從NSHomeDirectory（）在UIWebView中加載文件？

Question

我如何在UIWebview中從NSHomeDirectory（）加載文件？這是可能的 ？我的意思是從/ Documents /文件夾加載.pdf文件。

謝謝！

Answer 1

我不知道該怎麼DOWS NSHomeDirectory()作品，但你可以看看this post來看看如何獲​​得這些文件的完整路徑和this other看看如何將一個PDF加載到UIWebView

Answer 2

這裏是你如何可以下載，閱讀和本地存儲PDF的iPhone應用程序：

首先創建一個UIWebView幷包括< < UIWebViewDelegate >>

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); 
    NSString *documentsPath = [paths objectAtIndex:0]; 
    NSString *filePath = [documentsPath stringByAppendingPathComponent:@"YourPDF.pdf"]; 
if(![[NSFileManager defaultManager] fileExistsAtPath:filePath]){ 
      // download file , here "https://s3.amazonaws.com/hgjgj.pdf" = pdf downloading link 
     NSData *pdfData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:@"https://s3.amazonaws.com/hgjgj.pdf"]]; 
      //Store the downloaded file in documents directory as a NSData format 
     [pdfData writeToFile:filePath atomically:YES]; 
    } 

    NSURL *url = [NSURL fileURLWithPath:filePath]; 
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; 
    [yourWebView setUserInteractionEnabled:YES]; 
    [yourWebView setDelegate:self]; 
    yourWebView.scalesPageToFit = YES; 
    [yourWebView loadRequest:requestObj]; 

或者，如果你只是想從你的資源文件夾讀/加載PDF然後簡單地做到這一點：

 NSString* filePath= [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"pdf"]]; 
    /// or you can even read docs file as : pathForResource:@"sample" ofType:@"docx"] 
    NSURL *url = [NSURL fileURLWithPath:filePath]; 
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; 
    [yourWebView setUserInteractionEnabled:YES]; 
    [yourWebView setDelegate:self]; 
    yourWebView.scalesPageToFit = YES; 
    [yourWebView loadRequest:requestObj];