使用Xposed强制androidwebView开启debug

从 https://developer.chrome.com/devtools/docs/remote-debugging 我们可以知道在android 4.4+可以通过在apk中使用下面的代码开启webview的chrome远程调试

1 2	WebView.setWebContentsDebuggingEnabled(<span class="keyword">true</span>);

但我们开发中接触的apk往往是第三方的，没谁会为我们开启webContentsDebuggingEnabled。而Xposed能强制做到这一点

Xposed

Xposed能够勾住(Hook) Android应用程序对象的方法，实现AOP，一个简单的例子：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

<span class="keyword">public</span> <span class="keyword">class</span> WebViewHook <span class="keyword">implements</span> IXposedHookLoadPackage {     <span class="comment">// handleLoadPackage 会在android加载每一个apk后执行</span>     <span class="keyword">public</span> void handleLoadPackage(LoadPackageParam lpparam) throws Throwable {         <span class="comment">// 可以从lpparam中获取当前apk的名字</span>         <span class="keyword">if</span> (! lpparam.packageName.equals(<span class="string">"com.tencent.mobileqq"</span>)) {             <span class="keyword">return</span>;         }         XposedBridge.log(<span class="string">"WebViewHook handleLoadPackage: "</span> + lpparam.packageName);         <span class="comment">// 勾住 WebView 所有的构造器</span>         XposedBridge.hookAllConstructors(WebView.<span class="keyword">class</span>, <span class="keyword">new</span> XC_MethodHook() {             @Override             <span class="keyword">protected</span> void beforeHookedMethod(MethodHookParam param) throws Throwable {                 <span class="comment">// 打开webContentsDebuggingEnabled</span>                 XposedHelpers.callStaticMethod(WebView.<span class="keyword">class</span>, <span class="string">"setWebContentsDebuggingEnabled"</span>, <span class="keyword">true</span>);                 XposedBridge.log(<span class="string">"WebViewHook new WebView(): "</span> + packageName);             }         });     } }

上面的代码可以为QQ打开WebView的webContentsDebuggingEnabled

Xposed工作原理可以参考文档： https://github.com/rovo89/XposedBridge/wiki/Development-tutorial

没有详细的API页面， 因为API也就几个，可以查看源代码： https://github.com/rovo89/XposedBridge/tree/master/src/de/robv/android/xposed

馋图

拿来主义

1、需要android 4.4+ Root手机

2、安装 Xposed框架

3、已开启QQ WebView的Apk： webviewdebughook.Apk

原创文章转载请注明：

转载自AlloyTeam：http://www.alloyteam.com/2015/04/%e4%bd%bf%e7%94%a8xposed%e5%bc%ba%e5%88%b6androidwebview%e5%bc%80%e5%90%afdebug%e6%a8%a1%e5%bc%8f/