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：

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

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

参考文档：

Xposed工作原理可以

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