自定义viewpager——可开关切换动画
public class NoAnimationViewPager extends ViewPager {
public NoAnimationViewPager(Context context) {
super(context);
}
public NoAnimationViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public void setCurrentItem(int item, boolean smoothScroll) {
super.setCurrentItem(item, smoothScroll);
}
@Override
public void setCurrentItem(int item) {
//去除页面切换时的滑动翻页效果
super.setCurrentItem(item, true);
}
}
viewpager的adapter
`/** * 作者：created by meixi * 邮箱：1085220040@qq.com * 日期：2020/1/6 15:40 */ public class ViewPagerAdapter extends PagerAdapter { private List<GridView> gridList; public ViewPagerAdapter() { gridList = new ArrayList<>(); } public void add(List<GridView> datas) { if (gridList.size() > 0) { gridList.clear(); } gridList.addAll(datas); notifyDataSetChanged(); } @Override public int getCount() { return gridList.size(); } @Override public int getItemPosition(Object object) { return POSITION_NONE; } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } @Override public Object instantiateItem(ViewGroup container, int position) { container.addView(gridList.get(position)); return gridList.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } }`
activity调用即可
============
private NoAnimationViewPager vp;
private ViewPagerAdapter mAdapter;
private List<GridView> gridList = new ArrayList<>();
private int WHAT_AUTO_PLAY = 1000;
private int autoPlayDuration = 2000;//刷新间隔时间
private int num = 0;
private boolean ifauto = true;
private List<GongXuEntity> mGongXuEntities = new ArrayList<>();
protected Handler mHandler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
if (msg.what == WHAT_AUTO_PLAY) {
Log.e("lgq", "==33==" + ifauto);
if (ifauto){
num++;
if (num==0){
vp.setCurrentItem(num,false);
}else {
vp.setCurrentItem(num,true);
}
}
if (mGongXuEntities.size() - 1 == num) {
num = -1;
}
mHandler.sendEmptyMessageDelayed(WHAT_AUTO_PLAY, autoPlayDuration);
}
return false;
}
});
mAdapter = new ViewPagerAdapter();
vp.setAdapter(mAdapter);
getdata();
showHostsj();
vp.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE) {
ifauto = false;
}
if (event.getAction() == MotionEvent.ACTION_UP) {
ifauto = true;
}
return false;
}
});
//圆点指示器
mHandler.sendEmptyMessageDelayed(WHAT_AUTO_PLAY, autoPlayDuration);
public void getdata() {
for (int a = 0; a < 6; a++) {
GongXuEntity entity = new GongXuEntity();
entity.setCity("城市" + a);
if (a % 2 == 0) {
entity.setSupplyDemand("0");
} else {
entity.setSupplyDemand("1");
}
entity.setContent("领道风味" + a);
mGongXuEntities.add(entity);
}
// mGongXuEntities.add(.......省略);
}
public void showHostsj() {
for (int j = 0; j < mGongXuEntities.size(); j++) {
GridView gridView = new GridView(this);
HomeGridViewAdapter adapter = new HomeGridViewAdapter(mGongXuEntities, j);
gridView.setTag(j);
gridView.setNumColumns(1);
gridView.setAdapter(adapter);
