new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,drawerListItems);
drawerList.setAdapter: Unable to start activity ComponentInfo{com.stfo.mulator/com.stfo.mulator.MainActivity}: java.lang.NullPointerExceptiondalvik.system.NativeStart.main(Native Met
我得到了这个错误:07-01 22:48:10.792android.widget.ListView.resetList(ListView.java:503)
07-01 22:48:10.792: E/AndroidRuntime(4691): at android.widget.ListView.setAdapterAndroidRuntime(4691): at da
但是下面的代码给出了NullPointerException at spinner.setAdapter(spinner_adapter)。这一切为什么要发生?spinner_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter