取消自动获得焦点和弹出对话框

!-- Dummy item to prevent AutoCompleteTextView from receiving focus --> <LinearLayout     android:focusable="true" android:focusableInTouchMode="true"     android:layout_width="0px" android:layout_height="0px"/> <!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component      to prevent the dummy from receiving focus again --> <AutoCompleteTextView android:id="@+id/text"         android:layout_width="fill_parent" android:layout_height="wrap_content"         android:nextFocusUp="@+id/text" android:nextFocusLeft="@+id/text"/>上面是为了防止

AutoCompleteTextView开始就获得焦点，所以在他的父层设置了焦点设置