我的viewPager有两种布局。当我在第一个布局中时,我不能更改第二个布局的值。我如何才能到达另一个布局的组件?
主要活动
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sorag);
slideViewPager = findViewById(R.id.slideViewPager);
sliderAdapter = new SliderAdapter(this, bilet , slideViewPager, );
slideViewPager.setAdapter(sliderAdapter);
slideViewPager.setCurrentItem(mCurrentSorag);
slideViewPager.setOffscreenPageLimit(11);
slideViewPager.addOnPageChangeListener(viewListener);
}
ViewPager.OnPageChangeListener viewListener = new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
mCurrentSorag = position;;
}
@Override
public void onPageScrollStateChanged(int state) {
}
};
我的适配器(PagerAdapter)
@Override
public int getCount() {
return 11;
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view == object;
}
@Override
public Object instantiateItem(@NonNull ViewGroup container, final int position) {
LayoutInflater layoutInflater;
layoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
assert layoutInflater != null;
final View view = layoutInflater.inflate(R.layout.slide_layout, container, false);
final View viewResult = layoutInflater.inflate(R.layout.slide_layout_Result, container, false);
if(position<10) {
textViewStatusResult = viewResult.findViewById(R.id.textViewStatusLast);
textViewResult = viewResult.findViewById(R.id.textViewResultLast);
textViewStatusResult.setText("Not changed textView");
button.setOnClickListener(new View.OnClickListener() {
@SuppressLint("RestrictedApi")
@Override
public void onClick(View v) {
// onButtonClicked(button, position, currentButton, view);
}
});
container.addView(view);
container.addView(viewResult);
return view;
}else{
textViewStatusResult = viewResult.findViewById(R.id.textViewStatusLast);
textViewResult = viewResult.findViewById(R.id.textViewResultLast);
textViewResult.setText("1 / 10");
}
container.addView(viewResult);
return viewResult;
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
container.removeView((LinearLayout)object);
}
我在instantiateItem函数中创建了一个两个视图。当应用程序启动时,它在位置〈10时工作。但我想改变我在第一个位置时的情况。
1条答案
按热度按时间wn9m85ua1#
向
ViewPager
的构造函数传入一个回调对象,并让Activity处理回调。在回调中,您可以根据需要更新其他布局。