Reiativelayout

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一package cn.edubztx.relativelayout;import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class RelativeLayoutProperty1Activity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_relative_layout_property1);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.relative_layout_property1, menu);return true;}}二<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    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=".RelativeLayoutProperty1Activity" >    <ImageView        android:id="@+id/imageView1"        android:layout_width="100dp"        android:layout_height="100dp"        android:layout_centerInParent="true"        android:src="@drawable/star" />    <ImageView        android:id="@+id/imageView2"        android:layout_width="80dp"        android:layout_height="80dp"        android:layout_alignParentLeft="true"        android:layout_centerVertical="true"        android:src="@drawable/penguin" />    <ImageView        android:id="@+id/imageView3"        android:layout_width="80dp"        android:layout_height="80dp"        android:layout_alignParentRight="true"        android:layout_centerVertical="true"        android:src="@drawable/penguin" />    <ImageView        android:id="@+id/imageView5"        android:layout_width="80dp"        android:layout_height="80dp"        android:layout_alignRight="@+id/imageView1"        android:layout_below="@+id/imageView1"        android:layout_marginTop="19dp"        android:src="@drawable/penguin" />    <ImageView        android:id="@+id/imageView4"        android:layout_width="80dp"        android:layout_height="80dp"        android:layout_above="@+id/imageView1"        android:layout_alignRight="@+id/imageView1"        android:layout_marginBottom="18dp"        android:src="@drawable/penguin" /></RelativeLayout>三<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="cn.edubztx.relativelayout"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="14"        android:targetSdkVersion="18" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="cn.edubztx.relativelayout.MainActivity"            android:label="@string/app_name" >                   </activity>        <activity            android:name="cn.edubztx.relativelayout.RelativeLayoutProperty1Activity"            android:label="@string/title_activity_relative_layout_property1" >             <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>
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