結合DrawerLayout+CoordinatorLayout+MagicIndicator+ViewPager實現仿京東，淘寶商城頁面

我要實現的效果

效果包含的功能

• 滑動標題漸變
• 滑動頁面，MagicIndicator吸頂功能
• 自定義MagicIndicator漸變色的指示器
• 抽屜菜單

功能用到的控件以及代碼解析

• 抽屜菜單DrawerLayout

1. 外層是DrawerLayout，第一個子view是主內容區，這裏我用include來加載側滑菜單佈局
2. 在菜單佈局中，必須設置android:layout_gravity="right"，或者left，來對應Activity中的側滑方向，比如我在代碼 中設置left， drawerlayout.openDrawer(GravityCompat.START);如果設置right， drawerlayout.openDrawer(GravityCompat.END);

---

• CoordinatorLayout 

1. CoordinatorLayout是協調佈局，通過該佈局可以實現摺疊懸浮效果，這裏也可以結合其他控件使用，這裏不多做解釋
2. 參考https://www.jianshu.com/p/eec5a397ce79，很詳細

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawerlayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--主內容區-->
    <android.support.design.widget.CoordinatorLayout
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/white"
        android:orientation="vertical"
        tools:context=".activity.TextMyActivity">

        <!--AppBarLayout必須爲CoordinatorLayout的直接子View-->
        <android.support.design.widget.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:elevation="0dp"
            android:background="@android:color/white">

            <android.support.design.widget.CollapsingToolbarLayout
                android:id="@+id/collapsing_toolbar_layout"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"

                app:layout_scrollFlags="scroll|exitUntilCollapsed">

                <RelativeLayout
                    android:id="@+id/rl_top"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="@drawable/test_server_bg">

                    <LinearLayout
                        android:id="@+id/ll_earch"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_marginTop="@dimen/dp_30"
                        android:gravity="center_vertical"
                        android:orientation="horizontal">

                        <ImageView
                            android:id="@+id/iv_back"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:padding="@dimen/dp_13"
                            android:src="@drawable/back_white" />

                        <LinearLayout
                            android:layout_width="match_parent"
                            android:layout_height="@dimen/dp_32"
                            android:layout_weight="1"
                            android:background="@drawable/trans_search"
                            android:orientation="horizontal"></LinearLayout>

                        <ImageView
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:padding="@dimen/dp_13"
                            android:src="@drawable/share_white" />
                    </LinearLayout>

                    <RelativeLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_below="@id/ll_earch"
                        android:layout_marginLeft="@dimen/dp_13"
                        android:layout_marginTop="@dimen/dp_10"
                        android:layout_marginRight="@dimen/dp_13"
                        android:layout_marginBottom="@dimen/dp_8">

                        <de.hdodenhof.circleimageview.CircleImageView
                            android:id="@+id/profile_image"
                            android:layout_width="52dp"
                            android:layout_height="52dp" />

                        <TextView
                            android:id="@+id/profile_title"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_marginLeft="10dp"
                            android:layout_marginTop="@dimen/dp_10"
                            android:layout_toRightOf="@id/profile_image"
                            android:textColor="@color/white"
                            android:textSize="@dimen/sp_14"
                            android:textStyle="bold" />

                        <TextView
                            android:id="@+id/profile_content"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_below="@id/profile_title"
                            android:layout_marginLeft="10dp"
                            android:layout_marginTop="@dimen/dp_5"
                            android:layout_toRightOf="@id/profile_image"
                            android:textColor="@color/white"
                            android:textSize="@dimen/sp_10" />

                        <LinearLayout
                            android:id="@+id/ll_collect"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_alignParentRight="true"
                            android:layout_centerVertical="true"
                            android:background="@drawable/collect_yellow"
                            android:gravity="center_vertical"
                            android:orientation="horizontal"
                            android:paddingLeft="@dimen/dp_12"
                            android:paddingTop="@dimen/dp_6"
                            android:paddingRight="@dimen/dp_12"
                            android:paddingBottom="@dimen/dp_6">

                            <ImageView
                                android:id="@+id/iv_collect"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:src="@drawable/icon_collect" />

