1:

break;

default:

break;

}

- (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo

{

NSString *message;

if (!error) {

message =@"成功保存到相册";

}else {

message = [errordescription];

}

NSLog(@"message is %@",message);

}

- (void)settingView {

tempY =SCREEN_HEIGHT - 40;

self.viewSetting = [[UIViewalloc]initWithFrame:CGRectMake(0,tempY, SCREEN_WIDTH, 120)];

self.viewSetting.backgroundColor = [UIColorwhiteColor];

[self.viewaddSubview:self.viewSetting];

//屏幕亮度

UILabel *lblBrightness = [[UILabelalloc]initWithFrame:CGRectMake(10,13, 70, 30)];

lblBrightness.font = [UIFontfontWithName:FONT_NAME1size:FONT_SIZE2];

lblBrightness.text =@"屏幕亮度";

[self.viewSettingaddSubview:lblBrightness];

UISlider *slider = [[UISlideralloc]initWithFrame:CGRectMake(80,22, 210, 20)];

slider.tintColor =BACKER_COLOR;

slider.value =0.30;/*

slider.backgroundColor = [UIColor clearColor];

[slider setMinimumTrackImage:[UIImage imageNamed:@"max.png"] forState:UIControlStateNormal];

[slider setMaximumTrackImage:[UIImage imageNamed:@"min.png"] forState:UIControlStateNormal];

[slider addTarget:selfaction:@selector(sliderAction:)forControlEvents:UIControlEventValueChanged];

[self.viewSettingaddSubview:slider];

//分割线

UIView *viewLine = [[UIViewalloc]initWithFrame:CGRectMake(0,0, SCREEN_WIDTH ,0.5)];

viewLine.backgroundColor = [UIColorgrayColor];

[self.viewSettingaddSubview:viewLine];

UIView *viewLine2 = [[UIViewalloc]initWithFrame:CGRectMake(10,60, SCREEN_WIDTH -20, 0.5)];

viewLine2.backgroundColor = [UIColorgrayColor];

viewLine2.alpha =0.5;

[self.viewSettingaddSubview:viewLine2];

//字体大小

UILabel *lblSize = [[UILabelalloc]initWithFrame:CGRectMake(10,75, 70, 30)];

lblSize.text =@"字体大小";

lblSize.font = [UIFontfontWithName:FONT_NAME1size:FONT_SIZE2];

[self.viewSettingaddSubview:lblSize];

NSArray *segmentedArray = [[NSArrayalloc]initWithObjects:@"小字体",@"中字体",@"大字体",@"特大字",nil];

self.sengment = [[UISegmentedControlalloc]initWithItems:segmentedArray];

self.sengment.frame =CGRectMake(80,75, 210, 30);

self.sengment.tintColor = BACKER_COLOR;

self.sengment.selectedSegmentIndex =labelSize;

[self.sengmentaddTarget:selfaction:@selector(segmentAction:)forControlEvents:UIControlEventValueChanged];

[self.viewSettingaddSubview:self.sengment];

}

*控制屏幕亮暗度

- (void)sliderAction:(UISlider *)sender {

[[UIScreenmainScreen] setBrightness:sender.value];

}

*现在的位置

-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {

lastContentOffset = scrollView.contentOffset.y;

}

-(void)swipeLeftRight:(UISwipeGestureRecognizer *)recognizer {

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer

{

return YES;

}

@end

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UIWebView使用 保存图片的本地，以及设置

UIWebView使用保存图片的本地，以及设置