问题描述
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, theaction bar, and all the other UI features that I'm missing out on. Iunderstand I can have multiple fragments in an activity, havedifferent layouts based upon the device and all that good stuff butI'm struggling with getting some tab stuff the way I want. Iunderstand how to add tabs, switching between them but how do I havemore than one fragment in a tab? So for example I have essentially twoscreens I want the user to be able to switch back and forth fromeasily (why I want to use tabs). If I have two separate activities Ican specify this in xml files and use setContentView using the layoutsbelow
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 containsone fragment but I'm not sure how get the first layout into a singletab. 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();
}
}
}
这篇关于动作条的标签与多个片段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！