android--欢迎界面

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欢迎界面的操作创建两个Activity：MainActivity和ActivityDemo

代码如下：

package com.example.helloword;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.view.Menu;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Handler x = new Handler() ;        x.postDelayed(new splashhandler(), 3000) ;    }    class splashhandler implements Runnable{@Overridepublic void run() {startActivity(new Intent(MainActivity.this,Activitydemo.class)) ;MainActivity.this.finish() ;}        }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    }

main.xml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" >    <ImageView       android:layout_width="fill_parent"      android:layout_height="fill_parent"      android:src="@drawable/welcome_logo"      android:scaleType="fitCenter"      android:id="@+id/wordpress_logo"/></LinearLayout>

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