APP安卓开发

                           实验6：APP首页

一、实验目标

做一个APP首页，包括顶部图片、顶部菜单栏、中部消息模块、底部Tab按钮。学习 ScrollView, RelativeLayout，以及插件之间的穿插使用。

• 关键步骤和代码:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <!--创建父布局-->
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="#f7f6fb">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:gravity="center"
                android:text="首页"
                android:textColor="#333"
                android:textSize="22dp"
                android:textStyle="bold" />

            <ImageView
                android:layout_width="match_parent"
                android:layout_height="200dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/test_img" />
            <!--菜单栏模块-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:orientation="horizontal"
                android:weightSum="4">
                <!--验房-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image1"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/test_icon1" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image1"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="验房"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--日常巡检-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image2"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/test_icon2" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image2"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="日常巡检"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--钥匙管理-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image3"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/yaoshi" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image3"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="钥匙管理"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--统计分析-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image4"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/tongji" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image4"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="统计分析"
                        android:textColor="@color/black"/>
                </RelativeLayout>
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="20dp"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_weight="1"
                    android:text="待办（10）"
                    android:textColor="#333"
                    android:textSize="16dp"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:text="更多"
                    android:textColor="#666" />
            </LinearLayout>

            <!--消息-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp">
                <LinearLayout
                    android:layout_width="300dp"
                    android:layout_height="90dp"
                    android:layout_marginLeft="30dp"
                    android:orientation="vertical"
                    android:layout_marginBottom="30dp"
                    android:background="#0099ff">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="50dp"
                        android:layout_marginBottom="-4dp"
                        android:text="*鼎世华府1号楼8单元801业主提报钥匙借用申请"
                        android:textColor="@color/black"/>


                </LinearLayout>
                <LinearLayout
                    android:layout_width="300dp"
                    android:layout_height="90dp"
                    android:orientation="vertical"
                    android:layout_marginLeft="30dp"
                    android:layout_marginBottom="20dp"
                    android:background="#CCCCFF">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="50dp"
                        android:layout_marginBottom="-4dp"
                        android:text="*海尔世纪公馆1期12号楼3单元101房间问题待指派"
                        android:textColor="@color/black"/>
                </LinearLayout>

            </LinearLayout>



        </LinearLayout>
    </ScrollView>

    <!--底部按钮-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:layout_gravity="bottom"
        android:layout_weight="0"
        android:weightSum="4">

        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image1"
                android:src="@mipmap/test_icon3" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image1"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="首页" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image2"
                android:src="@mipmap/daiban" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image2"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="验房" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image3"
                android:src="@mipmap/baobiao" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image3"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="统计" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image4"
                android:src="@mipmap/guanli" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image4"
                android:layout_centerHorizontal="true"
                android:gravity="center"
                android:text="设置" />
        </RelativeLayout>

    </LinearLayout>


</LinearLayout>

步骤分析：

首先我们创建他们的父布局

新建ScrollView ，创建ScrollView 内部父布局，创建顶部首页显示栏，创建顶部图片

菜单栏模块，首先我们创建一个横向的LinearLayoutLinearLayout来作为菜单栏的父布局，再次创建一个LinearLayout作为单个按钮的父布局，创建上边的图片按钮，并设置其属性，设置按钮底部文字并赋予其属性

消息模块，首先我们创建一个横向的LinearLayout来作为菜单栏的父布局，创建待办Textview，创建更多Textview

底部Tab模块，首先我们创建一个横向的LinearLayoutLinearLayout来作为菜单栏的父布局，再次创建一个LinearLayout作为单个按钮的父布局

按钮

代码解析：大linearlayout里面套几个小linealayout就行，然后小linearout用margintop控制各个组件之间的区域就行，然后加入图像和文本组件，填写图标和项目名称

• 程序运行结果

• 遇到的问题和体会

问题：其实最大的问题是不了解变量大小，dp，rpx究竟是多大，通过此次实验，学习了如何使用RelativeLayout创建了列表布局，了解了了ScrollView的用法，对Android开发的有了进一步了解

体会：感觉和微信小程序的前端设计原理差不多，都是靠一个个组件完成的，唯一有区别的可能是安卓开发的界面设计更容易明白，他的小函数都挺容易理解的。

                           实验6：APP首页

姓名：艾圣明 学号：20170001001

一、实验目标

做一个APP首页，包括顶部图片、顶部菜单栏、中部消息模块、底部Tab按钮。学习 ScrollView, RelativeLayout，以及插件之间的穿插使用。

• 关键步骤和代码:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <!--创建父布局-->
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="#f7f6fb">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:gravity="center"
                android:text="首页"
                android:textColor="#333"
                android:textSize="22dp"
                android:textStyle="bold" />

