Android 5.0特性（SwipeRefreshLayout）

1，实现效果

实现下来刷新

Android 5.0特性（SwipeRefreshLayout）_第1张图片

2，实现效果

【1】添加依赖，导入V7包SwipeRefreshLayout是V4包下的，V7保护我

compile 'com.android.support:appcompat-v7:23.4.0'

添加网络权限

【2】把需要展示的内容用SwipeRefreshLayout包裹

<?xml version="1.0" encoding="utf-8"?>

【3】代码调用

获取控件
设置外观颜色（可以设置多种颜色的转变）

// refreshlayout.setColorSchemeColors(Color.RED);

refreshlayout.setColorSchemeColors(Color.RED,Color.GREEN,Color.YELLOW);

设置监听，当松开的时候进行业务逻辑处理

   SwipeRefreshLayout.OnRefreshListener listener=new SwipeRefreshLayout.OnRefreshListener() {            //松开布局            @Override            public void onRefresh() {                webView.loadUrl("http://www.itheima.com");            }        };        refreshlayout.setOnRefreshListener(listener);

实现代码

public class MainActivity extends AppCompatActivity {    private WebView webView;    private SwipeRefreshLayout refreshlayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        refreshlayout = (SwipeRefreshLayout) findViewById(R.id.refreshlayout);        //设置外观        // refreshlayout.setColorSchemeColors(Color.RED);        refreshlayout.setColorSchemeColors(Color.RED,Color.GREEN,Color.YELLOW);        SwipeRefreshLayout.OnRefreshListener listener=new SwipeRefreshLayout.OnRefreshListener() {            //松开布局            @Override            public void onRefresh() {                webView.loadUrl("http://www.itheima.com");            }        };        refreshlayout.setOnRefreshListener(listener);        webView = (WebView) findViewById(R.id.webview);        String url="http://www.baidu.com";        ///设置一个禁止调用系统浏览器的对象        webView.setWebViewClient(new WebViewClient());        //WebChromeClient设置 处理页面加载进度        webView.setWebChromeClient(new WebChromeClient(){            @Override            public void onProgressChanged(WebView view, int newProgress) {                super.onProgressChanged(view, newProgress);                if (newProgress == 100) {                    refreshlayout.setRefreshing(false);//关闭刷新                }            }        });        webView.loadUrl(url);    }}

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