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实验四报告
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zengsn authored Jan 1, 2021
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# 实验四
## 一、实验目标
  1.根据选题要求设计界面布局及控件使用;
  2.布局xml及界面控制操作代码提交并截图;
  3.将应用运行结果截图。

## 二、实验内容
  1.使用其中一种布局方式,设计所选题目的界面;
  2.通过控件ID获取界面对象,执行相关操作:
  // XML
  android:id="@+id/my_button"
  // Java
  findViewById(R.id.my_button);

  3.实现界面控件的事件处理;
  4.操作之后,切换到你的第二个界面。

## 三、实验步骤
  1.根据项目需求选择使用相对布局方式。
  2.在activity_select_room.xml文件中配置相对布局代码,根据规格发表自己的动态。
  代码示例:
~~~
<?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:paddingLeft="16dp"
android:paddingRight="16dp"
android:orientation="vertical"
>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/select_day" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/select_time" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/classroomNo" />
<EditText
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="top"
android:hint="@string/message" />
<Button
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="@string/send" />
</LinearLayout>
~~~
## 四、实验结果
![lab4](https://raw.githubusercontent.com/Dynasty011/android-labs-2020/master/students/net1814080903322/lab4.PNG)

## 五、实验心得
&emsp; 在本次实验界面设计编程,在实验过程中遇到了布局内大小超出边界、重叠等问题,在经过修改对应的配置信息解决了问题。

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