Android界面之引导页面

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首先ViewPager需要android-support-v4.jar这个包的支持，来自google提供的一个附加包。大家没有的话去网上随便下个就好。

首先我们先创建一个页面来判断该应用是否是第一次进入，是的话跳转到viewpager引导页，不是的话进入主界面

import android.app.Activity;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Bundle;import android.os.Handler;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.RelativeLayout.LayoutParams;public class GuideActivity extends  Activity{private final int HOME=100;//主界面private final int GUIDE=101;//引导界面private boolean isFirstIn=false;private int TIME=1000;@Overrideprotected void onCreate(Bundle savedInstanceState) {// 首先先创建一个欢迎进入的布局RelativeLayout layout=new RelativeLayout(this);ImageView imageview=new ImageView(this);LayoutParams layoutParams=new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);imageview.setImageResource(R.drawable.splash);imageview.setLayoutParams(layoutParams);layout.addView(imageview);setContentView(layout);init();super.onCreate(savedInstanceState);}private void init() {// 存储数据SharedPreferences sharedPreferences=getSharedPreferences("Android",MODE_PRIVATE);isFirstIn=sharedPreferences.getBoolean("isfirst", true);//判断if (!isFirstIn) {handler.sendEmptyMessageDelayed(HOME,TIME);//给新线程发送一个指令让他进入home界面}else{handler.sendEmptyMessageDelayed(GUIDE, TIME);//给新线程发送一个指令让他进入GUIDE界面Editor editor=sharedPreferences.edit();//修改editor.putBoolean("isfirst", false);editor.commit();//提交}}//新线程Handler handler=new Handler(){public void handleMessage(android.os.Message msg) {switch (msg.what) {case HOME:Intent intent=new Intent(GuideActivity.this, ZhuActivity.class);startActivity(intent);finish();break;case GUIDE:Intent intent1=new Intent(GuideActivity.this, YindaoActivity.class);startActivity(intent1);finish();break;}};};}

接下来是viewpager引导页

import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.view.View;import android.view.View.OnClickListener;public class YindaoActivity extends Activity {private ViewPager viewPager;private List<View> alist;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.activity_yindao);viewPager=(ViewPager) findViewById(R.id.viewpager);        alist=new ArrayList<View>();        //布局解析器        View view1=View.inflate(this, R.layout.fragment1, null);        View view2=View.inflate(this, R.layout.fragment2, null);        View view3=View.inflate(this, R.layout.fragment3, null);        alist.add(view1);        alist.add(view2);        alist.add(view3);                        viewPager.setAdapter(adapter);                //点击事件        view3.findViewById(R.id.start).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {startActivity(new Intent(YindaoActivity.this, ZhuActivity.class));finish();}});        }PagerAdapter adapter=new PagerAdapter() {@Overridepublic boolean isViewFromObject(View arg0, Object arg1) {// TODO Auto-generated method stubreturn arg0 == arg1;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn alist.size();}// 销毁视图public void destroyItem(android.view.ViewGroup container, int position,Object object) {container.removeView(alist.get(position));};// 重新加载视图public Object instantiateItem(android.view.ViewGroup container,int position) {container.addView(alist.get(position));return alist.get(position);};};}

主界面的话这里就不写了，大家根据需求自己去写

还有大家记得把首次进入设置成GuideActivity.

下面是fragment3的布局，其他两个也差不多，就不写了

<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:orientation="vertical"    tools:context=".MainActivity" >      <ImageView        android:scaleType="fitXY"        android:src="@drawable/tutorial_3"        android:layout_width="wrap_content"        android:layout_height="wrap_content"         />    <Button        android:id="@+id/start"                android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:background="@drawable/new_feature_bt"        android:layout_alignParentBottom="true"        android:layout_centerHorizontal="true"        android:textSize="17dp"       /> </RelativeLayout>

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