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android 笔记之------Activity：如何进行屏幕切换

来源：互联网 发布：内裤怎么晾晒 知乎 编辑：程序博客网 时间：2024/06/06 00:06

   开始学Android的都知道，理解Activity可以这样：对于每一个Activity可以看做是一个界面，界面之间的切换也就是Activity之间的切换



1首先定义一个main.xml

                                    

      <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent" >    <tjuci.dl.ui.MyScrollLayout        android:layout_width="fill_parent"        android:layout_height="fill_parent"         android:visibility="visible">        <include layout="@layout/page1" />        <include layout="@layout/page2" />
<?xml version="1.0" encoding="utf-8"?>
再来一个page.xml<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/page1"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:background="@drawable/page1_bg" >    <TextView        android:id="@+id/page1_title"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:background="@drawable/page1_title_bg"        android:paddingLeft="40dp"        android:paddingRight="40dp"        android:text="@string/page1_title"        android:textColor="#ffffff"        android:textSize="15dp" />    <TextView        android:id="@+id/page1_title_1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/page1_title"        android:layout_centerHorizontal="true"        android:text="@string/page1_title_1"        android:textColor="#000000"        android:textSize="10dp" />    <ImageView        android:id="@+id/page1_image"        android:layout_width="150dp"        android:layout_height="150dp"        android:layout_below="@+id/page1_title_1"        android:layout_centerHorizontal="true"        android:paddingTop="2dp"        android:src="@drawable/page1_image" />    <RelativeLayout        android:id="@+id/page1_login"        android:layout_width="fill_parent"        android:layout_height="110dp"        android:layout_centerHorizontal="true"        android:layout_below="@+id/page1_image"        android:gravity="center_horizontal"        android:orientation="vertical" >         <EditText            android:id="@+id/page1_login_user_edit"            android:layout_width="280dp"            android:layout_height="wrap_content"            android:paddingTop="16dp"            android:paddingLeft="100dp"            android:paddingRight="80dp"            android:paddingBottom="17dp"            android:saveEnabled="true"            android:singleLine="true"            android:background="@drawable/page1_login_input"            style="@style/page1_text"            android:hint="@string/page1_login_userText_hint" />        <TextView            android:id="@+id/page1_login_user_text"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:paddingTop="16dp"            android:paddingLeft="20dp"            style="@style/page1_text"            android:text="@string/page1_login_userText" />         <TextView              android:layout_width="37dp"             android:layout_height="37dp"             android:paddingTop="16dp"             android:paddingRight="10dp"             android:textStyle="bold"             android:textSize="17sp"             android:layout_alignRight="@+id/page1_login_user_edit"             android:text="@string/page1_login_right_image"             />        <EditText            android:id="@+id/page1_login_passwd_edit"            android:layout_width="280dp"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:paddingTop="16dp"            android:paddingLeft="180dp"            android:paddingRight="80dp"            android:paddingBottom="15dp"            android:layout_marginBottom="11dp"            android:saveEnabled="true"            android:singleLine="true"            android:background="@drawable/page1_login_input"            style="@style/page1_text"            android:password="true"/>        <TextView            android:id="@+id/page1_login_passwd_text"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_below="@+id/page1_login_user_text"            android:paddingTop="28dp"            android:paddingLeft="20dp"            style="@style/page1_text"            android:text="@string/page1_login_passwdText" />    </RelativeLayout><TableLayout     android:id="@+id/page1_tableLayout"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_below="@+id/page1_login"    android:gravity="center_horizontal">    <TableRow >        <Button             android:layout_width="wrap_content"            android:layout_height="40dp"            android:paddingLeft="30dp"            android:layout_marginLeft="20dp"            android:paddingRight="40dp"            style="@style/page1_text"            android:text="@string/page1_network_button"/>        <Button             android:layout_width="wrap_content"            android:layout_height="40dp"            android:paddingLeft="30dp"            android:paddingRight="30dp"            android:layout_marginLeft="20dp"            style="@style/page1_text"            android:text="@string/page1_login_button1"/>    </TableRow></TableLayout><RelativeLayout     android:id="@+id/checkbox_relativeLayout"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:layout_below="@+id/page1_tableLayout"    >    <CheckBox         android:id="@+id/page1_checbox1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentTop="true"        android:layout_marginLeft="50dp"        style="@style/page1_checbox_text"        android:button="@drawable/page1_checbox_selector"        android:text="@string/page1_checbox_text1"/>     <CheckBox         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/page1_checbox1"        android:layout_marginLeft="50dp"        style="@style/page1_checbox_text"        android:button="@drawable/page1_checbox_selector"        android:text="@string/page1_checbox_text2"/></RelativeLayout><RelativeLayout     android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:layout_alignParentBottom="true"    >     <TextView            android:id="@+id/page1_text1"            android:layout_width="wrap_content"            android:layout_height="wrap_content"           android:layout_centerHorizontal="true"           android:textColor="#000000"            android:text="@string/page1_tex1" />     <TextView            android:id="@+id/page1_text2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"           android:layout_centerHorizontal="true"           android:paddingLeft="60dp"           android:paddingBottom="10dp"           android:layout_alignLeft="@+id/page1_text1"           android:textColor="#ff0000"            android:text="@string/page1_tex2" /></RelativeLayout></RelativeLayout>

