关闭 x
IT技术网
    技 采 号
    ITJS.cn - 技术改变世界
    • 实用工具
    • 菜鸟教程
    IT采购网 中国存储网 科技号 CIO智库

    IT技术网

    IT采购网
    • 首页
    • 行业资讯
    • 系统运维
      • 操作系统
        • Windows
        • Linux
        • Mac OS
      • 数据库
        • MySQL
        • Oracle
        • SQL Server
      • 网站建设
    • 人工智能
    • 半导体芯片
    • 笔记本电脑
    • 智能手机
    • 智能汽车
    • 编程语言
    IT技术网 - ITJS.CN
    首页 » 安卓开发 »Android 引导界面的实现过程

    Android 引导界面的实现过程

    2015-03-15 00:00:00 出处:tornadomeet
    分享

    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。

    /**
     * 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:

    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); 
            }; 
        }; 
    
    }
    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:

    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); 
    
                } 
            } 
    
        } 
    }
    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。

    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); 
        } 
    
    }
    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

    < 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>
    < 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

    <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>
    <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

    < 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>
    < 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>
    上一篇返回首页 下一篇

    声明: 此文观点不代表本站立场;转载务必保留本文链接;版权疑问请联系我们。

    别人在看

    正版 Windows 11产品密钥怎么查找/查看?

    还有3个月,微软将停止 Windows 10 的更新

    Windows 10 终止支持后,企业为何要立即升级?

    Windows 10 将于 2025年10 月终止技术支持,建议迁移到 Windows 11

    Windows 12 发布推迟,微软正全力筹备Windows 11 25H2更新

    Linux 退出 mail的命令是什么

    Linux 提醒 No space left on device,但我的空间看起来还有不少空余呢

    hiberfil.sys文件可以删除吗?了解该文件并手把手教你删除C盘的hiberfil.sys文件

    Window 10和 Windows 11哪个好?答案是:看你自己的需求

    盗版软件成公司里的“隐形炸弹”?老板们的“法务噩梦” 有救了!

    IT头条

    公安部:我国在售汽车搭载的“智驾”系统都不具备“自动驾驶”功能

    02:03

    液冷服务器概念股走强,博汇、润泽等液冷概念股票大涨

    01:17

    亚太地区的 AI 驱动型医疗保健:2025 年及以后的下一步是什么?

    16:30

    智能手机市场风云:iPhone领跑销量榜,华为缺席引争议

    15:43

    大数据算法和“老师傅”经验叠加 智慧化收储粮食尽显“科技范”

    15:17

    技术热点

    SQL汉字转换为拼音的函数

    windows 7系统无法运行Photoshop CS3的解决方法

    巧用MySQL加密函数对Web网站敏感数据进行保护

    MySQL基础知识简介

    Windows7和WinXP下如何实现不输密码自动登录系统的设置方法介绍

    windows 7系统ip地址冲突怎么办?windows 7系统IP地址冲突问题的

      友情链接:
    • IT采购网
    • 科技号
    • 中国存储网
    • 存储网
    • 半导体联盟
    • 医疗软件网
    • 软件中国
    • ITbrand
    • 采购中国
    • CIO智库
    • 考研题库
    • 法务网
    • AI工具网
    • 电子芯片网
    • 安全库
    • 隐私保护
    • 版权申明
    • 联系我们
    IT技术网 版权所有 © 2020-2025,京ICP备14047533号-20,Power by OK设计网

    在上方输入关键词后,回车键 开始搜索。Esc键 取消该搜索窗口。