1.引导页的4个界面布局,里面加载一张背景图片
插入到guide的界面布局中(这里不用fragment)
guide_background_fragment1.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/guide_background1"/>
</LinearLayout>
guide_background_fragment2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/guide_background2"/>
</LinearLayout>
guide_background_fragment3.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/guide_background3"/>
</LinearLayout>
guide_background_fragment4.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/guide_background4"/>
</LinearLayout>
guide.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="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<LinearLayout
android:id="@+id/l1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_centerInParent="true"
android:layout_alignParentBottom="true"
>
<ImageView
android:id="@+id/imageV1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
<ImageView
android:id="@+id/imageV2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
<ImageView
android:id="@+id/imageV3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
<ImageView
android:id="@+id/imageV4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
</LinearLayout>
</RelativeLayout>
2. 适配器
GuidePagerAdapter.java
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import java.util.List;
public class GuidePagerAdapter extends PagerAdapter{
private Context context;
private List<View> views;
public GuidePagerAdapter(List<View> views, Context context) {
this.context = context;
this.views = views;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return views.size();
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(views.get(position));
return views.get(position);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(views.get(position));
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return (arg0 == arg1);
}
}
Guide.java
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by zps on 2015/9/3.
*/
public class Guide extends Activity implements ViewPager.OnPageChangeListener {
private List<View> listView;
private ViewPager viewPager;
private GuidePagerAdapter vpAdapter;
private int[] dotsId = {R.id.imageV1, R.id.imageV2, R.id.imageV3, R.id.imageV4};
private ImageView[] dotsView;
private Button lijitiyanButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.view_pager);
init();
initDots();
}
private void initDots() {
dotsView = new ImageView[listView.size()];
for (int i = 0; i < listView.size(); i++) {
dotsView[i] = (ImageView) findViewById(dotsId[i]);
}
}
private void init() {
LayoutInflater inflater = LayoutInflater.from(this);
listView = new ArrayList<View>();
//获取View对象
View view1 = inflater.inflate(R.layout.view_pager_img1, null);
View view2 = inflater.inflate(R.layout.view_pager_img2, null);
View view3 = inflater.inflate(R.layout.view_pager_img3, null);
View view4 = inflater.inflate(R.layout.view_pager_img4, null);
//view对象放在List<view>中
listView.add(view1);
listView.add(view2);
listView.add(view3);
listView.add(view4);
//List<view>放在适配器ViewPagerAdapter中
vpAdapter = new GuidePagerAdapter(listView, this);
//获取ViewPage,设置适配器;
viewPager = (ViewPager) findViewById(R.id.viewpager);
viewPager.setAdapter(vpAdapter);
viewPager.addOnPageChangeListener(this);
lijitiyanButton =(Button) view4.findViewById(R.id.lijitiyan_button);
lijitiyanButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Guide.this,MainActivity.class);
startActivity(intent);
finish();
}
});
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
for (int i = 0; i < dotsId.length; i++) {
if(i == position){
dotsView[i].setImageResource(R.drawable.login_point_selected);
}else {
dotsView[i].setImageResource(R.drawable.login_point);
}
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
}
3.引导页的判断:是否第一次进入
public class GuideWelcome extends Activity{
private static final int TIME = 2000;
private static boolean isFirstIn = false;
private static final int First = 1000;
private static final int NoFirst = 1001;
private Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
switch (msg.what){
case First:
FirstIn();
break;
case NoFirst:
NoFirstIn();
break;
default:
break;
}
}
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);
init();
}
private void init() {
//存储文件名为"gudiewelcome"
SharedPreferences sharedPreferences = getSharedPreferences("guidewelcome",MODE_PRIVATE);
isFirstIn = sharedPreferences.getBoolean("isFirstIn",true);
if(!isFirstIn){
handler.sendEmptyMessageDelayed(NoFirst,TIME);
}else {
handler.sendEmptyMessageDelayed(First,TIME);
//存储文件key为isFirstIn,值为false
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putBoolean("isFirstIn",false);
editor.commit();
}
}
private void FirstIn(){
Intent intent = new Intent(GuideWelcome.this,Guide.class);
startActivity(intent);
finish();
}
private void NoFirstIn(){
Intent intent = new Intent(GuideWelcome.this,TabMainActivity.class);
startActivity(intent);
finish();
}
}
时间： 2024-10-20 02:25:03