编写App的开场Activity

在android的app和游戏的应用中，都会有个开场场景，老外管这个叫splash。
现在就编写个简单的SplashActivity

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class SplashActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.splash);

		ImageView splashImg = (ImageView) findViewById(R.id.splash_image);
		splashImg.postDelayed(new Runnable() {//这里利用了View的postDelayed

			public void run() {
				Intent intent = new Intent();
				intent.setClass(SplashActivity.this, MainActivity.class);
				startActivity(intent);
				finish();
			}
		}, 1000);
	}
}

下面是splash.xml，layout 文件了

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <ImageView
        android:id="@+id/splash_background"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:scaleType="fitXY"
        android:src="@drawable/splash_floor" />

    <ImageView
        android:id="@+id/splash_image"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:scaleType="fitXY"
        android:src="@drawable/splash_logo" />

    <ImageView
        android:id="@+id/splash_foot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="10.0dip"
        android:src="@drawable/splash_logo_foot" />

</RelativeLayout>