Android RemotableViewMethod注解不生效解决

最近在开发的时候遇到了一点小问题感觉这个也是坑分享给大家
在开发widget的时候需要实现透传到自定义view里面需要用到RemotableViewMethod
但是我加了这个注解后无法调用到这个注解。
我就不废话了先复制源码

RemotableViewMethod类

package android.view;


/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * @hide
 * This annotation indicates that a method on a subclass of View
 * is alllowed to be used with the {@link android.widget.RemoteViews} mechanism.
 */
@TargetApi(30)
@Target({ ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
public @interface RemotableViewMethod {
    /**
     * @return Method name which can be called on a background thread. It should have the
     * same arguments as the original method and should return a {@link Runnable} (or null)
     * which will be called on the UI thread.
     */
    String asyncImpl() default "";
}

TargetApi接口

package android.annotation;
/** Indicates that Lint should treat this type as targeting a given API level, no matter what the
 project target is. */
@Target({TYPE, METHOD, CONSTRUCTOR, FIELD})
@Retention(RetentionPolicy.CLASS)
public @interface TargetApi {
    /**
     * This sets the target api level for the type..
     */
    int value();
}

但是在这里需要注意的是包名一定要与源码的包名一致 一定要在这个包名路径下才可以生效