启动页和引导页 小例子

效果图：

启动页：

package com.bfec.educationplatform.models.navigation.ui.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import com.bfec.BaseFramework.libraries.common.util.storage.SharedPrefUtil;
import com.bfec.educationplatform.R;

import java.lang.ref.WeakReference;

/**
 * 启动页
 */
public class StartPageAty extends Activity {
    private static final int WHAT_HOME = 1000;
    private static final int WHAT_GUIDE = 1001;
    private static final int DELAY_TIME = 2000;
    private StartPageHandler handler = new StartPageHandler(this);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.start_page);
        // Init
        final String KEY_IS_FIRST = "isFirst";
        SharedPrefUtil spUtil = SharedPrefUtil.getInstance(this, "config", MODE_PRIVATE);
        if (spUtil.getBool(KEY_IS_FIRST, true)) {
            handler.sendEmptyMessageDelayed(WHAT_GUIDE, DELAY_TIME);
            spUtil.putBool(KEY_IS_FIRST, false).commit();
        } else
            handler.sendEmptyMessageDelayed(WHAT_HOME, DELAY_TIME);
    }

    private void goDestination(Class cls) {
        startActivity(new Intent(this, cls));
        finish();
    }

    private static class StartPageHandler extends Handler {
        private WeakReference<StartPageAty> mAty;

        public StartPageHandler(StartPageAty aty) {
            mAty = new WeakReference<>(aty);
        }

        @Override
        public void handleMessage(Message msg) {
            StartPageAty aty = mAty.get();
            if (aty == null)
                return;
            switch (msg.what) {
                case WHAT_GUIDE:   // 引导页
                    aty.goDestination(GuideAty.class);
                    break;
                case WHAT_HOME:   // 首页
                    aty.goDestination(HomePageAty.class);
            }
        }
    }
}

引导页：

 

package com.bfec.educationplatform.models.navigation.ui.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import com.bfec.educationplatform.R;
import com.bfec.educationplatform.models.navigation.ui.adapter.ViewPagerAdapter;

import java.util.ArrayList;

/**
 * 引导页
 */
public class GuideAty extends Activity {
    // 图片资源ID
    private static final int[] IMG_ID = {R.drawable.u1_state0, R.drawable.u1_state1, R.drawable.u1_state2};
    // ViewPager
    private ViewPager viewPager;
    private ArrayList<View> views = new ArrayList<>();
    // 开始按钮
    private Button btnStart;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.start_guide);
        // ViewPager
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(-1, -1);
        for (int id : IMG_ID) {
            ImageView imgView = new ImageView(this);
            imgView.setLayoutParams(params);
            imgView.setScaleType(ScaleType.FIT_XY);
            imgView.setImageResource(id);
            views.add(imgView);
        }
        ViewPagerAdapter vpAdapter = new ViewPagerAdapter(views);
        viewPager = (ViewPager) findViewById(R.id.viewpager);
        viewPager.setAdapter(vpAdapter);
        viewPager.setOnPageChangeListener(new OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            }

            @Override
            public void onPageSelected(int position) {
                setCurPage(position);
                if (position == IMG_ID.length - 1)
                    btnStart.setVisibility(View.VISIBLE);
                else
                    btnStart.setVisibility(View.GONE);
            }

            @Override
            public void onPageScrollStateChanged(int state) {
            }
        });
        // 开始按钮
        btnStart = (Button) findViewById(R.id.startbtn);
        btnStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(GuideAty.this, HomePageAty.class));
                finish();
            }
        });
    }

    private void setCurPage(int position) {
        viewPager.setCurrentItem(position);
    }
}