package com.mytestapp;
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import androidx.appcompat.app.AppCompatActivity;
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import android.app.Activity;
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import android.content.Intent;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.JavascriptInterface;
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import android.webkit.JsResult;
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import android.webkit.WebChromeClient;
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import android.webkit.WebSettings;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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import android.widget.Toast;
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import android.widget.ZoomButtonsController;
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import java.lang.reflect.Field;
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import java.util.Date;
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public class MainActivity extends BaseActivity {
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private static final String TAG = "MainActivity";
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private WebView webView;
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private CrashMonitor crashMonitor = null;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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final ServerInfo serverInfo = ServerInfo.readServerInfo(MainActivity.this);
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if(serverInfo == null){
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}
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webView = (WebView) findViewById(R.id.mywebview);
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webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
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WebSettings webSettings = webView.getSettings();
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webSettings.setJavaScriptEnabled(true);
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webSettings.setBuiltInZoomControls(true);
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webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE); //不适用缓存
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webView.clearCache(true);
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webView.setBackgroundColor(android.R.color.transparent);
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webView.setBackgroundResource(R.drawable.first_bg);
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webView.loadUrl(serverInfo.createServerUrl());
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webSettings.setDisplayZoomControls(false);
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setZoomControlGone(webView);
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webView.setWebViewClient(new MyWebViewClient());
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webView.setWebChromeClient(new WebChromeClient(){
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@Override
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public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
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Toast.makeText(MainActivity.this,message,Toast.LENGTH_SHORT).show();
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return true;
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}
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@Override
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public void onProgressChanged(WebView view, int newProgress) {
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super.onProgressChanged(view, newProgress);
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if(newProgress == 100 ){
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//加载完成
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//Toast.makeText(MainActivity.this,"加载完成",Toast.LENGTH_SHORT).show();
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}else{
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//加载中
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}
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}
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});
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CrashHandler crashHandler = CrashHandler.getInstance();
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crashHandler.init(MainActivity.this);
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crashMonitor = CrashMonitor.createCrashMonitor();
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webView.addJavascriptInterface(new HeartJavaScriptFunction() {
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@JavascriptInterface
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public void onJsFunctionCalled(int tag) {
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if(crashMonitor != null){
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if(2000 == tag){
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crashMonitor.updateTimer(new Date().getTime());
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}
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//Log.e(TAG, "onJsFunctionCalled : "+tag );
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if(!crashMonitor.isWorking()){
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//Log.e(TAG, "onJsFunctionCalled: isWorking ................" );
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crashMonitor.monitorPageCrashed(tag);
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}
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}
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}
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@JavascriptInterface
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public void saveServerInfo(String server_ip,int server_port){
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ServerInfo serverInfo1 = new ServerInfo();
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serverInfo1.setServer_ip(server_ip);
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serverInfo1.setServer_port(server_port);
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ServerInfo.WriteServerInfo(MainActivity.this,serverInfo1);
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}
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@JavascriptInterface
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public void reStartSystem(){
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//Intent intent = new Intent(MainActivity.this,LoginActivity.class);
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//startActivity(intent);
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// 找到这个 webview
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crashMonitor.destory();
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crashMonitor = null;
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// 加载一个空的url 或者content即可。
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runOnUiThread(new Runnable() {
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@Override
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public void run() {
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if (webView != null) {
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webView.loadDataWithBaseURL(null, "", "text/html", "utf-8", null);
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webView.clearHistory();
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((ViewGroup) webView.getParent()).removeView(webView);
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webView.destroy();
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webView = null;
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}
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}
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});
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MainActivity.this.finish();
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}
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}, "Android");
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crashMonitor.setOnCrashedListener(new CrashMonitor.OnCrashedListener() {
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@Override
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public void onCrashed() {
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//Log.e(TAG, "onCrashed: 页面卡死进入登陆页面" );
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Intent intent = new Intent(MainActivity.this,LoginActivity.class);
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startActivity(intent);
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}
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});
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}
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@Override
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protected void onDestroy() {
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if (webView != null) {
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webView.loadDataWithBaseURL(null, "", "text/html", "utf-8", null);
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webView.clearHistory();
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((ViewGroup) webView.getParent()).removeView(webView);
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webView.destroy();
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webView = null;
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}
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super.onDestroy();
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}
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protected int getLayoutRes() {
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return R.layout.activity_main;
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}
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/**
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* 为了能够响应链接继续在本webview控件中显示，要声明此类。
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* 如果没有这个类，点击了一个链接后，系统会自动选择浏览器浏览
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*/
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private class MyWebViewClient extends WebViewClient {
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@Override
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public boolean shouldOverrideUrlLoading(WebView view, String url) {
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view.loadUrl(url);
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return true;
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}
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}
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/**
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* 设置webview的后退，如果后退没有网页了，则关闭该activity
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*/
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
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webView.goBack();
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return true;
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}
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return super.onKeyDown(keyCode, event);
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}
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/**
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* 隐藏放大缩小控件
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*/
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public void setZoomControlGone(View view) {
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Class classType;
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Field field;
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try {
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classType = WebView.class;
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field = classType.getDeclaredField("mZoomButtonsController");
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field.setAccessible(true);
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ZoomButtonsController mZoomButtonsController = new ZoomButtonsController(
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view);
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mZoomButtonsController.getZoomControls().setVisibility(View.GONE);
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try {
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field.set(view, mZoomButtonsController);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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} catch (SecurityException e) {
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e.printStackTrace();
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} catch (NoSuchFieldException e) {
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e.printStackTrace();
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}
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}
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}
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