android 引导界面的实现 .

文章出处：http://blog.youkuaiyun.com/djy1992/article/details/9020831

现在越来越多程序都有引导页面了。

网上资料不全。现在自己实现下。

下图是总的目录结构。

/**
 * 实现
 * @author dujinyang
 *
 */

顺序是： OneAcitivity  -->MainActivity -> TwoActivity

然后第2次进去就是：OneActivity -> TwoActivity

代码里都有注释的了，这里就不多说了。

OneActivity的代码如下：

[java] view plain copy print ?

1. package cn.djy.activity;  
2.   
3. import android.app.Activity;  
4. import android.content.Context;  
5. import android.content.Intent;  
6. import android.os.Bundle;  
7. import android.os.Handler;  
8.   
9. /** 
10.  * 开机动画 
11.  * @author Administrator 
12.  * 
13.  */  
14. public class OneActivity extends Activity {  
15.   
16.     @Override  
17.     protected void onCreate(Bundle savedInstanceState) {  
18.         // TODO Auto-generated method stub   
19.         super.onCreate(savedInstanceState);  
20.         setContentView(R.layout.one);  
21.           
22.         boolean flag=this.isFirstEnter(getApplicationContext(), this.getClass().getName());  
23.         if(flag)  
24.             mHandler.sendEmptyMessageDelayed(SWITCH_GUIDACTIVITY,4000);  
25.         else  
26.             mHandler.sendEmptyMessageDelayed(SWITCH_TWOACTIVITY, 4000);  
27.           
28.     }  
29.   
30.     //***********************************************************************   
31.     //判断应用是否初次加载，读取SharedPreferences 的字段   
32.     //***********************************************************************   
33.     private static final String SHAREDPREFERENCES_NAME="yang";  
34.     private static final String KEY_GUIDE_ACTIVITY="Open";  
35.     /**  
36.      * mResultStr.equalsIgnoreCase("false") 返回FALSE  
37.      * TRUE 则为空值  
38.      * @param context  
39.      * @param className  
40.      * @return boolean  
41.      */  
42.     private boolean isFirstEnter(Context context,String className){  
43.         if(context==null || className ==null || "".equalsIgnoreCase(className)) return false;  
44.         String mResultStr=context.getSharedPreferences(SHAREDPREFERENCES_NAME,Context.MODE_WORLD_READABLE).getString(KEY_GUIDE_ACTIVITY, "");  
45.         if(mResultStr.equalsIgnoreCase("false"))  
46.             return false;  
47.         else  
48.             return true;  
49.     }  
50.       
51.       
52.     //****************************************   
53.     //Handler:跳转至不同页面   
54.     //****************************************   
55.     private final static int SWITCH_TWOACTIVITY=1000; //主页   
56.       
57.     private final static int SWITCH_GUIDACTIVITY=1001; //滑动手势   
58.     private Handler mHandler=new Handler(){  
59.         public void handleMessage(android.os.Message msg) {  
60.             switch (msg.what) {  
61.             case SWITCH_TWOACTIVITY:  
62.                     Intent intent=new Intent();  
63.                     intent.setClass(OneActivity.this,TwoActivity.class);  
64.                     OneActivity.this.startActivity(intent);  
65.                 //  OneActivity.this.finish();   
66.                 break;  
67.             case SWITCH_GUIDACTIVITY:  
68.                     Intent intents=new Intent();  
69.                     intents.setClass(OneActivity.this,MainActivity.class);  
70.                     OneActivity.this.startActivity(intents);  
71.                 //  OneActivity.this.finish();   
72.                     break;  
73.             }  
74.             super.handleMessage(msg);  
75.         };  
76.     };  
77.       
78. }  

package cn.djy.activity;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;

/**
 * 开机动画
 * @author Administrator
 *
 */
public class OneActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.one);
		
		boolean flag=this.isFirstEnter(getApplicationContext(), this.getClass().getName());
		if(flag)
			mHandler.sendEmptyMessageDelayed(SWITCH_GUIDACTIVITY,4000);
		else
			mHandler.sendEmptyMessageDelayed(SWITCH_TWOACTIVITY, 4000);
		
