下拉刷新SwipeRefreshLayout源码
16lz
2021-01-26
API doc：http://developer.android.com/reference/android/support/v4/widget/SwipeRefreshLayout.html
Google在support v4 19.1版本推出了一个下拉刷新组件SwipeRefreshLayout,使用起来方便，效果优美，但要注意的是其布局中只能有一个直接子布局。使用步骤如下：
1.在xml中，加载android.support.v4.widget.SwipeRefreshLayout
2.使用
package com.example.testswiperefreshlayout;import android.os.Bundle;import android.os.Handler;import android.annotation.SuppressLint;import android.app.Activity;import android.support.v4.widget.SwipeRefreshLayout;import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.TextView;public class MainActivity extends Activity implements OnRefreshListener {private SwipeRefreshLayout mSwipeRefreshLayout;private ListView mList;@SuppressLint("InlinedApi")@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mList = (ListView) findViewById(R.id.list);mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.layout_containter);mSwipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_light,android.R.color.holo_green_light,android.R.color.holo_orange_light,android.R.color.holo_red_light);mSwipeRefreshLayout.setOnRefreshListener(this);}@Overridepublic void onRefresh() {new Handler().postDelayed(new Runnable() {@Overridepublic void run() {mSwipeRefreshLayout.setRefreshing(false);mList.setAdapter(new MyAdapter());}}, 5000);}class MyAdapter extends BaseAdapter {@Overridepublic int getCount() {return 10;}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn null;}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View inflate = null;TextView tvItem = null;if (convertView == null) {inflate = getLayoutInflater().inflate(R.layout.listview_item, null);tvItem = (TextView) inflate.findViewById(R.id.tv_item);inflate.setTag(tvItem);} else {inflate = convertView;tvItem = (TextView) inflate.getTag();}tvItem.setText("下拉刷新item"+position);return inflate;}}}
源码下载地址：http://download.csdn.net/detail/dennisruan/9433027
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