I have used a TabHost to setup my tabs, but now i want to change the color of line under the tab if selected. I know this is possible only with action bar or Action bar sherlock. So i searched a lot on SO but found no proper answer as to how to change the colour of line under the tabs. I have managed to set up the tabs using action bar sherlock library.
Here is a image of what i want
Hope it shows what i want.
This is the main class of
public class MainActivity extends SherlockActivity implements
ActionBar.TabListener {
private TextView mSelected;
public int THEME = R.style.Theme_Sherlock;
#Override
public void onCreate(Bundle savedInstanceState) {
setTheme(THEME); // Used for theme switching in samples
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSelected = (TextView) findViewById(R.id.text);
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 1; i <= 3; i++) {
ActionBar.Tab tab = getSupportActionBar().newTab();
tab.setText("Tab " + i);
tab.setTabListener(this);
getSupportActionBar().addTab(tab);
}
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction transaction) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction transaction) {
mSelected.setText("Selected: " + tab.getText());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction transaction) {
}
}
and the xml is
<?xml version="1.0" encoding="utf-8"?>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:text="tab_navigation_content" />
<TextView
android:id="#+id/text"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
and i have used this library.
Related
I have a main Activity with a navigation drawer and I'm trying to realize a layout like Play Music App with tabs.
The MainActivity has a FrameLayout like a container:
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
and I want to put inside the #+id/container a Fragment with Tabs.
How's the best way to do this?
I thought I can create a MyFragment which extends Fragment and implements TabListener.
The associated layout could be like
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v4.view.ViewPager>
But then how can I proceed?
Try following the following steps:
First, create your activity and extend FragmentActivity and implement TabListener
Secondly, create your TabsPagerAdapter
Thirdly, create your fragment (or fragments if more than one is needed).
You can then set the adapter in your activity after requesting navigation mode to tabs.
Code Sample
public class SampleActivity extends FragmentActivity implements ActionBar.TabListener {
private ViewPager viewPager;
private ActionBar actionBar;
private TabsPagerAdapter mAdapter;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.gd_pager);
getActionBar().setDisplayHomeAsUpEnabled(true);
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
String [] tabs = new String[]{"Tab1", "Tab2", "Tab3", "Tab3"};
for(String tab : tabs)
{
actionBar.addTab(actionBar.newTab()
.setText(tab)
.setTabListener(this));
}
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft)
{
viewPager.setCurrentItem(tab.getPosition());
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener()
{
#Override
public void onPageSelected(int position)
{
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2)
{
}
#Override
public void onPageScrollStateChanged(int arg0)
{
}
});
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
}
I put some tabs in the action bar with the following code. Everything looks fine. There are 5 tabs here. I coded each tab to open a new layout. But the problem is only the first tab works fine. Second tab opens the fifth layout and third, fouth, fifth tabs are not working. When I remove the fifth tab, then second tab opens the fourth layout and, other buttons are not woking, I couldn't silve this problem. Please help me. Thank you!
Here is my codings,
main class file;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
android.app.ActionBar actionbar = getActionBar();
actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
ActionBar.TabListener tabListener = new ActionBar.TabListener() {
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
// show the given tab
}
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction ft) {
// hide the given tab
}
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction ft) {
// probably ignore this event
}
};
ActionBar.Tab baby = actionbar.newTab().setText("Baby")
.setTabListener(tabListener);
ActionBar.Tab books = actionbar.newTab().setText("Books")
.setTabListener(tabListener);
ActionBar.Tab electronics = actionbar.newTab().setText("Electronics")
.setTabListener(tabListener);
ActionBar.Tab health = actionbar.newTab().setText("Health and Beauty")
.setTabListener(tabListener);
ActionBar.Tab sports = actionbar.newTab().setText("Sports")
.setTabListener(tabListener);
Fragment babyFragment = new Baby();
Fragment booksFragment = new Books();
Fragment electronicsFragment = new Electronics();
Fragment healthFragment = new Health();
//Fragment sportsFragment = new Sports();
baby.setTabListener(new MyTabsListener(babyFragment));
books.setTabListener(new MyTabsListener(booksFragment));
books.setTabListener(new MyTabsListener(electronicsFragment));
books.setTabListener(new MyTabsListener(healthFragment));
//books.setTabListener(new MyTabsListener(sportsFragment));
actionbar.addTab(baby);
actionbar.addTab(books);
actionbar.addTab(electronics);
actionbar.addTab(health);
actionbar.addTab(sports);
}
class MyTabsListener implements ActionBar.TabListener {
public Fragment fragment;
public MyTabsListener(Fragment fragment) {
this.fragment = fragment;
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
ft.replace(R.id.fragment_container, fragment);
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
ft.remove(fragment);
}
}
every other other java file looks like this;
public class Baby extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.baby, container, false);
}
}
main xml file;
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:layout_gravity="center">
<LinearLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</LinearLayout>
</LinearLayout>
Pleease help me to solve this problem.