	}

	//***********************************************************************
	//判断应用是否初次加载，读取SharedPreferences 的字段
	//***********************************************************************
	private static final String SHAREDPREFERENCES_NAME="yang";
	private static final String KEY_GUIDE_ACTIVITY="Open";
	/**
	 * mResultStr.equalsIgnoreCase("false") 返回FALSE
	 * TRUE 则为空值
	 * @param context
	 * @param className
	 * @return boolean
	 */
	private boolean isFirstEnter(Context context,String className){
		if(context==null || className ==null || "".equalsIgnoreCase(className)) return false;
		String mResultStr=context.getSharedPreferences(SHAREDPREFERENCES_NAME,Context.MODE_WORLD_READABLE).getString(KEY_GUIDE_ACTIVITY, "");
		if(mResultStr.equalsIgnoreCase("false"))
			return false;
		else
			return true;
	}
	
	
	//****************************************
	//Handler:跳转至不同页面
	//****************************************
	private final static int SWITCH_TWOACTIVITY=1000; //主页
	
	private final static int SWITCH_GUIDACTIVITY=1001; //滑动手势
	private Handler mHandler=new Handler(){
		public void handleMessage(android.os.Message msg) {
			switch (msg.what) {
			case SWITCH_TWOACTIVITY:
					Intent intent=new Intent();
					intent.setClass(OneActivity.this,TwoActivity.class);
					OneActivity.this.startActivity(intent);
				//	OneActivity.this.finish();
				break;
			case SWITCH_GUIDACTIVITY:
					Intent intents=new Intent();
					intents.setClass(OneActivity.this,MainActivity.class);
					OneActivity.this.startActivity(intents);
				//	OneActivity.this.finish();
					break;
			}
			super.handleMessage(msg);
		};
	};
	
}

MainActivity的代码如下:

[java] view plain copy print ?

