应用新功能和应用加载页显示框架

功能实现源码package com.xhm.meishi;import java.util.ArrayList;import android.content.Context;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Handler;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.RelativeLayout;public class Loading_Pager implements OnPageChangeListener, OnClickListener {    /**     * 以下变量需要自定义初始化     */    // 上下文    private Context mContext;    // viewpager中圆点资源    private int mPageIndicatorNormal;    private int mPageIndicatorFocused;    // viewpager图片资源数组资源以及数量    private int mViewPagers[];    // 加载页图片资源    private int mLoadingPager;    /**     * 以下变量是类的成员变量     */    // handler    private Handler mHandler;    // viewpager数量    private int mViewPagerSize;    // 存储信息    private SharedPreferences mSharedPreferences;    // 放圆点和功能展示页的控件    private RelativeLayout mRelativeLayout;    // 用户保存圆点的控件    private LinearLayout mLinearLayout;    // 添加功能展示页的控件    private ViewPager mViewPager;    // 定义圆点的位置    private RelativeLayout.LayoutParams mPointPlace;    // 标识是否是第一个登录    private boolean mIsFirstLogin;    // 加载页显示时长    private long mLoadingPagerTime;    // 圆点控件的大小    private int mPointWidth, mPointHeight;    // 圆点的左右间距    private int mPointLeftMargin, mPointRightMargin;    // 是否第一次登录的标识    private static final int FIRSTLOGIN = 1;    // SharedPreferences中登录标识    private static final String ISFIRSTLOGIN = "firstlogin";    // 应用SharedPreferences名字标识    private static final String PREFERENCESNAME = "com_xhm_user_info";    // handler发送点击标识    public static final int HANDLERID_CLICK = 0x1111;    // handler发送倒计时标识    public static final int HANDLERID_TIME = 0x1110;    public long getmLoadingPagerTime() {        return mLoadingPagerTime;    }    public void setmLoadingPagerTime(long mLoadingPagerTime) {        this.mLoadingPagerTime = mLoadingPagerTime;    }    public RelativeLayout.LayoutParams getmPointPlace() {        return mPointPlace;    }    public void setmPointPlace(RelativeLayout.LayoutParams mPointPlace) {        this.mPointPlace = mPointPlace;    }    public int getmPointWidth() {        return mPointWidth;    }    public void setmPointWidth(int mPointWidth) {        this.mPointWidth = mPointWidth;    }    public int getmPointHeight() {        return mPointHeight;    }    public void setmPointHeight(int mPointHeight) {        this.mPointHeight = mPointHeight;    }    public int getmPointLeftMargin() {        return mPointLeftMargin;    }    public void setmPointLeftMargin(int mPointLeftMargin) {        this.mPointLeftMargin = mPointLeftMargin;    }    public int getmPointRightMargin() {        return mPointRightMargin;    }    public void setmPointRightMargin(int mPointRightMargin) {        this.mPointRightMargin = mPointRightMargin;    }    /**     *      * @param context     *            上下文     * @param ViewPagerRes     *            功能展示页资源数组：R.drawable.xx     * @param LoadingPager     *            应用加载页：R.drawable.xx     * @param PageIndicatorNormal     *            标识下边的圆圈：没选择状态     * @param PageIndicatorFocused     *            标识下边的圆圈：选择状态     */    public Loading_Pager(Context context, int ViewPagerRes[], int LoadingPager,            int PageIndicatorNormal, int PageIndicatorFocused, Handler handler,            long time) {        // TODO Auto-generated constructor stub        initVar(context, ViewPagerRes, LoadingPager, PageIndicatorNormal,                PageIndicatorFocused, handler, time);    }    /**     * 初始化成员变量     *      * @param sharedPreferencesName     */    private void initVar(Context context, int ViewPagerRes[], int LoadingPager,            int PageIndicatorNormal, int PageIndicatorFocused, Handler handler,            long time) {        this.mContext = context;        this.mViewPagers = ViewPagerRes;        this.mViewPagerSize = mViewPagers.length;        this.mLoadingPager = LoadingPager;        this.mPageIndicatorNormal = PageIndicatorNormal;        this.mPageIndicatorFocused = PageIndicatorFocused;        this.mPointHeight = 15;        this.mPointWidth = 15;        this.mPointLeftMargin = 5;        this.mPointRightMargin = 5;        this.mLoadingPagerTime = time;        this.mHandler = handler;        // 定义mLinearLayout的位置        mPointPlace = new RelativeLayout.LayoutParams(                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);        mPointPlace.