看到一个老外做的不错的android启动菜单的动画效果，小结下。
1 首先在drawable目录下放一些动画要用的图片。
2 splash.xml:
< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android android:layout_width="wrap_content" android:layout_height="wrap_content"android:id="@+id/TheSplashLayout" android:layout_gravity="center" > < ImageView android:layout_width="wrap_content" android:layout_height="wrap_content"android:id="@+id/SplashImageView" android:layout_gravity="center" >
3 点启动窗口动画效果后显示的main.xml
< TextView android:layout_width="fill_parent" android:layout_height="wrap_content"android:text="@string/hello" />
4 SplashScreen.java
这里是欢迎启动类的核心部分
public class SplashScreen extends Activity { /** * The thread to process splash screen events */private Thread mSplashThread;
/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Splash screen viewsetContentView(R.layout.splash); // Start animating the image final ImageView splashImageView = (ImageView) findViewById(R.id.SplashImageView); splashImageView.setBackgroundResource(R.drawable.flag); final AnimationDrawable frameAnimation = (AnimationDrawable)splashImageView.getBackground(); splashImageView.post( new Runnable(){ public void run() { frameAnimation.start(); } }); final SplashScreen sPlashScreen = this ; // The thread to wait for splash screen eventsmSplashThread = new Thread(){ @Override public void run(){ try { synchronized( this ){ //Wait given period of time or exit on touch wait(5000 ); } } catch (InterruptedException ex){ }finish(); // Run next activity Intent intent = new Intent(); intent.setClass(sPlashScreen, MainActivity. class ); startActivity(intent); stop(); } }; mSplashThread.start(); }@Override publicboolean onCreateOptionsMenu(Menu menu){ super .onCreateOptionsMenu(menu); returnfalse ; } /** * Processes splash screen touch events */ @Override public booleanonTouchEvent(MotionEvent evt) { if(evt.getAction() == MotionEvent.ACTION_DOWN) {synchronized (mSplashThread){ mSplashThread.notifyAll(); } } return true ; } 4 为了更好看，在values 目录下添加样式文件 styles.xml:注意下这里