1. package cn.djy.activity;  
2.   
3. import java.util.ArrayList;  
4.   
5. import android.app.Activity;  
6. import android.content.Intent;  
7. import android.content.SharedPreferences;  
8. import android.os.Bundle;  
9. import android.os.Parcelable;  
10. import android.support.v4.view.PagerAdapter;  
11. import android.support.v4.view.ViewPager;  
12. import android.support.v4.view.ViewPager.OnPageChangeListener;  
13. import android.view.LayoutInflater;  
14. import android.view.View;  
15. import android.view.View.OnClickListener;  
16. import android.view.ViewGroup;  
17. import android.view.ViewGroup.LayoutParams;  
18. import android.widget.Button;  
19. import android.widget.ImageView;  
20. import android.widget.TwoLineListItem;  
21. /** 
22.  * 实现 
23.  * @author dujinyang 
24.  * 
25.  */  
26. public class MainActivity extends Activity {  
27.       
28.     private ViewPager _viewpager;  
29.       
30.     /** 
31.      * 分页显示的View数组 
32.      */  
33.     private ArrayList<View> _pagerlist;  
34.     private ImageView image;  
35.       
36.     /** 
37.      * 小圆点的图片 放进数组 
38.      */  
39.     private ImageView[] _imageViews;  
40.       
41.     //包裹滑动的图片Linearlayout   
42.     private ViewGroup _group;  
43.       
44.     //包裹小圆点的Linearlayout   
45.     private ViewGroup _viewPonits;  
46.       
47.       
48.       
49.       
50.     /** Called when the activity is first created. */  
51.     @Override  
52.     public void onCreate(Bundle savedInstanceState) {  
53.         super.onCreate(savedInstanceState);  
54.         setContentView(R.layout.start);  
55.           
56.         LayoutInflater inflater=getLayoutInflater();  
57.         _pagerlist =new ArrayList<View>();  
58.         _pagerlist.add(inflater.inflate(R.layout.viewpager_page1,null));  
59.         _pagerlist.add(inflater.inflate(R.layout.viewpager_page2,null));  
60.           
61.         //创建Imageviews数组，大小是要显示的图片数量   
62.         _imageViews =new ImageView[_pagerlist.size()];  
63.           
64.           
65.           
66. //        ViewGroup    
67.         _group =(ViewGroup) inflater.inflate(R.layout.start, null);//加载MAIN.XML   
68.           
69.         _viewPonits=(ViewGroup) _group.findViewById(R.id.icon_circle);//加载小圆点的图片   
70.           
71.         _viewpager =(ViewPager) _group.findViewById(R.id.guidePages);//android.support.v4.view.ViewPager   
72.           
73.           
74.         //添加小圆点的图片   
75.         for (int i = 0; i < _imageViews.length; i++) {  
76.              image= new ImageView(this);  
77.              //设置小圆点的imageview的参数   
78.              image.setLayoutParams(new LayoutParams(20,20));//宽高均为20   
79.              image.setPadding(20, 0, 20, 0);  
80.              _imageViews[i]=image;  
81.                
82.              //第一张是选中状态   
83.              if(i==0){  
84.                  _imageViews[i].setBackgroundResource(R.drawable.a2a);  
85.              }else{  
86.                  _imageViews[i].setBackgroundResource(R.drawable.a1a);  
87.              }  
88.              _viewPonits.addView(_imageViews[i]);  
89.         }  
90.         //显示视图   
91.         setContentView(_group);  
92.         _viewpager.setAdapter(new GuidePageAdapter());  
93.         _viewpager.setOnPageChangeListener(new GuidePageChangeListener());  
94.     }  
95.       
96.       
97.     void setGuided(){  
98.         SharedPreferences shared=getSharedPreferences("yang",0);  
99.         SharedPreferences.Editor editor=shared.edit();  
100.         editor.putString("Open", "false");  
101.         editor.commit();  
102.     }  
103.       
104.     class GuidePageAdapter extends PagerAdapter{  
105.   
106.         @Override  
107.         public int getCount() {  
108.             return _pagerlist.size();  
109.         }  
110.           
111.         //initalization position page   
112.         @Override  
113.         public Object instantiateItem(View container, int position) {  
114.             ((ViewPager)container).addView(_pagerlist.get(position));  
115.             if(position==1){  
116.                 Button bt=(Button) container.findViewById(R.id.bt_close);  
117.                 bt.setOnClickListener(new OnClickListener() {  
118.                     @Override  
119.                     public void onClick(View v) {  
120.                         //设置已经引导   
121.                         setGuided();  
122.                         //Intent    
123.                         Intent intent=new Intent();  
124.                         intent.setClass(MainActivity.this,TwoActivity.class );  
125.                         MainActivity.this.startActivity(intent);  
126.                         MainActivity.this.finish();  
127.                     }  
128.                 });  
129.                   
130.             }  
131.             return _pagerlist.get(position);  
132.         }  
133.           
134.           
135.         //判断是否由对象生成页面   
136.         @Override  
137.         public boolean isViewFromObject(View view, Object obj) {  
138.             return view==obj;  
139.         }  
140.           
141.         //销毁页面的位置   
142.         @Override  
143.         public void destroyItem(View container, int position, Object object) {  
144.             ((ViewPager)container).removeView(_pagerlist.get(position));  
145.         }  
146.           
147.           
148.         @Override  
149.         public void finishUpdate(View container) {  
150.             //finish   
151.         }  
152.           
153.         @Override  
154.         public void startUpdate(View container) {  
155.             //start   
156.         }  
157.           
158.         @Override  
159.         public int getItemPosition(Object object) {  
160.             //getItemPosition   
161.             return super.getItemPosition(object);  
162.         }  
163.           
164.           
165.         @Override  
166.         public void restoreState(Parcelable state, ClassLoader loader) {  
167.             super.restoreState(state, loader);  
168.             //restore   
169.         }  
170.           
171.         @Override  
172.         public Parcelable saveState() {  
173.             return super.saveState();  
174.             //save   
175.         }  
176.     }  
177.       
178.     class GuidePageChangeListener implements OnPageChangeListener{  
179.   
180.         @Override  
181.         public void onPageScrollStateChanged(int arg0) {  
182.               
183.         }  
184.   
185.         @Override  
186.         public void onPageScrolled(int arg0, float arg1, int arg2) {  
187.               
188.         }  
189.   
190.         @Override  
191.         public void onPageSelected(int position) {  
192.             for (int i = 0; i < _imageViews.length; i++) {  
193.                     _imageViews[position].setBackgroundResource(R.drawable.a2a);  
194.                     if(position!=i)  
195.                         _imageViews[i].setBackgroundResource(R.drawable.a1a);  
196.                       
197.             }  
198.         }  
199.           
200.     }  
201. }  

package cn.djy.activity;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TwoLineListItem;
/**
 * 实现
 * @author dujinyang
 *
 */
public class MainActivity extends Activity {
	
	private ViewPager _viewpager;
	
