Android 新手引导

public class MainActivity extends Activity {

// public List<File> Localphotos_List = new ArrayList<File>();
private static final int[] pics = { R.drawable.guide1, R.drawable.guide2, R.drawable.guide3, R.drawable.guide4, R.drawable.guide5 };

private ViewPager mViewPager;
private ImageView mPage0;
private ImageView mPage1;
private ImageView mPage2;
private ImageView mPage3;
private ImageView mPage4;
private Button start_bn;

private boolean isFirste;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);

// getPhotos();

// isFirste =
// SharedPreferencesUtils.getFirstLoginState(this.getApplicationContext());

mViewPager = (ViewPager) findViewById(R.id.whatsnew_viewpager);
start_bn = (Button) findViewById(R.id.start_bn);
start_bn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {

}
});

mViewPager.setOnPageChangeListener(new MyOnPageChangeListener());

mPage0 = (ImageView) findViewById(R.id.page0);
mPage1 = (ImageView) findViewById(R.id.page1);
mPage2 = (ImageView) findViewById(R.id.page2);
mPage3 = (ImageView) findViewById(R.id.page3);
mPage4 = (ImageView) findViewById(R.id.page4);

final ArrayList<ImageView> list = new ArrayList<ImageView>();
// 初始化引导图片列表
for (int i = 0; i < pics.length; i++) {
ImageView iv = new ImageView(this);
iv.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
iv.setImageResource(pics[i]);
iv.setScaleType(ImageView.ScaleType.CENTER_CROP);
list.add(iv);
}

/*
* if (isFirste) { mPage3.setVisibility(View.VISIBLE); list.add(view4); }
* else { mPage3.setVisibility(View.GONE); }
*/

PagerAdapter adapter = new PagerAdapter() {

@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}

@Override
public int getCount() {
return list.size();
}

@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager) container).removeView(list.get(position));
}

@Override
public Object instantiateItem(View container, int position) {
((ViewPager) container).addView(list.get(position));
return list.get(position);
}
};

mViewPager.setAdapter(adapter);
}

public class MyOnPageChangeListener implements OnPageChangeListener {

@Override
public void onPageScrollStateChanged(int arg0) {

}

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

}

@Override
public void onPageSelected(int arg0) {
switch (arg0) {
case 0:
display();
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;

case 1:
display();
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;

case 2:
display();
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;

case 3:
display();
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));

/*          mPage3.setVisibility(View.GONE);
mPage0.setVisibility(View.GONE);
mPage1.setVisibility(View.GONE);
mPage2.setVisibility(View.GONE);*/

/*
* SharedPreferencesUtils.saveFirstLoginState(Activity_WhatsNew.this.
* getApplicationContext()); File dbFile = new
* File(ResourceManager.DBDIR_PATH + "/userprofiledb.db"); if
* (!dbFile.exists()) { UserProfileDB.instance().createNew(); } new
* Handler().postDelayed(new Runnable() { public void run() {
* startActivity(new Intent(Activity_WhatsNew.this,
* Activity_LoginForFirst.class)); finish(); } }, 500);
*/
break;

case 4:
/*          mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page_now));*/
hide();
break;
}
}
}

private void hide() {
mPage0.setVisibility(View.GONE);
mPage1.setVisibility(View.GONE);
mPage2.setVisibility(View.GONE);
mPage3.setVisibility(View.GONE);
mPage4.setVisibility(View.GONE);
start_bn.setVisibility(View.VISIBLE);
}

private void display() {
mPage0.setVisibility(View.VISIBLE);
mPage1.setVisibility(View.VISIBLE);
mPage2.setVisibility(View.VISIBLE);
mPage3.setVisibility(View.VISIBLE);
mPage4.setVisibility(View.VISIBLE);
start_bn.setVisibility(View.GONE);
}

}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF"
android:orientation="vertical" >

<android.support.v4.view.ViewPager
android:id="@+id/whatsnew_viewpager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" >
</android.support.v4.view.ViewPager>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="30dp"
android:gravity="center_horizontal" >

<ImageView
android:id="@+id/page0"
android:layout_width="10dp"
android:layout_height="10dp"
android:background="@drawable/page_now" />

<ImageView
android:id="@+id/page1"
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_marginLeft="10dp"
android:background="@drawable/page" />

<ImageView
android:id="@+id/page2"
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_marginLeft="10dp"
android:background="@drawable/page" />

<ImageView
android:id="@+id/page3"
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_marginLeft="10dp"
android:background="@drawable/page" />

<ImageView
android:id="@+id/page4"
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_marginLeft="10dp"
android:background="@drawable/page" />
</LinearLayout>
</LinearLayout>

<Button
android:id="@+id/start_bn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="40dp"
android:layout_marginLeft="40dp"
android:layout_marginRight="40dp"
android:text="马上开始"
android:visibility="gone"
/>

</FrameLayout>