在ViewPager中设置操作栏标题 [英] Setting action bar title in ViewPager
本文介绍了在ViewPager中设置操作栏标题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我的ViewPager由许多片段组成.我在actionBar内显示片段的标题，并且我使用下面的代码来设置title.由于ViewPager还启动了相邻的片段，因此我在actionbar中看到了下一个片段的标题.在viewpager的操作栏中设置标题的方法如何?
My ViewPager consists of many fragments .I am displaying title of fragment inside actionBar and i am using below code to set title .Since the ViewPager also initiates adjacent fragments I see in actionbar the title of next fragment.What should be the correct way to proceed in setting the title in actionbar of viewpager?
private class MyPagerAdapter extends FragmentPagerAdapter {
private String[] titles = {
"Titleme", "Titletos", "Titleos", "Titles", "MeTitle5", "Title6",
"Title7", "Title8"
};
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
@Override
public android.support.v4.app.Fragment getItem(int pos) {
Bundle args = new Bundle();
switch (pos) {
case 0:
currentFragment = new HomeFragment();
getSupportActionBar().setTitle("HomeFragment");
break;
case 1:
currentFragment = new HomeFragment5();
getSupportActionBar().setTitle("HomeFragment5");
break;
case 2:
currentFragment = new HomeFragment4();
getSupportActionBar().setTitle("HomeFragment4");
break;
case 3:
currentFragment = new HomeFragment3();
getSupportActionBar().setTitle("HomeFragment3");
break;
case 4:
currentFragment = new HomeFragment4();
getSupportActionBar().setTitle("HomeFragment4");
break;
case 5:
currentFragment = new ChlHome();
getSupportActionBar().setTitle("ChlHome");
break;
case 6:
currentFragment = new GiFragment();
getSupportActionBar().setTitle("GiFragment");
break;
case 7:
currentFragment = new FlList();
getSupportActionBar().setTitle(" FlList");
break;
default:
}
return currentFragment;
}
@Override
public int getCount() {
return 8;
}
}
根据 shkschneider 答案
final ViewPager pager = (ViewPager) findViewById(R.id.viewPager);
pager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
PagerSlidingTabStrip tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs);
tabs.setViewPager(pager);
pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
pager.setCurrentItem(position);
switch(position) {
case 0:
getSupportActionBar().setTitle("H");
break;
case 1:
getSupportActionBar().setTitle("P");
break;
case 2:
getSupportActionBar().setTitle("A");
break;
case 3:
getSupportActionBar().setTitle("V");
break;
case 4:
getSupportActionBar().setTitle("M");
break;
case 5:
getSupportActionBar().setTitle("C");
break;
case 6:
getSupportActionBar().setTitle("G");
break;
case 7:
getSupportActionBar().setTitle("F");
break;
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
private class MyPagerAdapter extends FragmentPagerAdapter {
private String[] titles = {
"Titleme", "Titletos", "Titleos", "Titles", "MeTitle5", "Title6",
"Title7", "Title8"
};
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
@Override
public android.support.v4.app.Fragment getItem(int pos) {
Bundle args = new Bundle();
switch (pos) {
case 0:
currentFragment = new HomeFragment();
break;
case 1:
currentFragment = new HomeFragment5();
break;
case 2:
currentFragment = new HomeFragment4();
break;
case 3:
currentFragment = new HomeFragment3();
break;
case 4:
currentFragment = new HomeFragment4();
break;
case 5:
currentFragment = new ChlHome();
break;
case 6:
currentFragment = new GiFragment();
break;
case 7:
currentFragment = new FlList();
break;
default:
}
return currentFragment;
}
@Override
public int getCount() {
return 8;
}
}
}
推荐答案
尝试一下.....
final ViewPager pager = (ViewPager) findViewById(R.id.viewPager);
pager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
PagerSlidingTabStrip tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs);
tabs.setViewPager(pager);
//Use tabs for setting listener
tabs
.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
// TODO Auto-generated method stub
tabs.setNextFocusRightId(position);
actionBar.setTitle(titles[pos]);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrollStateChanged(int pos) {
// TODO Auto-generated method stub
}
});
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