	/**
	 * 分页显示的View数组
	 */
	private ArrayList<View> _pagerlist;
	private ImageView image;
	
	/**
	 * 小圆点的图片 放进数组
	 */
	private ImageView[] _imageViews;
	
	//包裹滑动的图片Linearlayout
	private ViewGroup _group;
	
	//包裹小圆点的Linearlayout
	private ViewGroup _viewPonits;
	
	
	
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.start);
        
        LayoutInflater inflater=getLayoutInflater();
        _pagerlist =new ArrayList<View>();
        _pagerlist.add(inflater.inflate(R.layout.viewpager_page1,null));
        _pagerlist.add(inflater.inflate(R.layout.viewpager_page2,null));
        
        //创建Imageviews数组，大小是要显示的图片数量
        _imageViews =new ImageView[_pagerlist.size()];
        
        
        
//        ViewGroup 
        _group =(ViewGroup) inflater.inflate(R.layout.start, null);//加载MAIN.XML
        
        _viewPonits=(ViewGroup) _group.findViewById(R.id.icon_circle);//加载小圆点的图片
        
        _viewpager =(ViewPager) _group.findViewById(R.id.guidePages);//android.support.v4.view.ViewPager
        
        
        //添加小圆点的图片
        for (int i = 0; i < _imageViews.length; i++) {
			 image= new ImageView(this);
			 //设置小圆点的imageview的参数
			 image.setLayoutParams(new LayoutParams(20,20));//宽高均为20
			 image.setPadding(20, 0, 20, 0);
			 _imageViews[i]=image;
			 
			 //第一张是选中状态
			 if(i==0){
				 _imageViews[i].setBackgroundResource(R.drawable.a2a);
			 }else{
				 _imageViews[i].setBackgroundResource(R.drawable.a1a);
			 }
			 _viewPonits.addView(_imageViews[i]);
		}
        //显示视图
        setContentView(_group);
        _viewpager.setAdapter(new GuidePageAdapter());
        _viewpager.setOnPageChangeListener(new GuidePageChangeListener());
    }
    
    
    void setGuided(){
    	SharedPreferences shared=getSharedPreferences("yang",0);
    	SharedPreferences.Editor editor=shared.edit();
    	editor.putString("Open", "false");
    	editor.commit();
    }
    
    class GuidePageAdapter extends PagerAdapter{

		@Override
		public int getCount() {
			return _pagerlist.size();
		}
		
		//initalization position page
		@Override
		public Object instantiateItem(View container, int position) {
			((ViewPager)container).addView(_pagerlist.get(position));
			if(position==1){
				Button bt=(Button) container.findViewById(R.id.bt_close);
				bt.setOnClickListener(new OnClickListener() {
					@Override
					public void onClick(View v) {
						//设置已经引导
						setGuided();
						//Intent 
						Intent intent=new Intent();
						intent.setClass(MainActivity.this,TwoActivity.class );
						MainActivity.this.startActivity(intent);
						MainActivity.this.finish();
					}
				});
				
			}
			return _pagerlist.get(position);
		}
		
		
		//判断是否由对象生成页面
		@Override
		public boolean isViewFromObject(View view, Object obj) {
			return view==obj;
		}
    	
		//销毁页面的位置
		@Override
		public void destroyItem(View container, int position, Object object) {
			((ViewPager)container).removeView(_pagerlist.get(position));
		}
		
		
		@Override
		public void finishUpdate(View container) {
			//finish
		}
		
		@Override
		public void startUpdate(View container) {
			//start
		}
		
		@Override
		public int getItemPosition(Object object) {
			//getItemPosition
			return super.getItemPosition(object);
		}
		
		
		@Override
		public void restoreState(Parcelable state, ClassLoader loader) {
			super.restoreState(state, loader);
			//restore
		}
		
		@Override
		public Parcelable saveState() {
			return super.saveState();
			//save
		}
    }
    
    class GuidePageChangeListener implements OnPageChangeListener{

		@Override
		public void onPageScrollStateChanged(int arg0) {
			
		}

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

		@Override
		public void onPageSelected(int position) {
			for (int i = 0; i < _imageViews.length; i++) {
					_imageViews[position].setBackgroundResource(R.drawable.a2a);
					if(position!=i)
						_imageViews[i].setBackgroundResource(R.drawable.a1a);
					
			}
		}
    	
    }
}

最后是TWOActivity：这个Activity是显示的内容。

[java] view plain copy print ?

