PageFlipper动态加载View

知识点：

1.PageFlipper基本用法及动态添加View；

2.PageFlipper结合手势翻页+特效；

3.WindowManager的基本用法。

任意张图片实现循环滑动，其实PageFlipper当前最多的子View个数(ChildViewCount)小于等于2.

fliper_item.xml:

[java]
<?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:gravity="center" >

    <ImageView
        android:id="@+id/img"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center" />

</LinearLayout>

main.xml:

[java]
<?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"
    android:orientation="vertical" >

    <ViewFlipper
        android:id="@+id/myViewFlipper"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

    </ViewFlipper>

</LinearLayout>

MainActivity.java:

[java]
package com.xyz.pagefilter;

import android.app.Activity;
import android.content.Context;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.Window;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.widget.ImageView;
import android.widget.ViewFlipper;

public class MainActivity extends Activity implements OnTouchListener,
        OnGestureListener {

    private LayoutInflater mInflater;
    private WindowManager wm = null;
    private WindowManager.LayoutParams wmParams = null;

    private ImageView leftbtn = null;
    private ImageView rightbtn = null;

    private int mAlpha = 0;
    private boolean isHide;

    private int mCurrPos = 0;

    private ViewFlipper viewFlipper = null;
    private GestureDetector mGestureDetector;

    private int[] mImages = new int[] { R.drawable.img_0, R.drawable.img_1,
            R.drawable.img_2, R.drawable.img_3, R.drawable.img_4,
            R.drawable.img_5, R.drawable.img_6, R.drawable.img_7,
            R.drawable.img_8, R.drawable.img_9 };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.main);

        mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        viewFlipper = (ViewFlipper) this.findViewById(R.id.myViewFlipper);
        setView(mCurrPos, 0);
        initFloatView();

        // viewFlipper.setLongClickable(true);
        viewFlipper.setOnTouchListener(this);
        mGestureDetector = new GestureDetector(this);

    }

    private void initFloatView() {
        wm = (WindowManager) getApplicationContext().getSystemService(
                Context.WINDOW_SERVICE);
        wmParams = new WindowManager.LayoutParams();

        wmParams.type = LayoutParams.TYPE_PHONE;
        wmParams.format = PixelFormat.RGBA_8888;

        wmParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
                | LayoutParams.FLAG_NOT_FOCUSABLE;

        wmParams.x = 0;
        wmParams.y = 0;

        wmParams.width = 50;
        wmParams.height = 50;

        createLeftFloatView();
        createRightFloatView();
    }

    private void createLeftFloatView() {
        leftbtn = new ImageView(this);
        leftbtn.setImageResource(R.drawable.prev);
        leftbtn.setAlpha(0);
        leftbtn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View arg0) {
                movePrevious();
            }
      &nb

补充：web前端 , JavaScript ,