java与js互调 调用系统播放器

Posted 2020-12-25 znsongshu

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.androidandh5.JsCallJavaCallPhoneActivity">

    <WebView
        android:id="@+id/webview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</RelativeLayout>

 

public class JsCallJavaVideoActivity extends Activity {

    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_js_call_java_video);
        webView = (WebView) findViewById(R.id.webview);
        WebSettings webSettings = webView.getSettings();
        //设置支持javascript脚步语言
        webSettings.setJavaScriptEnabled(true);

        //支持双击-前提是页面要支持才显示
//        webSettings.setUseWideViewPort(true);

        //支持缩放按钮-前提是页面要支持才显示
        webSettings.setBuiltInZoomControls(true);

        //设置客户端-不跳转到默认浏览器中
        webView.setWebViewClient(new WebViewClient());

        //设置支持js调用java
        webView.addJavascriptInterface(new AndroidAndJSInterface(),"android");

        //加载网络资源
//        webView.loadUrl("http://atguigu.com/teacher.shtml");
        webView.loadUrl("file:///android_asset/RealNetJSCallJavaActivity.htm");
//        webView.loadUrl("http://10.0.2.2:8080/assets/RealNetJSCallJavaActivity.htm");

    }

    class AndroidAndJSInterface {
        /**
         * 该方法将被js调用
         * @param id
         * @param videoUrl
         * @param tile
         */
        @JavascriptInterface
        public void playVideo(int id,String videoUrl,String tile){
            //调起系统所有播放器
            Intent intent = new Intent();
            intent.setDataAndType(Uri.parse(videoUrl),"video/*");
            startActivity(intent);
        }
    }
}