关于linearlayout

来源：互联网发布：kali linux换源编辑：程序博客网时间：2024/06/05 03:33

LinearLayout----Layout that arranges its children in a single column or a single row.

Linear--线性的，直线的意思

Layout--布局，规划

那么LinearLayout应该就是以线性的方式对它的组件进行布局的吧，只能以横向或纵向的方向规划组件，^_^

Ex1:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView android:id="@+id/textview"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" /></LinearLayout>

Ex2:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"       android:orientation="horizontal"      android:layout_width="fill_parent"      android:layout_height="fill_parent"  >     <GridView android:padding="10dp"    android:verticalSpacing="30dp"   android:numColumns="auto_fit"   android:layout_height="match_parent"    android:horizontalSpacing="10dp"   android:layout_width="match_parent"    android:id="@+id/GridView01"    android:gravity="center"   android:stretchMode="columnWidth"   android:columnWidth="80dp"> </GridView>  </LinearLayout>

Ex31: 纵向显示

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"         android:textSize="50dp"        android:text="@string/hello"/>        <TextView android:id="@+id/text"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:text="Hello, I am a TextView" />        <Button android:id="@+id/button"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="Hello, I am a Button" />   </LinearLayout>

Ex32:横向显示

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="horizontal" >    <TextView        android:layout_width="wrap_content"        android:layout_height="fill_parent"         android:textSize="20dp"         android:rotation="90"        android:text="@string/hello"/>        <TextView android:id="@+id/text"              android:layout_width="wrap_content"              android:layout_height="wrap_content"android:rotation="90"              android:text="TextView" />        <Button android:id="@+id/button"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:rotation="90"            android:text=" Button" />   </LinearLayout>

Ex4:

<?xml version="1.0" encoding="utf-8"?>  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:orientation="vertical"        android:layout_width="fill_parent"      android:layout_height="fill_parent"      >      <TextView android:layout_width="fill_parent"    android:textColor="#ffffff"        android:layout_height="wrap_content"  android:text="Custom Launcher"     />  <RelativeLayout      android:id="@+id/myView"      android:layout_width="fill_parent"      android:layout_height="fill_parent"        >  <com.gsl.launcher.ScrollLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/ScrollLayoutTest"    android:layout_width="fill_parent"    android:layout_height="fill_parent"  android:background="#000000" >  </com.gsl.launcher.ScrollLayout>    <com.gsl.launcher.PageControlView                    android:id="@+id/pageControl"                  android:layout_width="fill_parent"                    android:layout_height="40dp"                  android:background="#8f00000f"                    android:layout_alignParentBottom="true"                  android:gravity="center"/>  </RelativeLayout>  </LinearLayout>