WebView 实现MiniBrowser

时间：2021-06-22 15:09:58
package org.hjw.minibrowser;

import android.os.Bundle;

import android.app.Activity;

import android.view.KeyEvent;

import android.view.Menu;

import android.view.View;

import android.webkit.WebSettings;

import android.webkit.WebView;

import android.webkit.WebViewClient;

import android.widget.Button;

import android.widget.EditText;

publicclass MainActivity extends Activity {

    EditText url;

    Button go;

    WebView web;

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        url = (EditText) findViewById(R.id.url);

        go = (Button) findViewById(R.id.go);

        web = (WebView) findViewById(R.id.myWebview);

        WebSettings webSettings = web.getSettings();// 允许使用JS

        webSettings.setJavaScriptEnabled(true);

        web.setWebViewClient(new WebViewClient() {

            publicboolean shouldOverrideUrlLoading(WebView view, String url) {

                view.loadUrl(url);

                returntrue;

            }

        });// 允许内部跳转

        go.setOnClickListener(new View.OnClickListener() {

            @Override

            publicvoid onClick(View v) {

                web.loadUrl(url.getText().toString());

            }

        });

    }

    publicboolean onKeyDown(int keyCode, KeyEvent event) {//重写回退时间if ((keyCode == KeyEvent.KEYCODE_BACK) && web.canGoBack()) {

            web.goBack();

            returntrue;

        }

        returnsuper.onKeyDown(keyCode, event);

    }

    @Override

    publicboolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);

        returntrue;

    }

}
WebView 实现MiniBrowser

Ps.1.通过WebSettings对象设置允许使用JS.

2.重写OnKeyDown方法实现按Back键返回上一页.

3.使用setWebViewClient方法,实现内部跳转.

4.基本的miniBrowser就完成了.

 
 

相关文章