闪屏+ViewPager(引导界面)

前言：

• 启动app先进入闪屏界面，接下来跳转到viewpager引导界面。。。。

整体结构就是 这样：

整体结构.jpg

• 布局文件
  （splash.xml）直接一个背景
  （view_1 view_2 view_3.xml）直接通过ImageView引用一张图片
  （welcome.xml）TextView一句话

（gudide.xml）

• Splash.java(闪屏界面)

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);
        //设置图片格式 
        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

• GuideActivity.java(viewpager引导界面)

public class GuideActivity extends Activity implements OnClickListener,OnPageChangeListener{
    private ViewPager viewpager;
    private List 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);
        
        //我们先要得到view对象
        iviview();
        
        //接下来图片初始化
        inidots();
        
    }
    //初始化更为方便
    private void inidots() {
        dots = new ImageView[views.size()];
        for(int i=0;i();// 将要分页显示的View装入数组中          
        views .add(view1); 
        views .add(view2);
        views .add(view3);
        
        //调用adapter
        vpadapter = new MyPageAdapter(views,this);
        //找到viewpager控件
        viewpager = (ViewPager) findViewById(R.id.viewpager);
        viewpager.setAdapter(vpadapter);
        //判断Button的位置
        join = (Button)views.get(2).findViewById(R.id.join);
        //设置监听事件
        join.setOnClickListener(this);
        setOnPageChangeListener(this);
    }
    //按钮点击事件
    @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) {
        
    }
    //选择了这个pager(和小圆点)
    @Override
    public void onPageSelected(int position) {
        for(int i =0;i

• MyPageAdapter.java(自定义Adapter继承PagerAdapter)
  实现4个方法

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

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

    // viewpager中的要显示的View的总数量
    @Override
    public int getCount()
    {
        return views.size();
    }

    // 滑动切换的时候销毁当前的View
    @Override
    public void destroyItem(ViewGroup container, int position,
            Object object)
    {
      ((ViewPager) container).removeView(views.get(position));
    }

    // 每次滑动的时候生成的View
    @Override
    public Object instantiateItem(ViewGroup container, int position)
    {
        ((ViewPager) container).addView(views.get(position));
        return views.get(position);
    }
   // 官方建议这样写
    @Override
    public boolean isViewFromObject(View arg0, Object arg1)
    {
        return arg0 == arg1;
    }
}

最后由引导界面进入主Activity界面

注:Activity不要忘记注册

结果:

viewpager.gif