package com.quark.localslideshowview;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.Message;
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.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import com.qingmu.jianzhidaren.R;
/**
* ViewPager实现的轮播图广告自定义视图；
* 既支持自动轮播页面也支持手势滑动切换页面,可以动态设置图片的张数
* @author CLUO
*
*/
@SuppressLint("HandlerLeak")
public class LocalSlideShowView extends FrameLayout {
///private ImageLoaderWraper imageLoaderWraper;
private final static boolean isAutoPlay = false; //设定是否可以轮播
private List<Integer> imageUris;
private List<ImageView> imageViewsList;
private List<ImageView> dotViewsList;
private LinearLayout mLinearLayout;
private ViewPager mViewPager;
private int currentItem = 0;
private ScheduledExecutorService scheduledExecutorService;
@SuppressLint("HandlerLeak")
private Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
mViewPager.setCurrentItem(currentItem);
}
};
public LocalSlideShowView(Context context) {
this(context,null);
}
public LocalSlideShowView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public LocalSlideShowView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
initUI(context);
if(!(imageUris.size()<=0))
{
setImageUris(imageUris);
}
if(isAutoPlay){
startPlay();
}
}
private void initUI(Context context){
imageViewsList = new ArrayList<ImageView>();
dotViewsList = new ArrayList<ImageView>();
imageUris=new ArrayList<Integer>();
//imageLoaderWraper=ImageLoaderWraper.getInstance(context.getApplicationContext());
LayoutInflater.from(context).inflate(R.layout.local_layout_slideshow, this, true);
mLinearLayout=(LinearLayout)findViewById(R.id.linearlayout);
mViewPager = (ViewPager) findViewById(R.id.viewPager);
}
@SuppressLint("NewApi")
public void setImageUris(List<Integer> imageuris)
{
for(int i=0;i<imageuris.size();i++)
{
imageUris.add(imageuris.get(i));
}
LinearLayout.LayoutParams lp=new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(20, 0, 0, 0);
for(int i=0;i<imageUris.size();i++){
ImageView imageView=new ImageView(getContext());
imageView.setScaleType(ScaleType.FIT_XY);//铺满屏幕
imageView.setBackgroundResource((int)imageuris.get(i));
imageViewsList.add(imageView);
ImageView viewDot = new ImageView(getContext());
if(i == 0){
viewDot.setBackgroundResource(R.drawable.main_dot_white);
}else{
viewDot.setBackgroundResource(R.drawable.main_dot_light);
}
viewDot.setLayoutParams(lp);
dotViewsList.add(viewDot);
mLinearLayout.addView(viewDot);
}
mViewPager.setFocusable(true);
mViewPager.setAdapter(new MyPagerAdapter());
mViewPager.setOnPageChangeListener(new MyPageChangeListener());
}
private void startPlay(){
scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
scheduledExecutorService.scheduleAtFixedRate(new SlideShowTask(), 1, 4, TimeUnit.SECONDS);
}
@SuppressWarnings("unused")
private void stopPlay(){
scheduledExecutorService.shutdown();
}
/**
* 设置选中的tip的背景
* @param selectItems
*/
private void setImageBackground(int selectItems){
for(int i=0; i<dotViewsList.size(); i++){
if(i == selectItems){
dotViewsList.get(i).setBackgroundResource(R.drawable.main_dot_white);
}else{
dotViewsList.get(i).setBackgroundResource(R.drawable.main_dot_light);
}
}
}
private class MyPagerAdapter extends PagerAdapter{
@Override
public void destroyItem(View container, int position, Object object) {
// TODO Auto-generated method stub
//((ViewPag.er)container).removeView((View)object);
((ViewPager)container).removeView(imageViewsList.get(position));
}
@Override
public Object instantiateItem(View container, int position) {
// TODO Auto-generated method stub
((ViewPager)container).addView(imageViewsList.get(position));
return imageViewsList.get(position);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return imageViewsList.size();
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return arg0 == arg1;
}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {
// TODO Auto-generated method stub
}
@Override
public Parcelable saveState() {
// TODO Auto-generated method stub
return null;
}
@Override
public void startUpdate(View arg0) {
// TODO Auto-generated method stub
}
@Override
public void finishUpdate(View arg0) {
// TODO Auto-generated method stub
}
}
private class MyPageChangeListener implements OnPageChangeListener{
boolean isAutoPlay = false;
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
switch (arg0) {
case 1:
isAutoPlay = false;
break;
case 2:
isAutoPlay = true;
break;
case 0:
if (mViewPager.getCurrentItem() == mViewPager.getAdapter().getCount() - 1 && !isAutoPlay) {
// mViewPager.setCurrentItem(0);//滚动到尾部后可以重新跳到第一个
mViewPager.setCurrentItem(mViewPager.getCurrentItem());//滚动到尾部后不可以重新跳到第一个
}
else if (mViewPager.getCurrentItem() == 0 && !isAutoPlay) {
// mViewPager.setCurrentItem(mViewPager.getAdapter().getCount() - 1);//滑动到第一个时，允许滑动跳转到最后一个。
mViewPager.setCurrentItem(0);//滑动到第一个时，不允许滑动跳转到最后一个。
}
break;
}
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageSelected(int pos) {
// TODO Auto-generated method stub
setImageBackground(pos % imageUris.size());
}
}
private class SlideShowTask implements Runnable{
@Override
public void run() {
// TODO Auto-generated method stub
synchronized (mViewPager) {
currentItem = (currentItem+1)%imageViewsList.size();
handler.obtainMessage().sendToTarget();
}
}
}
@SuppressWarnings("unused")
private void destoryBitmaps() {
for (int i = 0; i < imageViewsList.size(); i++) {
ImageView imageView = imageViewsList.get(i);
Drawable drawable = imageView.getDrawable();
if (drawable != null) {
drawable.setCallback(null);
}
}
}
}