baoshi-piece-android/app/src/main/java/com/baoshi/piece/base/BaseWebViewActivity.java

package com.baoshi.piece.base;

import android.annotation.SuppressLint;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.util.Log;
import android.view.KeyEvent;
import android.webkit.CookieManager;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebResourceResponse;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import androidx.annotation.Nullable;

import com.baoshi.piece.databinding.ActivityWebViewBinding;
import com.baoshi.piece.db.dao.DeliveryDao;
import com.baoshi.piece.db.po.DeliveryRecord;
import com.baoshi.piece.utils.JavaScriptInterface;
import com.baoshi.piece.utils.MacAddressUtils;
import com.yechaoa.yutils.LogUtil;
import com.yechaoa.yutils.ToastUtil;
import com.yechaoa.yutils.YUtils;

import org.apache.commons.lang3.StringUtils;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public abstract class BaseWebViewActivity extends BaseActivity<ActivityWebViewBinding> {
    private final Render render = new Render();
    private DeliveryDao deliveryDao;
    private static final int REQUEST_CODE = 1001;

    // H5地址
    protected abstract String getWebViewUrl();

    // onStart回调H5 Javascript, 默认调用onRefresh()
    protected String getCallStartJavascript() {
        return "javascript:(function() {" +
                "onRefresh()" +
                "})()";
    }

    @Override
    protected ActivityWebViewBinding bindView() {
        return ActivityWebViewBinding.inflate(getLayoutInflater());
    }

    @Override
    protected Class<? extends BaseActivity<ActivityWebViewBinding>> space() {
        return this.getClass();
    }

    @Override
    protected void init() {
        render.init();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        YUtils.showLoading(this, "加载中...");
        deliveryDao = new DeliveryDao(this);
        super.onCreate(savedInstanceState);
    }

    // 在活动由不可见变为可见的时候调用
    @Override
    protected void onStart() {
        super.onStart();
        // 调用H5 Javascript
        String jsCode = getCallStartJavascript();
        if (StringUtils.isNotEmpty(jsCode)) {
            viewBinding.webView.evaluateJavascript(jsCode, null);
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (deliveryDao != null) {
            deliveryDao.close(); // 在 DeliveryDao 中添加关闭方法
        }
        viewBinding.webView.clearCache(true); // 清除缓存
        viewBinding.webView.clearHistory(); // 清除历史记录
        viewBinding.webView.clearFormData(); // 清除表单数据
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            this.moveTaskToBack(true);
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    /**
     * 获取Header
     */
    public Map<String, String> getHeaderParams() {
        Map<String, String> params = new HashMap<>();
        params.put("Source", "app");
        return params;
    }


    /**
     * 页面渲染
     */
    private class Render {
        @SuppressLint("SetJavaScriptEnabled")
        private void init() {
            CookieManager cookieManager = CookieManager.getInstance();
            cookieManager.setAcceptCookie(true);
            cookieManager.setAcceptThirdPartyCookies(viewBinding.webView, true);

            WebSettings webSettings = viewBinding.webView.getSettings();

            // 基础设置
            webSettings.setJavaScriptEnabled(true);
            webSettings.setDomStorageEnabled(true);
            webSettings.setAllowFileAccess(true);
            // 推荐增加的现代缓存配置
            webSettings.setCacheMode(WebSettings.LOAD_DEFAULT); // 使用默认缓存策略
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                webSettings.setSafeBrowsingEnabled(true); // 启用安全浏览
            }
            // JavaScript 接口
            viewBinding.webView.addJavascriptInterface(
                    new JavaScriptInterface(getActivity(), getHeaderParams(), viewBinding.webView, deliveryDao),
                    "android"
            );

            this.inject();

            // 加载h5
            viewBinding.webView.loadUrl(getWebViewUrl(), getHeaderParams());
        }

        // 注入web加载点
        private void inject() {
            viewBinding.webView.setWebViewClient(new WebViewClient() {
                // 开始加载页面
                @Override
                public void onPageStarted(WebView view, String url, Bitmap favicon) {
                    super.onPageStarted(view, url, favicon);
                    LogUtil.d("onPageStarted: " + url);
                }

                // 完成页面加载
                @Override
                public void onPageFinished(WebView view, String url) {
                    LogUtil.d("onPageFinished: " + url);
                    super.onPageFinished(view, url);
                    YUtils.hideLoading();
                }

                // 页面加载失败
                @Override
                public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                    super.onReceivedError(view, request, error);
                    LogUtil.e("WebView加载失败url: " + request.getUrl().toString());
                    LogUtil.e("WebView加载失败原因: " + error.getDescription());
                    ToastUtil.showCenter("页面加载失败!" + error.getDescription());
                }

                // 拦截页面资源请求
                @Nullable
                @Override
                public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
                    LogUtil.d("请求地址= " + request.getUrl().toString());
                    return super.shouldInterceptRequest(view, request);
                }
            });
        }
    }

}