                            <TextView
                                android:id="@+id/tv_collect"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginLeft="6dp"
                                android:text="收藏"
                                android:textColor="@color/black_29"
                                android:textSize="@dimen/sp_10" />
                        </LinearLayout>

                    </RelativeLayout>
                </RelativeLayout>

                <!--漸變標題-->
                <android.support.v7.widget.Toolbar
                    android:id="@+id/toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="@color/white"
                    android:paddingTop="25dp"
                    app:contentInsetStart="0dp"
                    app:layout_collapseMode="pin"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                    app:title="@null">
                    <LinearLayout
                        android:orientation="horizontal"
                        android:background="@color/white"
                        android:id="@+id/ib_back_layout"
                        android:layout_width="match_parent"
                        android:layout_height="@dimen/dp_50">

                        <ImageView
                            android:id="@+id/iv_back2"
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:src="@mipmap/backclose"
                            android:layout_gravity="left"
                            android:paddingRight="@dimen/dp_13"
                            android:paddingLeft="@dimen/dp_13" />

                        <LinearLayout
                            android:layout_gravity="center_vertical"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:gravity="center_vertical"
                            android:orientation="horizontal">

                            <LinearLayout
                                android:layout_width="match_parent"
                                android:layout_height="@dimen/dp_32"
                                android:layout_weight="1"
                                android:background="@drawable/grey_search"
                                android:orientation="horizontal">

                            </LinearLayout>

                            <ImageView
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:padding="@dimen/dp_13"
                                android:src="@drawable/share_black" />
                        </LinearLayout>

                        <ImageView
                            android:id="@+id/iv_share2"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_alignParentRight="true"
                            android:paddingRight="@dimen/dp_13"
                            android:paddingLeft="@dimen/dp_13"
                            android:src="@drawable/shape_black"
                            android:layout_centerVertical="true" />

                    </LinearLayout>

                </android.support.v7.widget.Toolbar>


            </android.support.design.widget.CollapsingToolbarLayout>

            <!--Tab標籤，要注意看佈局的位置，在CollapsingToolbarLayout外邊-->
            <LinearLayout
                android:id="@+id/ll_title"
                android:layout_width="match_parent"
                android:layout_height="@dimen/dp_48"
                android:layout_below="@id/rl_top"
                android:background="@color/white"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                android:paddingLeft="@dimen/dp_13">

                <net.lucode.hackware.magicindicator.MagicIndicator
                    android:id="@+id/magic_indicator"
                    android:layout_weight="1"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/dp_25" />

                <TextView
                    android:id="@+id/tv_shaixuan"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawableTop="@drawable/icon_shaixuan"
                    android:drawablePadding="@dimen/dp_2"
                    android:paddingLeft="@dimen/dp_13"
                    android:paddingRight="@dimen/dp_13"
                    android:text="篩選"
                    android:textColor="@color/black_29"
                    android:textSize="@dimen/sp_12" />
            </LinearLayout>

        </android.support.design.widget.AppBarLayout>

        <!--懸浮佈局-->
        <android.support.v4.widget.NestedScrollView
            android:id="@+id/NestedScrollView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fillViewport="true"
            android:overScrollMode="always"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <android.support.v4.view.ViewPager
                android:id="@+id/viewPager_fragment"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </android.support.v4.widget.NestedScrollView>
    </android.support.design.widget.CoordinatorLayout>

    <!--菜單區-->
    <include layout="@layout/drawer_layout" />

</android.support.v4.widget.DrawerLayout>

• 自定義MagicIndicator漸變導航條

• 繼承IPagerIndicator

    @Override
    protected void onDraw(Canvas canvas) {
        LinearGradient lg = new LinearGradient(getLineRect().left, getLineRect().top, getLineRect().right,
                getLineRect().bottom, new int[]{0xFFFFC75C, 0xFFFF5E30}, null, LinearGradient.TileMode.CLAMP);
        getPaint().setShader(lg);
        canvas.drawRoundRect(getLineRect(), getRoundRadius(), getRoundRadius(), getPaint());
    }

 

源碼鏈接https://download.csdn.net/download/u010184528/12546332