#import
@class BFCActCenterDetailModel;
@class BFCWonderfulModel;
@interfaceBFCWebScrollView :UIScrollView
@property(nonatomic,copy)void(^scrollViewBlock)(CGFloatheight);
@property (nonatomic, strong) BFCActCenterDetailModel *detailModel;
@property (nonatomic, strong) BFCWonderfulModel *wonderfullModel;
/**
初始化无title的界面
@param frame 尺寸
*/
- (instancetype)initWithNotitleFrame:(CGRect)frame;
@end
#import "BFCWebScrollView.h"
#import "BFCActCenterDetailModel.h"
#import "BFCWonderfulModel.h"
#import
#import "NSObject+RACKVOWrapper.h"
@interface BFCWebScrollView ()<WKUIDelegate, WKNavigationDelegate>
@property (nonatomic, strong) WKWebView *webView;
@property (nonatomic, strong) UILabel *headerLabel;
@property (nonatomic, assign) CGFloat webViewHeight;
@property (nonatomic, assign) CGFloat index;
@property (nonatomic, assign) BOOL showTitle;
@end
@implementationBFCWebScrollView
- (UILabel*)headerLabel{
if (!_headerLabel) {
_headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 17, Main_Screen_Width, 20)];
_headerLabel.text=@"图文详情";
_headerLabel.textColor=RGB(74,74,74);
_headerLabel.textAlignment = NSTextAlignmentCenter;
_headerLabel.font = FONT(@"PingFangSC-Medium", 15);
[selfaddSubview:_headerLabel];
}
return _headerLabel;
}
- (instancetype)initWithFrame:(CGRect)frame{
if(self== [superinitWithFrame:frame]) {
self.showTitle=YES;
[self createWebView];
self.webView.frame = CGRectMake(0, CGRectGetMaxY(self.headerLabel.frame)+10, Main_Screen_Width, 100);
[RACObserve(self, detailModel)subscribeNext:^(BFCActCenterDetailModel*detailModel) {
if(detailModel.details!=nil) {
if([detailModel.detailshasPrefix:@"http"]) {
[selfloadWebPage:detailModel.details];
}
else{
[selfloadHtmlString:detailModel.details];
}
}
}];
}
return self;
}
- (instancetype)initWithNotitleFrame:(CGRect)frame{
if(self== [superinitWithFrame:frame]) {
self.showTitle=NO;
[self createWebView];
self.webView.frame=CGRectMake(0,0,Main_Screen_Width,TAMargin);
[RACObserve(self, wonderfullModel)subscribeNext:^(BFCWonderfulModel*wonderfullModel) {
if(wonderfullModel.content!=nil) {
if([wonderfullModel.contenthasPrefix:@"http"]) {
[selfloadWebPage:wonderfullModel.content];
}
else{
[selfloadHtmlString:wonderfullModel.content];
}
}
}];
}
return self;
}
/**
加载http
*/
- (void)loadWebPage:(NSString*)urlStr {
NSURL *url = [NSURL URLWithString:urlStr];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webViewloadRequest:request];
}
/**
加载HTML字符串
*/
- (void)loadHtmlString:(NSString*)string{
// 自动适配图片宽度
NSString *header = @"img{max-width:100% !important;display:block;}";
NSString*newStr = [NSStringstringWithFormat:@"%@%@",header,string];
[self.webView loadHTMLString:newStr baseURL:nil];
}
/**
加载本地HTML文件
*/
- (void)loadLocalFile:(NSString*)localFile {
NSURL *url = [[NSBundle mainBundle] URLForResource:localFile withExtension:nil];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webViewloadRequest:request];
}
- (void)createWebView
{
WKWebViewConfiguration *wkWebConfig = [[WKWebViewConfiguration alloc] init];
WKUserContentController *wkUController = [[WKUserContentController alloc] init];
wkWebConfig.userContentController= wkUController;
// 自适应屏幕宽度js
NSString *jSString = @"var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);";
WKUserScript *wkUserScript = [[WKUserScript alloc] initWithSource:jSString injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];
// 添加js调用
[wkUControlleraddUserScript:wkUserScript];
self.webView = [[WKWebView alloc] initWithFrame:CGRectZero configuration:wkWebConfig];
self.webView.backgroundColor = [UIColor clearColor];
self.webView.opaque=NO;
self.webView.userInteractionEnabled = NO;
self.webView.scrollView.bounces = NO;
self.webView.UIDelegate = self;
self.webView.navigationDelegate = self;
[self.webView sizeToFit];
[self.webView.scrollView addObserver:self forKeyPath:@"contentSize" options:NSKeyValueObservingOptionNew context:nil];
// [[self.webView.scrollView rac_valuesForKeyPath:@"contentSize" observer:self] subscribeNext:^(NSString x) {
// //X 修改了 NSSize
// NSLog(@"%@",x);
// }];
// [[self.webView.scrollView rac_valuesAndChangesForKeyPath:@"contentSize" options:NSKeyValueObservingOptionNew observer:self] subscribeNext:^(id x) {
// }];
[self addSubview:self.webView];
}
- (void)observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void*)context
{
self.index++;
// 执行多次，但只做一次更改
// if (self.webViewHeight == 0) {
if([keyPathisEqualToString:@"contentSize"]) {
UIScrollView*scrollView = (UIScrollView*)object;
CGFloatheight = scrollView.contentSize.height;
self.webViewHeight= height;
if(self.showTitle) {
self.webView.frame=CGRectMake(0,CGRectGetMaxY(self.headerLabel.frame) +10,Main_Screen_Width, height);
}
else{
self.webView.frame=CGRectMake(0,0,Main_Screen_Width, height);
}
self.contentSize=CGSizeMake(Main_Screen_Width, height);
if(self.scrollViewBlock) {
self.scrollViewBlock(height);
}
}
// }
// 执行五次后移除kvo 否则会一直执行
if(self.index>=5) {
[self.webView.scrollView removeObserver:self forKeyPath:@"contentSize"];
}
}
- (void)dealloc
{
[self.webView.scrollView removeObserver:self forKeyPath:@"contentSize"];
[self.webView stopLoading];
}
//-(void)webView:(WKWebView *)webView didFailNavigation:(WKNavigation *)navigation withError:(NSError *)error
//{
// 没效果
// [self.webView.scrollView removeObserver:self forKeyPath:@"contentSize"];
// if (error.code==-999) {
// return;
// }
//}
@end