The error seems to be here:
baby.setTabListener(new MyTabsListener(babyFragment)); // OK
books.setTabListener(new MyTabsListener(booksFragment)); // OK
books.setTabListener(new MyTabsListener(electronicsFragment)); // !!
books.setTabListener(new MyTabsListener(healthFragment)); // !!
You are setting the different listeners to the same tab (that's why the "books" shows the "health" fragment, and the others do nothing).
I am trying to create a scrollable tabs using fragment.
Tabs are showing and scrolling also. But the problem is the tab content is not showing.
I am using fragments to show the contents. I am new in this topic : fragment. Am I missing anything in this code?
Please help me.
public class SrollableTab extends Activity
{
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
ActionBar bar = getActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
bar.addTab(createTab("Tab 1"));
bar.addTab(createTab("Tab 2"));
bar.addTab(createTab("Tab 3"));
bar.addTab(createTab("Tab 4"));
bar.addTab(createTab("Tab 5"));
bar.addTab(createTab("Tab 6"));
if (savedInstanceState != null) {
bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
}
}
public Tab createTab(String tabTitle)
{
ActionBar bar = getActionBar();
Tab tab = bar.newTab().setText(tabTitle).setTabListener(new TabFragment());
return tab;
}
class TabFragment extends Fragment implements TabListener
{
#Override
public void onCreate(Bundle fragmentState)
{
super.onCreate(fragmentState);
}
#Override
public View onCreateView(LayoutInflater inflator, ViewGroup container, Bundle savedState)
{
View view = inflator.inflate(R.layout.tab_content, container, false);
TextView t = (TextView)view.findViewById(R.id.txtTab);
t.setText("tab content");
return view;
}
#Override
public void onActivityCreated(Bundle savedState)
{
super.onActivityCreated(savedState);
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}
}
tab_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ffffff" >
<TextView android:id="#+id/txtTab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="hello"
android:textColor="#ff0000"/>
</LinearLayout>
This may be old but found my own solution on this.
I've use PagerSlidingTabStrip for a while now until I start using the new material TabLayout. Both works on Activity, but not on Fragments. This are some discussion about the bug on fragments.
The fix I've come up with is, on settings viewpager's adater (usually extended with FragmentPagerAdapter) on its constructor parameter it needs FragmentManager, instead of using the activity's FragmentManager use the fragment's one instead which is getChildFragmentManager().
That fix it. Android bugs still annoys me though.
Cheers
I am using a ViewPager to swipe between 4 tabs. I'd love to align the tabs where the current tab is in the aligned middle and there is one tab (if available) on far right, and one on far left.
I know you can do some tricky stuff like that with some of the Third party libraries (for example, by Jake Wharton). But can I have this control with the native ViewPager? (I am also using Support Library v4.)
At the very least, my question is, can I define how many tabs show up on the screen? I have 4, and would like 3 at any given time.
Here is my layout
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
The normal view of a tabbed app has three tabs on the top, and you are allowed to swipe through them. If you have more tabs in your viewpager, you can scroll through as many as you like.
The implementation would be similar to this:
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
private ViewPager ViewPager;
private TabsPagerAdapter SectionsPagerAdapter;
private ActionBar actionBar;
private String[] tabs = { "Event Details", "Line-up", "Donations", "Concert"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialisation
ViewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
SectionsPagerAdapter = new TabsPagerAdapter(getSupportFragmentManager());
ViewPager.setAdapter(SectionsPagerAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));
}
ViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, android.app.FragmentTransaction ft) {
ViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) {
}
}
Hope this helps :)
I used Tab-activity in my application,but this class is depreciated now,how can I replace this with fragment.I have implemented sub tabs also for each tabs.Can any one help me by providing sample code to implement this changes?
Check out these links
http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html
https://stackoverflow.com/questions/9714650/converting-tabactivity-into-fragmentactivity
The first has sample code on how to build tabs using fragments (you can pretty much use it as is), and the latter is a discussion about the same.
Use actionbar with only tabs.ActionBarSherlock library can do this very easily. Go through TabNavigationCollapsed class in samples of ActionBarSherlock.
public class TabNavigationCollapsed extends SherlockActivity implements ActionBar.TabListener {
private TextView mSelected;
#Override
public void onCreate(Bundle savedInstanceState) {
setTheme(SampleList.THEME); //Used for theme switching in samples
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_navigation);
mSelected = (TextView)findViewById(R.id.text);
getSupportActionBar().setDisplayShowHomeEnabled(false);
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 1; i <= 3; i++) {
ActionBar.Tab tab = getSupportActionBar().newTab();
tab.setText("Tab " + i);
tab.setTabListener(this);
getSupportActionBar().addTab(tab);
}
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction transaction) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction transaction) {
mSelected.setText("Selected: " + tab.getText());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction transaction) {
}
}