扩大点击按钮的点击范围的方法

如果只设置ImageButton，往往会点击范围比较小，外面套用一层FrameLayout的话可以实现扩大点击按钮的点击范围的效果，但是此时Imagebutton会截取Framelayout的点击时间（ImageButton默认有点击事件）。

                <FrameLayout
                    android:id="@+id/info_area"
                    android:layout_width="55dp"
                    android:layout_height="match_parent"
                    android:layout_gravity="center|left">
                    <ImageButton
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center|left"
                        android:layout_marginLeft="13dp"
                        android:background="@drawable/btn_info_selector"
                        android:focusable="true" />
                </FrameLayout>

如果把ImageButton修改为ImageView就可以避开点击事件被截取问题。

                <FrameLayout
                    android:id="@+id/info_area"
                    android:layout_width="55dp"
                    android:layout_height="match_parent"
                    android:layout_gravity="center|left">
                    <ImageView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center|left"
                        android:layout_marginLeft="13dp"
                        android:background="@drawable/btn_info_selector"
                        android:focusable="true" />
                </FrameLayout>