Xposed插件获取控件id和所在的activity名

有时候反编译一个软件，会发现软件被混淆了，想要找到指定的控件还是挺麻烦的。这时候我们就可以直接通过Xposed插件找到了，废话不多说，看下面的方法。

首先要知道如何编写一个Xposed插件，如果不清楚可以看这里

首先先编写一个类实现View.OnClickListener接口，这个用于替换原始的监听类

import android.content.Context;
import android.util.Log;
import android.view.View;

import de.robv.android.xposed.XposedBridge;

public class HookOnClickListener implements View.OnClickListener {
    private View.OnClickListener original;

    public HookOnClickListener(View.OnClickListener original) {
        this.original = original;
    }

    @Override
    public void onClick(View v) {
        Context context = v.getContext();
        int id = v.getId();
        XposedBridge.log("context:" + context.getClass().getName());
        XposedBridge.log("View Id:" + id);
        original.onClick(v);
    }
}

通过拦截View的setOnClickListener,然后用我们编写HookOnClickListener类替换原始的类。

import android.view.View;

import de.robv.android.xposed.IXposedHookLoadPackage;
import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class HookLogic implements IXposedHookLoadPackage {

    @Override
    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam) throws Throwable {

//        String testClassName = "com.tencent.mobileqq";
//
//        if (!testClassName.startsWith(lpparam.packageName)) {
//            return;
//        }

        XposedBridge.log("HookLogic >> 进来了");

        XposedHelpers.findAndHookMethod(View.class, "setOnClickListener", View.OnClickListener.class, new XC_MethodHook() {
            @Override
            protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                super.beforeHookedMethod(param);
                HookOnClickListener hookOnClickListener =
                        new HookOnClickListener((View.OnClickListener) param.args[0]);
                param.args[0] = hookOnClickListener;
            }
        });
    }

}

上面的类我们也可以这样编写：

import android.app.Activity;
import android.os.Bundle;
import android.view.View;

import androidx.appcompat.app.AppCompatActivity;

import de.robv.android.xposed.IXposedHookLoadPackage;
import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class HookLogic implements IXposedHookLoadPackage {

    @Override
    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam) throws Throwable {


        /**
         * 获取activity
         */
        XposedHelpers.findAndHookMethod(Activity.class, "onCreate", Bundle.class, new XC_MethodHook() {
            @Override
            protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                XposedBridge.log("=\t=\t=\t=\t=\nthis activity:" + param.thisObject);
                XposedBridge.log("this activity class:" + param.thisObject.getClass().getName());
            }
        });

        /**
         * 获取布局id
         */

        if (null != XposedHelpers.findClassIfExists("androidx.appcompat.app.AppCompatActivity", lpparam.classLoader)) {
            XposedHelpers.findAndHookMethod(AppCompatActivity.class, "setContentView", int.class, new XC_MethodHook() {
                @Override
                protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                    XposedBridge.log("this activity layout id:" + param.args[0]);
                }
            });
        } else {
            XposedHelpers.findAndHookMethod(Activity.class, "setContentView", int.class, new XC_MethodHook() {
                @Override
                protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                    XposedBridge.log("this activity layout id:" + param.args[0]);
                }
            });
        }

        /**
         * 获取view的id
         */
        XposedHelpers.findAndHookMethod(View.class, "setOnClickListener", View.OnClickListener.class, new XC_MethodHook() {
            @Override
            protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                super.beforeHookedMethod(param);
                HookOnClickListener hookOnClickListener =
                        new HookOnClickListener((View.OnClickListener) param.args[0]);
                param.args[0] = hookOnClickListener;
            }
        });

    }

}

这样就可以了，让我们看下效果：