<include layout="@layout/page3" /> </tjuci.dl.ui.MyScrollLayout></LinearLayout>


page2.Xml
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/page1"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:background="#ffffff" >    <TextView        android:id="@+id/page2_title"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:background="@drawable/page1_title_bg"        android:paddingLeft="40dp"        android:paddingRight="40dp"        android:text="@string/page1_title"        android:textColor="#ffffff"        android:textSize="15dp" />    <TextView        android:id="@+id/page2_title_1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/page2_title"        android:layout_centerHorizontal="true"        android:text="@string/page1_title_1"        android:textColor="#000000"        android:textSize="10dp" />    <ImageView        android:id="@+id/page2_image"        android:layout_width="fill_parent"        android:layout_height="240dp"        android:layout_below="@+id/page2_title_1"        android:layout_centerHorizontal="true"        android:src="@drawable/page2_image1" />    <RelativeLayout        android:id="@+id/page2_layout"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_below="@+id/page2_image" >        <TextView            android:id="@+id/page2_show_date"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:paddingLeft="10dp"            android:textSize="12sp"            android:text="@string/page2_date"            android:textColor="#000000" />        <LinearLayout            android:id="@+id/page2_images_layout"            android:layout_width="130dp"            android:layout_height="wrap_content"            android:layout_alignParentRight="true"            android:layout_alignRight="@+id/page2_show_date"            android:gravity="right"            android:orientation="horizontal" >            <ImageView                android:layout_width="7dp"                android:layout_height="7dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_image_point_selector" />            <ImageView                android:layout_width="7dp"                android:layout_height="7dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_image_point_selector" />            <ImageView                android:layout_width="7dp"                android:layout_height="7dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_image_point_selector" />            <ImageView                android:layout_width="7dp"                android:layout_height="7dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_image_point_selector" />        </LinearLayout>    </RelativeLayout><LinearLayout     android:id="@+id/page2_main_text_layout"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:orientation="vertical"    android:layout_below="@+id/page2_layout">    <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="18sp"        android:textColor="#000000"        android:text="@string/page2_main_text_line"/>        <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"android:layout_marginLeft="13dp"android:layout_marginRight="13dp"android:layout_marginTop="5dp"android:layout_marginBottom="5dp"        android:textSize="13sp"        android:textColor="#777777"        android:text="@string/page2_main_text"/>        <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="18sp"        android:textColor="#000000"        android:text="@string/page2_main_text_line"/></LinearLayout><LinearLayout     android:id="@+id/page2_bottom_layout"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:orientation="horizontal"    android:gravity="center_horizontal"    android:layout_alignParentBottom="true"    android:layout_marginBottom="14dp">    <Button         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="16sp"        android:textColor="#000000"        android:layout_marginTop="16dp"        android:background="@drawable/page2_bottom_button_bg"        android:text="@string/page2_bottom_button1"/>    <LinearLayout         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        android:gravity="center_vertical">        <TextView                android:layout_width="15dp"                android:layout_height="12dp"                android:layout_marginTop="12dp"                