今天在做demo时，须要设置ListView的item的长按和点击事件。OnItemLongClickListener和OnItemClickListener，然而点击事件能够实现，可是在长按操作时会同一时候触发点击事件（长按和点击冲突），然后查看了一下Android的相关源代码，能够看到系统是优先对应clicklisener的，他是没有返回值的的。而对于OnItemLongClickListener是有一个返回值标识。

对于一次长按操作。假设返回false，则2个lisener都会对应，假设返回true则系统仅仅处理长按事件。

        因此。想要自己的OnItemLongClickListener长按事件生效，须要将返回值设为true。

以下是源代码

/**     * Interface definition for a callback to be invoked when an item in this     * AdapterView has been clicked.     */    public interface OnItemClickListener {        /**         * Callback method to be invoked when an item in this AdapterView has         * been clicked.         * 
         * Implementers can call getItemAtPosition(position) if they need         * to access the data associated with the selected item.         *         * @param parent The AdapterView where the click happened.         * @param view The view within the AdapterView that was clicked (this         *            will be a view provided by the adapter)         * @param position The position of the view in the adapter.         * @param id The row id of the item that was clicked.         */        void onItemClick(AdapterView
       parent, View view, int position, long id);    }

/**     * Interface definition for a callback to be invoked when an item in this     * view has been clicked and held.     */    public interface OnItemLongClickListener {        /**         * Callback method to be invoked when an item in this view has been         * clicked and held.         *         * Implementers can call getItemAtPosition(position) if they need to access         * the data associated with the selected item.         *         * @param parent The AbsListView where the click happened         * @param view The view within the AbsListView that was clicked         * @param position The position of the view in the list         * @param id The row id of the item that was clicked         * 源代码这里已经给出解释。假设返回值设为true。则系统消耗掉长按事件         * @return true if the callback consumed the long click, false otherwise         */        boolean onItemLongClick(AdapterView
      parent, View view, int position, long id);    }