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主页面源码如下,viewPager里放了三个view,现在通过view1 = getLocalActivityManager().startActivity("activity01",new Intent(IndexActivity.this, MainActivity.class)).getDecorView();等三句实现了子activity间的滑动,但是用toast显示发现似乎三个子activity是同时都onCreate()了。。求教一下能否不用这个语句和ActivityGroup实现activity的滑动。。安卓新手请多包涵。
public class IndexActivity extends ActivityGroup{
private ViewPager viewPager;
private PagerTabStrip pagerTabStrip;
private View view1, view2, view3;
private List<View> viewList;
private List<String> titleList;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.index);
initView();
}
private void initView() {
viewPager = (ViewPager) findViewById(R.id.viewpager);
//pagerTitleStrip = (PagerTitleStrip) findViewById(R.id.pagertitle);
pagerTabStrip=(PagerTabStrip) findViewById(R.id.pagertab);
pagerTabStrip.setTabIndicatorColor(getResources().getColor(R.color.gold));
pagerTabStrip.setDrawFullUnderline(false);
pagerTabStrip.setBackgroundColor(getResources().getColor(R.color.white));
pagerTabStrip.setTextSpacing(50);
LayoutInflater lf = getLayoutInflater().from(this);
//view1 = lf.inflate(R.layout.start_activity, null);
view1 = getLocalActivityManager().startActivity("activity01",new Intent(IndexActivity.this, MainActivity.class)).getDecorView();
view2 = getLocalActivityManager().startActivity("activity02",new Intent(IndexActivity.this, SetActivity.class)).getDecorView();
view3 = getLocalActivityManager().startActivity("activity03",new Intent(IndexActivity.this, StatisticsActivity.class)).getDecorView();
viewList = new ArrayList<View>();// 将要分页显示的View装入数组中
viewList.add(view1);
viewList.add(view2);
viewList.add(view3);
titleList = new ArrayList<String>();// 每个页面的Title数据
titleList.add("主页");
titleList.add("设置");
titleList.add("统计");
PagerAdapter pagerAdapter = new PagerAdapter() {
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}
@Override
public int getCount() {
return viewList.size();
}
@Override
public void destroyItem(ViewGroup container, int position,
Object object) {
container.removeView(viewList.get(position));
}
@Override
public int getItemPosition(Object object) {
return super.getItemPosition(object);
}
@Override
public CharSequence getPageTitle(int position) {
return titleList.get(position);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(viewList.get(position));
return viewList.get(position);
}
};
viewPager.setAdapter(pagerAdapter);
}
}
2个回复
回复:
不建议使用viewpager+activity的组合,建议使用viewpager+fragment的组合,这也是google官方推荐的
回复:
用一个Activity 继承 ActivityGroup 然后在这个ActivityGroup中 将需要的Activity 初始化成View
ActivityGroup中有这个方法
View view = getLocalActivityManager().startActivity("FIRST1", new Intent(this,Activity.class)).getDecorView();
得到View之后 存储到 List<View>集合中
然后 设置到 PageAdapter中 就可以实现你想要的效果了
其实用 Fragment 也可以.
个人认为 都由自己的好处.用ViewPager 也可以灵活的 对组Activity进行操作.更新等操作.
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