Android中SwipeRefreshLayout和listview的冲突解决办法

SwipeRefreshLayout和listview的冲突解决办法

       在google放出了SwipeRefreshLayout之后,就再也不用辛辛苦苦的用上百行代码来实现下拉刷新了(不过还是需要理解透彻以前版本的下拉刷新是如何实现的),在用的过程中,为了使我们的程序更加的好看,大家肯定想过把各种能滑动的东西结合起来,swiperefreshlayout和listview或者是可以滑动的scrollview结合起来的时候,不免也碰到了冲突的问题.

      现在就来奉上一种处理冲突的方法,先上一段使用swiperefreshlayout的代码.....

<android.support.v4.widget.SwipeRefreshLayout    android:layout_width="match_parent"    android:layout_height="match_parent"    xmlns:android="http://schemas.android.com/apk/res/android"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:paddingBottom="@dimen/activity_vertical_margin"    android:id="@+id/swipe">    <ListView        android:layout_width="match_parent"        android:layout_height="match_parent">        <RelativeLayout            android:layout_width="match_parent"            android:layout_height="match_parent">            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="Random number:"                android:id="@+id/lbl"/>            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:id="@+id/rndNum"                android:layout_toRightOf="@id/lbl"/>            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_below="@id/lbl"                android:layout_centerHorizontal="true"                android:layout_marginTop="20dp"                android:text="Swipe to Refresh"                style="@android:style/TextAppearance.Medium"/>        </RelativeLayout>    </ListView></android.support.v4.widget.SwipeRefreshLayout>

...    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        final SwipeRefreshLayout swipeView = (SwipeRefreshLayout) findViewById(R.id.swipe);        final TextView rndNum = (TextView) findViewById(R.id.rndNum);        swipeView.setColorScheme(android.R.color.holo_blue_dark, android.R.color.holo_blue_light, android.R.color.holo_green_light, android.R.color.holo_green_light);        swipeView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {            @Override            public void onRefresh() {                swipeView.setRefreshing(true);                Log.d("Swipe", "Refreshing Number");                ( new Handler()).postDelayed(new Runnable() {                    @Override                    public void run() {                        swipeView.setRefreshing(false);                        double f = Math.random();                        rndNum.setText(String.valueOf(f));                    }                }, 3000);            }        });    }....

这样的话,在里面直接上一个listview会和swiperefreshlayout的下拉刷新冲突,怎么样解决这个问题呢?先说一下思路,在listview向下各种滚动的过程中,可以加上一个OnScrollListener,监听listview是否滑到了最顶端的一个item,如果在最顶端,就将swiperefreshlayout设置成setEnabled(true),如果不再最顶端,就设置成setEnabled(false),这样就可以阻止冲突了~~~~~~其他的也可以模仿这种处理形式...

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    final SwipeRefreshLayout swipeView = (SwipeRefreshLayout) findViewById(R.id.swipe);    swipeView.setEnabled(false);    ListView lView = (ListView) findViewById(R.id.list);    ArrayAdapter<String> adp = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, createItems(40,0 ));    lView.setAdapter(adp);    swipeView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {        @Override        public void onRefresh() {            swipeView.setRefreshing(true);            ( new Handler()).postDelayed(new Runnable() {                @Override                public void run() {                    swipeView.setRefreshing(false);                }            }, 3000);        }    });    lView.setOnScrollListener(new AbsListView.OnScrollListener() {        @Override        public void onScrollStateChanged(AbsListView absListView, int i) {        }        @Override        public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount, int totalItemCount) {                if (firstVisibleItem == 0)                    swipeView.setEnabled(true);                else                    swipeView.setEnabled(false);        }    });}