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);        mPointPlace.addRule(RelativeLayout.CENTER_HORIZONTAL,                RelativeLayout.TRUE);        mPointPlace.bottomMargin = 40;        mSharedPreferences = mContext.getSharedPreferences(PREFERENCESNAME, 1);        mIsFirstLogin = FIRSTLOGIN == mSharedPreferences                .getInt(ISFIRSTLOGIN, 1) ? true : false;        if (mIsFirstLogin) {            Editor mEditor = mSharedPreferences.edit();            mEditor.putInt(ISFIRSTLOGIN, 2);            mEditor.commit();        }    }    /**     * 初始化View     */    public View getView() {        mLinearLayout = new LinearLayout(mContext);        initLinearLayout(mLinearLayout);        mViewPager = new ViewPager(mContext);        initViewPager(mViewPager);        mRelativeLayout = new RelativeLayout(mContext);        initRelativeLayout(mRelativeLayout, mViewPager, mLinearLayout,                mPointPlace);        if (!mIsFirstLogin) {            mHandler.postDelayed(new Runnable() {                public void run() {                    mHandler.sendEmptyMessage(HANDLERID_TIME);                }            }, mLoadingPagerTime);        }        return mRelativeLayout;    }    /**     * 初始化RelativeLayout背景布局     *      * @param relativeLayout     */    private void initRelativeLayout(RelativeLayout relativeLayout,            ViewPager viewpager, LinearLayout linearlayout,            LayoutParams pointPlace) {        relativeLayout.setLayoutParams(new LayoutParams(                LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));        relativeLayout.addView(viewpager);        relativeLayout.addView(linearlayout, pointPlace);    }    /**     * 初始化viewpager     *      * @param viewpager     */    private void initViewPager(ViewPager viewpager) {        LayoutParams params_viewpager = new LayoutParams(                LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);        viewpager.setLayoutParams(params_viewpager);        ImageView imageView_viewpager = null;        ArrayList<View> pagers = new ArrayList<View>();        int viewpagersize = mIsFirstLogin ? mViewPagerSize : 1;        for (int i = 0; i < viewpagersize; i++) {            // 展示页添加            imageView_viewpager = new ImageView(mContext);            imageView_viewpager.setLayoutParams(params_viewpager);            imageView_viewpager                    .setBackgroundResource(mIsFirstLogin ? mViewPagers[i]                            : mLoadingPager);            pagers.add(imageView_viewpager);        }        pagers.get(viewpagersize - 1).setOnClickListener(Loading_Pager.this);        viewpager.setAdapter(new ViewPagerAdapter(pagers));        viewpager.setOnPageChangeListener(this);    }    /**     * 初始化圆点布局     *      * @param linearlayout     */    private void initLinearLayout(LinearLayout linearlayout) {        ImageView imageView_point = null;        linearlayout.setVisibility(mIsFirstLogin ? View.VISIBLE : View.GONE);        LinearLayout.LayoutParams params_point = new LinearLayout.LayoutParams(                mPointWidth, mPointHeight);        params_point.leftMargin = mPointLeftMargin;        params_point.rightMargin = mPointRightMargin;        for (int i = 0; i < mViewPagerSize; i++) {            // 圆点添加            imageView_point = new ImageView(mContext);            imageView_point.setBackgroundResource(mPageIndicatorNormal);            linearlayout.addView(imageView_point, params_point);        }        linearlayout.getChildAt(0).setBackgroundResource(mPageIndicatorFocused);    }    /**     * viewpager适配器实现PagerAdapter至少实现一下四个方法     *      * instantiateItem(ViewGroup, int)：初始化界面     *      * destroyItem(ViewGroup, int, Object)：销毁viewitem     *      * getCount()：获得ViewPager的数量     *      * isViewFromObject(View, Object)     */    class ViewPagerAdapter extends PagerAdapter {        private ArrayList<View> mViews = null;        public ViewPagerAdapter(ArrayList<View> views) {            // TODO Auto-generated constructor stub            this.mViews = views;        }        // 销毁position位置的界面        @Override        public void destroyItem(View v, int position, Object arg2) {            // TODO Auto-generated method stub            ((ViewPager) v).removeView(mViews.get(position));        }        @Override        public Object instantiateItem(ViewGroup container, int position) {            // TODO Auto-generated method stub            container.addView(mViews.get(position));            return mViews.get(position);        }        @Override        public int getCount() {            // TODO Auto-generated method stub            return mViews.size();        }        @Override        public boolean isViewFromObject(View arg0, Object arg1) {            // TODO Auto-generated method stub            return arg0 == arg1;        }    }    @Override    public void onPageScrollStateChanged(int arg0) {        // TODO Auto-generated method stub    }    @Override    public void onPageScrolled(int arg0, float arg1, int arg2) {        // TODO Auto-generated method stub    }    @Override    public void onPageSelected(int arg0) {        // TODO Auto-generated method stub        for (int i = 0; i < mViewPagerSize; i++) {            if (i == arg0) {                mLinearLayout.getChildAt(i).setBackgroundResource(                        mPageIndicatorFocused);            } else {                mLinearLayout.getChildAt(i).setBackgroundResource(                        mPageIndicatorNormal);            }        }    }    @Override    public void onClick(View v) {        mHandler.sendEmptyMessage(HANDLERID_CLICK);    }}