activity获取子fragment的控件

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/m0_37686625/article/details/80696707

在adapter里面定义currentFragment 

重写 setprimarryItem方法 

使用 adapter.currentFragment .getView().findViewById

public class AdapterViewPager extends FragmentStatePagerAdapter {
 public Fragment currentFragment;
 @Override
    public void setPrimaryItem(ViewGroup container, int position, Object object) {
        this.currentFragment = (Fragment) object;
        super.setPrimaryItem(container, position, object);
    }
}

public class ActivityRelationAirport extends ActivityBase {
 (TextView) adapterViewPager.currentFragment.getView().findViewById(R.id.text)).setText（"我是当前fragment里面的textview"）;

}