点击radiobutton之后 fragment不加载 有人知道为什么吗
public class MainActivity extends FragmentActivity {
private MyLazyViewpager pager;
private RadioButton home_page;
private RadioButton find;
private RadioButton my;
private RadioGroup group;
List<Fragment> fragments = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
}
private void initView() {
pager = (MyLazyViewpager) findViewById(R.id.pager);
home_page = (RadioButton) findViewById(R.id.home_page);
find = (RadioButton) findViewById(R.id.find);
my = (RadioButton) findViewById(R.id.my);
group = (RadioGroup) findViewById(R.id.group);
fragments.add(new HomeFragment());
fragments.add(new FindFragment());
fragments.add(new MyFragment());
}
private void initData() {
FragmentPagerAdapter adapter = new FragmentPagerAdapter(getSupportFragmentManager()) {
@Override
public Fragment getItem(int position) {
return fragments.get(position);
}
@Override
public int getCount() {
return fragments.size();
}
};
pager.setAdapter(adapter);
group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
switch (i) {
case R.id.home_page:
pager.setCurrentItem(0, false);
break;
case R.id.find:
pager.setCurrentItem(1, false);
break;
case R.id.my:
pager.setCurrentItem(2, false);
break;
}
}
});
pager.setCurrentItem(0);
pager.setOnPageChangeListener(new MyLazyViewpager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
switch (position) {
case 0:
group.check(R.id.home_page);
break;
case 1:
group.check(R.id.find);
break;
case 2:
group.check(R.id.my);
break;
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}