android:gravity="center"                android:text="8"                android:textSize="10sp"                android:textColor="#ffffff"                android:background="@drawable/page2_bottom_button_bg_tip" />        <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="10dp"                android:gravity="bottom"                android:textSize="9sp"                android:text="216"                android:textColor="#777777"                 />    </LinearLayout>        <ImageView                android:layout_width="2dp"                android:layout_height="35dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_bottom_btn_line" />     <Button         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="16sp"        android:textColor="#000000"        android:layout_marginTop="16dp"        android:background="@drawable/page2_bottom_button_bg"        android:text="@string/page2_bottom_button2"/>    <LinearLayout         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        android:gravity="center_vertical">        <TextView                android:layout_width="15dp"                android:layout_height="12dp"                android:layout_marginTop="12dp"                android:gravity="center"                android:text="40"                android:textSize="10sp"                android:textColor="#ffffff"                android:background="@drawable/page2_bottom_button_bg_tip" />        <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="10dp"                android:gravity="bottom"                android:textSize="9sp"                android:text="40"                android:textColor="#777777"                 />    </LinearLayout>        <ImageView                android:layout_width="2dp"                android:layout_height="35dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_bottom_btn_line" />     <Button         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="16sp"        android:textColor="#000000"        android:layout_marginTop="16dp"        android:background="@drawable/page2_bottom_button_bg"        android:text="@string/page2_bottom_button3"/>    <LinearLayout         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        android:gravity="center_vertical">        <TextView                android:layout_width="15dp"                android:layout_height="12dp"                android:layout_marginTop="12dp"                android:gravity="center"                android:text="11"                android:textSize="10sp"                android:textColor="#ffffff"                android:background="@drawable/page2_bottom_button_bg_tip" />        <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="10dp"                android:gravity="bottom"                android:textSize="9sp"                android:text="563"                android:textColor="#777777"                 />    </LinearLayout>        <ImageView                android:layout_width="2dp"                android:layout_height="35dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_bottom_btn_line" />     <Button         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="16sp"        android:textColor="#000000"        android:layout_marginTop="16dp"        android:background="@drawable/page2_bottom_button_bg"        android:text="@string/page2_bottom_button3"/>    <LinearLayout         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        android:gravity="center_vertical">        <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="33dp"                android:textSize="9sp"                android:text="96"                android:textColor="#777777"                 />    </LinearLayout>        <ImageView                android:layout_width="2dp"                android:layout_height="35dp"                android:layout_gravity="center_vertical"                android:layout_margin="5.0dp"                android:background="@drawable/page2_bottom_btn_line" />     <Button         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="16sp"        android:textColor="#000000"        android:layout_marginTop="16dp"        android:background="@drawable/page2_bottom_button_bg"        android:text="@string/page2_bottom_button1"/></LinearLayout></RelativeLayout>

