Android中自动跳转

先看效果图吧

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Activity类

package com.xm;

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.SeekBar.OnSeekBarChangeListener;
/**
 * 页面跳转页面
 * @author Administrator
 *
 */
public class Music_ym extends Activity {
    private final long SPLASH_LENGTH = 2000;
    Handler handler = new Handler();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainym);
        handler.postDelayed(new Runnable() {    
            @Override
            public void run() {
                Intent intent = new Intent(Music_ym.this,Music.class);
                startActivity(intent);
                finish();
            }
        }, SPLASH_LENGTH);
    }
}

xml配置文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    >  
    <ImageView
        android:layout_width="wrap_content"  
        android:layout_height="fill_parent"  
        android:src="@drawable/abc"
    />
</LinearLayout>