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Frida hook带handler的method

豆丁趣 2022-06-09 阅读 38

有些Class里面有Handler对象,就必须在 主线程里执行,否则报错

E/AndroidRuntime( 2434): java.lang.ExceptionInInitializerError
E/AndroidRuntime( 2434): at dalvik.system.NativeStart.run(Native Method)
E/AndroidRuntime( 2434): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
E/AndroidRuntime( 2434): at android.os.Handler.(Handler.java:200)

Frida提供了这样的设施, 那就是 scheduleOnMainThread

send(Java.available); 

Java.perform(function () {
send(Java.androidVersion);
send(Java.isMainThread());

Java.scheduleOnMainThread(function () {
send(Java.isMainThread());

var Mgr = Java.use("me.app.im.Mgr");
var MgrInstance = Mgr.a();
var Region = MgrInstance.v();
send(Region);
});
});



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