MyScrollLayout.java
package tjuci.dl.ui;import android.content.Context;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.VelocityTracker;import android.view.View;import android.view.ViewGroup;import android.widget.Scroller;/** * 此类主要是横向滑动屏幕的类 *  * @author dl *  */public class MyScrollLayout extends ViewGroup {Scroller scroller;// 滑动控制VelocityTracker velocity;// 速度控制int mCurScreen;// 当前屏幕位置float mLastX;//最近的一点X坐标public static final int SNAP_VELOCITY = 600;public MyScrollLayout(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);init(context);// 初始化变量}public MyScrollLayout(Context context, AttributeSet attrs) {super(context, attrs);init(context);// 初始化变量}public MyScrollLayout(Context context) {super(context);init(context);// 初始化变量}public void init(Context context) {scroller = new Scroller(context);// 创建滑动控制的对象mCurScreen = 0;// 当前屏幕为0}/** * 对子内容大小进行定义 */@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);int childCount = getChildCount();// 得到子组件的数量int width = MeasureSpec.getSize(widthMeasureSpec);for (int i = 0; i < childCount; i++) {View childView = getChildAt(i);// 得到子组件childView.measure(widthMeasureSpec, heightMeasureSpec);// 调用measure为子组件大小赋值}scrollTo(mCurScreen * width, 0);// 初始化滑动位置，使其滑动到第一个界面}/** * 对内容的布局进行定义 */@Overrideprotected void onLayout(boolean changed, int l, int t, int r, int b) {if(changed){int childCount = getChildCount();//得到子组件的数量int childLeft = 0;for(int i = 0; i < childCount; i ++){View childView = getChildAt(i);//得到子组件int width = childView.getMeasuredWidth();//得到子组件的宽度childView.layout(childLeft, 0, childLeft + width, childView.getMeasuredHeight());childLeft += width;}}}@Overridepublic void computeScroll() {//当父组件要求子组件滑动式调用此方法if(scroller.computeScrollOffset()){//当动画没有停止时scrollTo(scroller.getCurrX(), scroller.getCurrY());//如果动画没有停止  那么一直更新子View的值postInvalidate();}}@Overridepublic boolean onTouchEvent(MotionEvent event) {float curX = event.getX();int action = event.getAction();switch (action) {case MotionEvent.ACTION_DOWN://按下操作时if(velocity == null ){velocity = VelocityTracker.obtain();//初始化速度控制velocity.addMovement(event);//将触屏事件交给速度控制}if(!scroller.isFinished()){//还没完成滑动动画  但是已碰到屏幕scroller.abortAnimation();//停止动画}mLastX = curX;break;case MotionEvent.ACTION_MOVE://移动操作时int distance_x = (int)(mLastX - curX);if(IsCanMove(distance_x)){//判断是否能移动if(velocity != null ){velocity.addMovement(event);//将触屏事件交给速度控制}mLastX = curX;scrollBy(distance_x, 0);}break;case MotionEvent.ACTION_UP://抬起操作时int velocityX = 0;            if (velocity != null)            {            velocity.addMovement(event);             velocity.computeCurrentVelocity(1000);              velocityX = (int) velocity.getXVelocity();            }                                                if (velocityX > SNAP_VELOCITY && mCurScreen > 0) {                       // Fling enough to move left                       snapToScreen(mCurScreen - 1);                   } else if (velocityX < -SNAP_VELOCITY                           && mCurScreen < getChildCount() - 1) {                       // Fling enough to move right                       snapToScreen(mCurScreen + 1);                   } else {                       snapToDestination();                   }                                                     if (velocity != null) {                   velocity.recycle();                   velocity = null;                   }                               break;   }return true;//范围true  则说明   已完成操作  不用再扩张操作了} public void snapToDestination() {            final int screenWidth = getWidth();            final int destScreen = (getScrollX()+ screenWidth/2)/screenWidth;            snapToScreen(destScreen);     }   public void snapToScreen(int whichScreen) {            // get the valid layout page            whichScreen = Math.max(0, Math.min(whichScreen, getChildCount()-1));            if (getScrollX() != (whichScreen*getWidth())) {                                final int delta = whichScreen*getWidth()-getScrollX();                        scroller.startScroll(getScrollX(), 0,                         delta, 0, Math.abs(delta)*2);                        mCurScreen = whichScreen;                invalidate();       // Redraw the layout                        }        }    /** * @param distance_x 移动距离 * @return 是否能够移动 */public boolean IsCanMove(int distance_x){//滑动向右滑、如果distance_x小于0 并且 偏移量小于0了 则不能滑动了if(distance_x < 0 && getScrollX() < 0){return false;}//滑动向右滑、如果滑动大于组件0 并且 偏移量大于了所有组件的宽度和、 那么则返回falseif(getScrollX() > (getChildCount() - 1) * getWidth() && distance_x > 0){return false;}return true;}}

