android:id="@+id/SplashImageView"
android:layout_gravity="center"
3 点启动窗口动画效果后显示的main.xml
<LinearLayout xmlns:android="schemas.android.com/apk/res/and…"
android:orientation\="vertical"
android:layout\_width\="fill\_parent"
android:layout\_height\="fill\_parent"
/>
<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 view
setContentView(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 events
mSplashThread = 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
public boolean onCreateOptionsMenu(Menu menu){
super.onCreateOptionsMenu(menu);
return false;
}
/\*\*
\* Processes splash screen touch events
\*/
@Override
public boolean onTouchEvent(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:
<style name="Animations.SplashScreen"> <item name="android:windowEnterAnimation">@anim/appear</item> <item name="android:windowExitAnimation">@anim/disappear</item>
