從Android調用Android方法Android'CalledFromWrongThreadException'

我有webview，我在android中使用地理位置功能。我使用JavaScript（onload事件）來調用Android的方法從Android調用Android方法Android'CalledFromWrongThreadException'

public void getLocation() { 
    _context.getLocation(); 
}

當位置收到此執行

public void locationUpdated(Location location) { 
     NumberFormat frm = NumberFormat.getNumberInstance(new Locale("en_US")); 
     // call javascript function 
     webView.loadUrl("javascript:locationChangedHandler(" + frm.format (location.getLatitude()) + "," + frm.format(location.getLongitude()) + ")"); 
}

有時我得到這個例外，這個例外

04-04 01:17:06.262: ERROR/AndroidRuntime(659): FATAL EXCEPTION: Timer-1 
     android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. 
     at android.view.ViewRoot.checkThread(ViewRoot.java:2802) 
     at android.view.ViewRoot.invalidateChild(ViewRoot.java:607) 
     at android.view.ViewRoot.invalidateChildInParent(ViewRoot.java:633) 
     at android.view.ViewGroup.invalidateChild(ViewGroup.java:2505) 
     at android.view.View.invalidate(View.java:5139) 
     at android.view.View.onFocusChanged(View.java:2664) 
     at android.widget.TextView.onFocusChanged(TextView.java:6469) 
     at android.widget.AutoCompleteTextView.onFocusChanged(AutoCompleteTextView.java:1048) 
     at android.webkit.WebTextView.onFocusChanged(WebTextView.java:357) 
     at android.view.View.clearFocusForRemoval(View.java:2577) 
     at android.view.ViewGroup.removeViewInternal(ViewGroup.java:2188) 
     at android.view.ViewGroup.removeViewInternal(ViewGroup.java:2181) 
     at android.view.ViewGroup.removeView(ViewGroup.java:2129) 
     at android.webkit.WebTextView.remove(WebTextView.java:583) 
     at android.webkit.WebView.clearTextEntry(WebView.java:1830) 
     at android.webkit.WebView.loadUrl(WebView.java:1542) 
     at android.webkit.WebView.loadUrl(WebView.java:1553) 
     at com.binus.MainView$1.gotLocation(MainView.java:33) 
     at com.binus.GeoLocation$GetLastLocation.run(GeoLocation.java:88) 
     at java.util.Timer$TimerImpl.run(Timer.java:289)

是這是從其他線程訪問UI線程的東西嗎？正在從非UI線程調用Android（Java）方法執行嗎？

以及如何使我的代碼線程安全？

來源

2011-04-04 F8R

我不知道你是怎麼過的UI線程，但要回你可以使用post：

public void locationUpdated(final Location location) { 
    post(new Runnable() { 
     @Override 
     public void run() { 
      webView.loadUrl(...); 
     } 
    }); 
}

如果你是一個View內。如果您在Activity中，則將post更改爲runOnUiThread。

來源

2011-04-04 01:40:11

謝謝你的工作，：D。 – F8R 2011-04-04 01:41:43

UPVOTE bigtime !!!!多謝 – Arnold 2011-12-12 14:05:19

從Android調用Android方法Android'CalledFromWrongThreadException'

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