使用Webview实现app启动引导页

效果如下:

imageimageimageimage

首先需要一个html页面及相应的js和css支持放在assets目录下(如果没有这个目录请项目上右键-new-folder-assets)

image

配置权限:

<uses-permission android:name="android.permission.INTERNET"/>
新建一个类:WebViewLoadHtml,代码如下: 
package com.example.webviewnavigate;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class WebViewLoadHtml extends Activity {
    private String url;
    WebView webView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //将屏幕设置为全屏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        //去掉标题栏
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.webview);
        webView = (WebView)findViewById(R.id.wv_webview);
        url = "file:///android_asset/index.html";
        loadLocalHtml(url);
    }

    @SuppressLint({ "JavascriptInterface", "SetJavaScriptEnabled" })
    public void loadLocalHtml(String url){
        WebSettings ws = webView.getSettings();
        ws.setJavaScriptEnabled(true);//开启JavaScript支持
        webView.setWebViewClient(new WebViewClient(){
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                //重写此方法,用于捕捉页面上的跳转链接
                if ("http://start/".equals(url)){
                    //在html代码中的按钮跳转地址需要同此地址一致
                    Toast.makeText(getApplicationContext(), "开始体验", Toast.LENGTH_SHORT).show();
                    finish();
                }
                return true;
            }
        });
        webView.loadUrl(url);
    }
}
View Code

然后在MainActivity中调用如下: 

package com.example.webviewnavigate;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends Activity {
    Intent intent;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        intent = new Intent(this, WebViewLoadHtml.class);
        startActivity(intent);
    }

    public void onClickLoadHtml(View v){
        intent = new Intent(this, WebViewLoadHtml.class);
        startActivity(intent);
    }




}
View Code

新建一个空的view布局文件,名为webview,如: 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <WebView
        android:id="@+id/wv_webview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />
</LinearLayout>
View Code

主页按需求设计: 

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


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="这是主页"
        android:id="@+id/textView" />
</LinearLayout>
View Code

全部代码下载

 
 
 
 
 
 
 
 
posted @ 2016-08-21 21:06  石曼迪  Views(3543)  Comments(0Edit  收藏  举报
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