android WebView 简单使用Demo

activity配置文件：activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" >

<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" >

<EditText android:id="@+id/et_address" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="0.5" android:text="http://www.baidu.com" />

<Button android:id="@+id/search" android:layout_width="101dp" android:layout_height="match_parent" android:onClick="click" android:text="Search" /> </LinearLayout>

<WebView android:id="@+id/myWebView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="0.08" />

</LinearLayout>

MainActivity.java

package com.example.mybrowser; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; public class MainActivity extends Activity { private static final String URL ="http://www.baidu.com"; private EditText et_address; private WebView myWebView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); et_address = (EditText) findViewById(R.id.et_address); myWebView = (WebView) findViewById(R.id.myWebView); WebSettings mysettings = myWebView.getSettings(); mysettings.setSupportZoom(true); mysettings.setBuiltInZoomControls(true); myWebView.setWebViewClient(new WebViewClient()); } @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); menu.addSubMenu(0,0,0,"刷新"); menu.addSubMenu(0,0,1,"前进"); menu.addSubMenu(0,0,2,"后退"); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getOrder()) { case 0: myWebView.reload(); break; case 1: if(myWebView.canGoBack()){ myWebView.goBack(); } else { } break; case 2: if(myWebView.canGoForward()){ myWebView.goForward(); } break; } return true; } public void click(View v){ String url = et_address .getText().toString().trim(); if(url == null || url.isEmpty()){ url =URL; } myWebView.loadUrl(url); } }

记得清单配置文件中加入访问网络的权限：

  <uses-permission android:name="android.permission.INTERNET"/>

 

效果图如下：

 

转载于:https://www.cnblogs.com/sz-xxc-1234/p/4299010.html

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