[Android Studio] tuliobarata:
Hello,

I'm trying to create an app with some tabs that link to different activities, I was able to do that with tabhost and normal buttons with onClick=startActivity, but I had some problems losing the scrollbar position from tabs on every activity change.

Well, now I was reading about fragments, and its really interesting. i created the app with the codes below, I can click in every tab and I can see the content (just watched one tutorial with that), but I cant figure out how could I open one different activity in the FrameLayout when I click in each tab. I see that the code gets the tabs id and then uses it to create one text, what I cant figure out is how to verify if the ID is "X", it would open the "activity2", "....3", "....4", "...n". I tried to put some IFs inside it, but nothing worked.

Is there a way to do that ? This an ideal way of doing that or should I change something to make it easier and better ?

activity_main.xml

<android.support.v4.app.FragmentTabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/horizontalScrollView"
android:scrollbars="none"
android:scrollbarSize="0dp">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"/>
</HorizontalScrollView>

<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />

</LinearLayout>

</android.support.v4.app.FragmentTabHost>

MainActivity.java

package com.example.tbarata.myapplication;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;

public class MainActivity extends FragmentActivity {
private FragmentTabHost mTabHost;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);

mTabHost.addTab(
mTabHost.newTabSpec("tab1").setIndicator("Tab 1111", null),
FragmentTab.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab2").setIndicator("Tab 2222", null),
FragmentTab.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab3").setIndicator("Tab 3333", null),
FragmentTab.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab44").setIndicator("Tab 44", null),
FragmentTab.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab5").setIndicator("Tab 55", null),
FragmentTab.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab6").setIndicator("Tab 66", null),
FragmentTab.class, null);
}
}

activity_fragment_layout.xml

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:background="#eaecee">

<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical|center_horizontal"
android:text="@string/hello_world"
android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

FragmentTab.java

package com.example.tbarata.myapplication;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class FragmentTab extends Fragment {

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_fragment_layout, container, false);
TextView tv = (TextView) v.findViewById(R.id.text);
tv.setText(this.getTag() + " Content");
return v;
}
}

Thanks very much!

barata