检查有多少sharedObject空间可用

Question

我想知道是否有方法来检查用户本地硬盘驱动器上的当前大小限制的sharedObject。

Answer 1

您可以使用SharedObject的size属性。 据我所知它显示了一个特定的SharedObject的大小，并不是所有的，因为我认为 设置选项显示。我认为100K是默认大小，并且在需要更多空间时提示用户。

有文档中一个非常方便的例子还有：

“

package { 
    import flash.display.Sprite; 
    import flash.events.MouseEvent; 
    import flash.events.NetStatusEvent; 
    import flash.net.SharedObject; 
    import flash.net.SharedObjectFlushStatus; 
    import flash.text.TextField; 
    import flash.text.TextFieldAutoSize; 
    import flash.text.TextFieldType; 

    public class SharedObjectExample extends Sprite { 

     private var mySo:SharedObject; 

     public function SharedObjectExample() { 
      buildUI(); 
      saveBtn.addEventListener(MouseEvent.CLICK, saveValue); 
      clearBtn.addEventListener(MouseEvent.CLICK, clearValue); 

      mySo = SharedObject.getLocal("application-name"); 
      output.appendText("SharedObject loaded...\n"); 
      output.appendText("loaded value: " + mySo.data.savedValue + "\n\n"); 
     } 

     private function saveValue(event:MouseEvent):void { 
      output.appendText("saving value...\n"); 
      mySo.data.savedValue = input.text; 

      var flushStatus:String = null; 
      try { 
       flushStatus = mySo.flush(10000); 
      } catch (error:Error) { 
       output.appendText("Error...Could not write SharedObject to disk\n"); 
      } 
      if (flushStatus != null) { 
       switch (flushStatus) { 
        case SharedObjectFlushStatus.PENDING: 
         output.appendText("Requesting permission to save object...\n"); 
         mySo.addEventListener(NetStatusEvent.NET_STATUS, onFlushStatus); 
         break; 
        case SharedObjectFlushStatus.FLUSHED: 
         output.appendText("Value flushed to disk.\n"); 
         break; 
       } 
      } 
      output.appendText("\n"); 
     } 

     private function clearValue(event:MouseEvent):void { 
      output.appendText("Cleared saved value...Reload SWF and the value should be \"undefined\".\n\n"); 
      delete mySo.data.savedValue; 
     } 

     private function onFlushStatus(event:NetStatusEvent):void { 
      output.appendText("User closed permission dialog...\n"); 
      switch (event.info.code) { 
       case "SharedObject.Flush.Success": 
        output.appendText("User granted permission -- value saved.\n"); 
        break; 
       case "SharedObject.Flush.Failed": 
        output.appendText("User denied permission -- value not saved.\n"); 
        break; 
      } 
      output.appendText("\n"); 

      mySo.removeEventListener(NetStatusEvent.NET_STATUS, onFlushStatus); 
     } 

     // UI elements 
     private var inputLbl:TextField; 
     private var input:TextField; 
     private var output:TextField; 
     private var saveBtn:Sprite; 
     private var clearBtn:Sprite; 

     private function buildUI():void { 
      // input label 
      inputLbl = new TextField(); 
      addChild(inputLbl); 
      inputLbl.x = 10; 
      inputLbl.y = 10; 
      inputLbl.text = "Value to save:"; 

      // input TextField 
      input = new TextField(); 
      addChild(input); 
      input.x = 80; 
      input.y = 10; 
      input.width = 100; 
      input.height = 20; 
      input.border = true; 
      input.background = true; 
      input.type = TextFieldType.INPUT; 

      // output TextField 
      output = new TextField(); 
      addChild(output); 
      output.x = 10; 
      output.y = 35; 
      output.width = 250; 
      output.height = 250; 
      output.multiline = true; 
      output.wordWrap = true; 
      output.border = true; 
      output.background = true; 

      // Save button 
      saveBtn = new Sprite(); 
      addChild(saveBtn); 
      saveBtn.x = 190; 
      saveBtn.y = 10; 
      saveBtn.useHandCursor = true; 
      saveBtn.graphics.lineStyle(1); 
      saveBtn.graphics.beginFill(0xcccccc); 
      saveBtn.graphics.drawRoundRect(0, 0, 30, 20, 5, 5); 
      var saveLbl:TextField = new TextField(); 
      saveBtn.addChild(saveLbl); 
      saveLbl.text = "Save"; 
      saveLbl.selectable = false; 

      // Clear button 
      clearBtn = new Sprite(); 
      addChild(clearBtn); 
      clearBtn.x = 230; 
      clearBtn.y = 10; 
      clearBtn.useHandCursor = true; 
      clearBtn.graphics.lineStyle(1); 
      clearBtn.graphics.beginFill(0xcccccc); 
      clearBtn.graphics.drawRoundRect(0, 0, 30, 20, 5, 5); 
      var clearLbl:TextField = new TextField(); 
      clearBtn.addChild(clearLbl); 
      clearLbl.text = "Clear"; 
      clearLbl.selectable = false; 
     } 
    } 
} 

”