Android (native java) - Sliding Drawer - Content (Imageview and Checkbox) click event not firing

In one of the project,we have a sliding panel from the bottom. In which user can choose the checkbox and click the image inside the panel. so i have added a sliding drawer component inside the relative layout. Top view will contain, listview and the bottom it will be a slidingdrawer.

We have the handle and content part for the sliding component. Inside the content i have added a checkbox and imageview. I want to listen for those events when user clicks any one of those. I can able to listen for teh sliding drawer events but not the other two click events.

DO i miss anything for listening of events inside content part in the sliding drawer. I tried by adding clickable property to true in layout xml. But still the same result.

I searched in google, but not able to find the solution.

Please let me know, if i am missing anything.

<SlidingDrawer android:id="@+id/slidingDrawer1" android:layout_width="match_parent" 

                android:layout_height="wrap_content" android:handle="@+id/handle" android:content="@+id/content"

                android:animateOnClick="true" android:padding="15dp" android:topOffset="250dp" android:allowSingleTap="true"

                >

                <LinearLayout android:layout_width="match_parent"

                    android:layout_height="wrap_content" >



                    <LinearLayout android:layout_width="match_parent" android:layout_height="50dp"

                        android:id="@+id/handle" android:background="@drawable/popbg" android:paddingLeft="20dp"

                        android:paddingTop="20dp" android:paddingRight="20dp">

                        <TextView android:layout_width="wrap_content" android:layout_height="wrap_content"

                                android:text="text1" android:textColor="#000000"

                                android:layout_weight="1"/>

                        <ImageView 

                            android:id="@+id/elrattSlidingIcon"

                            android:layout_width="wrap_content" android:layout_height="wrap_content"

                            android:src="@drawable/non_expand" android:layout_gravity="right"/>    

                    </LinearLayout>



                    <LinearLayout android:layout_width="match_parent"

                        android:layout_height="80dp"

                        android:gravity="center_horizontal" android:orientation="vertical"

                        android:id="@+id/content" android:paddingLeft="15dp" android:paddingRight="14dp"

                        android:clickable="true">

                        <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent"

                            android:gravity="top" android:padding="0dp"

                            android:clickable="true">

                            <LinearLayout android:layout_width="match_parent"

                                android:layout_height="match_parent" android:gravity="center_horizontal"

                                android:paddingTop="15dp" android:orientation="vertical"

                                android:background="@drawable/bg_elratt">

                                <ImageView android:id="@+id/elrattListBtmBtn"

                                    android:layout_width="match_parent" android:layout_height="wrap_content"

                                    android:src="@drawable/skickaintr_ov" android:clickable="true"/>

                                <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"

                                    android:orientation="horizontal" android:paddingLeft="50dp" android:paddingRight="50dp"

                                    android:paddingTop="10dp">

                                    <CheckBox android:id="@+id/usrOption" android:layout_width="0dp" android:layout_height="wrap_content"

                                        android:layout_weight="0.2" android:button="@drawable/checkbox_selector" android:tag="1"

                                        android:clickable="true"/>

                                    <TextView android:layout_width="0dp" android:layout_height="match_parent"

                                        android:text="test2" android:singleLine="false"

                                        android:layout_weight="0.8"/>

                                </LinearLayout>                                 

                            </LinearLayout>

                        </LinearLayout>

                    </LinearLayout>



                </LinearLayout>



            </SlidingDrawer>

Thanks in Advance, Regards Srini