Fragment加RadioGroup布局

        <FrameLayout

            android:id="@+id/fl_main"

            android:layout_width="match_parent"

            android:layout_height="0dp"

            android:layout_weight="9" />

        <RadioGroup

            android:id="@+id/group"

            android:layout_width="match_parent"

            android:layout_height="0dp"

            android:layout_weight="1"

            android:gravity="center"

            android:orientation="horizontal">

            <RadioButton

                android:id="@+id/but1"

                android:layout_width="0dp"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:button="@null"

                android:gravity="center"

                android:text="首页" />

            <RadioButton

                android:id="@+id/but2"

                android:layout_width="0dp"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:button="@null"

                android:gravity="center"

                android:text="想法" />

            <RadioButton

                android:id="@+id/but3"

                android:layout_width="0dp"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:button="@null"

                android:gravity="center"

                android:text="市场" />

            <RadioButton

                android:id="@+id/but4"

                android:layout_width="0dp"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:button="@null"

                android:gravity="center"

                android:text="通知" />

            <RadioButton

                android:id="@+id/but5"

                android:layout_width="0dp"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:button="@null"

                android:gravity="center"

                android:text="更多" />

        </RadioGroup>