私のプロジェクトにactionsherlockを正常に実装しました.soここに私のコードがあります:
public class ActiontabActivity extends SherlockFragmentActivity {
ActionMode mMode;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTheme(R.style.Theme_Sherlock_Light_DarkActionBar);
setContentView(R.layout.main);
ActionBar bar = getSupportActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
bar.setDisplayShowHomeEnabled(false);
bar.setDisplayShowTitleEnabled(false);
bar.setTitle("Currency Exchange");
bar.addTab(bar
.newTab()
.setText("Converter")
.setTabListener(
new TabListener<Fragment>(this, "Converter",
ConverterTab.class, null)));
bar.addTab(bar
.newTab()
.setText("Favorites")
.setTabListener(
new TabListener1<Fragment>(this, "Favorites",
FavoritesTab.class, null)));
if (savedInstanceState != null) {
bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("tab", getSupportActionBar()
.getSelectedNavigationIndex());
}
public class TabListener<T extends Fragment> implements ActionBar.TabListener {
private final FragmentActivity mActivity;
private final String mTag;
private final Class<ConverterTab> mClass;
private final Bundle mArgs;
private Fragment mFragment;
public TabListener(FragmentActivity activity, String tag, Class<ConverterTab> clz, Bundle args) {
mActivity = activity;
mTag = tag;
mClass = clz;
mArgs = args;
FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();
// Check to see if we already have a fragment for this tab, probably
// from a previously saved state. If so, deactivate it, because our
// initial state is that a tab isn't shown.
mFragment = mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
if (mFragment != null && !mFragment.isDetached()) {
ft.detach(mFragment);
}
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
ft = mActivity.getSupportFragmentManager()
.beginTransaction();
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName(),
mArgs);
ft.add(android.R.id.content, mFragment, mTag);
ft.commit();
} else {
ft.attach(mFragment);
ft.commit();
}
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
if (mFragment != null) {
//this segment removes the back history of everything in the tab you are leaving so when you click on the tab again you go back to a fresh start
FragmentManager man = mFragment.getFragmentManager();
if(man.getBackStackEntryCount()>0) //this check is required to prevent null point exceptions when clicking off of a tab with no history
man.popBackStack(man.getBackStackEntryAt(0).getName(), FragmentManager.POP_BACK_STACK_INCLUSIVE); //this pops the stack back to index 0 so you can then detach and then later attach your initial fragment
//also it should be noted that if you do popbackstackimmediate here instead of just popbackstack you will see a flash as the gui changes back to the first fragment when the code executes
//end
ft.detach(mFragment);
}
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
public class TabListener1<T extends Fragment> implements ActionBar.TabListener {
private final FragmentActivity mActivity;
private final String mTag;
private final Class<FavoritesTab> mClass;
private final Bundle mArgs;
private Fragment mFragment;
public TabListener1(FragmentActivity activity, String tag, Class<FavoritesTab> clz, Bundle args) {
mActivity = activity;
mTag = tag;
mClass = clz;
mArgs = args;
FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();
// Check to see if we already have a fragment for this tab, probably
// from a previously saved state. If so, deactivate it, because our
// initial state is that a tab isn't shown.
mFragment = mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
if (mFragment != null && !mFragment.isDetached()) {
ft.detach(mFragment);
}
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
ft = mActivity.getSupportFragmentManager()
.beginTransaction();
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName(),
mArgs);
ft.add(android.R.id.content, mFragment, mTag);
ft.commit();
} else {
ft.attach(mFragment);
ft.commit();
}
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
if (mFragment != null) {
//this segment removes the back history of everything in the tab you are leaving so when you click on the tab again you go back to a fresh start
FragmentManager man = mFragment.getFragmentManager();
if(man.getBackStackEntryCount()>0) //this check is required to prevent null point exceptions when clicking off of a tab with no history
man.popBackStack(man.getBackStackEntryAt(0).getName(), FragmentManager.POP_BACK_STACK_INCLUSIVE); //this pops the stack back to index 0 so you can then detach and then later attach your initial fragment
//also it should be noted that if you do popbackstackimmediate here instead of just popbackstack you will see a flash as the gui changes back to the first fragment when the code executes
//end
ft.detach(mFragment);
}
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
}
そして、コンバータータブにボタンを1つ、お気に入りタブにチェックボックスを1つ配置しました。しかし、アプリを実行すると、最初はどのタブも選択されていませんでした。メイン画面を表示するだけで、タブを押すと、その内容が表示されます。タブが選択されていないときに他のコンテンツを表示したかった.どうすればこれを行うことができるか教えてください?最初にメイン画面を表示し、次に任意のタブを選択するとそのコンテンツを表示する方法を教えてください.私の画像を添付しました事業：
