Android启动页面定时跳转的三种方法

 final Intent it = new Intent(this, Activity1.class); //你要转向的Activity   
    Timer timer = new Timer();  
    TimerTask task = new TimerTask() {  
      @Override  
      public void run() {   
      startActivity(it); //执行  
       }  
     }; 
    timer.schedule(task, 1000 * 10); //10秒后 

public class WelcomeActivity extends Activity { 
 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
<span style="white-space:pre"> </span>// TODO Auto-generated method stub 
<span style="white-space:pre"> </span>super.onCreate(savedInstanceState); 
<span style="white-space:pre"> </span>setContentView(R.layout.welcome); 
<span style="white-space:pre"> </span>new Handler().postDelayed(r, 1000);// 1秒后关闭，并跳转到主页面 
} 
 Runnable r = new Runnable() { 
 @Override 
 public void run() { 
 // TODO Auto-generated method stub 
 Intent intent = new Intent(); 
 intent.setClass(WelcomeActivity.this, MainActivity.class); 
 startActivity(intent); 
 finish(); 
   } 
  }; 
} 

<?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" > 
   <ImageView 
    android:id="@+id/iv_splash_mainview" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="@drawable/splash_bg" 
    android:src="@drawable/splash_sheep_n" /> 
</LinearLayout> 

public class <span style="font-family: Arial, Helvetica, sans-serif;">splash</span><span style="font-family: Arial, Helvetica, sans-serif;">Activity extends Activity {</span> 
   
  private ImageView iv_mainview; 
  private AnimationSet as; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
     
    //去掉标题 
    //requestWindowFeature(Window.FEATURE_NO_TITLE); 
    initView();// 初始化界面 
 
    startAnimation();//开始播放动画  
 
    initEvent();//初始化事件 
  } 
 
   
  private void initEvent() { 
    //1、监听动画播放完的事件，只是一处用到事件就用匿名类对象，多处声明成员变量用  
    as.setAnimationListener(new AnimationListener() { 
 
      @Override 
      public void onAnimationStart(Animation animation) { 
         
      } 
 
      @Override 
      public void onAnimationRepeat(Animation animation) { 
 
      } 
 
      //监听动画播放完 
      @Override 
      public void onAnimationEnd(Animation animation) { 
         
        //  
        Intent main = new Intent(<span style="font-family: Arial, Helvetica, sans-serif;">splash</span><span style="font-family: Arial, Helvetica, sans-serif;">Activity </span><span style="font-family: Arial, Helvetica, sans-serif;">.this,MainActivity.class);</span> 
        startActivity(main);//主界面 
       
        //关闭自己 
        finish(); 
      } 
    }); 
  } 
 
  /** 
   * 开始播放动画：旋转，缩放，渐变 
   */ 
  private void startAnimation() { 
    // false 代表动画集中每种动画都采用各自的动画插入器（数字函数） 
    as = new AnimationSet(false); 
 
    //旋转动画，锚点 
    RotateAnimation ra = new RotateAnimation( 
        0, 360, 
        Animation.RELATIVE_TO_SELF, 0.5f, 
        Animation.RELATIVE_TO_SELF,0.5f);//设置锚点为图片的中心点 
    // 设置动画播放时间 
    ra.setDuration(2000); 
    ra.setFillAfter(true);//动画播放完之后，停留在当前状态  
 
    // 添加到动画集 
    as.addAnimation(ra); 
 
    // 渐变动画 
    AlphaAnimation aa = new AlphaAnimation(0, 1);//由完全透明到不透明  
    //  
    aa.setDuration(2000); 
    aa.setFillAfter(true);// 
 
    //  
    as.addAnimation(aa); 
 
    // 缩放动画 
    ScaleAnimation sa = new ScaleAnimation( 
        0, 1, 0, 1, 
        Animation.RELATIVE_TO_SELF, 0.5f,  
        Animation.RELATIVE_TO_SELF, 0.5f); 
    //  
    sa.setDuration(2000); 
    sa.setFillAfter(true);// 
 
    //  
    as.addAnimation(sa); 
 
    // 播放动画 
    iv_mainview.startAnimation(as); 
 
    // 动画播完进入下一个界面 ：向导界面或者主界面 
    //1、监听动画播放完的事件 
     
 
  } 
 
  private void initView() { 
    // 设置主界面 
    setContentView(R.layout.onemain); 
 
    // 获取背景图片 
    iv_mainview = (ImageView) findViewById(R.id.iv_splash_mainview); 
 
  } 
 
     
   
   
}