Android中通过ViewPager实现左右滑屏(下)
2012-11-29 21:12
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上文接《android中通过ViewPager实现左右滑屏(上)》
使用实例3
.代码片段1
if(imgUrls.size() > 1){ position = position + 200 * imgUrls.size(); }viewPager.setCurrentItem(position);
代码片段2
private class MyPagerAdapter extends PagerAdapter {
@Override public void destroyItem(View view, int i, Object object) { ViewPager viewPager = (ViewPager) view; View view2 = (View) object; viewPager.removeView(view2); }
@Override public void finishUpdate(View arg0) { }
@Override public int getCount() { if (imgUrls != null) { if (imgUrls.size() > 1) { return Integer.MAX_VALUE; } else { return imgUrls.size(); } } return 0; }
@Override public Object instantiateItem(View view, int i) { i = i % imgUrls.size(); ViewPager viewPager = (ViewPager) view; View view2 = getView(i, imgUrls, context); viewPager.addView(view2); return view2; }
@Override public boolean isViewFromObject(View view, Object object) { return view == object; }
@Override public void restoreState(Parcelable arg0, ClassLoader arg1) { }
@Override public Parcelable saveState() { return null; }
@Override public void startUpdate(View arg0) { }
}
代码片段3
public View getView(int position, List<String> urls, Context context) { View view = null; int size = urls.size(); position = position % size; LayoutInflater inflater = LayoutInflater.from(context); view = inflater.inflate(R.layout.page_item, null); ImageUtil.setDrawable(view, urls.get(position)); return view; }
如果我们在多个Activity之间进行左右滑动,那么可以采用如下的代码获得View,以实现在多个Activity之间进行左右滑动
private View getView(String id, Class<?> clazz, Serializable data) { Intent intent = new Intent(); Bundle bundle = new Bundle(); bundle.putSerializable("data",data); intent.putExtras(bundle); intent.setClass(this, clazz); /*getLocalActivityManager是ActivityGroup的一个方法*/ return getLocalActivityManager().startActivity(id, intent).getDecorView(); }
结束!
使用实例3
.代码片段1
if(imgUrls.size() > 1){ position = position + 200 * imgUrls.size(); }viewPager.setCurrentItem(position);
代码片段2
private class MyPagerAdapter extends PagerAdapter {
@Override public void destroyItem(View view, int i, Object object) { ViewPager viewPager = (ViewPager) view; View view2 = (View) object; viewPager.removeView(view2); }
@Override public void finishUpdate(View arg0) { }
@Override public int getCount() { if (imgUrls != null) { if (imgUrls.size() > 1) { return Integer.MAX_VALUE; } else { return imgUrls.size(); } } return 0; }
@Override public Object instantiateItem(View view, int i) { i = i % imgUrls.size(); ViewPager viewPager = (ViewPager) view; View view2 = getView(i, imgUrls, context); viewPager.addView(view2); return view2; }
@Override public boolean isViewFromObject(View view, Object object) { return view == object; }
@Override public void restoreState(Parcelable arg0, ClassLoader arg1) { }
@Override public Parcelable saveState() { return null; }
@Override public void startUpdate(View arg0) { }
}
代码片段3
public View getView(int position, List<String> urls, Context context) { View view = null; int size = urls.size(); position = position % size; LayoutInflater inflater = LayoutInflater.from(context); view = inflater.inflate(R.layout.page_item, null); ImageUtil.setDrawable(view, urls.get(position)); return view; }
如果我们在多个Activity之间进行左右滑动,那么可以采用如下的代码获得View,以实现在多个Activity之间进行左右滑动
private View getView(String id, Class<?> clazz, Serializable data) { Intent intent = new Intent(); Bundle bundle = new Bundle(); bundle.putSerializable("data",data); intent.putExtras(bundle); intent.setClass(this, clazz); /*getLocalActivityManager是ActivityGroup的一个方法*/ return getLocalActivityManager().startActivity(id, intent).getDecorView(); }
结束!
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