<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@drawable/splash"
  tools:context=".SplashActivity">
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingBottom="@dimen/activity_vertical_margin"
  android:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  tools:context="com.lin.mr.mystudy.HomeActivity">
  <TextView
    android:textSize="24sp"
    android:text="HomeActivity"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
</RelativeLayout>

public class SplashActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);
    //方法一：开启一个子线程执行跳转任务
    new Thread(){
      @Override
      public void run() {
        super.run();
        try {
          Thread.sleep(2000);
          Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
          startActivity(intent);
        } catch (InterruptedException e) {
          e.printStackTrace();
        }
      }
    }.start();
  }
}

public class SplashActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);
    //方法二：使用Handler发送延迟消息
    new Handler(new Handler.Callback() {
      @Override
      public boolean handleMessage(Message msg) {
        Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
        startActivity(intent);
        return false;
      }
    }).sendEmptyMessageDelayed(0,2000);
  }

public class SplashActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);
    //方法三：使用Java计时器
    Timer timer = new Timer();
    timer.schedule(new MyTask(),2000);//定时器延时执行任务的方法
  }
  //方法三：使用Java计时器
  class MyTask extends TimerTask{
    @Override
    public void run() {
      Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
      startActivity(intent);
    }
  }
}

package com.lin.mr.mystudy;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import java.util.Timer;
import java.util.TimerTask;
public class SplashActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);
    //方法一：开启一个子线程执行跳转任务
//    new Thread(){
//      @Override
//      public void run() {
//        super.run();
//        try {
//          Thread.sleep(2000);
//          Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
//          startActivity(intent);
//        } catch (InterruptedException e) {
//          e.printStackTrace();
//        }
//      }
//    }.start();
    //方法二：使用Handler发送延迟消息
//    new Handler(new Handler.Callback() {
//      @Override
//      public boolean handleMessage(Message msg) {
//        Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
//        startActivity(intent);
//        return false;
//      }
//    }).sendEmptyMessageDelayed(0,2000);
    //方法三：使用Java计时器
    Timer timer = new Timer();
    timer.schedule(new MyTask(),2000);//定时器延时执行任务的方法
  }
  //方法三：使用Java计时器
  class MyTask extends TimerTask{
    @Override
    public void run() {
      Intent intent = new Intent(SplashActivity.this,HomeActivity.class);
      startActivity(intent);
    }
  }
}