未捕獲的處理程序：螺紋主力退出，由於未捕獲的異常

Question

激起我開始使用這種方式新的活動如下

Intent edit = new Intent(getParent(), WebViewLink.class); 
TabGroupActivity parentActivity = (TabGroupActivity) getParent(); 
edit.putExtra(POSITION, FAQ); 
parentActivity.startChildActivity("WebViewLink", edit); 

我收到錯誤這樣

08-19 13:44:49.955: ERROR/AndroidRuntime(548): Uncaught handler: thread main exiting due to uncaught exception 
08-19 13:44:49.974: ERROR/AndroidRuntime(548): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@44dabdc8 is not valid; is your activity running? 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.view.ViewRoot.setView(ViewRoot.java:468) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.view.Window$LocalWindowManager.addView(Window.java:424) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.app.Dialog.show(Dialog.java:239) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at com.stress.WebViewLink$2.onLoadResource(WebViewLink.java:73) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:355) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.os.Handler.dispatchMessage(Handler.java:99) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.os.Looper.loop(Looper.java:123) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at android.app.ActivityThread.main(ActivityThread.java:4363) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at java.lang.reflect.Method.invokeNative(Native Method) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at java.lang.reflect.Method.invoke(Method.java:521) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
08-19 13:44:49.974: ERROR/AndroidRuntime(548):  at dalvik.system.NativeStart.main(Native Method) 

，但是當我使用這種方式撥打新活動沒有問題

Intent edit = new Intent(getParent(), WebViewLink.class); 
edit.putExtra(POSITION, FAQ); 
More.this.startActivity(edit); 

你可以在這裏看到我的WebViewLink.java類

public class WebViewLink extends Activity { 
public static String POSITION = "position"; 
int position = 0; 
private Button back; 
private TextView ttl; 
ProgressDialog myProgressDialog = null; 
private WebView webView; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    requestWindowFeature(Window.FEATURE_NO_TITLE); 
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
      WindowManager.LayoutParams.FLAG_FULLSCREEN); 
    setContentView(R.layout.webview); 

    webView = (WebView) findViewById(R.id.webview); 
    back = (Button) findViewById(R.id.backtomore); 
    ttl = (TextView) findViewById(R.id.my_title); 
    webView.getSettings().setJavaScriptEnabled(true); 
    if (getIntent().getExtras() != null) { 
     if (getIntent().getExtras().containsKey(POSITION)) { 
      position = getIntent().getExtras().getInt(POSITION); 
     } 
    } 
    switch (position) { 
    case More.FAQ: 
     ttl.setText("FAQ"); 
     setWebLink(); 
     webView.loadUrl("file:///android_asset/faq4.htm"); 
     break; 
    case More.ABOUT_US: 
     ttl.setText("About Us"); 
     setWebLink(); 
     webView.loadUrl("file:///android_asset/Advice/About Us.html"); 
     break; 
    case More.DISCLAIMMER: 
     ttl.setText("Disclaimer"); 
     setWebLink(); 
     webView.loadUrl("file:///android_asset/Advice/Disclaimer.html"); 
     break; 
    } 
    back.setOnClickListener(new OnClickListener() { 
     public void onClick(View v) { 
      finish(); 
     } 
    }); 
} 

private void setWebLink() { 
    webView.setWebViewClient(new WebViewClient() { 
     public boolean shouldOverrideUrlLoading(WebView view, String url) { 
      view.loadUrl(url); 
      return true; 
     } 
     public void onLoadResource(WebView view, String url) { 
      if (myProgressDialog == null) { 
       myProgressDialog = new ProgressDialog(WebViewLink.this); 
       myProgressDialog.setMessage("Loading.... Please Wait"); 
       myProgressDialog.show(); 
      } 
     } 
     public void onPageFinished(WebView view, String url) { 
      if (myProgressDialog.isShowing()) { 
       myProgressDialog.dismiss(); 
      } 
     } 
    }); 
} 

}

Answer 1

的問題是在這行代碼：

myProgressDialog = new ProgressDialog(WebViewLink.this); 

當你是你TabGroupActivity然後孩子Activity（IES）需要父母的Context添加新的窗口，對話框。試試這個方法：

myProgressDialog = new ProgressDialog(WebViewLink.this.getParent()); 

，併爲所有Dialog就做相同的。

Answer 2

08-19 13:44:49.974: ERROR/AndroidRuntime(548): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@44dabdc8 is not valid; is your activity running? 

上面的錯誤說你的活動沒有運行。所以，當你使用下面的指令調用這個活動，然後程序crash.because它不能得到任何活動。

TabGroupActivity parentActivity = (TabGroupActivity) getParent();