SHIYAN

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以上是DialogActivity.java

package com.example.activitylifecycle;import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class DialogActivity extends Activity{@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_dialog);}@Overridepublic boolean onCreateOptionsMenu(Menu menu){// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.dialog, menu);return true;}}

以上是MainActivity.java

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.activitylifecycle"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="19"        android:targetSdkVersion="19" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.example.activitylifecycle.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <activity            android:name="com.example.activitylifecycle.DialogActivity"            android:theme="@android:style/Theme.Dialog"            android:label="@string/title_activity_dialog" >        </activity>    </application></manifest>

以上是MainActivity.HTML

以下是运行效果图（截图效果不好，仅此一张）

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