            <ImageView
                android:layout_width="match_parent"
                android:layout_height="200dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/test_img" />
            <!--菜单栏模块-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:orientation="horizontal"
                android:weightSum="4">
                <!--验房-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image1"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/test_icon1" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image1"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="验房"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--日常巡检-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image2"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/test_icon2" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image2"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="日常巡检"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--钥匙管理-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image3"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/yaoshi" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image3"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="钥匙管理"
                        android:textColor="@color/black"/>
                </RelativeLayout>
                <!--统计分析-->
                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="100dp"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <ImageView
                        android:id="@id/image4"
                        android:layout_width="50dp"
                        android:layout_height="50dp"
                        android:layout_centerHorizontal="true"
                        android:layout_marginTop="10dp"
                        android:background="@mipmap/tongji" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_below="@ id/image4"
                        android:layout_marginTop="10dp"
                        android:gravity="center"
                        android:text="统计分析"
                        android:textColor="@color/black"/>
                </RelativeLayout>
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="20dp"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_weight="1"
                    android:text="待办（10）"
                    android:textColor="#333"
                    android:textSize="16dp"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:text="更多"
                    android:textColor="#666" />
            </LinearLayout>

            <!--消息-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp">
                <LinearLayout
                    android:layout_width="300dp"
                    android:layout_height="90dp"
                    android:layout_marginLeft="30dp"
                    android:orientation="vertical"
                    android:layout_marginBottom="30dp"
                    android:background="#0099ff">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="50dp"
                        android:layout_marginBottom="-4dp"
                        android:text="*鼎世华府1号楼8单元801业主提报钥匙借用申请"
                        android:textColor="@color/black"/>


                </LinearLayout>
                <LinearLayout
                    android:layout_width="300dp"
                    android:layout_height="90dp"
                    android:orientation="vertical"
                    android:layout_marginLeft="30dp"
                    android:layout_marginBottom="20dp"
                    android:background="#CCCCFF">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="50dp"
                        android:layout_marginBottom="-4dp"
                        android:text="*海尔世纪公馆1期12号楼3单元101房间问题待指派"
                        android:textColor="@color/black"/>
                </LinearLayout>

            </LinearLayout>



        </LinearLayout>
    </ScrollView>

    <!--底部按钮-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:layout_gravity="bottom"
        android:layout_weight="0"
        android:weightSum="4">

        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image1"
                android:src="@mipmap/test_icon3" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image1"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="首页" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image2"
                android:src="@mipmap/daiban" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image2"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="验房" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image3"
                android:src="@mipmap/baobiao" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image3"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:gravity="center"
                android:text="统计" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginTop="15dp"
                android:layout_centerHorizontal="true"
                android:id="@ id/image4"
                android:src="@mipmap/guanli" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@ id/image4"
                android:layout_centerHorizontal="true"
                android:gravity="center"
                android:text="设置" />
        </RelativeLayout>

    </LinearLayout>


</LinearLayout>

步骤分析：

首先我们创建他们的父布局

新建ScrollView ，创建ScrollView 内部父布局，创建顶部首页显示栏，创建顶部图片

菜单栏模块，首先我们创建一个横向的LinearLayoutLinearLayout来作为菜单栏的父布局，再次创建一个LinearLayout作为单个按钮的父布局，创建上边的图片按钮，并设置其属性，设置按钮底部文字并赋予其属性

消息模块，首先我们创建一个横向的LinearLayout来作为菜单栏的父布局，创建待办Textview，创建更多Textview

底部Tab模块，首先我们创建一个横向的LinearLayoutLinearLayout来作为菜单栏的父布局，再次创建一个LinearLayout作为单个按钮的父布局

按钮

代码解析：大linearlayout里面套几个小linealayout就行，然后小linearout用margintop控制各个组件之间的区域就行，然后加入图像和文本组件，填写图标和项目名称

• 程序运行结果

• 遇到的问题和体会

问题：其实最大的问题是不了解变量大小，dp，rpx究竟是多大，通过此次实验，学习了如何使用RelativeLayout创建了列表布局，了解了了ScrollView的用法，对Android开发的有了进一步了解

体会：感觉和微信小程序的前端设计原理差不多，都是靠一个个组件完成的，唯一有区别的可能是安卓开发的界面设计更容易明白，他的小函数都挺容易理解的。

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