前言：

• 啟動app先進入閃屏界面，接下來跳轉到viewpager引導界面。。。。

整體結構就是 這樣：

整體結構.jpg

• 布局文件
  （splash.xml）直接一個背景
  （view_1 view_2 view_3.xml）直接通過ImageView引用一張圖片
  （welcome.xml）TextView一句話

（gudide.xml）

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </android.support.v4.view.ViewPager>
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" 
        android:gravity="center_horizontal"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal"
        >

        <ImageView
            android:id="@+id/iv_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/login_point_selected" />

        <ImageView
            android:id="@+id/iv_2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/login_point" />

        <ImageView
            android:id="@+id/iv_3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/login_point" />
    </LinearLayout>
</RelativeLayout>

• Splash.java(閃屏界面)

public class SplashActivity extends Activity {
    private Thread newThread;
    private long threadtime = 3000;
    private boolean ispause = false;
    private boolean isSpinshActivity = true;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //設置圖片格式 
        setondraweble();
        setContentView(R.layout.splash);
        //設置睡眠時間
        setSpinshTime();
    }
    
    private void setSpinshTime() {
        newThread = new Thread(){
            @Override
            public void run() {
                super.run();
                int ms = 0;
                try {
                while(isSpinshActivity&&ms<threadtime){
                    sleep(100);
                    if(!ispause){
                        ms+=100;    
                    }
                } 
                    //設置跳轉
                    Intent i = new Intent(SplashActivity.this,GuideActivity.class);
                    startActivity(i);
                    finish();
                    }catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };
        newThread.start();
    }
    //設置全屏
    private void setondraweble() {

        // 設置無標題
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        // 設置全屏參數
        int flag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
        // 獲得window
        Window myWindow = this.getWindow();
        // 輸出
        myWindow.setFlags(flag, flag);
    }
    // 暫停界面
        @Override
        protected void onPause() {
            super.onPause();
            ispause = true;
        }

        // 又回到這個界面
        @Override
        protected void onResume() {
            super.onResume();
            ispause = false;
        }
}

• GuideActivity.java(viewpager引導界面)

public class GuideActivity extends Activity implements OnClickListener,OnPageChangeListener{
    private ViewPager viewpager;
    private List<View> views;
    private MyPageAdapter vpadapter;
    private Button join;
    private ImageView[] dots;
    private int viewid[] = {R.id.iv_1,R.id.iv_2,R.id.iv_3};
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.guide);
        
        //我們先要得到view對象
        iviview();
        
        //接下來圖片初始化
        inidots();
        
    }
    //初始化更為方便
    private void inidots() {
        dots = new ImageView[views.size()];
        for(int i=0;i<views.size();i++){
            dots[i] = (ImageView) findViewById(viewid[i]);
        }

        
    }
    @SuppressLint("InflateParams") @SuppressWarnings("static-access")
    private void iviview() {
        //獲得view對象
        LayoutInflater lf = getLayoutInflater().from(GuideActivity.this);
        View view1 = lf.inflate(R.layout.view_1, null);
        View view2 = lf.inflate(R.layout.view_2, null);
        View view3 = lf.inflate(R.layout.view_3, null);
        views  = new ArrayList<View>();// 將要分頁顯示的View裝入數組中          
        views .add(view1); 
        views .add(view2);
        views .add(view3);
        
        //調用adapter
        vpadapter = new MyPageAdapter(views,this);
        //找到viewpager控件
        viewpager = (ViewPager) findViewById(R.id.viewpager);
        viewpager.setAdapter(vpadapter);
        //判斷Button的位置
        join = (Button)views.get(2).findViewById(R.id.join);
        //設置監聽事件
        join.setOnClickListener(this);
        setOnPageChangeListener(this);
    }
    //按鈕點擊事件
    @Override
    public void onClick(View arg0) {
        Intent i = new Intent(GuideActivity.this,ViewPagerDemoActivity.class);
        startActivity(i);
        finish();
    }
    @Override
    public void onPageScrollStateChanged(int arg0) {
        
    }
    @Override
    public void onPageScrolled(int arg0, float arg1, int arg2) {
        
    }
    //選擇了這個pager(和小圓點)
    @Override
    public void onPageSelected(int position) {
        for(int i =0;i<views.size();i++){
            //滑動到當前頁面 ，小圓點變化
            if(position==i){
                //引用資源
                dots[i].setImageResource(R.id.iv_1);
            }
            else{
                dots[i].setImageResource(R.id.iv_2);
            }
            
        }
    }
}

• MyPageAdapter.java(自定義Adapter繼承PagerAdapter)
  實現4個方法

public class MyPageAdapter extends PagerAdapter{
    private List<View> views;
    @SuppressWarnings("unused")
    private Context context;
    

      public MyPageAdapter(List<View> views, Context context) {
        super();
        this.views = views;
        this.context = context;
    }

    // viewpager中的要顯示的View的總數量
    @Override
    public int getCount()
    {
        return views.size();
    }

    // 滑動切換的時候銷毀當前的View
    @Override
    public void destroyItem(ViewGroup container, int position,
            Object object)
    {
      ((ViewPager) container).removeView(views.get(position));
    }

    // 每次滑動的時候生成的View
    @Override
    public Object instantiateItem(ViewGroup container, int position)
    {
        ((ViewPager) container).addView(views.get(position));
        return views.get(position);
    }
   // 官方建議這樣寫
    @Override
    public boolean isViewFromObject(View arg0, Object arg1)
    {
        return arg0 == arg1;
    }
}

最后由引導界面進入主Activity界面

注:Activity不要忘記注冊

<activity
            android:name=".SplashActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".ViewPagerDemoActivity"></activity>
        <activity android:name=".GuideActivity"></activity>

結果:

viewpager.gif