[移动开发]android webview

package com.lck.linegame;

import android.os.Bundle;

import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;

import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.ClientCertRequest;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.webview_main);
        WebView webview = (WebView) findViewById(R.id.web_view);

        webview.getSettings().setJavaScriptEnabled(true);
        webview.getSettings().setUseWideViewPort(true);

        webview.getSettings().setAppCacheEnabled(true);
        webview.getSettings().setDomStorageEnabled(true);
        webview.getSettings().setAppCacheMaxSize(1024 * 1024 * 8);// 实现8倍缓存
        webview.getSettings().setAllowFileAccess(true);

        String appCachePath = getApplication().getCacheDir().getAbsolutePath();
        System.out.println("appCachePath is " + appCachePath);

        webview.getSettings().setAppCachePath(appCachePath);
        webview.getSettings().setDatabaseEnabled(true);


        webview.loadUrl("http://10.0.2.206:7456");
        System.out.println("url");

        webview.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                System.out.println("url is " + url);
                if(url.indexOf("http") >= 0) {
                    view.loadUrl(url);
                }
                return true;
            }
        });


    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.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();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}