ScrollUIActivity.java
package tjuci.dl.ui;import java.util.Timer;import java.util.TimerTask;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.view.animation.AnimationUtils;import android.widget.AbsListView;import android.widget.BaseExpandableListAdapter;import android.widget.ExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;public class ScrollUIActivity extends Activity {// page2的变量LinearLayout images_layout;// page2中images的线性布局ImageView[] images_point;// 存放布局中的所有image点int[] images;// 存放所有图片int mCurImage = 1;// 当前的imageImageView page_image;// 被换的image// page3的变量ExpandableListView expandable;// 对于ExpandableListView的一级目录String[] oneLayer = new String[] { "财务管理", "物资管理", "项目管理", "法律事务管理系统","设备管理", "人力资源" };// 对于ExpandableListView的二级目录String[][] twoLayer = new String[][] {{ "财务管理1", "财务管理2", "财务管理3", "财务管理4", "财务管理5", "财务管理6", "财务管理7" },{ "物资管理1", "物资管理2", "物资管理3", "物资管理4", "物资管理5", "物资管理6", "物资管理7","物资管理8", "物资管理9", "物资管理10", "物资管理11", "物资管理12", }, {}, {},{}, {} };int[] GroupImageId = { R.drawable.page3_image1, R.drawable.page3_image2,R.drawable.page3_image3, R.drawable.page3_image4,R.drawable.page3_image5, R.drawable.page3_image6 };@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.main);page2Event();// 处理page2的事件page3Event();// 处理page3的事件}/** * 处理page3页面的所有事件 */public void page3Event() {// 初始化变量expandable = (ExpandableListView) findViewById(R.id.page3_expandable);expandable.setGroupIndicator(null);// 取消一级图标的箭头ExpandableListAdapter ea = new BaseExpandableListAdapter() {@Overridepublic boolean isChildSelectable(int groupPosition,int childPosition) {// TODO Auto-generated method stubreturn false;}@Overridepublic boolean hasStableIds() {// TODO Auto-generated method stubreturn false;}@Overridepublic View getGroupView(int groupPosition, boolean isExpanded,View convertView, ViewGroup parent) {LinearLayout ll = new LinearLayout(ScrollUIActivity.this);ll.setLayoutParams(new AbsListView.LayoutParams(600,ViewGroup.LayoutParams.WRAP_CONTENT));ll.setPadding(20, 5, 5, 5);ll.setOrientation(LinearLayout.HORIZONTAL);ImageView iv = new ImageView(ScrollUIActivity.this);iv.setImageResource(GroupImageId[groupPosition]);ll.addView(iv);TextView tv = new TextView(ScrollUIActivity.this);tv.setLayoutParams(new AbsListView.LayoutParams(500,AbsListView.LayoutParams.WRAP_CONTENT));tv.setText(oneLayer[groupPosition]);ll.addView(tv);return ll;}@Overridepublic long getGroupId(int groupPosition) {// TODO Auto-generated method stubreturn groupPosition;}@Overridepublic int getGroupCount() {// TODO Auto-generated method stubreturn oneLayer.length;}@Overridepublic Object getGroup(int groupPosition) {// TODO Auto-generated method stubreturn oneLayer[groupPosition];}@Overridepublic int getChildrenCount(int groupPosition) {// TODO Auto-generated method stubreturn twoLayer[groupPosition].length;}@Overridepublic View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {TextView tv = new TextView(ScrollUIActivity.this);tv.setText(twoLayer[groupPosition][childPosition]);return tv;}@Overridepublic long getChildId(int groupPosition, int childPosition) {// TODO Auto-generated method stubreturn childPosition;}@Overridepublic Object getChild(int groupPosition, int childPosition) {// TODO Auto-generated method stubreturn twoLayer[groupPosition][childPosition];}};expandable.setAdapter(ea);}/** * 处理page2页面的所有事件 */public void page2Event() {// page2中变量的定义 与 赋值images_layout = (LinearLayout) findViewById(R.id.page2_images_layout);images_point = new ImageView[images_layout.getChildCount()];page_image = (ImageView) findViewById(R.id.page2_image);images = new int[] { R.drawable.page2_image1, R.drawable.page2_image2,R.drawable.page2_image3, R.drawable.page2_image4 };setScrollerImagePoint();// 初始化 page2中的 滚动点final Handler h = new Handler() {@Overridepublic void handleMessage(Message msg) {if (msg.what == 0x123) {if (mCurImage > images.length - 1) {// 如果大于图片的数目 那么重新开始加载mCurImage = 0;}setScrollerImagePoint();page_image.setAnimation(AnimationUtils.loadAnimation(ScrollUIActivity.this, android.R.anim.fade_out));page_image.setImageResource(images[mCurImage]);page_image.setAnimation(AnimationUtils.loadAnimation(ScrollUIActivity.this, android.R.anim.fade_in));mCurImage++;}}};new Timer().schedule(new TimerTask() {@Overridepublic void run() {while (true) {try {Thread.sleep(2000);} catch (InterruptedException e) {e.printStackTrace();}h.sendEmptyMessage(0x123);}}}, 0, 500);}/* * 为page2设置滚动点的效果 */public void setScrollerImagePoint() {for (int i = 0; i < images_layout.getChildCount(); i++) {images_point[i] = (ImageView) images_layout.getChildAt(i);images_point[i].setEnabled(false);}images_point[mCurImage].setEnabled(true);// 设置可用的点 图片}}



                 
                                             
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 内裤怎么晾晒 知乎
    		内裤怎么晾晒 知乎



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