动作条的标签与多个片段多个、片段、动作、标签
我一直在尝试更新我的应用程序，并获得与碎片去时， 行动起来吧，和所有其他的用户界面功能，我错过了。一世 明白我可以有多个片段的活性，有 根据设备不同的布局和所有的好东西，但 我挣扎着得到一些标签的东西，我想要的方式。一世 了解如何添加标签，它们之间的切换，但我怎么有 不是在一个标签一个片段多吗？因此，例如我有两个基本 屏幕我希望用户能够从来回切换 轻松（我为什么要使用标签）。如果我有两个独立的活动我 可以在XML文件中注明这一点，并使用该布局使用的setContentView 以下
I've been trying to update my app and get going with fragments, the action bar, and all the other UI features that I'm missing out on. I understand I can have multiple fragments in an activity, have different layouts based upon the device and all that good stuff but I'm struggling with getting some tab stuff the way I want. I understand how to add tabs, switching between them but how do I have more than one fragment in a tab? So for example I have essentially two screens I want the user to be able to switch back and forth from easily (why I want to use tabs). If I have two separate activities I can specify this in xml files and use setContentView using the layouts below
tab1_layout.xml
tab1_layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<fragment
android:name="com.example.tabrefactor.Fragment1"
android:id="@+id/fragment_1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
<fragment
android:name="com.example.tabrefactor.Fragment2"
android:id="@+id/fragment_2"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
<fragment
android:name="com.example.tabrefactor.Fragment3"
android:id="@+id/fragment_3"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
tab2_layout.xml
tab2_layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<fragment
android:name="com.example.tabrefactor.Fragment4"
android:id="@+id/fragment_4"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
我的第二个布局转换为使用标签，因为它仅包含 一个片段，但我不知道怎么弄的第一个布局到一个单一的 标签。是东西是允许的？在此先感谢，
I can convert the second layout to using tabs since its only contains one fragment but I'm not sure how get the first layout into a single tab. Is that something that's allowed? Thanks in advance,
杰森prenger
推荐答案
我会离开这个开放柜面有人有简化或一个更好的主意...
I'll leave this open incase someone has a simplification or a better idea...
最终去与具有3框架布局基地布局的解决办法...
Eventually went with a workaround of having a base layout with 3 frame layouts...
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<FrameLayout
android:id="@+id/fragment_sb"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<FrameLayout
android:id="@+id/fragment_local"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<FrameLayout
android:id="@+id/fragment_rest"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
然后在我的片活动我做了处理的变化之间的自定义TabListener。在code我用的是下面（我使用actionbarsherlock所以它会看起来比正常的东西略有不同）
Then in my activity with the tabs I made a custom TabListener that handled the changes between. The code I used is below (I'm using actionbarsherlock so it'll look slightly different than the normal stuff)
public class TabActivity extends FragmentActivity {
Fragment1 fragment1;
Fragment2 fragment2;
Fragment3 fragment3;
Fragment4 fragment4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_layout);
final ActionBar bar = getSupportActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
bar.setDisplayShowTitleEnabled(true);
bar.setDisplayShowHomeEnabled(false);
bar.setTitle("Title");
bar.addTab(bar.newTab()
.setIcon(R.drawable.ic_list_tab_selected)
.setTabListener(new ListTabListener(this)));
bar.addTab(bar.newTab()
.setIcon(R.drawable.ic_map_tab_selected)
.setTabListener(new MapTabListener(this)));
if (savedInstanceState != null) {
bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("tab", getSupportActionBar().getSelectedNavigationIndex());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.test_menu, menu);
return super.onCreateOptionsMenu(menu);
}
public static class ListTabListener implements ActionBar.TabListener {
private static final String fragment1Tag = "fragment1_tag";
private static final String fragment2Tag = "fragment2_tag";
private static final String fragment3Tag = "fragment3_tag";
private FragmentActivity activity;
private Fragment1 fragment1;
private Fragment2 fragment2;
private Fragment3 fragment3;
public ListTabListener(FragmentActivity activity) {
this.activity = activity;
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
fragment1 = (Fragment1) activity.getSupportFragmentManager().findFragmentByTag(fragment1Tag);
if (fragment1 != null && !fragment1.isDetached()) {
ft.detach(fragment1);
}
fragment2 = (Fragment2) activity.getSupportFragmentManager().findFragmentByTag(fragment1Tag);
if (fragment2 != null && !fragment2.isDetached()) {
ft.detach(fragment2);
}
fragment3 = (Fragment3) activity.getSupportFragmentManager().findFragmentByTag(fragment1Tag);
if (fragment3 != null && !fragment3.isDetached()) {
ft.detach(fragment3);
}
ft.commit();
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction nullFt) {
//Reselected don't do anything
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction nullFt) {
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
if(fragment1 == null) {
fragment1 = new Fragment1();
ft.add(R.id.fragment_sb, fragment1, fragment1Tag);
} else {
ft.attach(fragment1);
}
if(fragment2 == null) {
fragment2 = new Fragment2();
ft.add(R.id.fragment_local, fragment2, fragment2Tag);
} else {
ft.attach(fragment2);
}
if(fragment3 == null) {
fragment3 = new Fragment3();
ft.add(R.id.fragment_rest, fragment3, fragment3Tag);
} else {
ft.attach(fragment3);
}
ft.commit();
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction nullFt) {
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
if(fragment1 != null)
ft.detach(fragment1);
if(fragment2 != null)
ft.detach(fragment2);
if(fragment3 != null)
ft.detach(fragment3);
ft.commit();
}
}
public static class MapTabListener implements ActionBar.TabListener {
private static final String fragment4Tag = "fragment4_tag";
private FragmentActivity activity;
private Fragment4 fragment4;
public MapTabListener(FragmentActivity activity) {
this.activity = activity;
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
fragment4 = (Fragment4) activity.getSupportFragmentManager().findFragmentByTag(fragment4Tag);
if (fragment4 != null && !fragment4.isDetached()) {
ft.detach(fragment4);
}
ft.commit();
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction nullFt) {
//Reselected don't do anything
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction nullFt) {
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
if(fragment4 == null) {
fragment4 = new Fragment4();
ft.add(R.id.fragment_rest, fragment4, fragment4Tag);
} else {
ft.attach(fragment4);
}
ft.commit();
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction nullFt) {
FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
if(fragment4 != null)
ft.detach(fragment4);
ft.commit();
}
}
}