1. package cn.djy.activity;  
2.   
3. import android.app.Activity;  
4. import android.os.Bundle;  
5.   
6. public class TwoActivity extends Activity{  
7.       
8.       
9.     @Override  
10.     protected void onCreate(Bundle savedInstanceState) {  
11.         super.onCreate(savedInstanceState);  
12.         setContentView(R.layout.end);  
13.     }  
14.   
15. }  

package cn.djy.activity;

import android.app.Activity;
import android.os.Bundle;

public class TwoActivity extends Activity{
	
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.end);
	}

}

主要代码完成。

里面涉及的drawable图片是小圆点图片。

下面贴出XML的。

start.xml

 

[css] view plain copy print ?

1. <?xml version="1.0" encoding="utf-8"?>  
2. <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     android:orientation="vertical"  
4.     android:layout_width="fill_parent"  
5.     android:layout_height="fill_parent"  
6.     >  
7.      <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/linear_viewpager">  
8.        
9.         <android.support.v4.view.ViewPager   android:id="@+id/guidePages" android:layout_width="fill_parent"  android:layout_height="wrap_content"/>  
10.        
11.      </LinearLayout>  
12.        
13.        
14.        
15.      <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/linear_circle">  
16.            
17.          <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" >  
18.                 <LinearLayout android:id="@+id/icon_circle"   
19.                               android:layout_width="fill_parent"   
20.                               android:layout_height="wrap_content"   
21.                               android:layout_marginBottom="40dip"   
22.                               android:layout_alignParentBottom="true"   
23.                               android:gravity="center_vertical"  
24.                               android:orientation="horizontal"/>  
25.          </RelativeLayout>  
26.            
27.      </LinearLayout>  
28.        
29.        
30.        
31.        
32. </FrameLayout>  

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
 	 <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/linear_viewpager">
 	 
 	 	<android.support.v4.view.ViewPager 	android:id="@+id/guidePages" android:layout_width="fill_parent"  android:layout_height="wrap_content"/>
 	 
 	 </LinearLayout>
 	 
 	 
 	 
 	 <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/linear_circle">
 	 	 
 	 	 <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" >
 	 	 		<LinearLayout android:id="@+id/icon_circle" 
 	 	 					  android:layout_width="fill_parent" 
 	 	 					  android:layout_height="wrap_content" 
 	 	 					  android:layout_marginBottom="40dip" 
 	 	 					  android:layout_alignParentBottom="true" 
 	 	 					  android:gravity="center_vertical"
 	 	 					  android:orientation="horizontal"/>
 	 	 </RelativeLayout>
 	 	 
 	 </LinearLayout>
 	 
 	 
 	 
 	 
</FrameLayout>

其实是用Group把子项包起来作为显示：

那子项为：

viewpager_page1.xml

[css] view plain copy print ?

1. <LinearLayout  
2.   xmlns:android="http://schemas.android.com/apk/res/android"  
3.   android:layout_width="match_parent"  
4.   android:layout_height="match_parent"  android:orientation="vertical">  
5.    <TextView android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" android:text="adfasfasfweqwwfqw'"  
6.    />  
7.  </LinearLayout>  

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"  android:orientation="vertical">
   <TextView android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" android:text="adfasfasfweqwwfqw'"
   />
 </LinearLayout>

viewpager_page2.xml

[css] view plain copy print ?

1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout  
3.   xmlns:android="http://schemas.android.com/apk/res/android"  
4.   android:layout_width="match_parent"  
5.   android:layout_height="match_parent"  
6.   android:orientation="vertical"   
7.   android:gravity="center">  
8.     
9.   <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="pages222222222222222222"></TextView>  
10.     
11.   <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="asdfi14234124" android:id="@+id/bt_close"></Button>  
12. </LinearLayout>  

<?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"
  android:orientation="vertical" 
  android:gravity="center">
  
  <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="pages222222222222222222"></TextView>
  
  <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="asdfi14234124" android:id="@+id/bt_close"></Button>
</LinearLayout>

总的代码完成。

希望大家互相学习 互相共享。