2012-03-17 35 views
0

我已經爲WebView添加了JavaScript接口。帶參數的WebView addJavascriptInterface函數

我能夠使用所有沒有參數的函數。

但是當我從JavaScript給參數。該功能不被WebView調用。

見代碼

的Javascript

 function getCellString(row, column) { 
      return Report.getCellString(row,column); 
     } 

的WebView

webView.addJavascriptInterface(new JavaScriptInterface(), "Report"); 

JavaScript接口,

public class JavaScriptInterface 
{ 
public String getCellString(int row, int column) 
{ 
    return row + "," + column; 
} 
} 

我不知道是否是因爲字符串返回類型或T他爲函數的參數。

EDITED

我想沒有給出參數的getCellString()仍是不被調用。

這意味着問題與返回類型。我給了不是原始數據類型的字符串返回類型。

任何人都可以告訴我什麼樣的數據類型應該代替字符串,以便它接受。

logcat的後addJavaScriptInterface

03-17 17:52:26.748: V/webcore(19908): ADD_JS_INTERFACE arg1=0 arg2=0 [email protected] 
03-17 17:52:26.858: V/webcore(19908): LOAD_URL arg1=0 arg2=0 [email protected] 
03-17 17:52:26.858: V/webcore(19908): CORE loadUrl file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.858: V/webkit(19908): startLoadingResource: url=file:///data/data/mypackage/cache/html_report/ReportHTML.html, method=GET, postData=null, isMainFramePage=true, mainResource=true, userGesture=true 
03-17 17:52:26.858: V/webkit(19908): LoadListener constructor url=file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.868: V/webview(19908): WEBCORE_INITIALIZED_MSG_ID 
03-17 17:52:26.868: V/webkit(19908): LoadListener: from: file:///data/data/mypackage/cache/html_report/ReportHTML.html major: 1 minor: 1 code: 200 reason: OK 
03-17 17:52:26.878: V/webkit(19908): LoadListener.headers 
03-17 17:52:26.878: V/webcore(19908): 200 arg1=0 arg2=0 obj=null 
03-17 17:52:26.878: V/webkit(19908): LoadListener.data(): url: file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.878: V/webkit(19908): LoadListener.data(): url: file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.888: V/webkit(19908): LoadListener.endData(): url: file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.898: V/webkit(19908): guessMimeTypeFromExtension: url = file:///data/data/mypackage/cache/html_report/ReportHTML.html 
03-17 17:52:26.908: V/webview(19908): sendOurVisibleRect=(0,55,r=240,b=320 
03-17 17:52:26.908: V/webview(19908): setCertificate=null 
03-17 17:52:26.988: V/webkit(19908): LoadListener.detachRequestHandle(): requestHandle: null 
03-17 17:52:27.098: V/webview(19908): SET_SCROLLBAR_MODES 
03-17 17:52:27.098: V/webview(19908): SET_SCROLLBAR_MODES 
03-17 17:52:27.098: V/webview(19908): SET_SCROLLBAR_MODES 
03-17 17:52:27.098: V/webcore(19908): didFirstLayout standardLoad =true 
03-17 17:52:27.108: V/webcore(19908): SET_SCROLL_OFFSET arg1=0 arg2=0 obj=Point(0, 0) 
03-17 17:52:27.108: V/webview(19908): UPDATE_TEXT_ENTRY_MSG_ID 
03-17 17:52:27.108: V/webcore(19908): SET_GLOBAL_BOUNDS arg1=0 arg2=0 obj=Rect(0, 55 - 240, 320) 
03-17 17:52:27.118: V/webcore(19908): VIEW_SIZE_CHANGED arg1=0 arg2=0 [email protected] 
03-17 17:52:27.118: V/webcore(19908): viewSizeChanged w=313; h=353; textwrapWidth=313; scale=0.75 
03-17 17:52:27.118: V/webcore(19908): viewSizeChanged 
03-17 17:52:27.118: V/webcore(19908): SET_ACTIVE arg1=0 arg2=0 obj=null 
03-17 17:52:27.128: V/webcore(19908): WEBKIT_DRAW arg1=0 arg2=0 obj=null 
03-17 17:52:27.128: V/webcore(19908): webkitDraw start 
03-17 17:52:27.128: V/webcore(19908): webkitDraw NEW_PICTURE_MSG_ID 
03-17 17:52:27.128: V/webcore(19908): UPDATE_CACHE_AND_TEXT_ENTRY arg1=0 arg2=0 obj=null 
03-17 17:52:27.128: V/webview(19908): NEW_PICTURE_MSG_ID 
03-17 17:52:27.128: V/webview(19908): NEW_PICTURE_MSG_ID {0,0,313,353} 
03-17 17:52:27.128: V/webview(19908): UPDATE_TEXT_ENTRY_MSG_ID 
03-17 17:53:28.266: V/websync(19908): *** WebSyncManager sync *** 
03-17 17:53:28.266: V/websync(19908): CookieSyncManager::syncFromRamToFlash STARTS 
03-17 17:53:28.268: V/websync(19908): CookieSyncManager::syncFromRamToFlash DONE 
+0

是'row'和'column'整數你的JavaScript代碼中的值?你在LogCat中看到任何消息嗎?返回一個'字符串'是沒有問題的 - 我有示例代碼可以做到這一點。 – CommonsWare 2012-03-17 12:19:48

+0

如果您有String的示例代碼,請在解決方案中給出。 – 2012-03-17 12:23:37

+0

此目錄包含一對使用'addJavaScriptInterface()'的項目:https://github.com/commonsguy/cw-advandroid/tree/master/WebView – CommonsWare 2012-03-17 12:46:08

回答

2

如果從intString改變方法參數,則函數應該從WebView中可以調用:

public String getCellString(String row, String column) 
{ 
    return row + "," + column; 
}