Main布局

MainActivity 布局写在contentxml里

<RelativeLayout    android:layout_width="match_parent"    android:layout_height="match_parent"    >    <LinearLayout        android:id="@+id/ll"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:orientation="horizontal">        <Button            android:id="@+id/sy"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:gravity="center"            android:text="首页" />        <Button            android:id="@+id/qy"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:gravity="center"            android:text="详情页" />    </LinearLayout>    <FrameLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_above="@+id/ll"        android:id="@+id/fl"></FrameLayout></RelativeLayout>Main2布局
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/activity_main2"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.shengbanla.Main2Activity">    <com.youth.banner.Banner        android:id="@+id/banner"        android:layout_width="200dp"        android:layout_height="100dp"></com.youth.banner.Banner></RelativeLayout>
Main3布局
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/activity_main3"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.shengbanla.Main3Activity">    <android.support.design.widget.TabLayout        android:id="@+id/tablayout"        android:layout_width="match_parent"        android:layout_height="40dp"        app:tabGravity="center"        app:tabIndicatorColor="#ff0000"        app:tabMode="scrollable"        app:tabSelectedTextColor="#ff0000"        app:tabTextColor="#00ff00"></android.support.design.widget.TabLayout>    <android.support.v4.view.ViewPager        android:id="@+id/vp"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_below="@+id/tablayout"></android.support.v4.view.ViewPager></RelativeLayout>