当然,您不必重新编写您的应用程序。您只需要一些折射即可。
首先,您应该首先将代码移至SherlockFragment
(s).
假设您有 3 项活动:ActivityA
, ActivityB
and ActivityC
.
1 - 创建 3 个 SherlockFragment:FragmentA
, FragmentB
and FragmentC
.
2 - 将代码移至片段并进行必要的修改(例如覆盖、上下文引用等)。
3 - 现在使用选项卡导航设置主 FragmentActivity:
public class MainActivity extends SherlockFragmentActivity implements
ActionBar.TabListener, ViewPager.OnPageChangeListener {
private FragmentA mFragmentA;
private FragmentB mFragmenB;
private FragmentC mFragmentC;
private ViewPager mViewPager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(new MainPagerAdapter(
getSupportFragmentManager()));
mViewPager.setOnPageChangeListener(this);
mViewPager.setPageMarginDrawable(R.drawable.border);
mViewPager.setPageMargin(16);
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.addTab(actionBar.newTab().setText(R.string.tab_a_title)
.setTabListener(this));
actionBar.addTab(actionBar.newTab().setText(R.string.tab_b_title)
.setTabListener(this));
actionBar.addTab(actionBar.newTab()
.setText(R.string.tab_c_title).setTabListener(this));
}
@Override
public void onPageSelected(int position) {
getSupportActionBar().setSelectedNavigationItem(position);
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
private class MainPagerAdapter extends FragmentPagerAdapter {
public MainPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return (mFragmentA = new FragmentA());
case 1:
return (mFragmentB = new FragmentB());
case 2:
return (mFragmentC = new FragmentC());
}
return null;
}
@Override
public int getCount() {
return 3;
}
}
}
main_layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>