找不到getSharedPreferences

[svengong]

如图，看上去Application里找不到getSharedPreferences这个方法。目前Application里调试看到只有getPackageManager和getPackageInfo。在哪里加上请指教

[svengong]

基本知道原因了，查找method时是Context
GetMethodID class=android/content/Context, methodName=getSharedPreferences,
而后面调用的时候是Application
CallObjectMethodV dvmObject=DvmObject{value=android/app/ActivityThread->currentApplication()Landroid/app/Application;},objType=android/app/Application, dvmClass=android/app/Application, jmethodID=unicorn@0xa0a12d1f

两者是继承关系，context是接口，application是实现，这就很尴尬，后面我想想怎么改比较合理吧

[svengong]

希望作者关注下这类问题，好多接口都会这样

[zhkl0228]

反馈问题请发上测试代码

[svengong]

      Pointer _CallObjectMethodV = svcMemory.registerSvc(new ArmSvc() {
            @Override
            public long handle(Emulator emulator) {
                UnicornPointer object = UnicornPointer.register(emulator, ArmConst.UC_ARM_REG_R1);
                UnicornPointer jmethodID = UnicornPointer.register(emulator, ArmConst.UC_ARM_REG_R2);
                UnicornPointer va_list = UnicornPointer.register(emulator, ArmConst.UC_ARM_REG_R3);
                if (log.isDebugEnabled()) {
                    log.debug("CallObjectMethodV object=" + object + ", jmethodID=" + jmethodID + ", va_list=" + va_list + ", lr=" + UnicornPointer.register(emulator, ArmConst.UC_ARM_REG_LR));
                }
                DvmObject dvmObject = getObject(object.peer);
                DvmClass dvmClass = dvmObject == null ? null : dvmObject.objectType;

                DvmMethod dvmMethod = dvmClass == null ? null : dvmClass.methodMap.get(jmethodID.peer);
                if (dvmMethod == null) {
                    if (dvmClass.toString().equals("android/app/Application")) {
                        dvmClass = findClass("android/content/Context");
                    }
                    dvmMethod = dvmClass == null ? null : dvmClass.methodMap.get(jmethodID.peer);
                    if (dvmMethod == null) {
                        throw new UnicornException("dvmObject=" + dvmObject + ",objType=" + dvmObject.objectType + ", dvmClass=" + dvmClass + ", jmethodID=" + jmethodID);
                    }
                    return addObject(dvmMethod.callObjectMethodV(dvmObject, new VaList(DalvikVM.this, va_list)), false);

                } else {
                    return addObject(dvmMethod.callObjectMethodV(dvmObject, new VaList(DalvikVM.this, va_list)), false);
                }
            }
        });

做了一个简单的兼容，没有抽象

[svengong]

测试代码要整理一下，因为上面的改法可以跑通了