游戏登陆切换activity时，总是出现闪屏现象，解决方案，暂停线程100毫秒调用startActivity，闪屏解决，代码：
@Override
public void startActivity(final Intent intent) {
new Thread() {
@SuppressWarnings("static-access")
public void run() {
try {
Thread.currentThread().sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
myStartActivity(intent);
};
}.start();
}
public void myStartActivity(Intent intent) {
super.startActivity(intent);
}