IOS開發之NSURL

IOS開發之NSURL

1:NSURL初始化方法:

1. NSURL *url=[NSURL URLWithString:@www.bkjia.comid=1];

    

   2:解決NSURL初始化失敗的相關解決方案.

   將傳進來的NSString 進行 UTF8 轉碼即可.

   1:針對 URLWithString 初始化失敗的解決方案

   1. NSString *strLocalHtml = @file:///Users/amarishuyi/Desktop/My IPhone Life/WebDeveloper/WebPlug-in/ExtEditor/DataPage/KMQT/Ext-HTMLEditor.html;
   2. strLocalHtml = [NSString stringWithFormat:@%@?Value=%@,strLocalHtml,self.txtUrl.text];
   3. strLocalHtml= [strLocalHtml stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
   4. NSURL * url=[NSURL URLWithString:strLocalHtml];

      2:針對 fileURLWithPath 初始化失敗的解決方案

      1. self.filePathString = [self.filePathString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
      2. NSURL *url = [NSURL fileURLWithPath:self.filePathString];
         轉碼成功後 會自動 在字串左側添加 file:///

         
          

          

          

         3:NSURL 成功初始化後可以擷取的參數 (摘自:NSURL 學習 )

          

         1. NSURL *url = [NSURL URLWithString: @www.bkjia.com?tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709];
         2. NSLog(@Scheme: %@, [url scheme]);
         3. NSLog(@Host: %@, [url host]);
         4. NSLog(@Port: %@, [url port]);
         5. NSLog(@Path: %@, [url path]);
         6. NSLog(@Relative path: %@, [url relativePath]);
         7. NSLog(@Path components as array: %@, [url pathComponents]);
         8. NSLog(@Parameter string: %@, [url parameterString]);
         9. NSLog(@Query: %@, [url query]);
         10. NSLog(@Fragment: %@, [url fragment]);
         11. NSLog(@User: %@, [url user]);
         12. NSLog(@Password: %@, [url password]);

             結果如下:

             1. 2012-03-31 18:22:20.904 SmallDemoList[5473:11603] 12131232
             2. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Scheme: http
             3. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Host: www.baidu.com
             4. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Port: (null)
             5. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Path: /s
             6. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Relative path: /s
             7. 2012-03-31 18:22:20.907 SmallDemoList[5473:11603] Path components as array: (
             8. /,
             9. s
             10. )
             11. 2012-03-31 18:22:20.916 SmallDemoList[5473:11603] Parameter string: (null)
             12. 2012-03-31 18:22:20.917 SmallDemoList[5473:11603] Query: tn=baiduhome_pg&bs=NSRUL&f=8&rsv_bp=1&rsv_spt=1&wd=NSurl&inputT=2709
             13. 2012-03-31 18:22:20.917 SmallDemoList[5473:11603] Fragment: (null)
             14. 2012-03-31 18:22:20.917 SmallDemoList[5473:11603] User: (null)
             15. 2012-03-31 18:22:20.917 SmallDemoList[5473:11603] Password: (null)
                 

                 4:根據檔案名稱和檔案尾碼擷取程式包內容檔案的路徑

                 NSURL *urlKindEditor = [[NSBundlemainBundle]URLForResource:@simplewithExtension:@htmlsubdirectory:@KindEditor/examples];

                  

                 URLForResource:檔案名稱

                 withExtension:檔案尾碼

                 subdirectory:在程式包中的哪個子目錄中尋找.

                 如果沒有找到將會返回nil

                 找到後返回如下路徑: file://localhost/Users/amarishuyi/Library/Application Support/iPhone Simulator/5.1/Applications/FB0CDABC-D0E2-45FF-AA2C-959E8A65ADB4/SmallDemoList.app/KindEditor/examples/simple.html