一个android的webview的例证
一个android的webview的例子
截图如图所示。
核心部分代码
package com.example.app;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.os.Handler;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.webkit.WebSettings.LayoutAlgorithm;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.os.Build;
public class MainActivity extends ActionBarActivity {
private TextView mNews;
private TextView interview;
private WebView mWebView;
final int RIGHT = 0;
final int LEFT = 1;
private GestureDetector gestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebViewClient(new webViewClient());
mWebView.setHorizontalScrollBarEnabled(false);
mWebView.getSettings().setLoadWithOverviewMode(true);
mWebView.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
mWebView.loadUrl("http://www.itbuluoge.com/app/index.php?action=interview");
mNews=(TextView)findViewById(R.id.news);
mNews.setClickable(true); //设置tv为可点击。
mNews.setOnTouchListener(new OnTouchListener()
{ //添加OnClickListener
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
mWebView.loadUrl("http://www.itbuluoge.com/app/index.php?action=news");
return false;
}
});
interview=(TextView)findViewById(R.id.interview);
interview.setClickable(true); //设置tv为可点击。
interview.setOnTouchListener(new OnTouchListener()
{ //添加OnClickListener
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
mWebView.loadUrl("http://www.itbuluoge.com/app/index.php?action=interview");
return false;
}
});
gestureDetector = new GestureDetector(MainActivity.this,onGestureListener);
/*
listView=(ListView)this.findViewById(R.id.listView);
//生成动态数组，加入数据
ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>();
for(int i=0;i<10;i++)
{
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("title", "百度面试经验指南 "+i);
map.put("datetime", "2月4号"+i);
listItem.add(map);
}
//生成适配器的Item和动态数组对应的元素
SimpleAdapter listItemAdapter = new SimpleAdapter(this,listItem,//数据源
R.layout.item,//ListItem的XML实现
//动态数组与ImageItem对应的子项
new String[] {"title","datetime"},
//ImageItem的XML文件里面的一个ImageView,两个TextView ID
new int[] {R.id.title,R.id.datetime}
);
//添加并且显示
listView.setAdapter(listItemAdapter);
*/
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
/*
private void show() {
// TODO Auto-generated method stub
List<String> data = new ArrayList<String>();
List<HashMap<String,Object>> data=new ArrayList<HashMap<String,Object>>();
for(news str :list)
{
HashMap<String,Object> item= new HashMap<String,Object>();
item.put("title", str.title);
item.put("datetime", str.datetime);
}
SimpleAdapter adapter=new SimpleAdapter(this,data,R.layout.item,new String[]{"title","datetime"},new int[]{R.id.title,R.id.datetime});
listView.setAdapter(adapter);
}
*/
private GestureDetector.OnGestureListener onGestureListener =
new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
float x = e2.getX() - e1.getX();
float y = e2.getY() - e1.getY();
if (x > 0) {
doResult(RIGHT);
} else if (x < 0) {
doResult(LEFT);
}
return true;
}
};
public boolean onTouchEvent(MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
public void doResult(int action) {
if(action==0)//右边
{
this.mWebView.loadUrl("http://www.itbuluoge.com/app/index.php?action=interview");
}
else
{
this.mWebView.loadUrl("http://www.itbuluoge.com/app/index.php?action=news");
}
}
private List<String> getData() {
// TODO Auto-generated method stub
List<String> data = new ArrayList<String>();
data.add("测试数据1");
data.add("测试数据2");
data.add("测试数据3");
data.add("测试数据4");
return data;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
class webViewClient extends WebViewClient{
//重写shouldOverrideUrlLoading方法，使点击链接后不使用其他的浏览器打开。
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
//如果不需要其他对点击链接事件的处理返回true，否则返回false
return true;
}
}
}
采用webview，并且处理了禁止了页面横条的效果。
下载地址：http://download.csdn.net/detail/jianghuihong2012/7502237
IT部落格(http://www.itbuluoge.com)-快乐快速学习,专注于免费编程教程，在线编程，IT面试笔记，IT面试经验