反射调用类中方法

//申请权限
   @AfterPermissionGranted(REQUEST_CODE_QRCODE_PERMISSIONS)
    private void requestCodeQRCodePermissions() {
        String[] perms = {Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};
}

/**
*1，便利类，判断方法是否有AfterPermissionGranted标签
*2，有标签，且requestCode与value想的，则修改方法访问权限
*3，调用对象方法 method.invoke(object);
*/

    private static void runAnnotatedMethods(Object object, int requestCode) {
        Class clazz = object.getClass();
        for (Method method : clazz.getDeclaredMethods()) {
            if (method.isAnnotationPresent(AfterPermissionGranted.class)) {
                // Check for annotated methods with matching request code.
                AfterPermissionGranted ann = method.getAnnotation(AfterPermissionGranted.class);
                if (ann.value() == requestCode) {
                    // Method must be void so that we can invoke it
                    if (method.getParameterTypes().length > 0) {
                        throw new RuntimeException(
                                "Cannot execute non-void method " + method.getName());
                    }

                    try {
                        // Make method accessible if private（修改为可访问）
                        if (!method.isAccessible()) {
                            method.setAccessible(true);
                        }
                        method.invoke(object);
                    } catch (IllegalAccessException e) {
                        Log.e(TAG, "runDefaultMethod:IllegalAccessException", e);
                    } catch (InvocationTargetException e) {
                        Log.e(TAG, "runDefaultMethod:InvocationTargetException", e);
                    }
                }
            }
        }
    }