我用fragment请求网络会报错 ，请问怎么解决

[wpsmgkn]

AndroidRuntime: FATAL EXCEPTION: main
Process: com.niule.hdd, PID: 2129
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.niule.hdd/com.niule.hdd.MainActivity}: java.lang.ClassCastException: com.niule.hdd.mvp.ui.fragment.HomeOneFragment cannot be cast to com.jess.arms.base.BaseActivity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2219)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5045)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: com.niule.hdd.mvp.ui.fragment.HomeOneFragment cannot be cast to com.jess.arms.base.BaseActivity
at com.niule.hdd.mvp.presenter.HomeOnePresenter.getBannerList(HomeOnePresenter.java:65)
at com.niule.hdd.mvp.ui.fragment.HomeOneFragment.initData(HomeOneFragment.java:97)
at com.jess.arms.base.BaseFragment.onActivityCreated(BaseFragment.java:46)
at com.niule.hdd.mvp.ui.fragment.HomeOneFragment.onActivityCreated(HomeOneFragment.java:102)
at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:2096)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1295)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:801)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1682)
at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:388)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:607)
at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:181)
at com.trello.rxlifecycle.components.support.RxAppCompatActivity.onStart(RxAppCompatActivity.java:50)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1188)
at android.app.Activity.performStart(Activity.java:5241)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2179)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5045) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
at dalvik.system.NativeStart.main(Native Method) 

源码

   public void getBannerList() {

    //请求外部存储权限用于适配android6.0的权限管理机制
    PermissionUtil.externalStorage(new PermissionUtil.RequestPermission() {
        @Override
        public void onRequestPermissionSuccess() {
            //request permission success, do something.
        }
    }, mRxPermissions, mRootView, mErrorHandler);



    mModel.getBannerList()
            .subscribeOn(Schedulers.io())
            .retryWhen(new RetryWithDelay(3, 2))//遇到错误时重试,第一个参数为重试几次,第二个参数为重试的间隔
            .doOnSubscribe(new Action0() {
                @Override
                public void call() {
                        mRootView.showLoading();
                }
            }).subscribeOn(AndroidSchedulers.mainThread())
            .observeOn(AndroidSchedulers.mainThread())
            .doAfterTerminate(new Action0() {//**这里是引发错误的地方**
                @Override
                public void call() {
                        mRootView.hideLoading();//隐藏上拉刷新的进度条
                }
            })
            .compose(((BaseActivity) mRootView).<BaseObject>bindToLifecycle())//使用RXlifecycle,使subscription和activity一起销毁
            .subscribe(new ErrorHandleSubscriber<BaseObject>(mErrorHandler) {
                @Override
                public void onNext(BaseObject baseObject) {
                    if(baseObject.isSuccess()){
                        Log.d("HomeOnePresenter", baseObject.toString());
                    }else {
                        mRootView.showMessage(baseObject.getMessage().toString());
                    }
                }
            });
}

[JessYanCoding]

.compose(((BaseActivity) mRootView).bindToLifecycle())

你的view接口是用fragment实现的,这里你强转成activity所以强转失败,复制下面的替换之,这段代码的意思是将生命周期绑定到和fragment的声明周期一样,如果fragment,被关闭,这个网络请求也会结束,规避了内存泄漏的风险
.compose(((BaseFragment) mRootView).bindToLifecycle())

附送个工具类

---

public static LifecycleTransformer bindToLifecycle(BaseView view) {
if (view instanceof BaseActivity) {
return ((BaseActivity) view).bindToLifecycle();
} else if (view instanceof BaseFragment) {
return ((BaseFragment) view).bindToLifecycle();
} else {
throw new IllegalArgumentException("view isn't activity or fragment");
}

}

---

用法
.compose(bindToLifecycle(mRootView));