TabGroup内的MapActivity和处理onTap ovelay项

时间：2012-03-11 14:29:58

标签： android

我正在尝试在TabGroup中使用MapActivity，问题是在处理onTap（int）时，Itemized Overlay我得到空指针异常。没有与父母一起调用（TabGroup。）

，它工作得很好 
protected boolean onTap(int index) {
    Intent i=new Intent(mContext,ViewProfileActivity.class);
    TabGroupActivity parent=(TabGroupActivity) activity.getParent();
    parent.startChildActivity("ViewProfileActivity", i);
}

早些时候这个工作正常：

protected boolean onTap(int index) {
    Intent i=new Intent(mContext,ViewProfileActivity.class);
    mContext.startActivity(i);
}

logcat的：

> 03-11 17:58:58.240: E/AndroidRuntime(28791): FATAL EXCEPTION: main
> 03-11 17:58:58.240: E/AndroidRuntime(28791):
> java.lang.NullPointerException 03-11 17:58:58.240:
> E/AndroidRuntime(28791):  at
> com.google.android.maps.GestureDetector.onTouchEvent(GestureDetector.java:548)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> com.google.android.maps.MapView.onTouchEvent(MapView.java:683) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.View.dispatchTouchEvent(View.java:4621) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1554)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1320) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1863)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1287)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.app.Activity.dispatchTouchEvent(Activity.java:2309) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1836)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1863)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1287)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.app.Activity.dispatchTouchEvent(Activity.java:2309) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1836)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1560)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1333) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1863)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1287)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.app.Activity.dispatchTouchEvent(Activity.java:2309) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1836)
> 03-11 17:58:58.240: E/AndroidRuntime(28791):  at
> android.view.View.dispatchPointerEvent(View.java:4689) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewRoot.deliverPointerEvent(ViewRoot.java:2365) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.view.ViewRoot.handleMessage(ViewRoot.java:2034) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.os.Handler.dispatchMessage(Handler.java:99) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> android.os.Looper.loop(Looper.java:132) 03-11 17:58:58.240:
> E/AndroidRuntime(28791):  at
> android.app.ActivityThread.main(ActivityThread.java:4028) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> java.lang.reflect.Method.invokeNative(Native Method) 03-11
> 17:58:58.240: E/AndroidRuntime(28791):    at
> java.lang.reflect.Method.invoke(Method.java:491) 03-11 17:58:58.240:
> E/AndroidRuntime(28791):  at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(Zyg

谢谢，

0 个答案:

没有答案
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