android 启动页、引导页

自己整理的一套 启动页+引导页，文章内有判断第一次显示引导页









// 启动页

public class SplashActivity extends Activity {

boolean isFirstIn = false;

private static final int GO_HOME = 1000;

private static final int GO_GUIDE = 1001;

private static final long SPLASH_DELAY_MILLIS = 3000;

private static final String SHAREDPREFERENCES_NAME = "first_pref";

private Handler mHandler = new Handler() {

@Override

public void handleMessage(Message msg) {

switch (msg.what) {

case GO_HOME:

goHome();

break;

case GO_GUIDE:

goGuide();

break;

}

super.handleMessage(msg);

}

};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.splash);

init();

}

private void init() {

SharedPreferences preferences = getSharedPreferences(

SHAREDPREFERENCES_NAME, MODE_PRIVATE);

isFirstIn = preferences.getBoolean("isFirstIn", true);

if (!isFirstIn) {

mHandler.sendEmptyMessageDelayed(GO_HOME, SPLASH_DELAY_MILLIS);

} else {

mHandler.sendEmptyMessageDelayed(GO_GUIDE, SPLASH_DELAY_MILLIS);

}

}

private void goHome() {

Intent intent = new Intent(SplashActivity.this, MainActivity.class);

SplashActivity.this.startActivity(intent);

SplashActivity.this.finish();

}

private void goGuide() {

Intent intent = new Intent(SplashActivity.this, GuideActivity.class);

SplashActivity.this.startActivity(intent);

SplashActivity.this.finish();

}

}

// 引导页

public class GuideActivity extends Activity implements OnPageChangeListener {

private ViewPager vp;

private ViewPagerAdapter vpAdapter;

private List<View> views;

private ImageView[] dots;

private int currentIndex;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.guide);

initViews();

initDots();

}

private void initViews() {

LayoutInflater inflater = LayoutInflater.from(this);

views = new ArrayList<View>();

views.add(inflater.inflate(R.layout.what_new_one, null));

views.add(inflater.inflate(R.layout.what_new_two, null));

views.add(inflater.inflate(R.layout.what_new_three, null));

views.add(inflater.inflate(R.layout.what_new_four, null));

vpAdapter = new ViewPagerAdapter(views, this);

vp = (ViewPager) findViewById(R.id.viewpager);

vp.setAdapter(vpAdapter);

vp.setOnPageChangeListener(this);

}

private void initDots() {

LinearLayout ll = (LinearLayout) findViewById(R.id.ll);

dots = new ImageView[views.size()];

for (int i = 0; i < views.size(); i++) {

dots[i] = (ImageView) ll.getChildAt(i);

dots[i].setEnabled(true);

}

currentIndex = 0;

dots[currentIndex].setEnabled(false);

}

private void setCurrentDot(int position) {

if (position < 0 || position > views.size() - 1

|| currentIndex == position) {

return;

}

dots[position].setEnabled(false);

dots[currentIndex].setEnabled(true);

currentIndex = position;

}

@Override

public void onPageScrollStateChanged(int arg0) {

}

@Override

public void onPageScrolled(int arg0, float arg1, int arg2) {

}

@Override

public void onPageSelected(int arg0) {

setCurrentDot(arg0);

}

//viewPager类

public class ViewPagerAdapter extends PagerAdapter {

private List<View> views;

private Activity activity;

private static final String SHAREDPREFERENCES_NAME = "first_pref";

public ViewPagerAdapter(List<View> views, Activity activity) {

this.views = views;

this.activity = activity;

}

@Override

public void destroyItem(View arg0, int arg1, Object arg2) {

((ViewPager) arg0).removeView(views.get(arg1));

}

@Override

public void finishUpdate(View arg0) {

}

@Override

public int getCount() {

if (views != null) {

return views.size();

}

return 0;

}

@Override

public Object instantiateItem(View arg0, int arg1) {

((ViewPager) arg0).addView(views.get(arg1), 0);

if (arg1 == views.size() - 1) {

ImageView mStartWeiboImageButton = (ImageView) arg0

.findViewById(R.id.iv_start_weibo);

mStartWeiboImageButton.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

setGuided();

goHome();

}

});

}

return views.get(arg1);

}

private void goHome() {

Intent intent = new Intent(activity, MainActivity.class);

activity.startActivity(intent);

activity.finish();

}

private void setGuided() {

SharedPreferences preferences = activity.getSharedPreferences(

SHAREDPREFERENCES_NAME, Context.MODE_PRIVATE);

Editor editor = preferences.edit();

editor.putBoolean("isFirstIn", false);

editor.commit();

}

@Override

public boolean isViewFromObject(View arg0, Object arg1) {

return (arg0 == arg1);

}

@Override

public void restoreState(Parcelable arg0, ClassLoader arg1) {

}

@Override

public Parcelable saveState() {

return null;

}

@Override

public void startUpdate(View arg0) {

}

源码下载地址：http://download.csdn.net/detail/u013752594/8897697