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我有一個帶有5片段的viewpager，它由TabLayout處理片段視圖。他們都在活動中，我希望當第二個tablayout選擇活動的textview的文本更改，並且我的兩個控件的可見性應該已經消失。我如何從viewpager的片段中更改文本和控件活動的可見性
這就是我所做的viewpager：
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_page);
tf = Typeface.createFromAsset(getAssets(), "IRANSans_Bold.ttf");
context=this;
/*if(UIHelper.check_screenSize(this, Configuration.SCREENLAYOUT_SIZE_SMALL))
{
FloatingActionButton fab=(FloatingActionButton)UIHelper.getInstance(this,R.id.fav_GetAddress, Tags.fab);
fab.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
}*/
Display display=getWindowManager().getDefaultDisplay();
int height=display.getHeight();
tabCustomization();
/*changeTabsFont();*/
setupTabIcons();
tabLayout.getTabAt(0).getIcon().setColorFilter(Color.parseColor("#f6fda6"), PorterDuff.Mode.SRC_IN);
linearLayout=(LinearLayout)tabLayout.getTabAt(0).getCustomView();
ImageView firstTab=(ImageView)linearLayout.getChildAt(0);
firstTab.setColorFilter(Color.parseColor("#f6fda6"), PorterDuff.Mode.SRC_IN);
fav_GetAddress();
}
/* @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Toast.makeText(this,"get Activity camera result",Toast.LENGTH_LONG).show();
}*/
private void tabCustomization() {
viewPager = (CustomViewPager) findViewById(R.id.viewPager);
viewPager.setPagingEnabled(false);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new MenuFragment(), "Menu");
adapter.addFragment(new AddressFragment(), "Fave Address");
adapter.addFragment(new SearchFragment(), "Searching");
adapter.addFragment(new IssueFragment(), "Another Info");
adapter.addFragment(new ProfileFragment(), "Login");
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(5);
for (int i = 0; i < tabLayout.getTabCount(); i++) {
TabLayout.Tab tab = tabLayout.getTabAt(i);
tab.setCustomView(adapter.getTabView(tabLayout,i));
}
ViewGroup vg = (ViewGroup) tabLayout.getChildAt(0);
int tabsCount = vg.getChildCount();
Log.i("TabChild",String.valueOf(tabsCount));
// Iterate over all tabs and set the custom view
}
public void setupViewPager(ViewPager viewPager) {
}
private void setupTabIcons() {
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
tabLayout.getTabAt(3).setIcon(tabIcons[3]);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener(){
@Override
public void onTabSelected(TabLayout.Tab tab) {
/*tab.getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN);*/
linearLayout=(LinearLayout)tab.getCustomView();
ImageView v=(ImageView)linearLayout.getChildAt(0);
v.setColorFilter(Color.parseColor("#f6fda6"), PorterDuff.Mode.SRC_IN);
TextView google_header_address=(TextView)findViewById(R.id.google_header_address);
TextView select_address=(TextView)findViewById(R.id.select_address);
ImageView fav_GetAddress=(ImageView)findViewById(R.id.fav_GetAddress);
switch (tab.getPosition())
{
case 0:
google_header_address.setText("where to get it?");
select_address.setText("Adding Fav Address");
fav_GetAddress.setVisibility(View.VISIBLE);
break;
case 1:
google_header_address.setText("");
select_address.setText("Select Address");
fav_GetAddress.setVisibility(View.GONE);
break;
case 2:
google_header_address.setText("");
select_address.setText("Searching Info");
fav_GetAddress.setVisibility(View.GONE);
break;
case 3:
google_header_address.setText("");
select_address.setText("AnotherText");
fav_GetAddress.setVisibility(View.GONE);
break;
case 4:
google_header_address.setText("");
select_address.setText("login");
fav_GetAddress.setVisibility(View.GONE);
break;
}
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
linearLayout=(LinearLayout)tab.getCustomView();
ImageView v=(ImageView)linearLayout.getChildAt(0);
v.setColorFilter(Color.parseColor("#ffffff"), PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
public View getCustomView(TabLayout tabLayout,int position){
View view = LayoutInflater.from(getApplicationContext())
.inflate(R.layout.custom_tab, tabLayout, false);
TextView textView= (TextView) view.findViewById(R.id.tabText);
textView.setText(getPageTitle(position));
textView.setTypeface(tf);
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
imageView.setImageResource(tabIcons[position]);
return view;
}
public View getTabView(TabLayout tabLayout,int position) {
// Given you have a custom layout in `res/layout/custom_tab.xml` with a TextView and ImageView
View view = LayoutInflater.from(getApplicationContext())
.inflate(R.layout.custom_tab, tabLayout, false);
TextView textView= (TextView) view.findViewById(R.id.tabText);
textView.setText(getPageTitle(position));
textView.setTypeface(tf);
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
imageView.setImageResource(tabIcons[position]);
return view;
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
我希望在片段顯示 – AndroidDev
在哪裏做它onViewcreated，onCreateView，的onResume，在開始 – AndroidDev
是的，你可以從onCreateView – Pavya